我正在尝试进行滑动活动，但没有这样做。下面将是我的代码，但它什么也不做，甚至没有给出任何错误。我不知道该怎么办。
final View lay_first=(View) findViewById(R.id.lay_first);
lay_first.setOnTouchListener(new OnSwipeTouchListener(){
@Override
public boolean onSwipeLeft() {
Intent intent=new Intent(SlideWindow.this,MainActivity.class);
startActivity(intent);
overridePendingTransition(R.anim.right_to_left, R.anim.rl2);
return true;
}
@Override
public boolean onSwipeRight() {
Intent intent=new Intent(SlideWindow.this,MainActivity.class);
startActivity(intent);
overridePendingTransition(R.anim.right_to_left, R.anim.rl2);
return true;
}
@Override
public boolean onSwipeBottom() {
super.onSwipeBottom();
return true;
}
@Override
public boolean onSwipeTop() {
super.onSwipeTop();
return true;
}
});
}
public class OnSwipeTouchListener implements OnTouchListener{
@SuppressWarnings("deprecation")
GestureDetector gestureDetector=new GestureDetector(new GestureListener());
@Override
public boolean onTouch(View v, MotionEvent event) {
if(gestureDetector.onTouchEvent(event))
{
return true;
}
return false;
}
private final class GestureListener extends SimpleOnGestureListener{
private static final int SWIPE_THRESHOLD = 100;
private static final int SWIPE_VELOCITY_THRESHOLD = 100;
@Override
public boolean onDown(MotionEvent e) {
return super.onDown(e);
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2,
float velocityX, float velocityY) {
boolean result=false;
try
{
float diffY=e2.getY()-e1.getY();
float diffX=e2.getX()-e1.getX();
if(Math.abs(diffX)>Math.abs(diffY))
{
if(Math.abs(diffX)>SWIPE_THRESHOLD && Math.abs(velocityX)>SWIPE_VELOCITY_THRESHOLD)
{
if(diffX>0)
{
result=onSwipeRight();
}
else
{
result=onSwipeLeft();
}
}
}
else
{
if(Math.abs(diffY)>SWIPE_THRESHOLD && Math.abs(velocityY)>SWIPE_VELOCITY_THRESHOLD)
{
if(diffY>0)
{
result=onSwipeBottom();
}
else
{
result=onSwipeTop();
} }
}
}catch(Exception e)
{
e.printStackTrace();
}
return result;
} }
public boolean onSwipeRight()
{
return false;
}
public boolean onSwipeLeft()
{
return false;
}
public boolean onSwipeBottom() {
return false;
}
public boolean onSwipeTop() {
return false;
}
}}
但是当我只是在 touchevent 上进行滑动时，它正在运行。但是当我添加手势时它不是，因为 GestureDetector 类被贬低，这是这个程序没有运行的原因。