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我在看ScaleGestureDetector类。 http://developer.android.com/reference/android/view/ScaleGestureDetector.htmlAndroid Touchevent - 捏手势
我有两种方法，Zoom-In and ZoomOut。我应该采用哪种方法来调用这两种方法。
private class ScaleListener extends ScaleGestureDetector.SimpleOnScaleGestureListener {@
Override
public boolean onScale(ScaleGestureDetector detector) {
return true;
}
Override
public boolean onScaleBegin(ScaleGestureDetector detector) {
return true;
}
Override
public boolean onScaleEnd(ScaleGestureDetector detector) {
}
}
让我做一个捏起来的走，我想打电话给Zoom-In和捏下来，我想打电话给Zoom-out。