Android手势滑动实现
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2022-06-21 23:46:39
详细的博客介绍: https://www.gcssloop.com/customview/gestruedector左滑,右滑,上划,下滑的实现总结:1.实现接口android.view.GestureDetector.OnGestureListener;2.onTouchEvent返回gestureDetector.onTouchEvent(event);3.重载实现onFling方法,判断x和y位移,以及速度;@Override public boo......
详细的博客介绍:
https://www.gcssloop.com/customview/gestruedector
左滑,右滑,上划,下滑的实现总结:
1.实现接口android.view.GestureDetector.OnGestureListener;
2.onTouchEvent返回gestureDetector.onTouchEvent(event);
3.重载实现onFling方法,判断x和y位移,以及速度;
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
float minMoveDistance = 60;
float minVelocity = 0;
float beginX = e1.getX();
float endX = e2.getX();
float beginY = e1.getY();
float endY = e2.getY();
if(Math.abs(beginX-endX) > minMoveDistance || Math.abs(beginY-endY) > minMoveDistance)
{
mv.tilt = false;
mv.zoom = false;
mv.shift = true;
}
if(beginX-endX > minMoveDistance && Math.abs(velocityX) > minVelocity)
{
//左滑
swipeLeft = true;
mv.displacementX -= beginX-endX;
mv.postInvalidate();
}else if(endX-beginX >minMoveDistance && Math.abs(velocityX)>minVelocity)
{
//右滑
swipeRight = true;
mv.displacementX += endX-beginX;
mv.postInvalidate();
}else if(beginY-endY > minMoveDistance && Math.abs(velocityY) > minVelocity)
{
//上划
swipeUp = true;
mv.displacementY -= beginY-endY;
mv.postInvalidate();
}else if(endY-beginY >minMoveDistance && Math.abs(velocityY)>minVelocity)
{
//下划
swipeDown = true;
mv.displacementY += endY-beginY;
mv.postInvalidate();
}
return false;
}
本文地址:https://blog.csdn.net/John_chaos/article/details/107598699