摇一摇&重力传感器 对三个方向的加速度进行测量并实时绘制图像(程序源码).rar

package com.panxuesen.gravity2; import android.app.Activity; import android.content.Context; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.hardware.Sensor; import android.hardware.SensorEvent; import android.hardware.SensorEventListener; import android.hardware.SensorManager; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.view.View; import android.widget.Button; import android.widget.FrameLayout; import android.widget.Toast; public class MainActivity extends Activity implements SensorEventListener { // 定义系统的Sensor管理器 SensorManager sensorManager; private Button button1,button2,button3,button4; private FrameLayout frame1,frame2,frame3; private float[] values; private int coordinatex=0,coordinatey,tempx=0,tempy=0,tempy2=0,tempy3=0; private int coordinatey2; private int coordinatey3; private int canvaswidth,canvasheight; private boolean isInterrupt=true; private int enlargeMultiple=10; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // 获取系统的传感器管理服务 sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE); frame1 = (FrameLayout) findViewById(R.id.mainFrameLayout1); frame2 = (FrameLayout) findViewById(R.id.mainFrameLayout2); frame3 = (FrameLayout) findViewById(R.id.mainFrameLayout3); button1 = (Button) findViewById(R.id.forwardButton); button1.setOnClickListener(listener); button2 = (Button) findViewById(R.id.backButton); button2.setOnClickListener(listener); button3 = (Button) findViewById(R.id.enlargeButton); button3.setOnClickListener(listener); button4 = (Button) findViewById(R.id.reduceButton); button4.setOnClickListener(listener); canvaswidth = this.getResources().getDisplayMetrics().widthPixels; canvasheight = (this.getResources().getDisplayMetrics().heightPixels - 80) / 3; DrawBack my2 = new DrawBack(MainActivity.this); frame1.addView(my2); my2 = null; my2 = new DrawBack(MainActivity.this); frame2.addView(my2); my2 = null; my2 = new DrawBack(MainActivity.this); frame3.addView(my2); my2 = null; //Toast.makeText(MainActivity.this,""+my.getHeight(),Toast.LENGTH_LONG).show(); } private View.OnClickListener listener=new View.OnClickListener(){ @Override public void onClick(View p1) { // TODO: Implement this method Button button=(Button)p1; switch (button.getId()) { case R.id.forwardButton: beginDraw1(); break; case R.id.backButton: if(thread!=null) { thread.interrupt(); thread = null; isInterrupt = true; } break; case R.id.enlargeButton: enlargeMultiple++; Toast.makeText(MainActivity.this, "放大倍数为" + enlargeMultiple, Toast.LENGTH_SHORT).show(); break; case R.id.reduceButton: enlargeMultiple--; if (enlargeMultiple < 1) enlargeMultiple = 1; Toast.makeText(MainActivity.this, "放大倍数为" + enlargeMultiple, Toast.LENGTH_SHORT).show(); break; } } }; private class MyView1 extends View { private Paint paint; private int x1,x2,y1,y2; public MyView1(Context context) { super(context); } public void setParameter(int x1, int y1, int x2, int y2) { this.x1 = x1;this.x2 = x2; this.y1 = y1;this.y2 = y2; } @Override protected void onDraw(Canvas canvas) { // TODO: Implement this method super.onDraw(canvas); paint = new Paint(); paint.setColor(Color.BLUE); paint.setAntiAlias(true); paint.setStrokeWidth(3); paint.setStyle(android.graphics.Paint.Style.FILL); canvas.drawLine((float)x1, (float)y1, (float)x2, (float)y2, paint); } } private class DrawBack extends View { private Paint paint; public DrawBack(Context context) { super(context); } @Override protected void onDraw(Canvas canvas) { // TODO: Implement this method super.onDraw(canvas); paint = new Paint(); paint.setColor(Color.BLACK); paint.setAntiAlias(true); paint.setStrokeWidth(3); paint.setStyle(android.graphics.Paint.Style.FILL); canvas.drawColor(Color.WHITE); canvas.drawLine(0, canvasheight / 2, canvaswidth, canvasheight / 2, paint); //canvaswidth = canvas.getWidth(); //canvasheight = canvas.getHeight(); } } private Thread thread=null; private void beginDraw1() { thread = new Thread(new Runnable(){ @Override public void run() { while (!isInterrupt) { // TODO: Implement this method if (coordinatex > canvaswidth) { coordinatex = 0; tempx = 0; Message m=new Message(); m.what = 0x111; handler.sendMessage(m); } else { if (tempx == 0) { tempy = coordinatey; tempy2 = coordinatey2; tempy3 = coordinatey3; } coordinatey = (int)(canvasheight / 2 - values[0] * enlargeMultiple); coordinatey2 = (int)(canvasheight / 2 - values[1] * enlargeMultiple); coordinatey3 = (int)(canvasheight / 2 - values[2] * enlargeMultiple); Message m=new Message(); int data[]=new int[]{tempx,tempy,coordinatex,coordinatey,tempy2,tempy3,coordinatey2,coordinatey3}; m.obj = data; m.what = 0x101; handler.sendMessage(m); tempx = coordinatex;tempy = coordinatey; tempy2 = coordinatey2;tempy3 = coordinatey3; coordinatex += 5; } try { thread.sleep(50); } catch (InterruptedException e) {} } } }); //my2 = null; if (isInterrupt) { thread.start(); isInterrupt = false; } } private Handler handler = new Handler(){ @Override public void handleMessage(Message msg) { // TODO: Implement this method super.handleMessage(msg); if (msg.what == 0x101) { int []data; data = (int[]) msg.obj; //my = null; MyView1 my = new MyView1(MainActivity.this); my.setParameter(data[0], data[1], data[2], data[3]); //my.setParameter(tempx, tempy, coordinatex, coordinatey); frame1.addView(my); my = null; my = new MyView1(MainActivity.this); my.setParameter(data[0], data[4], data[2], data[6]); //my.setParameter(tempx, tempy2, coordinatex, coordinatey2); frame2.addView(my); my = null; my = new MyView1(MainActivity.this); my.setParameter(data[0], data[5], data[2], data[7]); //my.setParametr(tempx, tempy3, coordinatex, coordinatey3); frame3.addView(my); my = null; //my.invalidate();//重绘 } else { //my2 = null; DrawBack my2 = new DrawBack(MainActivity.this); frame1.addView(my2); my2 = null; my2 = new DrawBack(MainActivity.this); frame2.addView(my2); my2 = null; my2 = new DrawBack(MainActivity.this); frame3.addView(my2); my2 = null; //my2.invalidate(); } } }; @Override public void onSensorChanged(SensorEvent event) { // TODO: Implement this method values = event.values; // StringBuilder sb = new StringBuilder(); // sb.append("X方向上的加速度："); // sb.append(values[0]); // sb.append("\nY方向上的加速度："); // sb.append(values[1]); // sb.append("\nZ方向上的加速度："); // sb.append(values[2]); } @Override public void onAccuracyChanged(Sensor p1, int p2) { // TODO: Implement this method } @Override protected void onResume() { // TODO: Implement this method super.onResume(); // 为系统的加速度传感器注册监听器 sensorManager.registerListener