comoc

// Obtain a SurfaceView.
// SurfaceView surfaceView = (SurfaceView)findViewById(R.id.surfaceView1);
Canvas canvas = surfaceView.getHolder().lockCanvas();
canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR);

// Draw someting

surfaceView.getHolder().unlockCanvasAndPost(canvas);

granoeste

System directories

Method	Result
Environment.getDataDirectory()	/data
Environment.getDownloadCacheDirectory()	/cache
Environment.getRootDirectory()	/system

External storage directories