AlertDialog主题不工作

Question

我的源

private static final int ALERT_DIALOG = 1; 

    @Override 
    public void onBackPressed() { 
     // buildAlertMessageExit(); 

     showDialog(ALERT_DIALOG); 
    } 

    @Override 
    protected Dialog onCreateDialog(int id) { 
     Dialog dialog = null; 
     if (id == ALERT_DIALOG) { 
      ContextThemeWrapper ctw = new ContextThemeWrapper(this, 
        R.style.AlertDialogCustom); 
      AlertDialog.Builder builder = new AlertDialog.Builder(ctw); 
      builder.setMessage("Hello World") 
        .setTitle("Alert Dialog") 
        .setIcon(android.R.drawable.ic_dialog_alert) 
        .setCancelable(false) 
        .setPositiveButton("Close", 
          new DialogInterface.OnClickListener() { 
           public void onClick(DialogInterface dialog, 
             int which) { 
            dialog.dismiss(); 
           } 
          }); 
      dialog = builder.create(); 
     } 
     if (dialog == null) { 
      dialog = super.onCreateDialog(id); 
     } 
     return dialog; 
    } 

styles.xml

<style name="AlertDialogCustom" parent="@android:style/Theme.Dialog"> 
    <item name="android:windowBackground">@null</item> 
    <item name="android:windowFrame">@null</item> 
    </style> 

，结果没有主题

Answer 1

insted的这个：

ContextThemeWrapper ctw = new ContextThemeWrapper(this, 
        R.style.AlertDialogCustom); 
      AlertDialog.Builder builder = new AlertDialog.Builder(ctw); 

尝试

AlertDialog.Builder builder = new AlertDialog.Builder(this, 
       R.style.AlertDialogCustom_); 

But its require MIN API LEVEL 11.

如果你需要支持Android >= 3.0你可能要创建（使用AlertDialog代替custom dialog。

检查此link了解更多详情。