Android安卓毕业设计实战项目（15）---Fast健身 APP【锻炼，计划列表，体重跟踪，身体追踪，导入导出健身记录】包括登陆注册页面+开机动画+个人信息页面（源码在文末）

r囧r小猫 2024-05-07 17:10 46阅读 0赞

## Android安卓毕业设计实战项目（15）—Fast健身 APP【锻炼，计划列表，体重跟踪，身体追踪，导入导出健身记录】包括登陆注册页面+开机动画+个人信息页面（源码在文末???） ##

## 一.项目运行介绍 ##

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视频演示：https://www.bilibili.com/video/BV1Hh4y1Y7S2/  
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## 二.具体实现 ##

TimePickerDialogFragment.java

package com.easyfitness;
    
    import android.app.Dialog;
    import android.os.Bundle;
    
    import androidx.fragment.app.DialogFragment;
    
    import com.ikovac.timepickerwithseconds.MyTimePickerDialog;
    
    //@SuppressLint("ValidFragment")
    public class TimePickerDialogFragment extends DialogFragment {
    
        private final int Hours = 0;
        private final int Minutes = 0;
        private final int Seconds = 0;
        private MyTimePickerDialog.OnTimeSetListener onTimeSetListener;
    
        static public TimePickerDialogFragment newInstance(MyTimePickerDialog.OnTimeSetListener onTimeSetListener, int hour, int min, int sec) {
            TimePickerDialogFragment pickerFragment = new TimePickerDialogFragment();
            pickerFragment.setOnTimeSetListener(onTimeSetListener);
    
            //Pass the date in a bundle.
            Bundle bundle = new Bundle();
            bundle.putInt("HOUR", hour);
            bundle.putInt("MINUTE", min);
            bundle.putInt("SECOND", sec);
            pickerFragment.setArguments(bundle);
            return pickerFragment;
        }
    
        public Dialog onCreateDialog(Bundle savedInstanceState) {
            Bundle bundle = getArguments();
            int hour = bundle.getInt("HOUR");
            int min = bundle.getInt("MINUTE");
            int sec = bundle.getInt("SECOND");
    
            // Create a new instance of TimePickerDialog and return it
            return new MyTimePickerDialog(getActivity(), onTimeSetListener, hour, min, sec, true);
        }
    
        private void setOnTimeSetListener(MyTimePickerDialog.OnTimeSetListener listener) {
            this.onTimeSetListener = listener;
        }
    }

这段代码是一个 Android 应用中的 Java 类，用于创建一个时间选择对话框（TimePickerDialogFragment）。下面是对代码的详细解释：

1.  包名和导入：
    
     *  `package com.easyfitness;`：这是 Java 包声明，表示这个类位于 `com.easyfitness` 包中。
     *  导入必要的 Android 类和库，例如 `android.app.Dialog`、`android.os.Bundle`、`androidx.fragment.app.DialogFragment` 以及 `com.ikovac.timepickerwithseconds.MyTimePickerDialog`。
2.  注释：
    
     *  `//@SuppressLint("ValidFragment")`：这是一个注释，用于告诉编译器忽略与此类相关的特定警告。在这种情况下，它似乎是关于 `ValidFragment` 的，但是这个注释在代码中被注释掉了，所以不会生效。
3.  类定义：
    
     *  `TimePickerDialogFragment` 是一个继承自 `DialogFragment` 的自定义类，表示时间选择对话框的片段。
4.  类的成员变量：
    
     *  `Hours`、`Minutes` 和 `Seconds` 是用于表示小时、分钟和秒钟的常量。这些常量的值都被初始化为0。
     *  `onTimeSetListener` 是一个 `MyTimePickerDialog.OnTimeSetListener` 的接口对象，用于监听时间选择的事件。
5.  `newInstance` 静态方法：
    
     *  这是一个静态工厂方法，用于创建 `TimePickerDialogFragment` 的新实例。
     *  接受 `MyTimePickerDialog.OnTimeSetListener` 对象以及小时、分钟和秒钟作为参数。
     *  在方法内部，创建了一个新的 `TimePickerDialogFragment` 实例，并为其设置 `onTimeSetListener`。
     *  创建一个 Bundle 对象，将小时、分钟和秒钟作为数据放入 Bundle 中。
     *  最后，将 Bundle 设置为 `pickerFragment` 的参数，并返回 `pickerFragment`。
6.  `onCreateDialog` 方法：
    
     *  该方法在创建对话框时被调用。
     *  从参数 `savedInstanceState` 中获取保存的数据（如果有）。
     *  从 Bundle 中获取小时、分钟和秒钟的值。
     *  使用这些值创建一个新的 `MyTimePickerDialog` 对话框，并传入上下文、`onTimeSetListener`、小时、分钟、秒钟以及一个布尔值来指示是否显示秒钟选择。
     *  返回创建的对话框。
7.  `setOnTimeSetListener` 方法：
    
     *  这是一个私有方法，用于设置 `onTimeSetListener`。
     *  用于在 `newInstance` 方法内部设置监听器的回调。

总之，这段代码定义了一个用于创建时间选择对话框的 `TimePickerDialogFragment` 类，它允许你传入小时、分钟和秒钟的初始值，并监听用户对时间的选择。这对于在 Android 应用中实现时间选择功能非常有用。

MainActivity.java

package com.easyfitness;
    
    import android.Manifest;
    import android.app.AlertDialog;
    import android.content.Intent;
    import android.content.SharedPreferences;
    import android.content.pm.PackageManager;
    import android.content.res.Configuration;
    import android.net.Uri;
    import android.os.Build;
    import android.os.Bundle;
    import android.os.Environment;
    import android.view.Gravity;
    import android.view.Menu;
    import android.view.MenuInflater;
    import android.view.MenuItem;
    import android.view.View;
    import android.widget.AdapterView;
    import android.widget.EditText;
    import android.widget.ListView;
    import android.widget.PopupMenu;
    import android.widget.Toast;
    
    import androidx.annotation.NonNull;
    import androidx.appcompat.app.ActionBarDrawerToggle;
    import androidx.appcompat.app.AppCompatActivity;
    import androidx.appcompat.app.AppCompatDelegate;
    import androidx.appcompat.content.res.AppCompatResources;
    import androidx.appcompat.widget.Toolbar;
    import androidx.core.app.ActivityCompat;
    import androidx.core.content.ContextCompat;
    import androidx.drawerlayout.widget.DrawerLayout;
    import androidx.fragment.app.FragmentManager;
    import androidx.fragment.app.FragmentTransaction;
    import androidx.lifecycle.ViewModelProvider;
    import androidx.preference.PreferenceManager;
    
    import com.easyfitness.DAO.DAOMachine;
    import com.easyfitness.DAO.DAOProfile;
    import com.easyfitness.DAO.DatabaseHelper;
    import com.easyfitness.DAO.Machine;
    import com.easyfitness.DAO.Profile;
    import com.easyfitness.DAO.cardio.DAOOldCardio;
    import com.easyfitness.DAO.cardio.OldCardio;
    import com.easyfitness.DAO.export.CVSManager;
    import com.easyfitness.DAO.program.DAOProgram;
    import com.easyfitness.DAO.program.Program;
    import com.easyfitness.DAO.record.DAOCardio;
    import com.easyfitness.DAO.record.DAOFonte;
    import com.easyfitness.DAO.record.DAORecord;
    import com.easyfitness.DAO.record.DAOStatic;
    import com.easyfitness.DAO.record.Record;
    import com.easyfitness.bodymeasures.BodyPartListFragment;
    import com.easyfitness.enums.DistanceUnit;
    import com.easyfitness.enums.ExerciseType;
    import com.easyfitness.enums.WeightUnit;
    import com.easyfitness.fonte.FontesPagerFragment;
    import com.easyfitness.intro.MainIntroActivity;
    import com.easyfitness.machines.MachineFragment;
    import com.easyfitness.programs.ProgramListFragment;
    import com.easyfitness.utils.DateConverter;
    import com.easyfitness.utils.ImageUtil;
    import com.easyfitness.utils.MusicController;
    import com.easyfitness.utils.UnitConverter;
    import com.mikhaellopez.circularimageview.CircularImageView;
    import com.onurkaganaldemir.ktoastlib.KToast;
    
