Android远程视频传输样例源码

package bb.baibin; import java.io.InputStream; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; import android.view.SurfaceHolder.Callback; import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.animation.Animation; public class MySurfaceView extends SurfaceView implements Callback, Runnable{// 备注1 private SurfaceHolder sfh; private Thread th; private Canvas canvas; private Paint paint; private int ScreenW, ScreenH; URL videoUrl; HttpURLConnection conn; Bitmap bmp; public MySurfaceView(Context context) { super(context); th = new Thread(this); sfh = this.getHolder(); sfh.addCallback(this); paint = new Paint(); paint.setAntiAlias(true); paint.setColor(Color.RED); this.setKeepScreenOn(true);// 保持屏幕常亮 } @Override public void startAnimation(Animation animation) { super.startAnimation(animation); } public void surfaceCreated(SurfaceHolder holder) { ScreenW = this.getWidth();// 备注2 ScreenH = this.getHeight(); th.start(); } private void draw() { try { InputStream inputstream; inputstream = null; videoUrl=new URL("http://hiphotos.baidu.com/2008en/pic/item/6be08560938e11f88cb10d44.jpg"); conn = (HttpURLConnection)videoUrl.openConnection(); conn.setDoInput(true); conn.connect(); inputstream = conn.getInputStream(); bmp = BitmapFactory.decodeStream(inputstream); canvas = sfh.lockCanvas(); // 得到一个canvas实例 canvas.drawColor(Color.WHITE);// 刷屏 canvas.drawBitmap(bmp, 100, 100, paint);// 画 sfh.unlockCanvasAndPost(canvas); // 将画好的画布提交 } catch (Exception ex) { } finally { // 备注3 if (canvas != null) sfh.unlockCanvasAndPost(canvas); } } public void run() { while (true) { draw(); } } public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { } public void surfaceDestroyed(SurfaceHolder holder) { // TODO Auto-generated method stub } }