如何将drawBitmap设置为非全屏

Question

我有一张位图，我画成这样：

bit = BitmapFactory.decodeResource(getResources(),
                   R.drawable.anim_ctrl_panel);
Paint paint = new Paint();
canvas.drawBitmap(bit, 80, 440, paint);

问题是图像设置为全屏。在onTouchEvent 方法中，我为位图实现了事件，并且在我选择屏幕的任何地方都实现了该事件。我希望图像具有一定的位置，并且仅用于该位置来实现事件。我该怎么做？

编辑：问题出在 onTouchEvent 方法上。这是解决方案：

public boolean onTouchEvent(MotionEvent event) {if(80 <= event.getX() && event.getX()<= (80+bit.getWidth()/2) && (440 <= event.getY() && (event.getY() <= 440+bit.getHeight()))){   
            //...
        }else if((80+bit.getWidth()/2) <= event.getX() && event.getX()<= (80+bit.getWidth()) && (440 <= event.getY() && (event.getY() <= 440+bit.getHeight()))){
            //...
            }

帮帮我：How can I check the Image is Touched using OnTouch()

Answer 1

对于特定区域的图像集，我认为矩形对此很有用，

类似这样的东西，（在我的情况下它对我有用）

Canvas canvas = new Canvas(bitmap);
final Paint paint = new Paint();         
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());         
paint.setAntiAlias(true);         
canvas.drawARGB(0, 0, 0, 0);         
canvas.drawBitmap(bitmap, rect, rect, paint);

试试看。

更多信息请查看Android - Drawing (Core)

谢谢。

Answer 2

试试这个：

canvas.save();
canvas.translate(posX, posY);
canvas.drawBitmap(bit, 0f, 0f, paint);
canvas.restore();