    import java.io.File;
    import java.io.FileNotFoundException;
    import java.io.IOException;
    import java.io.InputStream;
    import java.text.SimpleDateFormat;
    import java.util.ArrayList;
    import java.util.Date;
    import java.util.List;
    import java.util.Locale;
    
    import cn.pedant.SweetAlert.SweetAlertDialog;
    
    public class MainActivity extends AppCompatActivity {
    
        private static final int TIME_INTERVAL = 2000; // # milliseconds, desired time passed between two back presses.
    
        public static String FONTESPAGER = "FontePager";
        public static String WEIGHT = "Weight";
        public static String PROFILE = "Profile";
        public static String BODYTRACKING = "BodyTracking";
        public static String BODYTRACKINGDETAILS = "BodyTrackingDetail";
        public static String ABOUT = "About";
        public static String SETTINGS = "Settings";
        public static String MACHINES = "Machines";
        public static String MACHINESDETAILS = "MachinesDetails";
        public static String WORKOUTS = "Workouts";
        public static String WORKOUTPAGER = "WorkoutPager";
        public static String PREFS_NAME = "prefsfile";
        private final int REQUEST_CODE_INTRO = 111;
        private final int PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE_FOR_EXPORT = 1001;
        private final int PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE_FOR_IMPORT = 1002;
        private final int MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE = 103;
    
    
        private static final int IMPORT_DATABASE = 2;
        public static final int OPEN_MUSIC_FILE = 3;
    
        private final MusicController musicController = new MusicController(this);
        CustomDrawerAdapter mDrawerAdapter;
        List<DrawerItem> dataList;
        /* Fragments */
        private FontesPagerFragment mpFontesPagerFrag = null;
        private WeightFragment mpWeightFrag = null;
        private ProfileFragment mpProfileFrag = null;
        private MachineFragment mpMachineFrag = null;
        private SettingsFragment mpSettingFrag = null;
        private AboutFragment mpAboutFrag = null;
        private BodyPartListFragment mpBodyPartListFrag = null;
        private ProgramListFragment mpWorkoutListFrag;
        private String currentFragmentName = "";
        private DAOProfile mDbProfils = null;
        private Profile mCurrentProfile = null;
        private long mCurrentProfilID = -1;
        private Toolbar top_toolbar = null;
        /* Navigation Drawer */
        private DrawerLayout mDrawerLayout = null;
        private ListView mDrawerList = null;
        private ActionBarDrawerToggle mDrawerToggle = null;
        private CircularImageView roundProfile = null;
        private String mCurrentMachine = "";
        private boolean mIntro014Launched = false;
        private boolean mMigrationBD15done = false;
        private boolean mMigrationToScopedStoragedone = false;
        private long mBackPressed;
        private AppViMo appViMo;
    
        private final PopupMenu.OnMenuItemClickListener onMenuItemClick = item -> {
            switch (item.getItemId()) {
                case R.id.create_newprofil:
                    getActivity().CreateNewProfile();
                    return true;
                case R.id.change_profil:
                    String[] profilListArray = getActivity().mDbProfils.getAllProfile();
    
                    AlertDialog.Builder changeProfilbuilder = new AlertDialog.Builder(getActivity());
                    changeProfilbuilder.setTitle(getActivity().getResources().getText(R.string.profil_select_profil))
                            .setItems(profilListArray, (dialog, which) -> {
                                ListView lv = ((AlertDialog) dialog).getListView();
                                Object checkedItem = lv.getAdapter().getItem(which);
                                setCurrentProfile(checkedItem.toString());
                                KToast.infoToast(getActivity(), getActivity().getResources().getText(R.string.profileSelected) + " : " + checkedItem.toString(), Gravity.BOTTOM, KToast.LENGTH_LONG);
                                //Toast.makeText(getApplicationContext(), getActivity().getResources().getText(R.string.profileSelected) + " : " + checkedItem.toString(), Toast.LENGTH_LONG).show();
                            });
                    changeProfilbuilder.show();
                    return true;
                case R.id.delete_profil:
                    String[] profildeleteListArray = getActivity().mDbProfils.getAllProfile();
    
                    AlertDialog.Builder deleteProfilbuilder = new AlertDialog.Builder(getActivity());
                    deleteProfilbuilder.setTitle(getActivity().getResources().getText(R.string.profil_select_profil_to_delete))
                            .setItems(profildeleteListArray, (dialog, which) -> {
                                ListView lv = ((AlertDialog) dialog).getListView();
                                Object checkedItem = lv.getAdapter().getItem(which);
                                if (getCurrentProfile().getName().equals(checkedItem.toString())) {
                                    KToast.errorToast(getActivity(), getActivity().getResources().getText(R.string.impossibleToDeleteProfile).toString(), Gravity.BOTTOM, KToast.LENGTH_LONG);
                                } else {
                                    Profile profileToDelete = mDbProfils.getProfile(checkedItem.toString());
                                    mDbProfils.deleteProfile(profileToDelete);
                                    KToast.infoToast(getActivity(), getString(R.string.profileDeleted) + ":" + checkedItem.toString(), Gravity.BOTTOM, KToast.LENGTH_LONG);
                                }
                            });
                    deleteProfilbuilder.show();
                    return true;
                case R.id.rename_profil:
                    getActivity().renameProfil();
                    return true;
                case R.id.param_profil:
                    showFragment(PROFILE);
                    return true;
                default:
                    return false;
            }
        };
    
        @Override
        public void onCreate(Bundle savedInstanceState) {
            SharedPreferences SP = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
            String dayNightAuto = SP.getString("dayNightAuto", "2");
            int dayNightAutoValue;
            try {
                dayNightAutoValue = Integer.parseInt(dayNightAuto);
            } catch (NumberFormatException e) {
                dayNightAutoValue = 2;
            }
            if (dayNightAutoValue == getResources().getInteger(R.integer.dark_mode_value)) {
                AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES);
                SweetAlertDialog.DARK_STYLE = true;
            } else if (dayNightAutoValue == getResources().getInteger(R.integer.light_mode_value)) {
                AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO);
                SweetAlertDialog.DARK_STYLE = false;
            } else {
                AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM);
                int currentNightMode = getResources().getConfiguration().uiMode
                        & Configuration.UI_MODE_NIGHT_MASK;
                switch (currentNightMode) {
                    case Configuration.UI_MODE_NIGHT_YES:
                        SweetAlertDialog.DARK_STYLE = true;
                        break;
                    case Configuration.UI_MODE_NIGHT_NO:
                    default:
                        SweetAlertDialog.DARK_STYLE = false;
                }
            }
    
            super.onCreate(savedInstanceState);
    
            setContentView(R.layout.activity_main);
    
            loadPreferences();
    
