GridView onClickListener/onItemClickListener無法正常工作

我試圖在網格視圖內部實現卡片視圖。網格視圖顯示完美;即使當我觸摸一個網格視圖項目時，它也不會顯示任何內容。但是當我點擊顯示在其下方的文字時。我提到This但不工作...GridView onClickListener/onItemClickListener無法正常工作

謝謝。

我的代碼是如下，

// Contact_Backup.java

public class Contact_Backup extends AppCompatActivity { 

     @Bind(R.id.gridview) 
     GridView gridview; 
     String[] contact_screen_array; 
     @Override 
     protected void onCreate(Bundle savedInstanceState) { 
      super.onCreate(savedInstanceState); 
      setContentView(R.layout.contact_backup); 
      ButterKnife.bind(this); 
      contact_screen_array = getResources().getStringArray(R.array.TextScreen); 
      String[] contact_icon_array = getResources().getStringArray(R.array.IconScreen); 
      String concat = "\nContacts"; 
      gridview.setAdapter(new Custom_Adapter(getApplicationContext(),contact_icon_array,contact_screen_array,concat)); 
     } 
    }

// Custom_Adapter

public class Custom_Adapter extends BaseAdapter { 

    Context contaxt; 
    String[] Array_text; 
    String[] Array_icon; 
    String concat; 
    LayoutInflater inflater; 

    public Custom_Adapter(Context context,String[] Array_icon, String[] Array_text, String concat) 
    { 
     this.contaxt = context; 
     this.Array_text = Array_text; 
     this.Array_icon = Array_icon; 
     this.concat=concat; 
     inflater = (LayoutInflater)context. 
       getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    } 
    @Override 
    public int getCount() { 
     return Array_text.length; 
    } 
    @Override 
    public Object getItem(int position) { 
     return position; 
    } 
    @Override 
    public long getItemId(int position) { 
     return position; 
    } 


    @Bind(R.id.Screen_icon) 
    Button Screen_icon; 
    @Bind(R.id.Screen_text) 
    TextView Screen_text; 

    @Override 
    public View getView(final int position, View convertView, ViewGroup parent) { 
     View grid; 
     LayoutInflater inflater = (LayoutInflater) contaxt 
       .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
     if (convertView == null) { 
      grid = new View(contaxt); 
      grid = inflater.inflate(R.layout.new_app_card_layout, null); 
      ButterKnife.bind(this, grid); 
      Screen_text.setText(Array_text[position]+concat); 
      Screen_icon.setText(Array_icon[position]); 
      Typeface font = Typeface.createFromAsset(contaxt.getAssets(), "fonts/fontawesome-webfont.ttf"); 
      Screen_icon.setTypeface(font); 
     } else { 
      grid = (View) convertView; 
     } 

     grid.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       Log.d("TAG::",""+position); 
      } 
     }); 
     return grid; 
    } 
}

// contact_backup.xml

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:background="@drawable/main_backgorund" 
    > 
    <RelativeLayout 
     android:background="@color/transparent" 
     android:padding="5.0dip" 
     android:id="@+id/top_bar_screen" 
     android:layout_weight="0.2" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content"> 
     <TextView 
      android:textColor="@color/newclr" 
      android:id="@+id/tvContacts" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="@string/contacts" 
      android:shadowColor="#000000" 
      android:shadowDx="1.0" 
      android:shadowDy="1.0" 
      android:shadowRadius="2.0" 
      android:layout_centerVertical="true" /> 
     <TextView 
      android:textColor="@color/newclr" 
      android:id="@+id/tvLastBackup" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="@string/last_backup" 
      android:shadowColor="#000000" 
      android:shadowDx="1.0" 
      android:shadowDy="1.0" 
      android:shadowRadius="2.0" 
      android:layout_alignParentRight="true" 
      android:layout_centerVertical="true" /> 
    </RelativeLayout> 

