GridView按鈕無法正常工作

我有一個GridView，並使用BaseAdapter來填充每個網格項的值。我使用此適配器以編程方式在每個網格項中添加按鈕。問題是，我總共有七個按鈕。點擊每個按鈕後，該按鈕將被禁用，因此只能單擊一次。GridView按鈕無法正常工作

所以當第二個按鈕被點擊時，第7個按鈕停止工作。如果點擊第7個按鈕，則第一個按鈕停止工作。除此之外，按鈕工作正常，功能正常。

編輯：好像通過GridView滾動（因爲在GridView內部的元素是大是造成問題。）

下面是相關的代碼。

MyAdapter.java

 import static com.example.tuss.mafia.R.layout.layout_grid_item; 

public class MyAdapter extends BaseAdapter { 
Context context; 
ArrayList<Players> playerList; 
private static LayoutInflater inflater = null; 

public MyAdapter(Context context, ArrayList<Players> playerList){ 
    this.context = context; 
    this.playerList = playerList; 
    inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
} 


@Override 
public int getCount() { 
    return playerList.size(); 
} 

@Override 
public Object getItem(int position) { 
    return position; 
} 

@Override 
public long getItemId(int position) { 
    return position; 
} 

@Override 
public View getView(int position, View convertView, ViewGroup parent) { 
    if (convertView == null) 
     convertView = inflater.inflate(layout_grid_item, null); 

    final Button button = (Button) convertView.findViewById(R.id.btnRoleReveal); 
    TextView idTextView = (TextView) convertView.findViewById(R.id.tv_player_id); 
    TextView nameTextView = (TextView) convertView.findViewById(R.id.tv_player_name); 
    final TextView roleTextView = (TextView) convertView.findViewById(R.id.tv_player_role); 

    Players p; 
    p = playerList.get(position); 
    idTextView.setText("ID: " + String.valueOf(p.getId())); 
    nameTextView.setText(String.valueOf(p.getName())); 
    roleTextView.setText("Your Role Is: " + String.valueOf(p.getRole())+ ", you won't be able to view this again."); 

    final String role = roleTextView.getText().toString(); 

    button.setOnLongClickListener(new View.OnLongClickListener() { 
     @Override 
     public boolean onLongClick(View v) { 
      new AlertDialog.Builder(context) 
        .setTitle("Remember your role and keep it a secret!") 
        .setMessage(role) 
        .create() 
        .show(); 
        button.setEnabled(false); 
        button.setText("Role has been viewed"); 
      return true; 
     } 
    }); 

    return convertView; 
} 
}

的XML爲GridView，fragment_viewroles.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:tools="http://schemas.android.com/tools" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:paddingBottom="@dimen/activity_vertical_margin" 
android:paddingLeft="@dimen/activity_horizontal_margin" 
android:paddingRight="@dimen/activity_horizontal_margin" 
android:paddingTop="@dimen/activity_vertical_margin" 
tools:context="com.example.tuss.mafia.GameActivity" > 



<GridView 
    android:id="@+id/gv_players" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:numColumns="2" 
    android:stretchMode="columnWidth" 
    android:nestedScrollingEnabled="true" 
    android:columnWidth="150dp" 
    android:horizontalSpacing="10dp" 
    android:verticalSpacing="20dp" 
    android:textAlignment="center" 
    android:gravity="center"> 
</GridView> 

</RelativeLayout>

layout_grid_item.xml

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:background="@drawable/customborder" 
android:orientation="vertical" > 

<TextView 
    android:id="@+id/tv_player_id" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:textAlignment="center" 
    android:textColor="@android:color/white" 
    android:visibility="gone" 
    android:text="ID" /> 

<TextView 
    android:id="@+id/tv_player_name" 
    android:textAlignment="center" 
    android:textSize="35dp" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:textColor="@android:color/holo_blue_bright" 
    android:text="" 
    android:textStyle="normal|bold" /> 

<TextView 
    android:id="@+id/tv_player_role" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:textAlignment="center" 
    android:clickable="true" 
    android:text="role" 
    android:visibility="invisible"> 
</TextView> 

<Button 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:text="Hold to reveal your role" 
    android:id="@+id/btnRoleReveal" 
    />

RolesFragment.java

public RolesFragment() { 

} 

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 

    View view = inflater.inflate(R.layout.fragment_viewroles, container, false); 

    gridView = (GridView) view.findViewById(R.id.gv_players); 
    DatabaseHelper databaseHelper = new DatabaseHelper(getActivity()); 
    playersList = new ArrayList<Players>(); 

    playersList = databaseHelper.getPlayers(); 
    adapter = new MyAdapter(getActivity(), playersList); 
    gridView.setAdapter(adapter); 
    return view; 
}

來源

2017-04-20 Tuss Ramzan

我認爲你缺少你的警告對話框.create（）只是初始化按鈕事件。 –

.show（）和.create（）是一樣的嗎？ –

其實.show（）顯示對話框，而.create（）創建對話框。當你調用.show（）時，它實際上也會調用.create（）函數。另外，在onCreateView方法中使用片段時，應該只調用findviewbyid方法。在onActivityCreated（）中必須執行的其他操作。 –

替換button.setEnabled（假）; （（Button）v）.setEnabled（false）;

來源

2017-04-20 22:10:11 raju

它仍然無法正常工作 –

我認爲問題出在你的按鈕事件中。一旦

if (convertView == null){ 
    convertView = inflater.inflate(layout_grid_item, null); 
    Button button = (Button) convertView.findViewById(R.id.btnRoleReveal); 
    button.setOnLongClickListener(new View.OnLongClickListener() { 
    @Override 
    public boolean onLongClick(View v) { 
     Button btn = (Button)v; 
     new AlertDialog.Builder(context) 
       .setTitle("Remember your role and keep it a secret!") 
       .setMessage(role) 
       .create() 
       .show(); 
       btn.setEnabled(false); 
       btn.setText("Role has been viewed"); 
     return true; 
    } 
    }); 
}

Check this KodeCenter example

來源

2017-04-21 17:19:05 AAli

GridView按鈕無法正常工作

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