Question

我有一个回收站视图，我想返回被单击列表中的位置。我尝试在itemView上设置OnClickListener，但是单击它似乎不会触发

我试图在ViewHolder方法中设置OnClickListener，但这也不起作用

    @Override
public void onBindViewHolder(HomeAdapter.HomeViewHolder holder, final int position) {
    holder.evacName.setText(evacNames.get(position).toString());
    holder.editTextView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

        }
    });

    holder.deleteTextView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

        }
    });

    holder.itemView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            System.out.println("CLICKED ROW " + position);
        }
    });
}

@Override
public int getItemCount() {
    return evacNames.size();
}

class HomeViewHolder extends RecyclerView.ViewHolder{

    TextView evacName;
    TextView editTextView;
    TextView deleteTextView;

    public HomeViewHolder(View itemView) {
        super(itemView);

        evacName = itemView.findViewById(R.id.evacProcedureTextView);
        editTextView = itemView.findViewById(R.id.editTextView);
        deleteTextView = itemView.findViewById(R.id.deleteTextView);

        swipeLayout = (SwipeLayout) itemView.findViewById(R.id.swipeLayout);

        swipeLayout.setShowMode(SwipeLayout.ShowMode.LayDown);

        swipeLayout.addDrag(SwipeLayout.DragEdge.Left, itemView.findViewById(R.id.bottom_wrapper));

        swipeLayout.addSwipeListener(new SwipeLayout.SwipeListener() {
            @Override
            public void onClose(SwipeLayout layout) {
                //when the SurfaceView totally cover the BottomView.
            }

            @Override
            public void onUpdate(SwipeLayout layout, int leftOffset, int topOffset) {
                //you are swiping.
            }

            @Override
            public void onStartOpen(SwipeLayout layout) {

            }

            @Override
            public void onOpen(SwipeLayout layout) {
                //when the BottomView totally show.
            }

            @Override
            public void onStartClose(SwipeLayout layout) {

            }

            @Override
            public void onHandRelease(SwipeLayout layout, float xvel, float yvel) {
                //when user's hand released.
            }
        });
    }
}

单击行后，我希望看到通过System.out单击的行的位置。

Answer 1

使用Log并在Android Studio LogCat中查看输出：

holder.itemView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Log.v("Your Filter", "CLICKED ROW " + position);
        }
    });

在Android中检查this以获得有关Log和System.out的更多信息

Answer 2

我已阅读您的问题，并且已在我的项目中实施。我发现了一个问题及其解决方案。在recyclerview中，onclick侦听器仅在item上起作用，这意味着您在itemveiw上尝试onclick侦听器以及view click都不起作用，因为两者都相似。在这种情况下，如果您在edittextview onclicklistener中打印位置，则onclick仅适用于第一个视图（editTextView），因为其实现是在第一个视图上实现的。

请参见此代码和屏幕截图。

@Override
public void onBindViewHolder(@NonNull Myholder myholder, final int i) {

    myholder.text.setText(name[i]);



     myholder.text.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            System.out.println("check click: "+i);
            Log.e(TAG+"check_clcik_view:",""+i);

        }
    });
    myholder.itemView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            System.out.println("check item view click:"+i);
            Log.e(TAG+"check_clcik_item:",""+i);
        }
    });

}

Answer 3

尝试下面的代码应该可以工作。

  class HomeViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{  // implementing  View.OnClickListener will handle all click event's inside the holder and will keep your code also clean

      TextView evacName;
      TextView editTextView;
      TextView deleteTextView;

      public HomeViewHolder(View itemView) {
          super(itemView);

          evacName = itemView.findViewById(R.id.evacProcedureTextView);
          editTextView = itemView.findViewById(R.id.editTextView);
          deleteTextView = itemView.findViewById(R.id.deleteTextView);

          swipeLayout = (SwipeLayout) itemView.findViewById(R.id.swipeLayout);

          swipeLayout.setShowMode(SwipeLayout.ShowMode.LayDown);

          swipeLayout.addDrag(SwipeLayout.DragEdge.Left, itemView.findViewById(R.id.bottom_wrapper));

          swipeLayout.addSwipeListener(new SwipeLayout.SwipeListener() {
              @Override
              public void onClose(SwipeLayout layout) {
                  //when the SurfaceView totally cover the BottomView.
              }

