我开始在 Android 中使用 RecyclerView。一切工作正常,直到我为我的适配器实现触摸侦听器。
来自这个主题:
https://stackoverflow.com/a/26826692/2923403 https://stackoverflow.com/a/26826692/2923403
我可以正确实现 childview 的监听器。但是,我想同时实现 OnItemClick 和 OnItemLongClick,然后出现问题。他们总是同时被解雇。首先是 OnItemClick,然后是 OnItemLongClick,这使得我的函数毫无用处。
这是我的自定义侦听器的代码(基于上面的代码,感谢 Fouad):
public class RecyclerItemClickListener implements RecyclerView.OnItemTouchListener {
private OnItemClickListener mListener;
public static interface OnItemClickListener {
public boolean onItemClick(View view, int position);
public void onItemLongClick(View view, int position);
}
GestureDetector mGestureDetector;
public RecyclerItemClickListener(Context context, final RecyclerView recyclerView, OnItemClickListener listener) {
mListener = listener;
mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
@Override
public void onLongPress(MotionEvent e) {
View childView = recyclerView.findChildViewUnder(e.getX(), e.getY());
if (childView != null && mListener != null) {
mListener.onItemLongClick(childView, recyclerView.getChildPosition(childView));
}
}
});
}
@Override
public boolean onInterceptTouchEvent(RecyclerView view, MotionEvent e) {
View childView = view.findChildViewUnder(e.getX(), e.getY());
if (childView != null && mListener != null && mGestureDetector.onTouchEvent(e)) {
mListener.onItemClick(childView, view.getChildPosition(childView));
return true;
}
return false;
}
@Override
public void onTouchEvent(RecyclerView view, MotionEvent motionEvent) {
}
对于实施:
mRecyclerView.addOnItemTouchListener(new RecyclerItemClickListener(getActivity(), mRecyclerView, new RecyclerItemClickListener.OnItemClickListener() {
@Override
public boolean onItemClick(View view, int position) {
//This is fired 1st
}
@Override
public void onItemLongClick(View view, int position) {
//This comes later
}));
你有什么解决办法吗?