            top_toolbar = this.findViewById(R.id.actionToolbar);
            setSupportActionBar(top_toolbar);
            top_toolbar.setTitle(getResources().getText(R.string.app_name));
    
            if (savedInstanceState == null) {
                if (mpFontesPagerFrag == null)
                    mpFontesPagerFrag = FontesPagerFragment.newInstance(FONTESPAGER, 6);
                if (mpWeightFrag == null) mpWeightFrag = WeightFragment.newInstance(WEIGHT, 5);
                if (mpProfileFrag == null) mpProfileFrag = ProfileFragment.newInstance(PROFILE, 10);
                if (mpSettingFrag == null) mpSettingFrag = SettingsFragment.newInstance(SETTINGS, 8);
                if (mpAboutFrag == null) mpAboutFrag = AboutFragment.newInstance(ABOUT, 4);
                if (mpMachineFrag == null) mpMachineFrag = MachineFragment.newInstance(MACHINES, 7);
                if (mpBodyPartListFrag == null)
                    mpBodyPartListFrag = BodyPartListFragment.newInstance(BODYTRACKING, 9);
                if (mpWorkoutListFrag == null)
                    mpWorkoutListFrag = ProgramListFragment.newInstance(WORKOUTS, 11);
            } else {
                mpFontesPagerFrag = (FontesPagerFragment) getSupportFragmentManager().getFragment(savedInstanceState, FONTESPAGER);
                mpWeightFrag = (WeightFragment) getSupportFragmentManager().getFragment(savedInstanceState, WEIGHT);
                mpProfileFrag = (ProfileFragment) getSupportFragmentManager().getFragment(savedInstanceState, PROFILE);
                mpSettingFrag = (SettingsFragment) getSupportFragmentManager().getFragment(savedInstanceState, SETTINGS);
                mpAboutFrag = (AboutFragment) getSupportFragmentManager().getFragment(savedInstanceState, ABOUT);
                mpMachineFrag = (MachineFragment) getSupportFragmentManager().getFragment(savedInstanceState, MACHINES);
                mpBodyPartListFrag = (BodyPartListFragment) getSupportFragmentManager().getFragment(savedInstanceState, BODYTRACKING);
                mpWorkoutListFrag = (ProgramListFragment) getSupportFragmentManager().getFragment(savedInstanceState, WORKOUTS);
            }
    
            appViMo = new ViewModelProvider(this).get(AppViMo.class);
            appViMo.getProfile().observe(this, profile -> {
                // Update UI
                setDrawerTitle(profile.getName());
                setPhotoProfile(profile.getPhoto());
                mCurrentProfilID = profile.getId();
                savePreferences();
            });
    
            DatabaseHelper.renameOldDatabase(this);
    
            if (DatabaseHelper.DATABASE_VERSION >= 15 && !mMigrationBD15done) {
                DAOOldCardio mDbOldCardio = new DAOOldCardio(this);
                DAOMachine lDAOMachine = new DAOMachine(this);
                if (mDbOldCardio.tableExists()) {
                    DAOCardio mDbCardio = new DAOCardio(this);
                    List<OldCardio> mList = mDbOldCardio.getAllRecords();
                    for (OldCardio record : mList) {
                        Machine m = lDAOMachine.getMachine(record.getExercice());
                        String exerciseName = record.getExercice();
                        if (m != null) { // if a machine exists
                            if (m.getType() == ExerciseType.STRENGTH) { // if it is not a Cardio type
                                exerciseName = exerciseName + "-Cardio"; // add a suffix to
                            }
                        }
    
                        mDbCardio.addCardioRecordToFreeWorkout(record.getDate(), exerciseName, record.getDistance(), record.getDuration(), record.getProfil().getId(), DistanceUnit.KM);
                    }
                    mDbOldCardio.dropTable();
    
                    DAORecord daoRecord = new DAORecord(this);
                    List<Record> mFonteList = daoRecord.getAllRecords();
                    for (Record record : mFonteList) {
                        record.setExerciseType(ExerciseType.STRENGTH);
                        daoRecord.updateRecord(record); // Automatically update record Type
                    }
                    List<Machine> machineList = lDAOMachine.getAllMachinesArray();
                    for (Machine record : machineList) {
                        lDAOMachine.updateMachine(record); // Reset all the fields on machines.
                    }
                }
                mMigrationBD15done = true;
                savePreferences();
            }
    
    
    
            if (savedInstanceState == null) {
                showFragment(FONTESPAGER); // Create fragment, do not add to backstack
                currentFragmentName = FONTESPAGER;
            }
    
            dataList = new ArrayList<>();
            mDrawerLayout = findViewById(R.id.drawer_layout);
            mDrawerList = findViewById(R.id.left_drawer);
    
            DrawerItem drawerTitleItem = new DrawerItem("TITLE", R.drawable.ic_person, true);
    
            dataList.add(drawerTitleItem);
            dataList.add(new DrawerItem(this.getResources().getString(R.string.menu_Workout), R.drawable.ic_fitness_center, true));
            dataList.add(new DrawerItem(this.getResources().getString(R.string.MachinesLabel), R.drawable.ic_exercises, true));
            dataList.add(new DrawerItem(this.getResources().getString(R.string.ProgramListLabel), R.drawable.ic_exam, true));
            dataList.add(new DrawerItem(this.getResources().getString(R.string.weightMenuLabel), R.drawable.ic_bathroom_scale, true));
            dataList.add(new DrawerItem(this.getResources().getString(R.string.bodytracking), R.drawable.ic_ruler, true));
            dataList.add(new DrawerItem(this.getResources().getString(R.string.SettingLabel), R.drawable.ic_settings, true));
            dataList.add(new DrawerItem(this.getResources().getString(R.string.AboutLabel), R.drawable.ic_info_outline, true));
    
            mDrawerAdapter = new CustomDrawerAdapter(this, R.layout.custom_drawer_item,
                    dataList);
    
            mDrawerList.setAdapter(mDrawerAdapter);
    
            roundProfile = top_toolbar.findViewById(R.id.imageProfile);
    
            mDrawerToggle = new ActionBarDrawerToggle(
                    this,                  /* host Activity */
                    mDrawerLayout,         /* DrawerLayout object */
                    top_toolbar,  /* nav drawer icon to replace 'Up' caret */
                    R.string.drawer_open, R.string.drawer_close
            );
    
            // Set the list's click listener
            mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
    
            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
            getSupportActionBar().setHomeButtonEnabled(true);
    
            musicController.initView();
    
            // Test if intro has been launched already
            if (!mIntro014Launched) {
                Intent intent = new Intent(this, MainIntroActivity.class);
                startActivityForResult(intent, REQUEST_CODE_INTRO);
            }
    
    
        }
    
        @Override
        protected void onStart() {
            super.onStart();  // Always call the superclass method first
    
            if (mIntro014Launched) {
                initActivity();
                initDEBUGdata();
            }
    
            if ( !mMigrationToScopedStoragedone) { //do the migration only once.
                migrateDatabase();
            }
    
