故障与重叠窗口

我正在写一个Android应用程序，模拟鼠标。我用代码pocketmagic.com游标覆盖而在我的Droid Maxx的（4.4.4），它的工作原理但在Minix的NEO X5微型（4.4.2）（机顶盒）不下面的代码故障与重叠窗口

mView = new OverlayView(this); 
    WindowManager.LayoutParams params = new WindowManager.LayoutParams(
      WindowManager.LayoutParams.WRAP_CONTENT, 
      WindowManager.LayoutParams.WRAP_CONTENT, 
      WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY,//TYPE_SYSTEM_ALERT,//TYPE_SYSTEM_OVERLAY, 
      WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE | 
        WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN, //will cover status bar as well!!! 
      PixelFormat.TRANSLUCENT); 
    params.gravity = Gravity.LEFT | Gravity.TOP; 
    params.setTitle("Cursor"); 
    WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE); 
    wm.addView(mView, params);

而且

class OverlayView extends ViewGroup { 
private Paint mLoadPaint; 
boolean mShowCursor; 

Bitmap cursor; 
public int x = 0,y = 0; 

public void Update(int nx, int ny) { 
    x = nx; y = ny; 
} 
public void ShowCursor(boolean status) { 
    mShowCursor = status; 
} 
public boolean isCursorShown() { 
    return mShowCursor; 
} 

public OverlayView(Context context) { 
    super(context); 
    cursor = BitmapFactory.decodeResource(context.getResources(), R.drawable.ic_cursor); 

    mLoadPaint = new Paint(); 
    mLoadPaint.setAntiAlias(true); 
    mLoadPaint.setTextSize(10); 
    mLoadPaint.setARGB(255, 255, 0, 0); 
} 

@Override 
protected void onDraw(Canvas canvas) { 
    super.onDraw(canvas); 
    //canvas.drawText("Hello World", 0, 0, mLoadPaint); 
    if (mShowCursor) canvas.drawBitmap(cursor,x,y,null); 
} 

@Override 
protected void onLayout(boolean arg0, int arg1, int arg2, int arg3, int arg4) { 
} 

@Override 
public boolean onTouchEvent(MotionEvent event) { 
    return true; 
}

}

来源

2016-01-21 Dima Rostopira

发现这是**实际工作**，但只有在屏幕的左侧部分（0-855像素）也是“显示屏幕重绘”在开发中选项强制屏幕部分比右边部分更频繁地闪烁。屏幕分辨率为1920×1080 –