Android"寻龙点穴"指南针

- 日理万妓 2022-06-10 02:37 161阅读 0赞

![运行截图][SouthEast]

github代码:[https://github.com/XQXZ/android/tree/master/LightSensorTest][https_github.com_XQXZ_android_tree_master_LightSensorTest]  
**MainActivity.java**

package com.sdutacm.lightsensortest;
    
    import android.content.Context;
    import android.hardware.Sensor;
    import android.hardware.SensorEvent;
    import android.hardware.SensorEventListener;
    import android.hardware.SensorManager;
    import android.os.Bundle;
    import android.support.v7.app.AppCompatActivity;
    import android.util.Log;
    import android.view.animation.Animation;
    import android.view.animation.RotateAnimation;
    import android.widget.ImageView;
    import android.widget.TextView;
    
    public class MainActivity extends AppCompatActivity implements SensorEventListener{
        
    
        private SensorManager sensorManager;
        private Sensor magneticSensor,acclerometerSensor;
        private TextView lightLevel;
        float[] acclerometerValues = new float[3];
        float[] magneticFildValues = new float[3];
        private ImageView compassImg;
        private float lastRotateDegree;
        private TextView orientationtext;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            getSensorManager();
        }
    
        private void getSensorManager() {
            orientationtext = (TextView) findViewById(R.id.orientation);
            compassImg = (ImageView) findViewById(R.id.compass_img);
            sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
            magneticSensor = sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);
            acclerometerSensor = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
        }
    
        @Override
        protected void onResume() {
            super.onResume();
            if (sensorManager != null) {
                sensorManager.registerListener(this,magneticSensor,SensorManager.SENSOR_DELAY_GAME);
                sensorManager.registerListener(this,acclerometerSensor,SensorManager.SENSOR_DELAY_GAME);
    
            }
        }
    
        @Override
        protected void onPause() {
            super.onPause();
            if (sensorManager != null) {
                sensorManager.unregisterListener(this,magneticSensor);
                sensorManager.unregisterListener(this,acclerometerSensor);
    
            }
        }
    
    
        @Override
        public void onSensorChanged(SensorEvent event) {
            if(event.sensor.getType() == Sensor.TYPE_ACCELEROMETER){
                acclerometerValues = event.values.clone();
            }else if (event.sensor.getType() == Sensor.TYPE_MAGNETIC_FIELD){
                magneticFildValues = event.values.clone();
            }
            float[] R = new float[9];
            float[] values = new float[3];
    
            SensorManager.getRotationMatrix(R,null,acclerometerValues,magneticFildValues);
            sensorManager.getOrientation(R,values);
            float rotateDegree = -(float) Math.toDegrees(values[0]);
            if(Math.abs(rotateDegree - lastRotateDegree)>1){
                RotateAnimation animation = new RotateAnimation(lastRotateDegree,rotateDegree, Animation.RELATIVE_TO_SELF,0.5f,Animation.RELATIVE_TO_SELF,0.5f);
                animation.setFillAfter(true);
                compassImg.startAnimation(animation);
                lastRotateDegree = rotateDegree;
                compassImg.startAnimation(animation);
                lastRotateDegree = rotateDegree;
                float orientationNum = 180;
                orientationNum+=(int) lastRotateDegree;
                StringBuffer buffer = new StringBuffer();
                boolean inferContent = false;
                if(orientationNum >=67.5 && orientationNum <112.5){
                    buffer.append("东");
                    if((int)orientationNum>=83 && (int)orientationNum>=93){
                        buffer.append("\n寻龙分金看缠山，一重缠是一重关\n少侠,此处风水俱佳!必有重宝!!!");
                        inferContent  = true;
                    }
                }else if(orientationNum >=22.5 && orientationNum <67.5) {
                    buffer.append("东北");
                    if((int)orientationNum>=42 && (int)orientationNum<=48){
                        buffer.append("\n关门若有千重锁，定有王侯居此间\n少侠,此处必有重宝!!!");
                        inferContent  = true;
                    }
                }else if(orientationNum >=337.5 && orientationNum <22.5) {
                    buffer.append("北");
                    if((int)orientationNum>=3 && (int)orientationNum<=357){
                        buffer.append("\n关门如有八重险，不出阴阳八卦形\n少侠,此处风水俱佳!必有重宝!!!");
                        inferContent  = true;
                    }
                }else if(orientationNum >=292.5 && orientationNum <337.5) {
                    buffer.append("西北");
                    if((int)orientationNum>=312 && (int)orientationNum <=318){
                        buffer.append("\n摸金校尉，合择生，分择死\n少侠,请保持和你队友的联系!!!");
                        inferContent  = true;
                    }
                }else if(orientationNum >=247.5 && orientationNum <292.5) {
                    buffer.append("西");
                    if((int)orientationNum>=267 && (int)orientationNum <= 273){
                        buffer.append("\n摸金校尉，合择生，分择死\n少侠,请保持和你队友的联系!!!");
                        inferContent  = true;
                    }
    