            SharedPreferences SP = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
            boolean bShowMP3 = SP.getBoolean("prefShowMP3", false);
            this.showMP3Toolbar(bShowMP3);
            this.checkLastBackup(SP);
        }
    
        private void checkLastBackup(SharedPreferences SP) {
            int milliSecondsOfDay = 86400000; // 24 * 60 * 60 * 1000
            int milliSecondsOfWeek = 604800000; // 7 * 24 * 60 * 60 * 1000
            long milliSecondsOfMonth = 2419200000L; // 4 * 7 * 24 * 60 * 60 * 1000
    
            long lastBackupUTCTime = SP.getLong("上次备份UTC时间", -1);
            int prefBackupSetting = Integer.parseInt(SP.getString("默认备份设置", "0"));
            if (lastBackupUTCTime == -1 && prefBackupSetting > 0) {
                //KToast.warningToast(getActivity(), getActivity().getResources().getText(R.string.backup_warning_never).toString(), Gravity.BOTTOM, KToast.LENGTH_LONG);
                exportDatabase(getActivity().getResources().getText(R.string.backup_warning_never).toString());
            } else {
                if (prefBackupSetting == 1 && System.currentTimeMillis() - lastBackupUTCTime > milliSecondsOfDay) {
                    //KToast.warningToast(getActivity(), getActivity().getResources().getText(R.string.backup_warning_day).toString(), Gravity.BOTTOM, KToast.LENGTH_LONG);
                    exportDatabase(getActivity().getResources().getText(R.string.backup_warning_day).toString());
                } else if (prefBackupSetting == 2 && System.currentTimeMillis() - lastBackupUTCTime > milliSecondsOfWeek) {
                    //KToast.warningToast(getActivity(), getActivity().getResources().getText(R.string.backup_warning_week).toString(), Gravity.BOTTOM, KToast.LENGTH_LONG);
                    exportDatabase(getActivity().getResources().getText(R.string.backup_warning_week).toString());
                } else if (prefBackupSetting == 3 && System.currentTimeMillis() - lastBackupUTCTime > milliSecondsOfMonth) {
                    //KToast.warningToast(getActivity(), getActivity().getResources().getText(R.string.backup_warning_month).toString(), Gravity.BOTTOM, KToast.LENGTH_LONG);
                    exportDatabase(getActivity().getResources().getText(R.string.backup_warning_month).toString());
                }
            }
        }
    
        private void initDEBUGdata() {
            if (BuildConfig.DEBUG_MODE) {
                // do something for a debug build
                DAOFonte lDbFonte = new DAOFonte(this);
                if (lDbFonte.getCount() == 0) {
                    lDbFonte.addStrengthRecordToFreeWorkout(DateConverter.dateToDate(2019, 7, 1, 12, 34, 56), "锻炼 1", 1, 10, 40, WeightUnit.KG, "", this.getCurrentProfile().getId());
                    lDbFonte.addStrengthRecordToFreeWorkout(DateConverter.dateToDate(2019, 6, 30, 12, 34, 56), "锻炼 2", 1, 10, UnitConverter.LbstoKg(60), WeightUnit.LBS, "", this.getCurrentProfile().getId());
                }
                DAOCardio lDbCardio = new DAOCardio(this);
                if (lDbCardio.getCount() == 0) {
                    lDbCardio.addCardioRecordToFreeWorkout(DateConverter.dateToDate(2019, 7, 1), "跑步锻炼", 1, 10000, this.getCurrentProfile().getId(), DistanceUnit.KM);
                    lDbCardio.addCardioRecordToFreeWorkout(DateConverter.dateToDate(2019, 7, 31), "有氧运动", UnitConverter.MilesToKm(2), 20000, this.getCurrentProfile().getId(), DistanceUnit.MILES);
                }
                DAOStatic lDbStatic = new DAOStatic(this);
                if (lDbStatic.getCount() == 0) {
                    lDbStatic.addStaticRecordToFreeWorkout(DateConverter.dateToDate(2019, 7, 1, 12, 34, 56), "锻炼 ISO 1", 1, 50, 40, this.getCurrentProfile().getId(), WeightUnit.KG, "");
                    lDbStatic.addStaticRecordToFreeWorkout(DateConverter.dateToDate(2019, 7, 31, 12, 34, 56), "锻炼 ISO 2", 1, 60, UnitConverter.LbstoKg(40), this.getCurrentProfile().getId(), WeightUnit.LBS, "");
                }
                DAOProgram lDbWorkout = new DAOProgram(this);
                if (lDbWorkout.getCount() == 0) {
                    lDbWorkout.populate();
                }
            }
        }
    
        public void onRestoreInstanceState(Bundle savedInstanceState) {
            // Always call the superclass so it can restore the view hierarchy
            super.onRestoreInstanceState(savedInstanceState);
        }
    
        @Override
        protected void onSaveInstanceState(@NonNull Bundle outState) {
            super.onSaveInstanceState(outState);
    
            //Save the fragment's instance
            if (getFontesPagerFragment().isAdded())
                getSupportFragmentManager().putFragment(outState, FONTESPAGER, mpFontesPagerFrag);
            if (getWeightFragment().isAdded())
                getSupportFragmentManager().putFragment(outState, WEIGHT, mpWeightFrag);
            if (getProfileFragment().isAdded())
                getSupportFragmentManager().putFragment(outState, PROFILE, mpProfileFrag);
            if (getMachineFragment().isAdded())
                getSupportFragmentManager().putFragment(outState, MACHINES, mpMachineFrag);
            if (getAboutFragment().isAdded())
                getSupportFragmentManager().putFragment(outState, ABOUT, mpAboutFrag);
            if (getSettingsFragment().isAdded())
                getSupportFragmentManager().putFragment(outState, SETTINGS, mpSettingFrag);
            if (getBodyPartFragment().isAdded())
                getSupportFragmentManager().putFragment(outState, BODYTRACKING, mpBodyPartListFrag);
            if (getWorkoutListFragment().isAdded())
                getSupportFragmentManager().putFragment(outState, WORKOUTS, mpWorkoutListFrag);
        }
    
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            // Inflate the menu items for use in the action bar
            MenuInflater inflater = getMenuInflater();
            inflater.inflate(R.menu.main_activity_actions, menu);
    
            // restore the profile picture in case it was overwritten during the menu inflate
            if (mCurrentProfile != null) setPhotoProfile(mCurrentProfile.getPhoto());
    
            return super.onCreateOptionsMenu(menu);
        }
    
        @Override
        public boolean onPrepareOptionsMenu(Menu menu) {
            roundProfile.setOnClickListener(v -> {
                PopupMenu popup = new PopupMenu(getActivity(), v);
                MenuInflater inflater = popup.getMenuInflater();
                inflater.inflate(R.menu.profile_actions, popup.getMenu());
                popup.setOnMenuItemClickListener(onMenuItemClick);
                popup.show();
            });
    
            return super.onPrepareOptionsMenu(menu);
        }
    
        @SuppressWarnings("deprecation")
        private boolean migrateToScopedStorage() {
            boolean success = true;
            File folder = new File(Environment.getExternalStorageDirectory() + "/FastnFitness");
    
            if (folder.exists()) { //migrate all pictures
                //Migrate profile pictures
                DAOProfile daoProfile = new DAOProfile(getBaseContext());
                List<Profile> profileList = daoProfile.getAllProfiles(daoProfile.getWritableDatabase());
                for (Profile profile:profileList) {
                    if(profile.getPhoto()!=null && !profile.getPhoto().isEmpty()) {
                        File sourceFile = new File(profile.getPhoto());
                        File storageDir = getActivity().getExternalFilesDir(Environment.DIRECTORY_PICTURES);
                        if (sourceFile.exists()) {
                            try {
                                File destFile = ImageUtil.copyFile(sourceFile, storageDir);
                                profile.setPhoto(destFile.getAbsolutePath());
                                ImageUtil.saveThumb(destFile.getAbsolutePath());
                                daoProfile.updateProfile(profile);
                            } catch (IOException e) {
                                e.printStackTrace();
                                profile.setPhoto("");
                                daoProfile.updateProfile(profile);
                                success = false;
                            }
                        } else {
                            profile.setPhoto("");
                            daoProfile.updateProfile(profile);
                        }
                    }
                }
    