    <View 
     android:layout_width="fill_parent" 
     android:layout_height="1dp" 
     android:id="@+id/v1" 
     android:layout_below="@+id/top_bar_screen" 
     android:background="@color/newclr"/> 

    <GridLayout 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:id="@+id/swipe" 
     android:layout_below="@+id/v1" 
     android:paddingTop="20sp" 
     android:paddingLeft="10sp" 
     android:paddingRight="10sp" 
     android:layout_weight="0.6" 
     > 

    <GridView 
     android:id="@+id/gridview" 
     android:layout_width="fill_parent" 
     android:columnWidth="90dp" 
     android:numColumns="auto_fit" 
     android:verticalSpacing="10dp" 
     android:horizontalSpacing="10dp" 
     android:layout_height="wrap_content" /> 
    </GridLayout> 

    <!-- com.startapp.android.publish.banner.Banner 
     android:id="@+id/startAppBanner1" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_alignParentBottom="true" 
     android:layout_weight="0.2" 
     android:layout_centerHorizontal="true" /--> 


</RelativeLayout>

// new_app_card_layout.xml

<?xml version="1.0" encoding="utf-8"?> 
<android.support.v7.widget.CardView 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:card_view="http://schemas.android.com/apk/res-auto" 
    android:id="@+id/fssr_card" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    card_view:cardBackgroundColor="@color/transparent" 
    > 

    <LinearLayout 
     android:gravity="center" 
     android:orientation="vertical" 
     android:id="@+id/Contacts_Button_Layout" 
     android:background="@drawable/linearlayout_normal" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" 
     android:layout_marginLeft="-1.0dip" 
     android:layout_weight="1.0" 
     > 

     <Button 
      android:textSize="35.0sp" 
      android:textColor="@color/newclr" 
      android:layout_gravity="center" 
      android:id="@+id/Screen_icon" 
      android:background="@null" 
      android:padding="20sp" 
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content" 
      android:text="@string/fa_icon_contact" 
      android:drawablePadding="5.0dip" 
      android:textAllCaps="false" /> 

     <TextView 
      android:textSize="15.0sp" 
      android:textColor="@color/white" 
      android:layout_gravity="center" 
      android:textAlignment="center" 
      android:id="@+id/Screen_text" 
      android:background="@color/newclr" 
      android:padding="5sp" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:text="@string/contactsbackup" 
      android:textAllCaps="false"/> 

    </LinearLayout> 
</android.support.v7.widget.CardView>

來源

2017-01-02 Jignesh M. Mehta

將偵聽器設置爲實際的gridview對象。 gridView.setOnItemClickListener(new OnItemClickListener()...);

來源

2017-01-02 13:17:36 BiGGZ

我嘗試在Contact_Backup.java類，但這些代碼並沒有影響。 –

非常感謝你的幾次:) :) –

試試這個，

public class Contact_Backup extends AppCompatActivity { 

     @Bind(R.id.gridview) 
     GridView gridview; 
     String[] contact_screen_array; 
     @Override 
     protected void onCreate(Bundle savedInstanceState) { 
      super.onCreate(savedInstanceState); 
      setContentView(R.layout.contact_backup); 
      ButterKnife.bind(this); 
      contact_screen_array = getResources().getStringArray(R.array.TextScreen); 
      String[] contact_icon_array = getResources().getStringArray(R.array.IconScreen); 
      String concat = "\nContacts"; 
      gridview.setAdapter(new Custom_Adapter(getApplicationContext(),contact_icon_array,contact_screen_array,concat)); 
      gridview.setOnClickListener(new View.OnClickListener() { 
       @Override 
       public void onClick(View v) { 
        for(int i=0;i<contact_screen_array.length;i++) { 
         Log.d("TAG::", "Position"+contact_screen_array[i]); 
        } 
       } 
      }); 
     } 
    }