                }else if(orientationNum >=202.5 && orientationNum <247.5) {
                    buffer.append("西南");
                    if((int)orientationNum>=222 && (int)orientationNum<=228) {
                        buffer.append("\n鸡鸣灯灭不摸金\n少侠,快撤,有粽子!!!");
                        inferContent  = true;
                    }
                }else if(orientationNum >=157.5 && orientationNum <202.5) {
                    buffer.append("南");
                    if((int)orientationNum>=177 && (int)orientationNum <=183) {
                        buffer.append("\n 天下第一奇书——风水残卷《十六字阴阳风水秘术》\n少侠,只有十块钱,十块钱你买不到吃亏,买不到上当!!!");
                        inferContent  = true;
                    }
    
                }else {
                    buffer.append("东南");
                    if((int)orientationNum>=132 && (int)orientationNum<=138) {
                        buffer.append("\n世界上比鬼神可怕的是人心!\n少侠,我发现一个惊天的秘密,,,,你是世界上最帅的人!!!");
                        inferContent  = true;
                    }
                }
                if( inferContent){
                    orientationtext.setText((int)orientationNum+"\n"+buffer);
                }else {
                    orientationtext.setText(buffer+"\n"+(int)orientationNum);
                }
    
    
                /**
                 * 90-22.5 90+22.5 67.5  112.5  东
                 * 45-22.5 45+22.5 22.5  67.5   东北
                 * 360-22.5        337.5 22.5   北
                 *                 337.5 292.5  西北
                 *                 292.5 247.5 西
                 *                 247.5 202.5 西南
                 *                 202.5 157.5 南
                 *                 157.5 112.5 东南
                 */
            }
            Log.d("MainActivity","values[0] is "+Math.toDegrees(values[0]));
        }
    
        @Override
        public void onAccuracyChanged(Sensor sensor, int accuracy) {
    
        }
    }

**activity\_main.xml**

<?xml version="1.0" encoding="utf-8"?>
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context="com.sdutacm.lightsensortest.MainActivity"
        android:background="#000"
        >
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/orientation"
        android:layout_centerHorizontal="true"
        android:textSize="25sp"
        android:textColor="#fff"
        android:gravity="center"
        />
        <ImageView
            android:id="@+id/compass_img"
            android:layout_width="250dp"
            android:layout_height="250dp"
            android:layout_centerInParent="true"
            android:src="@drawable/compass" />
    
        <ImageView
            android:id="@+id/arrow_img"
            android:layout_width="60dp"
            android:layout_height="110dp"
            android:layout_centerInParent="true"
            android:src="@drawable/arrow" />
    
    </RelativeLayout>

[SouthEast]: /images/20220610/4d13af4a3341481794764b0c24b60490.png
[https_github.com_XQXZ_android_tree_master_LightSensorTest]: https://github.com/XQXZ/android/tree/master/LightSensorTest