如何在Child Fragment中使用OnClickListener？

Question

在这个Fragment我不能使用OnClickListener：

public class Note_Fragment extends Fragment{ 
    ImageView btn_back; 

    private OnClickListener mclick = new OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      Log.i("test", "YEH"); 
     } 
    }; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

    } 

    public Note_Fragment() 
    { 
     super(); 
    } 
    @Override 
    public void onAttach(Activity activity) 
    { 
     super.onAttach(activity); 
    } 
    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) 
    { 
     View rootView = inflater.inflate(R.layout.note_fragment, container, false); 
     btn_back = (ImageView) rootView.findViewById(R.id.btn_back); 
     btn_back.setOnClickListener(mclick); 

     return rootView; 
    } 
} 

注意：

这Fragment是Fragment是另一个Fragment下降（Child Fragment）

上面的代码无法正常工作。

我xml：

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:materialdesign="http://schemas.android.com/apk/res-auto" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" > 

    <LinearLayout 
     android:id="@+id/Linear_BTNS" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_alignParentTop="true" 
     android:layout_marginTop="10dp" 
     android:layout_marginBottom="10dp" 
     android:layout_centerHorizontal="true" > 

     <com.gc.materialdesign.views.LayoutRipple 
      android:id="@+id/btn_back_root" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_marginLeft="10dp" 
      android:layout_marginRight="10dp" 
      android:background="#1E88E5" 
      android:clickable="true" > 

      <ImageView 
       android:id="@+id/btn_back" 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:background="#00ffffff" 
       android:src="@drawable/ic_action_remove" /> 
     </com.gc.materialdesign.views.LayoutRipple> 

     <com.gc.materialdesign.views.LayoutRipple 
      android:id="@+id/btn_save_root" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:background="#1E88E5" 
      android:clickable="true" > 

      <ImageView 
       android:id="@+id/btn_save" 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:background="#00ffffff" 
       android:src="@drawable/ic_action_save" /> 
     </com.gc.materialdesign.views.LayoutRipple> 
    </LinearLayout> 

    <EditText 
     android:id="@+id/txtNote" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:layout_below="@+id/Linear_BTNS" 
     android:layout_centerHorizontal="true" 
     android:layout_marginLeft="20dp" 
     android:layout_marginRight="20dp" 
     android:gravity="top|right" 
     android:inputType="textMultiLine" 
     android:background="@drawable/shape_border_note" > 
    </EditText> 

</RelativeLayout> 

Answer 1

嗯。好 。

com.gc.materialdesign.views.LayoutRipple 

在xml，所以你应该做的：你是从使用

public class Note_Fragment extends Fragment{ 
    com.gc.materialdesign.views.LayoutRipple btn_back_root; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

    } 

    public Note_Fragment() 
    { 
     super(); 
    } 
    @Override 
    public void onAttach(Activity activity) 
    { 
     super.onAttach(activity); 
    } 
    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) 
    { 
     View rootView = inflater.inflate(R.layout.note_fragment, container, false); 
     btn_back_root = (com.gc.materialdesign.views.LayoutRipple) rootView.findViewById(R.id.btn_back_root); 
     btn_back_root.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       Log.i("test", "YEH"); 

      } 
     }); 

     return rootView; 
    } 
}