                //Migrate exercises pictures
                DAOMachine daoMachine = new DAOMachine(getBaseContext());
                List<Machine> machineList = daoMachine.getAllMachinesArray();
                for (Machine machine:machineList) {
                    if(machine.getPicture()!=null && !machine.getPicture().isEmpty()) {
                        File sourceFile = new File(machine.getPicture());
                        File storageDir = getActivity().getExternalFilesDir(Environment.DIRECTORY_PICTURES);
                        if (sourceFile.exists()) {
                            machine.setPicture("");
                            try {
                                File destFile = ImageUtil.copyFile(sourceFile, storageDir);
                                ImageUtil.saveThumb(destFile.getAbsolutePath());
                                machine.setPicture(destFile.getAbsolutePath());
                                daoMachine.updateMachine(machine);
                            } catch (Exception e) {
                                e.printStackTrace();
                                success = false;
                            }
                        }
                        daoMachine.updateMachine(machine);
                    }
                }
            }
            return success;
        }
    
        @SuppressWarnings("deprecation")
        private void migrateDatabase() {
            File folder = new File(Environment.getExternalStorageDirectory() + "/FastnFitness");
            if (!folder.exists()) {
                mMigrationToScopedStoragedone = true;
                savePreferences();
                return;
            }
    
            AlertDialog.Builder exportDbBuilder = new AlertDialog.Builder(this);
            exportDbBuilder.setTitle(getActivity().getResources().getText(R.string.database_migration));
            exportDbBuilder.setMessage(R.string.disclaimer_scoped_storage);
            exportDbBuilder.setPositiveButton(getActivity().getResources().getText(R.string.global_yes), (dialog, which) -> {
                if (!migrateToScopedStorage()) {
                    // Display error box for information
                    AlertDialog.Builder errorDialogBuilder = new AlertDialog.Builder(this);
                    errorDialogBuilder.setTitle(R.string.database_migration);
                    errorDialogBuilder.setMessage(R.string.something_went_wrong);
                    AlertDialog errorDialog = errorDialogBuilder.create();
                    errorDialog.show();
                } else {
                    KToast.infoToast(this, getString(R.string.database_migration_success), Gravity.BOTTOM, KToast.LENGTH_SHORT);
                }
                mMigrationToScopedStoragedone = true;
                savePreferences();
            });
    
            AlertDialog exportDbDialog = exportDbBuilder.create();
            exportDbDialog.show();
        }
    
        private void openExportDatabaseDialog(String autoExportMessage) {
            AlertDialog.Builder exportDbBuilder = new AlertDialog.Builder(this);
    
            exportDbBuilder.setTitle(getActivity().getResources().getText(R.string.export_database));
            exportDbBuilder.setMessage(autoExportMessage + " " + getActivity().getResources().getText(R.string.export_question) + " " + getCurrentProfile().getName() + "?");
            exportDbBuilder.setPositiveButton(getActivity().getResources().getText(R.string.global_yes), (dialog, which) -> {
                CVSManager cvsMan = new CVSManager(getActivity().getBaseContext());
                SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy_MM_dd_H_m_s", Locale.getDefault());
                Date date = new Date();
                String folderName = Environment.DIRECTORY_DOWNLOADS + "/FastnFitness/export/" +  dateFormat.format(date);
                if (cvsMan.exportDatabase(getCurrentProfile(),folderName)) {
                    SharedPreferences SP = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
                    long currentTime = System.currentTimeMillis();
                    SP.edit().putLong("prefLastTimeBackupUTCTime", currentTime).apply();
                    if (mpSettingFrag.getContext() != null) {
                        mpSettingFrag.updateLastBackupSummary(SP, currentTime);
                    }
                    KToast.successToast(getActivity(), getCurrentProfile().getName() + ": " + getActivity().getResources().getText(R.string.export_success) + " - " + folderName, Gravity.BOTTOM, KToast.LENGTH_LONG);
                } else {
                    KToast.errorToast(getActivity(), getCurrentProfile().getName() + ": " + getActivity().getResources().getText(R.string.export_failed), Gravity.BOTTOM, KToast.LENGTH_LONG);
                }
                dialog.dismiss();
            });
    
            exportDbBuilder.setNegativeButton(getActivity().getResources().getText(R.string.global_no), (dialog, which) -> dialog.dismiss());
    
            AlertDialog exportDbDialog = exportDbBuilder.create();
            exportDbDialog.show();
        }
    
        private void exportDatabase(String autoExportMessage) {
            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
                if (ContextCompat.checkSelfPermission(this,
                        Manifest.permission.WRITE_EXTERNAL_STORAGE)
                        != PackageManager.PERMISSION_GRANTED) {
                    ActivityCompat.requestPermissions(this,
                            new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
                            PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE_FOR_EXPORT);
                } else {
                    openExportDatabaseDialog(autoExportMessage);
                }
            } else {
                openExportDatabaseDialog(autoExportMessage);
            }
        }
    
        private void importDatabase() {
            Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
            intent.addCategory(Intent.CATEGORY_OPENABLE);
            intent.setType("text/*");
            startActivityForResult(intent, IMPORT_DATABASE);
        }
    
        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
            // The action bar home/up action should open or close the drawer.
            // ActionBarDrawerToggle will take care of this.
            if (mDrawerToggle.onOptionsItemSelected(item)) {
                return true;
            }
    
            // Handle presses on the action bar items
            switch (item.getItemId()) {
                case R.id.export_database:
                    exportDatabase("");
                    return true;
                case R.id.import_database:
                    importDatabase();
                    return true;
                case R.id.action_deleteDB:
                    // Afficher une boite de dialogue pour confirmer
                    AlertDialog.Builder deleteDbBuilder = new AlertDialog.Builder(this);
    
                    deleteDbBuilder.setTitle(getActivity().getResources().getText(R.string.global_confirm));
                    deleteDbBuilder.setMessage(getActivity().getResources().getText(R.string.deleteDB_warning));
    
                    // Si oui, supprimer la base de donnee et refaire un Start.
                    deleteDbBuilder.setPositiveButton(getActivity().getResources().getText(R.string.global_yes), (dialog, which) -> {
                        List<Profile> lList = mDbProfils.getAllProfiles(mDbProfils.getReadableDatabase());
                        for (int i = 0; i < lList.size(); i++) {
                            Profile mTempProfile = lList.get(i);
                            mDbProfils.deleteProfile(mTempProfile.getId());
                        }
    
                        DAOMachine mDbMachines = new DAOMachine(getActivity());
                        List<Machine> lList2 = mDbMachines.getAllMachinesArray();
                        for (int i = 0; i < lList2.size(); i++) {
                            Machine mTemp = lList2.get(i);
                            mDbMachines.delete(mTemp.getId());
                        }
    
                        DAOProgram mDbPrograms = new DAOProgram(getActivity());
                        List<Program> programList = mDbPrograms.getAll();
                        for (int i = 0; i < programList.size(); i++) {
                            Program mTemp = programList.get(i);
                            mDbPrograms.delete(mTemp.getId());
    
                            DAORecord mDbRecords = new DAORecord(getActivity());
                            List<Record> recordList = mDbRecords.getAllTemplateRecordByProgramArray(mTemp.getId());
                            for (int j = 0; j < recordList.size(); j++) {
                                Record mTempRecord = recordList.get(j);
                                mDbRecords.deleteRecord(mTempRecord.getId());
                            }
                        }
    
