我有这个AlertDialog主题相关的问题使用sdk 1.6描述在这里:http://markmail.org/message/mj5ut56irkrkc4nr

我通过以下方法解决了这个问题:

  new AlertDialog.Builder(
  new ContextThemeWrapper(context, android.R.style.Theme_Dialog))

我不确定Arve的解决方案如何在自定义对话框中工作，其中视图通过LayoutInflator膨胀。

解决方案应该是通过cloneInContext()在充气器中插入ContextThemeWrapper:

View sensorView = LayoutInflater.from(context).cloneInContext(
     new ContextThemeWrapper(context, R.style.AppTheme_DialogLight)
).inflate(R.layout.dialog_fingerprint, null);

 <style name="AlertDialogCustom" parent="Theme.AppCompat.Light.Dialog.Alert">
    <!-- Used for the buttons -->
    <item name="colorAccent">@color/colorAccent</item>
    <!-- Used for the title and text -->
    <item name="android:textColorPrimary">#FFFFFF</item>
    <!-- Used for the background -->
    <item name="android:background">@color/teal</item>
</style>





new AlertDialog.Builder(new ContextThemeWrapper(context,R.style.AlertDialogCustom))
            .setMessage(Html.fromHtml(Msg))
            .setPositiveButton(posBtn, okListener)
            .setNegativeButton(negBtn, null)
            .create()
            .show();

我想这是不可能的。至少不是和建造者。我正在使用1.6和Builder.create()中的实现是:

public AlertDialog create() {
    final AlertDialog dialog = new AlertDialog(P.mContext);
    P.apply(dialog.mAlert);
    [...]
}

它调用AlertDialog的“非主题感知”构造函数，看起来像这样:

protected AlertDialog(Context context) {
    this(context, com.android.internal.R.style.Theme_Dialog_Alert);
}

在AlertDialog中有第二个构造函数用于更改主题:

protected AlertDialog(Context context, int theme) {
    super(context, theme);
    [...]
}

建造者就是不叫。

如果Dialog非常通用，我会试着编写AlertDialog的子类，调用第二个构造函数并使用该类而不是生成器机制。

我在博客上写过一篇关于如何用XML样式文件配置AlertDialog布局的文章。主要的问题是不同的布局参数需要不同的样式定义。下面是一个基于Holo Light平台19版AlertDialog样式的样板文件，该样式文件应该涵盖一系列标准布局方面，如文本大小和背景颜色。

<style name="AppBaseTheme" parent="android:Theme.Holo.Light">
    ...
    <item name="android:alertDialogTheme">@style/MyAlertDialogTheme</item>
    <item name="android:alertDialogStyle">@style/MyAlertDialogStyle</item>
    ...
</style>

<style name="MyBorderlessButton">
    <!-- Set background drawable and text size of the buttons here -->
    <item name="android:background">...</item>
    <item name="android:textSize">...</item>
</style>

<style name="MyButtonBar">
    <!-- Define a background for the button bar and a divider between the buttons here -->
    <item name="android:divider">....</item>
    <item name="android:dividerPadding">...</item>
    <item name="android:showDividers">...</item>
    <item name="android:background">...</item>
</style>

<style name="MyAlertDialogTitle">
    <item name="android:maxLines">1</item>
    <item name="android:scrollHorizontally">true</item>
</style>

<style name="MyAlertTextAppearance">
    <!-- Set text size and color of title and message here -->
    <item name="android:textSize"> ... </item>
    <item name="android:textColor">...</item>
</style>

<style name="MyAlertDialogTheme">
    <item name="android:windowBackground">@android:color/transparent</item>
    <item name="android:windowTitleStyle">@style/MyAlertDialogTitle</item>
    <item name="android:windowContentOverlay">@null</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:windowIsFloating">true</item>
    <item name="android:textAppearanceMedium">@style/MyAlertTextAppearance</item>
    <!-- If you don't want your own button bar style use
            @android:style/Holo.Light.ButtonBar.AlertDialog
            and
            ?android:attr/borderlessButtonStyle
         instead of @style/MyButtonBar and @style/MyBorderlessButton -->
    <item name="android:buttonBarStyle">@style/MyButtonBar</item>
    <item name="android:buttonBarButtonStyle">@style/MyBorderlessButton</item>
</style>

<style name="MyAlertDialogStyle">
    <!-- Define background colors of title, message, buttons, etc. here -->
    <item name="android:fullDark">...</item>
    <item name="android:topDark">...</item>
    <item name="android:centerDark">...</item>
    <item name="android:bottomDark">...</item>
    <item name="android:fullBright">...</item>
    <item name="android:topBright">...</item>
    <item name="android:centerBright">...</item>
    <item name="android:bottomBright">...</item>
    <item name="android:bottomMedium">...</item>
    <item name="android:centerMedium">...</item>
</style>

您可以通过修改活动的主题属性....来覆盖由活动生成的DialogFragments所使用的默认主题

在AndroidManifest.xml中设置活动的主题。

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.helloworld">

    <application
        android:name=".App"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">     <!-- set all Activity themes to your custom theme -->

        .....

    </application>

</manifest>

在values/styles.xml中，重写用于确定派生的DialogFragments使用什么主题的项

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <style name="AppTheme" parent="Theme.AppCompat">

        <!-- override the default theme for DialogFragments -->
        <item name="android:dialogTheme">@style/AppTheme.Dialog</item>

    </style>

    .....

</resources>

在values/styles.xml中，定义并配置你想要用于DialogFragments的主题

<?xml version="1.0" encoding="utf-8"?>
<resources>

    .....

    <!--
        configure your custom theme for DialogFragments...
    -->
    <style name="AppTheme.Dialog" parent="Theme.AppCompat.Dialog.MinWidth">

        <!-- override the default theme for DialogFragments spawned by this DialogFragment -->
        <item name="android:dialogTheme">@style/AppTheme.Dialog</item>

        <!--
            OPTIONAL: override the background for the dialog...i am using a dark theme,
            and for some reason, there is no themes for dialogs with dark backgrounds,
            so, i made my own.
        -->
        <item name="android:windowBackground">@drawable/dialog__window_background</item>

        <!--
            add the title to the dialog's theme. you can remove it later by using
            DialogFragment.setStyle()
        -->
        <item name="android:windowNoTitle">false</item>
        <item name="windowNoTitle">?android:windowNoTitle</item>

    </style>

    .....

</resources>

可选:如果你使用一个黑暗的主题，并覆盖android:windowBackground，就像我在AppTheme。对话框，然后添加一个可绘制的/dialog__window_background.xml文件，内容如下:

<?xml version="1.0" encoding="utf-8"?>
<inset xmlns:android="http://schemas.android.com/apk/res/android"
    android:insetLeft="16dp"
    android:insetTop="16dp"
    android:insetRight="16dp"
    android:insetBottom="16dp">
    <shape android:shape="rectangle">
        <corners android:radius="?dialogCornerRadius" />
        <solid android:color="?android:colorBackground" />
    </shape>
</inset>