Android应用中利用SurfaceView截屏时出现黑屏如何解决-创新互联
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1、首先看我们一般是怎么用SurfaceView的
public class SuperSurfaceView extends SurfaceView implements SurfaceHolder.Callback {
SurfaceHolder surfaceHolder;
public SuperSurfaceView(Context context) {
super(context);
surfaceHolder = this.getHolder();
surfaceHolder.addCallback(this);
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
new Thread(new MyThread()).start();
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
}
class MyThread implements Runnable {
@Override
public void run() {
Canvas canvas = surfaceHolder.lockCanvas(null);//获取画布
Paint mPaint = new Paint();
mPaint.setColor(Color.BLUE);
canvas.drawRect(new RectF(100, 100, 1000, 550), mPaint);
surfaceHolder.unlockCanvasAndPost(canvas);//解锁画布,提交画好的图像
}
}
} 文章标题:Android应用中利用SurfaceView截屏时出现黑屏如何解决-创新互联
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