                        mIntro014Launched = false; // redisplay the intro
    
                        dialog.dismiss(); // Close the dialog
                        finish(); // Close app
                    });
    
                    deleteDbBuilder.setNegativeButton(getActivity().getResources().getText(R.string.global_no), (dialog, which) -> {
                        // Do nothing
                        dialog.dismiss();
                    });
    
                    AlertDialog deleteDbDialog = deleteDbBuilder.create();
                    deleteDbDialog.show();
    
                    return true;
                case R.id.action_apropos:
                    // Display the fragment as the main content.
                    showFragment(ABOUT);
                    //getAboutFragment().setHasOptionsMenu(true);
                    return true;
                //case android.R.id.home:
                //onBackPressed();
                // return true;
                case R.id.action_chrono:
                    ChronoDialogbox cdd = new ChronoDialogbox(MainActivity.this);
                    cdd.show();
                    return true;
                default:
                    return super.onOptionsItemSelected(item);
            }
        }
    
        @Override
        public void onRequestPermissionsResult(int requestCode,
                                               @NonNull String[] permissions, @NonNull int[] grantResults) {
            // If request is cancelled, the result arrays are empty.
            if (requestCode == PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE_FOR_EXPORT) {
                if (grantResults.length > 0
                        && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    KToast.infoToast(this, getString(R.string.access_granted), Gravity.BOTTOM, KToast.LENGTH_SHORT);
                    openExportDatabaseDialog("");
                } else {
                    KToast.infoToast(this, getString(R.string.another_time_maybe), Gravity.BOTTOM, KToast.LENGTH_SHORT);
                }
            } else if (requestCode == PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE_FOR_IMPORT) {
                if (grantResults.length > 0
                        && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    KToast.infoToast(this, getString(R.string.access_granted), Gravity.BOTTOM, KToast.LENGTH_SHORT);
                    importDatabase();
                } else {
                    KToast.infoToast(this, getString(R.string.another_time_maybe), Gravity.BOTTOM, KToast.LENGTH_SHORT);
                }
            } else if (requestCode == MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE) {
                if (grantResults.length > 0
                        && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    KToast.infoToast(this, getString(R.string.access_granted), Gravity.BOTTOM, KToast.LENGTH_SHORT);
                    musicController.chooseDirectory();
                } else {
                    KToast.infoToast(this, getString(R.string.another_time_maybe), Gravity.BOTTOM, KToast.LENGTH_SHORT);
                }
            }
        }
    
            public boolean CreateNewProfile() {
            AlertDialog.Builder newProfilBuilder = new AlertDialog.Builder(this);
    
            newProfilBuilder.setTitle(getActivity().getResources().getText(R.string.createProfilTitle));
            newProfilBuilder.setMessage(getActivity().getResources().getText(R.string.createProfilQuestion));
    
            // Set an EditText view to get user input
            final EditText input = new EditText(this);
            newProfilBuilder.setView(input);
    
            newProfilBuilder.setPositiveButton(getActivity().getResources().getText(android.R.string.ok), (dialog, whichButton) -> {
                String value = input.getText().toString();
    
                if (value.isEmpty()) {
                    CreateNewProfile();
                } else {
                    // Create the new profil
                    mDbProfils.addProfile(value);
                    // Make it the current.
                    setCurrentProfile(value);
                }
            });
    
            newProfilBuilder.setNegativeButton(getActivity().getResources().getText(android.R.string.cancel), (dialog, whichButton) -> {
                if (getCurrentProfile() == null) {
                    CreateNewProfile();
                }
            });
    
            newProfilBuilder.show();
    
            return true;
        }
    
        public boolean renameProfil() {
            AlertDialog.Builder newBuilder = new AlertDialog.Builder(this);
    
            newBuilder.setTitle(getActivity().getResources().getText(R.string.renameProfilTitle));
            newBuilder.setMessage(getActivity().getResources().getText(R.string.renameProfilQuestion));
    
            // Set an EditText view to get user input
            final EditText input = new EditText(this);
            input.setText(getCurrentProfile().getName());
            newBuilder.setView(input);
    
            newBuilder.setPositiveButton(getActivity().getResources().getText(android.R.string.ok), (dialog, whichButton) -> {
                String value = input.getText().toString();
    
                if (!value.isEmpty()) {
                    // Get current profile
                    Profile temp = getCurrentProfile();
                    // Rename it
                    temp.setName(value);
                    // Commit it
                    mDbProfils.updateProfile(temp);
                    // Make it the current.
                    setCurrentProfile(value);
                }
            });
    
            newBuilder.setNegativeButton(getActivity().getResources().getText(android.R.string.cancel), (dialog, whichButton) -> {
            });
    
            newBuilder.show();
    
            return true;
        }
    
        private void setDrawerTitle(String pProfilName) {
            mDrawerAdapter.getItem(0).setTitle(pProfilName);
            mDrawerAdapter.notifyDataSetChanged();
            mDrawerLayout.invalidate();
        }
    
        /**
         * Swaps fragments in the main content view
         */
        private void selectItem(int position) {
            // Highlight the selected item, update the title, and close the drawer
            mDrawerList.setItemChecked(position, true);
            //setTitle(mPlanetTitles[position]);
            mDrawerLayout.closeDrawer(mDrawerList);
        }
    
        @Override
        public void setTitle(CharSequence title) {
            getSupportActionBar().setTitle(title);
        }
    
        @Override
        protected void onPostCreate(Bundle savedInstanceState) {
            super.onPostCreate(savedInstanceState);
            // Sync the toggle state after onRestoreInstanceState has occurred.
            mDrawerToggle.syncState();
        }
    
        @Override
        public void onConfigurationChanged(@NonNull Configuration newConfig) {
            super.onConfigurationChanged(newConfig);
            mDrawerToggle.onConfigurationChanged(newConfig);
        }
    
        private void showFragment(String pFragmentName) {
    
            if (currentFragmentName.equals(pFragmentName))
                return; // If this is already the current fragment, do no replace.
    
            FragmentManager fragmentManager = getSupportFragmentManager();
            FragmentTransaction ft = fragmentManager.beginTransaction();
    
            // Then show the fragments
            if (pFragmentName.equals(FONTESPAGER)) {
                ft.replace(R.id.fragment_container, getFontesPagerFragment(), FONTESPAGER);
            } else if (pFragmentName.equals(WEIGHT)) {
                ft.replace(R.id.fragment_container, getWeightFragment(), WEIGHT);
            } else if (pFragmentName.equals(SETTINGS)) {
                ft.replace(R.id.fragment_container, getSettingsFragment(), SETTINGS);
            } else if (pFragmentName.equals(MACHINES)) {
                ft.replace(R.id.fragment_container, getMachineFragment(), MACHINES);
            } else if (pFragmentName.equals(WORKOUTS)) {
                ft.replace(R.id.fragment_container, getWorkoutListFragment(), WORKOUTS);
            } else if (pFragmentName.equals(ABOUT)) {
                ft.replace(R.id.fragment_container, getAboutFragment(), ABOUT);
            } else if (pFragmentName.equals(BODYTRACKING)) {
                ft.replace(R.id.fragment_container, getBodyPartFragment(), BODYTRACKING);
            } else if (pFragmentName.equals(PROFILE)) {
                ft.replace(R.id.fragment_container, getProfileFragment(), PROFILE);
            }
            currentFragmentName = pFragmentName;
            ft.commit();
    
