材料设计透明ActionBar

Question

我想知道是否有人知道如何使用透明操作栏进行活动,就像您在访问应用页面时在新的Google Play商店中所拥有的那样.

我不关心滚动和从透明变成纯色背景,我只需要动作栏透明.

谢谢.

Answer 1

<item name="colorPrimary">@android:color/transparent</item> 

以上情况将导致Lollipop设备异常.colorPrimary必须是不透明的.

时尚的动作栏使用风格:

<style name="ThemeActionBar"
        parent="Widget.AppCompat.Light.ActionBar.Solid">
        <item name="android:background">@null</item>
        <!-- Support library compatibility -->
        <item name="background">@null</item>
</style>

在您的主题中,只需包括:

<item name="android:actionBarStyle">@style/ThemeActionBar</item>
<item name="android:windowActionBarOverlay">true</item>
<!-- Support library compatibility -->
<item name="actionBarStyle">@style/ThemeActionBar</item>
<item name="windowActionBarOverlay">true</item>

Answer 2

您只需要在您的应用主题上<item name="colorPrimary">@android:color/transparent</item>设置windowActionBarOverlay为true,如下所示:

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light">
        <item name="android:textColorPrimary">@color/my_text_color</item>
        <item name="colorPrimary">@android:color/transparent</item>
        <item name="windowActionBarOverlay">true</item>
    </style>

</resources>

最终结果应如下所示:

Answer 3

1)将AppBarLayout高程属性设置为0dp.

应用:海拔= "0dp"

2)将Toolbar背景颜色设置为透明.

机器人:背景="@机器人:彩色/透明"

整个xml如下所示:

<android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/AppTheme.AppBarOverlay"
    app:elevation="0dp">

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

        ......

    </android.support.v7.widget.Toolbar>
</android.support.design.widget.AppBarLayout>

Answer 4

透明动作栏

价值观/ styles.xml:

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

<style name="AppTheme.ActionBar.Transparent" parent="AppTheme">
    <item name="android:windowContentOverlay">@null</item>
    <item name="windowActionBarOverlay">true</item>
    <item name="colorPrimary">@android:color/transparent</item>
</style>

<style name="AppTheme.ActionBar" parent="AppTheme">
    <item name="windowActionBarOverlay">false</item>
    <item name="colorPrimary">@color/default_yellow</item>
</style>

值-V21/styles.xml:

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

<style name="AppTheme.ActionBar.Transparent" parent="AppTheme">
    <item name="colorPrimary">@android:color/transparent</item>
</style>

<style name="AppTheme.ActionBar" parent="AppTheme">
    <item name="colorPrimaryDark">@color/bg_colorPrimaryDark</item>
    <item name="colorPrimary">@color/default_yellow</item>
</style>

在AndroidManifest.xml中使用这些主题来指定哪些活动将具有透明或彩色的ActionBar

<activity
            android:name=".MyTransparentActionbarActivity"
            android:theme="@style/AppTheme.ActionBar.Transparent"/>

    <activity
            android:name=".MyColoredActionbarActivity"
            android:theme="@style/AppTheme.ActionBar"/>

Answer 5

这对我有用

getWindow().setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION, WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);   
getSupportActionBar().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));

Answer 6

<style name="AppTheme" parent="Theme.MaterialComponents">
    <item name="android:navigationBarColor" tools:targetApi="lollipop">@color/color_primary
    </item>
    <item name="android:statusBarColor" tools:targetApi="lollipop">@color/color_primary</item>
    <item name="colorPrimary">@color/color_primary</item>
    <item name="colorPrimaryDark">@color/color_primary_dark</item>
    <item name="colorAccent">@color/color_accent</item>
</style>

<style name="MainTheme" parent="AppTheme">
    <item name="actionBarStyle">@style/MyTheme.ActionBar</item>
    <item name="android:windowTranslucentStatus">true</item>
    <item name="android:windowTranslucentNavigation">true</item>
</style>

<style name="MyTheme.ActionBar" parent="Widget.AppCompat.ActionBar">
    <item name="elevation" tools:targetApi="lollipop">0dp</item>
    <item name="background">@color/semi_transparent</item>
</style>
</resources>


<resources>
<color name="color_primary">#212121</color>
<color name="color_primary_dark">@android:color/black</color>
<color name="color_accent">#4285F4</color>
<color name="semi_transparent">#66000000</color>
</resources>