recyclers child view包含两个可点击的对象,一个是一组TextViews和ImageView,另一个是一个CheckBox (引用 - Android Recyclerview Multiple onclick items) 我想看看是否在 child 身上点击了复选框。如果是这样,那么我更改 CheckBox 的状态。 否则,我发起另一项 Activity (为了结果)。上面的链接显示了处理 View 持有者中的点击。我想在设置 RecyclerView 的其他 Activity 中处理点击。
//the view needs a listener
final GestureDetector mGestureDetector = new GestureDetector(getActivity(), new GestureDetector.SimpleOnGestureListener() {
@Override public boolean onSingleTapUp(MotionEvent e) {
return true;
}
});
mRecyclerView.addOnItemTouchListener(new RecyclerView.OnItemTouchListener() {
@Override
public boolean onInterceptTouchEvent(RecyclerView recyclerView, MotionEvent motionEvent) {
View child = recyclerView.findChildViewUnder(motionEvent.getX(),motionEvent.getY());
if(child!=null && mGestureDetector.onTouchEvent(motionEvent)){
if(child.getId() == R.id.chk_box_pin){
//checking, this didn't work
}
else {
TextView idView = (TextView) child.findViewById(R.id.note_id_txt_vw);
if (DEBUG) Toast.makeText(getActivity(),
"ID is " + idView.getText().toString(), Toast.LENGTH_SHORT).show();
startEditNoteActivity(ActivityContract.ACTIVITY_EDIT, idView.getText().toString());
}
return true;
}
return false;
}
@Override
public void onTouchEvent(RecyclerView recyclerView, MotionEvent motionEvent) {
}
});
有没有一种方法可以处理对 Activity 中子项(而不是 ViewHolder)中的多个项目的点击?
最佳答案
您始终可以创建一个将事件传递给 Activity 的接口(interface)。 例如
public interface ChildItemClickListener {
public void onClick(View v, int position);
}
然后在你的适配器中
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
/* your code*/
...
private ChildItemClickListener listener;
...
*/
public void setChildItemClickListener(ChildItemClickListener listener) {
this.listener = listener;
}
}
然后你像这样调用它
if(child!=null && mGestureDetector.onTouchEvent(motionEvent)) {
if(child.getId() == R.id.chk_box_pin){
//checking, this didn't work
}
else {
TextView idView = (TextView) child.findViewById(R.id.note_id_txt_vw);
if (DEBUG) Toast.makeText(getActivity(),
"ID is " + idView.getText().toString(), Toast.LENGTH_SHORT).show();
startEditNoteActivity(ActivityContract.ACTIVITY_EDIT, idView.getText().toString());
}
if(listener != null)
listener.onClick(YOUR_VIEW, POSITION);
return true;
}
就是这样 :) 希望对您有所帮助,祝您好运
关于android - 如何检查在 recyclerview 子项中单击了哪个项目,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/30175426/