處理點擊圖像按鈕的活動列表視圖

Question

我有一個播放按鈕的歌曲列表視圖 .. 現在我需要點擊這個播放按鈕的基礎上，他們的立場，並點擊更改後選擇一個暫停按鈕..但我必須在我的活動內沒有在適配器（getView）中做到這一點..任何建議！？

lv.setOnItemClickListener(new OnItemClickListener() { 

    @Override 
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 
     //productList is my ArrayList<Product> and 
     //Product is my Serializable class that holds 
     // items that is in mysql database 
     Product selectedProduct = productList.get(position); 


    } 
}); 

Answer 1

首先，使用recyclerview而不是listview。此後，在onBindViewHolder方法適配器內部處理由addind點擊收聽點擊，持有人：

holder.setOnClickListener(...); 

接口：

public interface OnItemClicked{ 
    void onItemClicked(/*HERE YOUR VARIABLES TO PASS FROM ADAPTER TO MAINACTIVITY); 
} 

適配器：

OnItemClicked listener; 

public void setOnItemClickedListener(OnItemClicked listener){ 
    this.listener = listener; 
} 

向下，上onBindViewHolder方法：

@Override 
public ViewHolder onBindViewHolder(... params){ 
    ...your code 

    holder.setOnClickListener(new View.OnClickListener{ 
     @Override 
     public void onClick(View v){ 
      if(listener != null) 
       listener.onItemClicked() 
     } 
    }); 
} 

，最後，在您的MainActivity：

adapter.setOnItemClickedListener(new OnItemClicked ...) <- here will pop up autocomplete 

Answer 2

使用這種在您的活動

1. 聲明RecyclerView並設置佈局管理器

2. 設置適配器

view.setAdapter（mAda PTER）;

上點擊執行

v

view.addOnitemTouchListener(

new RecyclerItemClickListener(getApplicationContext(), new RecyclerItemClickListener.OnItemClickListener() { 

        @Override 
        public void onItemClick(View view, int position) { 

         //do something 
        } 
       }) 
     ); 

RecyclerItemClickListener：

public class RecyclerItemClickListener implements RecyclerView.OnItemTouchListener { 
    private OnItemClickListener mListener; 

    public interface OnItemClickListener { 
     public void onItemClick(View view, int position); 
    } 

    GestureDetector mGestureDetector; 

    public 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) { 

    } 
}