來源

2017-01-02 13:20:20

從適配器類中刪除監聽器，並在活動中使用它 –

我試過了，但它不工作的朋友......它只在點擊contact_screen_array Textview時才起作用。 .. –

非常感謝你的幾個時間.... :) –

-1

試試這個我已經更新您的定義適配器 class.please這個更新的代碼再次檢查。

public class Custom_Adapter extends BaseAdapter { 

    Context contaxt; 
    String[] Array_text; 
    String[] Array_icon; 
    String concat; 
    LayoutInflater inflater; 

    public Custom_Adapter(Context context,String[] Array_icon, String[] Array_text, String concat) 
    { 
     this.contaxt = context; 
     this.Array_text = Array_text; 
     this.Array_icon = Array_icon; 
     this.concat=concat; 
     inflater = (LayoutInflater)context. 
       getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    } 
    @Override 
    public int getCount() { 
     return Array_text.length; 
    } 
    @Override 
    public Object getItem(int position) { 
     return position; 
    } 
    @Override 
    public long getItemId(int position) { 
     return position; 
    } 


    @Bind(R.id.Screen_icon) 
    Button Screen_icon; 
    @Bind(R.id.Screen_text) 
    TextView Screen_text; 

    @Override 
    public View getView(final int position, View convertView, ViewGroup parent) { 
     View grid; 
     LayoutInflater inflater = (LayoutInflater) contaxt 
       .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
     if (convertView == null) { 
      grid = new View(contaxt); 
      grid = inflater.inflate(R.layout.new_app_card_layout, null); 
      ButterKnife.bind(this, grid); 
      Screen_text.setText(Array_text[position]+concat); 
      Screen_icon.setText(Array_icon[position]); 
      Typeface font = Typeface.createFromAsset(contaxt.getAssets(), "fonts/fontawesome-webfont.ttf"); 
      Screen_icon.setTypeface(font); 

      grid.setOnClickListener(new View.OnClickListener() { 
       @Override 
       public void onClick(View v) { 
        Log.d("TAG::",""+position); 
       } 
      }); 

     } else { 
      grid = (View) convertView; 

      grid.setOnClickListener(new View.OnClickListener() { 
       @Override 
       public void onClick(View v) { 
        Log.d("TAG::",""+position); 
       } 
      }); 
     } 
     return grid; 
    } 
}

希望這可以幫助你！

來源

2017-01-02 13:20:42

我試過了，但它不工作的朋友...同樣的問題發生時，它只有當我點擊contact_screen_array Textview ....時才工作。 –

你想要與「android：id =」@ + id/Screen_icon「」這個按鈕相同？ –

是的。可能它不工作僅僅是因爲「android：id =」@ + id/Screen_icon「是Button？ –

使用這種方法爲點擊一個gridview的項目：

gridview.setOnItemClickListener(new AdapterView.OnItemClickListener() { 
     @Override 
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 

     // your action when gridView item is clicked 

     } 
    });

來源

2017-01-02 13:26:57 babak

不工作... :( –

@ JigneshM.Mehta你是什麼意思不工作？你想在單元格點擊後做什麼？請確保你在gridview存在的活動中調用onITEMclicklistener。 – babak

buddy，thanks for我的問題是我在Custom Grid中使用了Button，當我點擊一個Grid時，Grid的代碼被按鈕點擊覆蓋，這樣就不會像我想要的那樣工作。 Textview，而不是按鈕。然後，我會很好地工作。順便說一句，謝謝你的幫助。你的代碼現在也工作正常.. :) –

最後，我成功了。這裏是代碼。

只需在// new_app_card_layout.xml中使用Textview而不是Button即可。

只更新它，

<TextView 
     android:textSize="35.0sp" 
     android:textColor="@color/newclr" 
     android:layout_gravity="center" 
     android:id="@+id/Screen_icon" 
     android:background="@null" 
     android:padding="20sp" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:text="@string/fa_icon_contact" 
     android:drawablePadding="5.0dip" 
     android:textAllCaps="false" 
     android:textAlignment="center" />

太感謝你了，所有的你的幫助... :)

來源

2017-01-02 13:44:40

GridView onClickListener/onItemClickListener無法正常工作

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