              @Override
              public void onUpdate(SwipeLayout layout, int leftOffset, int topOffset) {
                  //you are swiping.
              }

              @Override
              public void onStartOpen(SwipeLayout layout) {

              }

              @Override
              public void onOpen(SwipeLayout layout) {
                  //when the BottomView totally show.
              }

              @Override
              public void onStartClose(SwipeLayout layout) {

              }

              @Override
              public void onHandRelease(SwipeLayout layout, float xvel, float yvel) {
                  //when user's hand released.
              }
          });
      }

    @Override
    public void onClick(final View view) {
       //you can handle any type of even specifically for `deleteTextView` or itemView`
       Log.v("Your Filter", "CLICKED ROW " + getAdapterPosition());
    }
  }

注意：根据您的要求，您想向监听器添加监听器，而不是deleteTextView或itemView。设置两个ClickListener实际上会使您的逻辑变得过于复杂。易于在HomeViewHolder

内部处理

holder.deleteTextView.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {

    }
});

holder.itemView.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {   
     Log.v("Your Filter", "CLICKED ROW " + getAdapterPosition());
    }
});

Answer 4

您可以初始化您的布局父对象并使用onclick方法，我将举一个例子。

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
          xmlns:tools="http://schemas.android.com/tools"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_marginLeft="@dimen/activity_horizontal_margin"
          android:layout_marginStart="@dimen/activity_horizontal_margin"
          android:layout_marginBottom="10dp"
          android:orientation="vertical"
android:id="@+id/mMessagelayout">

<ImageView
    android:id="@+id/photoImageView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:adjustViewBounds="true" />

<LinearLayout
    android:layout_width="wrap_content"
    android:orientation="vertical"
    android:background="@drawable/chat_style"
    android:backgroundTint="#f3e5f5"
    android:layout_gravity="start"
    android:padding="20dp"
    android:layout_height="wrap_content"
    >
    <TextView

        android:id="@+id/messageTextView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="10dp"
        android:layout_marginRight="10dp"
        android:layout_weight="0"
        android:textColor="#000"
        android:textAppearance="?android:attr/textAppearanceLarge"
        tools:text="Message" />

    <TextView
        android:id="@+id/nameTextView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="0"

        android:textAppearance="?android:attr/textAppearanceSmall"
        tools:text="Name" />
</LinearLayout>

这是recyclerview中每个项目的xml布局，有我的适配器代码：

public static class SentMessages extends RecyclerView.ViewHolder{
    TextView text,name;
    LinearLayout mParent;
    public SentMessages(View itemView) {
        super(itemView);
        text= (TextView) itemView.findViewById(R.id.messageTextView);
        name= (TextView) itemView.findViewById(R.id.nameTextView);
        mParent= (LinearLayout) itemView.findViewById(R.id.mMessagelayout);
    }



 public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
    final FriendlyMessage friendlyMessage=messages.get(position);
    switch (friendlyMessage.getType()){
        case FriendlyMessage.CHAT_TYPE_SENT:
            ((SentMessages)holder).name.setText(friendlyMessage.getName());
            ((SentMessages)holder).text.setText(friendlyMessage.getText());
            ((SentMessages)holder).mParent.setOnLongClickListener(new View.OnLongClickListener() {
                @Override
                public boolean onLongClick(View v) {

                    Toast.makeText(context,"Message :"+friendlyMessage.getText(),Toast.LENGTH_LONG).show();
                    return false;
                }
            });
            break;
    }
}

希望您能得到它。

RecyclerView itemView.setOnClick侦听器不起作用

4 个答案: