在我的应用程序中,我使用Android JetPack导航组件,我在一个活动中创建了一些片段,每个活动在按钮点击时打开。是否可以添加一个片段ViewPager,滚动到第二个,但此活动中的其他片段将打开按钮?
我在这里找到了sollution:Android Fragment onCreateView with Gestures这里我的代码,从右到左滑动导航到其他片段
final GestureDetector gesture = new GestureDetector(getActivity(),
new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onDown(MotionEvent e) {
return true;
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
Log.i(Constants.APP_TAG, "onFling has been called!");
final int SWIPE_MIN_DISTANCE = 120;
final int SWIPE_MAX_OFF_PATH = 250;
final int SWIPE_THRESHOLD_VELOCITY = 200;
try {
if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH)
return false;
if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE
&& Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
Navigation.findNavController(getView()).navigate(R.id.YOURFRAGMENTID);
}
} catch (Exception e) {
// nothing
}
return super.onFling(e1, e2, velocityX, velocityY);
}
});
v.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
return gesture.onTouchEvent(event);
}
});
把它放在片段的onCreateView()方法中。