AlertDialog样式-如何更改标题、消息等的样式（颜色）

Question

我已经为这件事伤透了脑筋。我需要做的是，改变android应用程序中所有AlertDialog的样式--对话框背景需要是白色的，文本需要是黑色的。我尝试从代码、清单等创建许多样式、主题和应用程序，但没有成功，关于AlertDialog中的文本颜色。现在，我有一个最简单的代码，如下所示：

舱单：

<application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >

xml：

<style name="AppTheme" parent="AppBaseTheme">
    <item name="android:alertDialogStyle">@style/DialogStyle</item>
</style>

<style name="DialogStyle" parent="@android:style/Theme.Dialog">
    <!-- changing these background stuff works fine -->
    <item name="android:bottomBright">@android:color/white</item>
    <item name="android:bottomDark">@android:color/white</item>
    <item name="android:bottomMedium">@drawable/dialog_footer_bg</item>
    <item name="android:centerBright">@android:color/white</item>
    <item name="android:centerDark">@drawable/dialog_body_bg</item>
    <item name="android:centerMedium">@android:color/white</item>
    <item name="android:fullBright">@color/orange</item>
    <item name="android:fullDark">@color/orange</item>
    <item name="android:topBright">@color/green</item>
    <item name="android:topDark">@drawable/dialog_header_bg</item>

    <!-- panelBackground is not getting set to null, there is something squarish around it -->
    <item name="android:panelBackground">@null</item>

    <!-- Setting this textColor doesn't seem to have any effect at all. Messages, title, button text color, whatever; nothing changes. -->
    <item name="android:textColor">#000000</item>

    <!-- Also tried with textAppearance, as follows. Didn't work -->
    <item name="android:textAppearance">?android:attr/textColorPrimaryInverse</item>

    <!-- Also tried changing textAppearancePrimary, to no avail -->
    <item name="android:textColorPrimary">#000000</item>

    <!-- Also need to change the dialog title text, tried it as follows, dint work: -->
    <item name="android:windowTitleStyle">@style/DialogWindowTitle</item>
</style>

<style name="DialogWindowTitle">
    <item name="android:textAppearance">?android:attr/textAppearanceMediumInverse</item>
</style>

null

编辑：添加截图：

Answer 1

您需要为AlertDialog定义一个主题，并在活动的主题中引用它。该属性是AlertDialogTheme而不是AlertDialogStyle。像这样：

<style name="Theme.YourTheme" parent="@android:style/Theme.Holo">
    ...
    <item name="android:alertDialogTheme">@style/YourAlertDialogTheme</item>
</style>

<style name="YourAlertDialogTheme">
    <item name="android:windowBackground">@android:color/transparent</item>
    <item name="android:windowContentOverlay">@null</item>
    <item name="android:windowIsFloating">true</item>
    <item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item>
    <item name="android:windowMinWidthMajor">@android:dimen/dialog_min_width_major</item>
    <item name="android:windowMinWidthMinor">@android:dimen/dialog_min_width_minor</item>
    <item name="android:windowTitleStyle">...</item>
    <item name="android:textAppearanceMedium">...</item>
    <item name="android:borderlessButtonStyle">...</item>
    <item name="android:buttonBarStyle">...</item>
</style>

您将能够改变标题、消息的颜色和文本外观，您将对每个区域的背景进行一些控制。我写了一篇博客文章，详细介绍了设置AlertDialog样式的步骤。