如何使用Android的地图用手势进行放大(iphone等)
题
你如何使用Android API来放大和缩小与2个手指手势喜欢iPhone的地图?
其他提示
您需要像这样覆盖MapActivity的的onTouchEvent():
@Override
public boolean onTouchEvent(final MotionEvent event)
{
if(event.getPointerCount() > 1)
{
int x1 = event.getX(0);
int y1 = event.getY(0);
int x2 = event.getX(1);
int y2 = event.getY(1);
// Get the distance and see how it compares to the previous
// distance between these two pointers
}
return true;
}
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