如何更改Android Alert Dialog Title的背景

Question

我想更改Alert对话框的背景.我试过以下代码片段:

 <style name="Theme.AlertDialog" parent="@android:style/Theme.Holo.Light.Dialog">
        <item name="android:background">@android:color/transparent</item>
        <item name="android:textColor">#659F26</item>
        <item name="android:windowTitleStyle">@style/Theme.AlertDialog.Title</item>
    </style>

    <style name="Theme.AlertDialog.Title" parent="@android:style/TextAppearance.DialogWindowTitle">
        <item name="android:background">@drawable/cab_background_top_example</item>
    </style>

Java代码:

ContextThemeWrapper ctw = new ContextThemeWrapper( this, R.style.Theme_AlertDialog);
final AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(ctw);

alertDialogBuilder.setTitle(getResources().getString(R.string.confirmation));   
alertDialogBuilder.setMessage(getResources().getString(R.string.msg));       
alertDialogBuilder.show();

我的应用程序显示如下对话框:

虽然我希望它看起来像:

请建议,我做错了什么.

Answer 1

创建对话框时使用此代码:

 dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);   

创建自己的布局尽可能多的自定义标题,然后设置您的布局

  dialog.setContentView(R.layout.yourlayout);

注意:使用

dialog.requestWindowFeature(Window.FEATURE_NO_TITLE); before     
dialog.setContentView(R.layout.yourlayout);

否则会给出错误.