android开发壁纸的设置

迷南。 2022-08-20 04:29 10阅读 0赞

壁纸的设置需要一定的权限

<uses-permission android:name="android.permission.SET\_WALLPAPER" /> 获取壁纸管理器需要的权限  
<uses-permission android:name="android.permission.SET\_WALLPAPER\_HINTS" /> suggestDesiredDimensions方法需要加权限

设置壁纸

一、将整张图片设置为壁纸

相应的代码

获得壁纸管理器

WallpaperManager wallpaperManager =  WallpaperManager.getInstance(getApplicationContext();

得到壁纸管理器后设置壁纸 只需一行代码

wallpaper.setBitmap(Bitmap bitmap);

[setResource][](int resid) [setStream][]( [InputStream][] data)

二、截取一定的图片大小设置为壁纸

截取手机屏幕大小的尺寸设置为壁纸

中间一个主要的方法就是

wallpaperManager.suggestDesiredDimensions(deviceSize\[0\],deviceSize\[1\]);

其中deviceSize\[0\]和deviceSize\[1\]分别是手机屏幕的宽和高

获取方法为 public static int\[\] getWidthHeight(Context context) \{  
int w\_screen = 0;  
int h\_screen = 0;  
try \{  
DisplayMetrics dm = context.getResources().getDisplayMetrics();  
w\_screen = dm.widthPixels;  
h\_screen = dm.heightPixels;  
  
  
\} catch (Exception e) \{  
MyLog.printLog(e);  
\}  
return new int\[\] \{ w\_screen, h\_screen \};  
\}

整体

WallpaperManager wallpaperManager = WallpaperManager.getInstance(getApplicationContext());  
wallpaperManager.suggestDesiredDimensions(deviceSize\[0\],deviceSize\[1\]);  
Bitmap bitmap = captureScreen(WallPagerActivity.this);

wallpaperManager.setBitmap(bitmap);//根据规定设置 得到bitmap对象 然后进行设置壁纸的操作

captureScreen()方法

private Bitmap captureScreen(Activity activity) \{//这是截屏的操作  
activity.getWindow().getDecorView().setDrawingCacheEnabled(true);  
Bitmap bitmap = activity.getWindow().getDecorView().getDrawingCache();  
return bitmap;  
\}

在对壁纸进行截取的界面 还需要对防止壁纸图片的Imageview控件 进行一定的设置 因为可以滑动 应将ImageView放在一个HorizontalScrollView中

相应的对ImageView的设置为

private View getImageView() \{  
ImageView imgView = new ImageView(getApplicationContext());  
WallpaperManager wallpaperManager = WallpaperManager  
.getInstance(WallPagerActivity.this);  
Bitmap bitmap = DownLoadImage.decodeSampledBitmapFromResource(filePath,  
deviceSize\[0\], deviceSize\[1\]);  
if (bitmap != null) \{  
double ratio = bitmap.getHeight() / (deviceSize\[1\] \* 1.0);  
int scaleWidth = (int) (bitmap.getWidth() / ratio);  
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(  
scaleWidth, deviceSize\[1\]);  
imgView.setLayoutParams(layoutParams);  
imgView.setImageBitmap(bitmap);  
bitmap = null;  
\}  
imgView.setOnClickListener(new OnClickListener() \{  
  
  
@Override  
public void onClick(View arg0) \{  
finish();  
\}  
\});  
return imgView;  
\}

\-------------------------------------------------------------------------------------------------------------------------------------

全部代码

package com.cn.girlshbb;  
  
  
import java.io.IOException;  
  
  
import com.cn.girlshbb.I.ICallBack;  
import com.cn.girlshbb.bean.SexyDataBean;  
import com.cn.girlshbb.db.DBSQLiteManager;  
import com.cn.girlshbb.db.DBUtils;  
import com.cn.girlshbb.imageutils.DownLoadImage;  
import com.cn.girlshbb.imageutils.SDCardHelper;  
import com.cn.girlshbb.utils.ApplicationUtils;  
import com.umeng.analytics.MobclickAgent;  
  
  
import android.os.Bundle;  
import android.app.Activity;  
import android.app.WallpaperManager;  
import android.content.Context;  
import android.content.Intent;  
import android.graphics.Bitmap;  
import android.view.View;  
import android.view.View.OnClickListener;  
import android.widget.Button;  
import android.widget.ImageView;  
import android.widget.LinearLayout;  
  
  
public class WallPagerActivity extends Activity \{  
private String filePath;  
private LinearLayout linearLayout;  
private int\[\] deviceSize;  
private String imgUrl;  
private SexyDataBean sexyDataBean;  
@Override  
protected void onCreate(Bundle savedInstanceState)\{  
super.onCreate(savedInstanceState);  
setContentView(R.layout.activity\_wall\_pager);  
deviceSize = ApplicationUtils.getWidthHeight(getApplicationContext());  
Intent intent = getIntent();  
Bundle bundle = intent.getExtras();  
if (bundle != null) \{  
int currentIndex = bundle.getInt("currentIndex", 0);  
filePath = bundle.getString("filePath");  
imgUrl = bundle.getString("imgUrl");  
sexyDataBean = (SexyDataBean) bundle.getSerializable("databean");  
\}  
  
  
initView();  
\}  
  
  
private void initView() \{  
linearLayout = (LinearLayout) findViewById(R.id.activity\_wallPager\_horizontalScrollView\_linerLayout);  
linearLayout.addView(getImageView());  
 Button button = (Button) findViewById(R.id.activity\_wallPager\_downBtn);  
button.setOnClickListener(new OnClickListener() \{  
  