        }
    
        @Override
        protected void onStop() {
            super.onStop();
            savePreferences();
        }
    
        public Profile getCurrentProfile() {
            return appViMo.getProfile().getValue();
        }
    
        public void setCurrentProfile(String newProfileName) {
            Profile newProfile = this.mDbProfils.getProfile(newProfileName);
            setCurrentProfile(newProfile);
        }
    
        public void setCurrentProfile(Profile newProfil) {
            appViMo.setProfile(newProfil);
        }
    
        private void setPhotoProfile(String path) {
            ImageUtil imgUtil = new ImageUtil();
    
            // Check if path is pointing to a thumb else create it and use it.
            String thumbPath = imgUtil.getThumbPath(path);
            boolean success = false;
            if (thumbPath != null) {
                success = ImageUtil.setPic(roundProfile, thumbPath);
                mDrawerAdapter.getItem(0).setImg(thumbPath);
            }
    
            if (!success) {
                roundProfile.setImageDrawable(AppCompatResources.getDrawable(getActivity(), R.drawable.ic_person));
                mDrawerAdapter.getItem(0).setImg(null); // Img has priority over Resource so it needs to be reset
                mDrawerAdapter.getItem(0).setImgResID(R.drawable.ic_person);
            }
    
            mDrawerAdapter.notifyDataSetChanged();
            mDrawerLayout.invalidate();
        }
    
        public String getCurrentMachine() {
            return mCurrentMachine;
        }
    
        public void setCurrentMachine(String newMachine) {
            mCurrentMachine = newMachine;
        }
    
        public MainActivity getActivity() {
            return this;
        }
    
        private void loadPreferences() {
            // Restore preferences
            SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
            mCurrentProfilID = settings.getLong("currentProfil", -1); // return -1 if it doesn't exist
            mIntro014Launched = settings.getBoolean("intro014Launched", false);
            mMigrationBD15done = settings.getBoolean("migrationBD15done", false);
            mMigrationToScopedStoragedone = settings.getBoolean("migrationToScopedStoragedone", false);
        }
    
        private void savePreferences() {
            // Restore preferences
            SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
            SharedPreferences.Editor editor = settings.edit();
            editor.putLong("currentProfil", mCurrentProfilID);
            editor.putBoolean("intro014Launched", mIntro014Launched);
            editor.putBoolean("migrationBD15done", mMigrationBD15done);
            editor.putBoolean("migrationToScopedStoragedone", mMigrationToScopedStoragedone);
            editor.apply();
        }
    
        private FontesPagerFragment getFontesPagerFragment() {
            if (mpFontesPagerFrag == null)
                mpFontesPagerFrag = (FontesPagerFragment) getSupportFragmentManager().findFragmentByTag(FONTESPAGER);
            if (mpFontesPagerFrag == null)
                mpFontesPagerFrag = FontesPagerFragment.newInstance(FONTESPAGER, 6);
    
            return mpFontesPagerFrag;
        }
    
        private WeightFragment getWeightFragment() {
            if (mpWeightFrag == null)
                mpWeightFrag = (WeightFragment) getSupportFragmentManager().findFragmentByTag(WEIGHT);
            if (mpWeightFrag == null) mpWeightFrag = WeightFragment.newInstance(WEIGHT, 5);
    
            return mpWeightFrag;
        }
    
        private ProfileFragment getProfileFragment() {
            if (mpProfileFrag == null)
                mpProfileFrag = (ProfileFragment) getSupportFragmentManager().findFragmentByTag(PROFILE);
            if (mpProfileFrag == null) mpProfileFrag = ProfileFragment.newInstance(PROFILE, 10);
    
            return mpProfileFrag;
        }
    
        private MachineFragment getMachineFragment() {
            if (mpMachineFrag == null)
                mpMachineFrag = (MachineFragment) getSupportFragmentManager().findFragmentByTag(MACHINES);
            if (mpMachineFrag == null) mpMachineFrag = MachineFragment.newInstance(MACHINES, 7);
            return mpMachineFrag;
        }
    
        private AboutFragment getAboutFragment() {
            if (mpAboutFrag == null)
                mpAboutFrag = (AboutFragment) getSupportFragmentManager().findFragmentByTag(ABOUT);
            if (mpAboutFrag == null) mpAboutFrag = AboutFragment.newInstance(ABOUT, 6);
    
            return mpAboutFrag;
        }
    
        private BodyPartListFragment getBodyPartFragment() {
            if (mpBodyPartListFrag == null)
                mpBodyPartListFrag = (BodyPartListFragment) getSupportFragmentManager().findFragmentByTag(BODYTRACKING);
            if (mpBodyPartListFrag == null)
                mpBodyPartListFrag = BodyPartListFragment.newInstance(BODYTRACKING, 9);
    
            return mpBodyPartListFrag;
        }
    
    
        private ProgramListFragment getWorkoutListFragment() {
            if (mpWorkoutListFrag == null)
                mpWorkoutListFrag = (ProgramListFragment) getSupportFragmentManager().findFragmentByTag(WORKOUTS);
            if (mpWorkoutListFrag == null)
                mpWorkoutListFrag = ProgramListFragment.newInstance(WORKOUTS, 10);
    
            return mpWorkoutListFrag;
        }
    
        private SettingsFragment getSettingsFragment() {
            if (mpSettingFrag == null)
                mpSettingFrag = (SettingsFragment) getSupportFragmentManager().findFragmentByTag(SETTINGS);
            if (mpSettingFrag == null) mpSettingFrag = SettingsFragment.newInstance(SETTINGS, 8);
    
            return mpSettingFrag;
        }
    
        public Toolbar getActivityToolbar() {
            return top_toolbar;
        }
    
        public void showMP3Toolbar(boolean show) {
            Toolbar mp3toolbar = this.findViewById(R.id.musicToolbar);
            if (!show) {
                mp3toolbar.setVisibility(View.GONE);
            } else {
                mp3toolbar.setVisibility(View.VISIBLE);
            }
        }
    
        @Override
        protected void onActivityResult(int requestCode, int resultCode, Intent data) {
            super.onActivityResult(requestCode, resultCode, data);
            if (requestCode == REQUEST_CODE_INTRO) {
                if (resultCode == RESULT_OK) {
                    initActivity();
                    mIntro014Launched = true;
                    initDEBUGdata();
                    this.savePreferences();
                } else {
                    // Cancelled the intro. You can then e.g. finish this activity too.
                    finish();
                }
            } else if (resultCode == RESULT_OK && requestCode == IMPORT_DATABASE) {
                Uri file;
                if (data != null) {
                    file = data.getData();
                    CVSManager cvsMan = new CVSManager(getActivity().getBaseContext());
                    InputStream inputStream;
                    try {
                        inputStream = getContentResolver().openInputStream(file);
                    } catch (FileNotFoundException e) {
                        e.printStackTrace();
                        inputStream = null;
                    }
    
                    if (cvsMan.importDatabase(inputStream, appViMo.getProfile().getValue())) {
                        KToast.successToast(getActivity(), getCurrentProfile().getName() + ": " + getActivity().getResources().getText(R.string.imported_successfully), Gravity.BOTTOM, KToast.LENGTH_LONG);
                    } else {
                        KToast.errorToast(getActivity(), getCurrentProfile().getName() + ": " + getActivity().getResources().getText(R.string.import_failed), Gravity.BOTTOM, KToast.LENGTH_LONG);
                    }
                }
            } else if (resultCode == RESULT_OK && requestCode == OPEN_MUSIC_FILE) {
                Uri uri;
                if (data != null) {
                    uri = data.getData();
                    // Return for MusicController Choose file
                    musicController.OpenMusicFileIntentResult(uri);
                    int takeFlags = data.getFlags();
                    takeFlags &= (Intent.FLAG_GRANT_READ_URI_PERMISSION
                            | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
                    // Check for the freshest data.
                    getContentResolver().takePersistableUriPermission(uri, takeFlags);
                }
            }
        }
    
