Android 如何为RecyclerView设置McClickListener?
我正在尝试实现一个recyclerView,但是如何为我的recyclerView设置一个McClickListenerAndroid 如何为RecyclerView设置McClickListener?,android,android-recyclerview,onitemclicklistener,Android,Android Recyclerview,Onitemclicklistener,我正在尝试实现一个recyclerView,但是如何为我的recyclerView设置一个McClickListener 关于SO已经有了一些答案,但它们比我所需要的更简短。用这些代码定义一个名为RecyclerItemClickListener的类 class RecyclerItemClickListener implements RecyclerView.OnItemTouchListener { private OnItemClickListener mListener;
关于SO已经有了一些答案,但它们比我所需要的更简短。用这些代码定义一个名为
RecyclerItemClickListener
的类
class RecyclerItemClickListener implements RecyclerView.OnItemTouchListener {
private OnItemClickListener mListener;
interface OnItemClickListener {
void onItemClick(View view, int position);
}
private GestureDetector mGestureDetector;
RecyclerItemClickListener(Context context, OnItemClickListener listener) {
mListener = listener;
mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
});
}
@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.getChildAdapterPosition(childView));
}
return false;
}
@Override
public void onTouchEvent(RecyclerView view, MotionEvent motionEvent) {
}
@Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
}
}
recyclerView.addOnItemTouchListener(new RecyclerItemClickListener(MainActivity.this, new RecyclerItemClickListener.OnItemClickListener() {
@Override
public void onItemClick(View view, int position) {
}
}));
然后在活动中使用此代码
class RecyclerItemClickListener implements RecyclerView.OnItemTouchListener {
private OnItemClickListener mListener;
interface OnItemClickListener {
void onItemClick(View view, int position);
}
private GestureDetector mGestureDetector;
RecyclerItemClickListener(Context context, OnItemClickListener listener) {
mListener = listener;
mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
});
}
@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.getChildAdapterPosition(childView));
}
return false;
}
@Override
public void onTouchEvent(RecyclerView view, MotionEvent motionEvent) {
}
@Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
}
}
recyclerView.addOnItemTouchListener(new RecyclerItemClickListener(MainActivity.this, new RecyclerItemClickListener.OnItemClickListener() {
@Override
public void onItemClick(View view, int position) {
}
}));
在Android中,RecyclerView没有任何类似ListView的
侦听器。因此,您需要通过扩展RecyclerView.OnItemTouchListener
来创建自己的类
创建一个类RecyclerTouchListener.java
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
public class RecyclerTouchListener implements RecyclerView.OnItemTouchListener {
private GestureDetector gestureDetector;
private ClickListener clickListener;
public RecyclerTouchListener(Context context, final RecyclerView recyclerView, final ClickListener clickListener) {
this.clickListener = clickListener;
gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
@Override
public void onLongPress(MotionEvent e) {
View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
if (child != null && clickListener != null) {
clickListener.onLongClick(child, recyclerView.getChildAdapterPosition(child));
}
}
});
}
@Override
public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
View child = rv.findChildViewUnder(e.getX(), e.getY());
if (child != null && clickListener != null && gestureDetector.onTouchEvent(e)) {
clickListener.onClick(child, rv.getChildAdapterPosition(child));
}
return false;
}
@Override
public void onTouchEvent(RecyclerView rv, MotionEvent e) {
}
@Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
}
public interface ClickListener {
void onClick(View view, int position);
void onLongClick(View view, int position);
}
}
然后在活动中重写onClick
方法
recyclerView.addOnItemTouchListener(new RecyclerTouchListener(context, recyclerView, new RecyclerTouchListener.ClickListener() {
@Override
public void onClick(View view, int position) {
// Toast.makeText(getActivity(), position+ " is selected successfully", Toast.LENGTH_SHORT).show();
//handle click event
}
@Override
public void onLongClick(View view, int position) {
}
}));
通过这种方式,您可以处理recyclerview项目点击事件
。@Vinoth Vinoi如果我的答案有助于您接受,请接受。快乐编码…:)@SabirHossain@VinothVino在RecyclerTouchListener
类中,getChildPosition
已被弃用。nice explaution stackoverflow.com/a/31199564/5788247