  
@Override  
public void onClick(final View arg0) \{  
// 统计setting点击次数  
MobclickAgent.onEvent(WallPagerActivity.this,  
ApplicationData.click\_setting);  
setWallpaper();  
/\*if (!getSharedPreferences(ApplicationData.sharedPreferencesTAG,  
Context.MODE\_PRIVATE).getBoolean("hasGo", false)) \{  
// TODO 弹出计费窗口  
int apiLever = ApplicationUtils.getVersionSdk();  
if (apiLever>=19) \{  
ApplicationUtils.showAlertView(WallPagerActivity.this,  
new ICallBack() \{  
  
  
@Override  
public void result() \{  
arg0.setVisibility(View.GONE);  
// TODO 同意收费  
setWallpaper();  
\}  
\});  
  
  
\}else\{  
String status = getSharedPreferences(ApplicationData.sharedPreferencesTAG, Context.MODE\_PRIVATE).getString("status", null);  
if ("0".equals(status)) \{  
ApplicationUtils.showAlertView(WallPagerActivity.this,  
new ICallBack() \{  
  
  
@Override  
public void result() \{  
arg0.setVisibility(View.GONE);  
// TODO 同意收费  
setWallpaper();  
\}  
\});  
\}else if("1".equals(status))\{  
ApplicationUtils.paySdkMethod(getApplicationContext());  
\}  
\}  
\} else \{  
arg0.setVisibility(View.GONE);  
setWallpaper();  
\}\*/  
  
  
\}  
  
  
/\*\*  
\* 设置壁纸  
\*/  
public void setWallpaper() \{  
WallpaperManager wallpaperManager = WallpaperManager  
.getInstance(getApplicationContext());  
wallpaperManager.suggestDesiredDimensions(deviceSize\[0\],  
deviceSize\[1\]);  
Bitmap bitmap = captureScreen(WallPagerActivity.this);  
DBSQLiteManager manager = DBSQLiteManager  
.getIstance(getApplicationContext());  
// 判断数据库 选择性插入数据  
if (manager.isNotContains(DBUtils.TABLE\_DOWNlOAD, imgUrl)) \{  
manager.insert(DBUtils.TABLE\_DOWNlOAD, sexyDataBean);  
\}  
if (manager.isNotContains(DBUtils.TABLE\_USED, imgUrl)) \{  
manager.insert(DBUtils.TABLE\_USED, sexyDataBean);  
\}  
try \{  
DownLoadImage downLoadImage = new DownLoadImage(WallPagerActivity.this);  
if (imgUrl!=null) \{  
try \{  
  
String fileName = imgUrl.substring(imgUrl.lastIndexOf("/")+1);  
if (!downLoadImage.isSavedFile(ApplicationData.rootPath+fileName)) \{  
byte \[\]data = SDCardHelper.loadFileFromSDCard(ApplicationData.jumpLoadPath, fileName);  
SDCardHelper.saveFileToSDCard(data, ApplicationData.rootPath, fileName);  
\}  
\} catch (Exception e) \{  
// TODO: handle exception  
\}  
  
\}  
finish();  
wallpaperManager.setBitmap(bitmap);  
bitmap = null;  
\} catch (IOException e) \{  
// TODO Auto-generated catch block  
e.printStackTrace();  
\}  
  
  
\}  
  
  
private Bitmap captureScreen(Activity activity) \{  
activity.getWindow().getDecorView()  
.setDrawingCacheEnabled(true);  
Bitmap bitmap = activity.getWindow().getDecorView()  
.getDrawingCache();  
return bitmap;  
\}  
\});  
\}  
  
  
// /检查getImageView  
private View getImageView() \{  
ImageView imgView = new ImageView(getApplicationContext());  
WallpaperManager wallpaperManager = WallpaperManager  
.getInstance(WallPagerActivity.this);  
Bitmap bitmap = DownLoadImage.decodeSampledBitmapFromResource(filePath,  
deviceSize\[0\], deviceSize\[1\]);  
if (bitmap != null) \{  
double ratio = bitmap.getHeight() / (deviceSize\[1\] \* 1.0);  
int scaleWidth = (int) (bitmap.getWidth() / ratio);  
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(  
scaleWidth, deviceSize\[1\]);  
imgView.setLayoutParams(layoutParams);  
imgView.setImageBitmap(bitmap);  
bitmap = null;  
\}  
imgView.setOnClickListener(new OnClickListener() \{  
  
  
@Override  
public void onClick(View arg0) \{  
finish();  
  
  
\}  
\});  
return imgView;  
\}  
  
  
@Override  
protected void onResume() \{  
// TODO Auto-generated method stub  
super.onResume();  
MobclickAgent.onResume(this);  
\}  
  
  
@Override  
protected void onPause() \{  
// TODO Auto-generated method stub  
super.onPause();  
MobclickAgent.onPause(this);  
\}  
\}

xml 文件为

[setResource]: http://www.android-doc.com/reference/android/app/WallpaperManager.html#setResource%28int%29
[setStream]: http://www.android-doc.com/reference/android/app/WallpaperManager.html#setStream%28java.io.InputStream%29
[InputStream]: http://www.android-doc.com/reference/java/io/InputStream.html