设置全屏： activity中

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requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
                   

加载位图：

Bitmap map = BitmapFactory.decodeResource(getResources(), R.drawable.chessboard);

实例：

public class GameActivity extends Activity {
    public class MyView extends View
    {
        public MyView(Context context) {
            super(context);
        }
        protected void onDraw(Canvas canvas) {
            super.onDraw(canvas);
            Bitmap map = BitmapFactory.decodeResource(getResources(), R.drawable.chessboard);
            int width = canvas.getWidth();
            int height = canvas.getHeight();
            Paint paint = new Paint();
            paint.setColor(Color.RED);
            canvas.drawLine(0, 0, width - 1, height - 1, paint);
            Rect rect1 = new Rect(0, 0, canvas.getWidth(), canvas.getHeight());
            Rect rect2 = new Rect(0, 0, map.getWidth() / 2, map.getHeight() / 2);
            canvas.drawBitmap(map, rect2, rect1, null);
            invalidate();
        }
    }
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //设置全屏
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
          
//      setContentView(R.layout.activity_game);
        setContentView(new MyView(this));
    }

文章标题：Android设置全屏，画图，加载位图
文章出自：http://kswjz.com/article/pdesop.html