        @Override
        public void onBackPressed() {
            int index = getActivity().getSupportFragmentManager().getBackStackEntryCount() - 1;
            if (index >= 0) { // Si on est dans une sous activité
                super.onBackPressed();
                getActivity().getSupportActionBar().show();
            } else { // Si on est la racine, avec il faut cliquer deux fois
                if (mBackPressed + TIME_INTERVAL > System.currentTimeMillis()) {
                    super.onBackPressed();
                    return;
                } else {
                    Toast.makeText(getBaseContext(), R.string.pressBackAgain, Toast.LENGTH_SHORT).show();
                }
    
                mBackPressed = System.currentTimeMillis();
            }
        }
    
        public void initActivity() {
            // Initialisation des objets DB
            mDbProfils = new DAOProfile(this.getApplicationContext());
    
            // Pour la base de donnee profil, il faut toujours qu'il y ai au moins un profil
            mCurrentProfile = mDbProfils.getProfile(mCurrentProfilID);
            if (mCurrentProfile == null) { // au cas ou il y aurait un probleme de synchro
                try {
                    List<Profile> lList = mDbProfils.getAllProfiles(mDbProfils.getReadableDatabase());
                    mCurrentProfile = lList.get(0);
                } catch (IndexOutOfBoundsException e) {
                    this.CreateNewProfile();
                }
            }
    
            if (mCurrentProfile != null) setCurrentProfile(mCurrentProfile.getName());
    
        }
    
        private class DrawerItemClickListener implements ListView.OnItemClickListener {
            @Override
            public void onItemClick(AdapterView parent, View view, int position, long id) {
    
                selectItem(position);
    
                // Insert the fragment by replacing any existing fragment
                switch (position) {
                    case 0:
                        showFragment(PROFILE);
                        setTitle(getString(R.string.ProfileLabel));
                        break;
                    case 1:
                        showFragment(FONTESPAGER);
                        setTitle(getResources().getText(R.string.menu_Workout));
                        break;
                    case 2:
                        showFragment(MACHINES);
                        setTitle(getResources().getText(R.string.MachinesLabel));
                        break;
                    case 3:
                        showFragment(WORKOUTS);
                        setTitle(getString(R.string.workout_list_menu_item));
                        break;
                    case 4:
                        showFragment(WEIGHT);
                        setTitle(getResources().getText(R.string.weightMenuLabel));
                        break;
                    case 5:
                        showFragment(BODYTRACKING);
                        setTitle(getResources().getText(R.string.bodytracking));
                        break;
                    case 6:
                        showFragment(SETTINGS);
                        setTitle(getResources().getText(R.string.SettingLabel));
                        break;
                    case 7:
                        showFragment(ABOUT);
                        setTitle(getResources().getText(R.string.AboutLabel));
                        break;
                    default:
                        showFragment(FONTESPAGER);
                        setTitle(getResources().getText(R.string.FonteLabel));
                }
            }
        }
    }

这是一个Android应用的主要活动（Activity）代码，它是一个健身跟踪应用的主界面。我将逐步解释这段代码的主要部分和功能：

1.  导入库和包：

package com.easyfitness;
    
    // 导入一些必要的Android库和自定义的类

1.  定义MainActivity类，它继承自AppCompatActivity类：

public class MainActivity extends AppCompatActivity {

1.  在类中声明各种成员变量，包括常量、UI元素、数据库操作对象等：

private static final int TIME_INTERVAL = 2000; // 两次返回键按下的时间间隔
    public static String FONTESPAGER = "FontePager";
    // ... 其他常量
    
    private FontesPagerFragment mpFontesPagerFrag = null;
    private WeightFragment mpWeightFrag = null;
    // ... 其他Fragment对象
    
    private DAOProfile mDbProfils = null;
    private Profile mCurrentProfile = null;
    private long mCurrentProfilID = -1;
    private Toolbar top_toolbar = null;
    // ... 其他UI元素和操作对象
    
    private final PopupMenu.OnMenuItemClickListener onMenuItemClick = item -> {
        
        switch (item.getItemId()) {
        
            // 处理弹出菜单项的点击事件
        }
    };

1.  实现`onCreate`方法，用于Activity的初始化操作：

@Override
    protected void onCreate(Bundle savedInstanceState) {
        
        // 从SharedPreferences获取设置，如夜间模式
        // ...
    
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main); // 设置布局
    
        loadPreferences(); // 加载应用程序设置
    
        top_toolbar = this.findViewById(R.id.actionToolbar);
        setSupportActionBar(top_toolbar); // 设置工具栏
    
        // 创建或恢复各个Fragment
        if (savedInstanceState == null) {
        
            // 如果没有保存的实例状态，创建新的Fragment
        } else {
        
            // 恢复已存在的Fragment
        }
    
        // 初始化ViewModel和观察Profile数据变化
        appViMo = new ViewModelProvider(this).get(AppViMo.class);
        appViMo.getProfile().observe(this, profile -> {
        
            // 更新UI以反映Profile的变化
        });
    
        // 重命名旧数据库（如果需要）
        DatabaseHelper.renameOldDatabase(this);
    
        // 数据库迁移操作（如果需要）
        // ...
    
        if (savedInstanceState == null) {
        
            showFragment(FONTESPAGER); // 显示FontesPagerFragment
            currentFragmentName = FONTESPAGER;
        }
    
        // 设置导航抽屉和菜单项
        // ...
        
        // 初始化音乐控制器（如果有的话）
        // ...
        
        // 检查是否已启动介绍界面
        if (!mIntro014Launched) {
        
            Intent intent = new Intent(this, MainIntroActivity.class);
            startActivityForResult(intent, REQUEST_CODE_INTRO);
        }
    }

1.  实现`onStart`方法，用于Activity的启动操作：

@Override
    protected void onStart() {
        
        super.onStart();
    
        // 初始化Activity和DEBUG数据（如果是DEBUG模式）
        // ...
    
        // 数据库迁移到Scoped存储（如果需要）
        // ...
    
        // 检查是否显示MP3工具栏（根据应用设置）
        // ...
    
        // 检查最后一次备份时间，并根据设置执行自动备份操作
        // ...
    }

1.  实现其他方法，用于处理各种操作，如数据库迁移、数据备份、菜单点击等。

这段代码的主要功能是创建一个健身跟踪应用的主界面，其中包括多个Fragment用于不同的功能模块，并支持导航抽屉、菜单操作、夜间模式切换等功能。这是一个较大的Android应用代码，包含了多个功能和操作，需要更多的上下文来理解其具体功能。如果有特定的问题或需要进一步了解特定部分的代码，请提出具体的问题。

//  
//  
//  
//  
//  
//

## 三.项目源码 ##

链接：https://pan.baidu.com/s/1nWmYs-h6mc3jAQY6UbjU7g  
提取码：1569

**创作不易，项目已加密，有偿（仅一杯奶茶钱…）**  
\+v15135757306

或者下面的微信名片联系我~

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