处理Recyclerview内部项目的触摸事件 - 安卓

Question

我正在构建一个简单的 RecyclerView，其中包含自定义布局（文本视图和开关）和自定义适配器。

我的问题是我无法处理开关的点击事件（使其切换状态），我已经为 RecyclerView 构建了一个触摸监听器，并且每次我点击开关时它都会触发。

经过多次尝试，开关触摸监听器也会触发，但如果点击开关，我想禁用 RecyclerView 的触摸事件。

这是我的布局代码：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="60.0dip"
android:layout_weight="1.0"
android:orientation="horizontal"
android:paddingLeft="16dp">

<TextView
    android:id="@+id/category_name"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="false"
    android:layout_centerVertical="true"
    android:layout_gravity="center_vertical"
    android:text="Category Name"
    android:textAppearance="?android:textAppearanceLarge" />

<android.support.v7.widget.SwitchCompat
    android:id="@+id/category_switch"
    android:layout_width="80dp"
    android:layout_height="wrap_content"
    android:layout_alignParentEnd="true"
    android:layout_alignParentRight="true"
    android:layout_centerVertical="true"
    android:layout_gravity="center_vertical"
    android:checked="true"
    android:clickable="true"
    android:focusable="false"
    android:focusableInTouchMode="false"
    android:paddingRight="16dp" />

</RelativeLayout>

这是我的适配器代码：

public CategoryViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

    View row = layoutInflater.inflate(R.layout.single_row_category, parent, false);
    CategoryViewHolder holder = new CategoryViewHolder(row);

    return holder;
}

public void onBindViewHolder(CategoryViewHolder holder, final int position) {
    AlarmCategory thisCat = categories.get(position);

    holder.catName.setText(thisCat.getCategoryName());

    holder.catStatus.setChecked(thisCat.isOn());

    holder.catStatus.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View view, MotionEvent motionEvent) {
            Log.d("fpp", view.getClass().getName() + " is clicked");
            return true;
        }
    });
}

public class CategoryViewHolder extends RecyclerView.ViewHolder implements View.OnCreateContextMenuListener {

    public TextView catName;
    public SwitchCompat catStatus;

    public CategoryViewHolder(View itemView) {
        super(itemView);
        itemView.setOnCreateContextMenuListener(this);

        catName = (TextView) itemView.findViewById(R.id.category_name);
        catStatus = (SwitchCompat) itemView.findViewById(R.id.category_switch);
    }

    @Override
    public void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo contextMenuInfo) {
        menu.add(0, 1001, 0, "Edit");//groupId, itemId, order, title
        menu.add(0, 1002, 1, "Delete");
    }
}

这是我的RecyclerView触摸处理程序：

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.getChildPosition(child));
                }
            }
        });
    }

    @Override
    public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
        View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
        if (child != null && clickListener != null && gestureDetector.onTouchEvent(e)) {
            clickListener.onClick(child, rv.getChildPosition(child));

            Log.d("fpp", child.getClass().getName() + " is clicked");

            return false;
        }

        return false;
    }

    @Override
    public void onTouchEvent(RecyclerView rv, MotionEvent e) {

    }

    @Override
    public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {

    }
}

在onCreate方法中，我通过以下方式调用它：

recyclerView.addOnItemTouchListener(new RecyclerTouchListener(this, recyclerView, new ClickListener() {
        @Override
        public void onClick(View view, int position) {
            Intent i = new Intent(CategoriesList.this, AlarmList.class);
            i.putExtra("catID", categories.get(position).getCategoryID());
            startActivity(i);
        }

        @Override
        public void onLongClick(View view, int position) {
            catPos = position;
        }
    }));

任何帮助都行，我已经尝试了很多解决方案，但都没有用，感到很抱歉。

提前致谢。

- Fareed

Answer 1

一种方法是更新您的持有者（holder）以在内部处理任何视图点击，例如：

public class CategoryViewHolder extends RecyclerView.ViewHolder implements View.OnCreateContextMenuListener, View.OnClickListener, CompoundButton.OnSetCheckedListener {
    public CategoryViewHolder(View itemView) {
        super(itemView);
        itemView.setOnCreateContextMenuListener(this);
        itemView.setOnClickListener(this);

        catName = (TextView) itemView.findViewById(R.id.category_name);
        catStatus = (SwitchCompat) itemView.findViewById(R.id.category_switch);
        catStatus.setOnCheckChangedListener(this);
    }

    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        // deal with catStatus change
    }

    public void onClick(View view) {
        // deal with itemView click
    }
}

- Dimitar Genov

---

谢谢您的回答，但是我写了这段代码并添加了 Log.d("fopp", view.getClass().getName() + " is clicked from inner"); 但是很抱歉什么也没有发生。 - Fareed

您正在使用手势检测器，它会夺取触摸事件并不会传递到其他任何地方。答案中的代码可以工作，但需要删除以下两个部分：1）recyclerView.addOnItemTouchListener() 部分和 2）手势检测器。 - Dimitar Genov

如何处理布局本身的触摸事件？当除开开关以外的任何东西被点击时，我想要导航到另一个活动。 - Fareed

onClick(View view) 是用于单击布局的方法，即 itemView。itemView 是您填充的布局视图呈现。只需将活动导航代码移至该方法中即可。 - Dimitar Genov

Answer 2

1. Create class RecyclerTouchListener

   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.getChildPosition(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.getChildPosition(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);
     }
   }
   

2. Use this Listener in Activity

   recyclerview.addOnItemTouchListener(new RecyclerTouchListener(getActivity(), recyclerview, new RecyclerTouchListener.ClickListener() {
           @Override
           public void onClick(View view, int position) {
   
              // Write your code here
   
           }
   
           @Override
           public void onLongClick(View view, int position) {
   
           }
       }));
   

- rhaldar