如何将主题应用于Android工具栏？

Question

我花了大量的时间试图弄清楚如何将一些简单的样式应用到工具栏,但我完全被难倒了.具体来说,我想更改标题和副标题的颜色以及溢出菜单图标(三个点).我可以在布局中成功设置文本颜色,但不能在主题中设置,我不知道为什么.

    <android.support.v7.widget.Toolbar
    theme="@style/Toolbar"
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="@color/orange"
    app:popupTheme="@style/AppTheme.PopupOverlay"
    />

styles.xml:

    <style name="Toolbar" parent="Widget.AppCompat.Toolbar">
    <item name="titleTextStyle">@style/ToolbarTitle</item>
    <item name="titleTextAppearance">@style/ToolbarTitleTextAppearance</item>
    <item name="popupTheme">@style/AppTheme.PopupOverlay</item>
</style>

<style name="ToolbarTitle" parent="Base.TextAppearance.Widget.AppCompat.Toolbar.Title">
    <item name="titleTextAppearance">@style/ToolbarTitleTextAppearance</item>
    <item name="android:textColor">#FF0000</item>
</style>

<style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light">
</style>

PopupOverlay主题应用于溢出菜单弹出窗口,因此工具栏主题显然正在应用,但TextAppearance不起作用,文本仍然是黑色.我尝试了各种各样的替代形式但没有快乐.当我尝试某些东西并且它不起作用时,我不知道从哪里开始寻找理解原因.有关调试此类问题的提示是受欢迎的!失去几个小时到非常简单的UI样式变化是非常令人沮丧的,但布局,样式,主题和AppCompat的多个方面让我完全混淆和猜测.

Answer 1

以下应该适合你:

styles.xml

<style name="Base_ToolbarStyle">
    <item name="popupTheme">@style/ThemeOverlay.AppCompat.Light</item>
    <item name="android:background">?colorPrimary</item>
    <item name="android:theme">@style/Base_ToolbarTheme</item>
    <item name="titleTextAppearance">@style/CustomTitleTextAppearance</item>
    <item name="subtitleTextAppearance">@style/CustomSubTitleTextAppearance</item>
</style>

<style name="Base_ToolbarTheme">
    <!-- Color used for the title of the Toolbar - as long as not overridden -->
    <item name="android:textColorPrimary">@color/pink_500_primary</item>
    <!-- Used to color back button and three dots -->
    <item name="android:textColorSecondary">@color/yellow_500_primary</item>
</style>

<style name="CustomTitleTextAppearance" parent="TextAppearance.Widget.AppCompat.Toolbar.Title">
    <item name="android:fontFamily">@string/ff_roboto_condensed</item>
    <item name="android:textSize">16sp</item>
    <item name="android:textColor">@color/amber_500_primary</item>
    <item name="android:textStyle">bold</item>
</style>

<style name="CustomSubTitleTextAppearance" parent="TextAppearance.Widget.AppCompat.Toolbar.Subtitle">
    <item name="android:fontFamily">@string/ff_roboto_condensed</item>
    <item name="android:textSize">14sp</item>
    <item name="android:textColor">@color/pink_500_primary</item>
    <item name="android:textStyle">italic</item>
</style>

layout.xml

<android.support.v7.widget.Toolbar
    android:id="@+id/toolbar"
    style="@style/Base_ToolbarStyle"
    android:layout_width="match_parent"
    android:layout_height="?actionBarSize"
    android:elevation="4dp" />

结果:

注意:我故意将这种风格视为丑陋.<

那你怎么弄清楚这一点.好吧,如果textAppearances你只是看看父类,例如TextAppearance.Widget.AppCompat.Toolbar.Title.你最终会找到这样的东西:

<style name="TextAppearance.Material.Widget.ActionBar.Title"
       parent="TextAppearance.Material.Title">
    <item name="textSize">@dimen/text_size_title_material_toolbar</item>
    <item name="textColor">?attr/textColorPrimary</item>
</style>

再次单击父级会显示以下内容:

<style name="TextAppearance.Material">
    <item name="textColor">?attr/textColorPrimary</item>
    <item name="textColorHint">?attr/textColorHint</item>
    <item name="textColorHighlight">?attr/textColorHighlight</item>
    <item name="textColorLink">?attr/textColorLink</item>
    <item name="textSize">@dimen/text_size_body_1_material</item>
    <item name="fontFamily">@string/font_family_body_1_material</item>
</style>

总而言之,我们知道我们现在可以调整的所有属性.将样式应用于Toolbar主题而不是主题或多或少是一些试错过程的结果.;)