Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
268 views
in Technique[技术] by (71.8m points)

android - Back Arrow and Overflow Icons Wrong Color in Pre-Lollipop Devices After Updating to Support Library 23.2.0

On pre-Lollipop devices, the overflow menu icon and back button on actionbar changed to black color after upgrading to Support Library 23.2.0. They are white (which is the right color) before the upgrade.

The correct color is: enter image description here

The wrong color appears for pre-Lollipop devices after the upgrade, as shown with the overflow menu icon:

enter image description here

The theme in sytle.xml (pre-v21/Lollipop):

<resources xmlns:android="http://schemas.android.com/apk/res/android" >
    <!--Used on the application level by the manifest.-->
    <style name="app_theme" parent="Theme.AppCompat.Light.DarkActionBar">
        <item name="colorPrimary">@color/app_primary_colour</item>
        <item name="colorPrimaryDark">@color/app_primary_dark_colour</item>
        <item name="colorAccent">@color/app_accent_colour</item>
        <item name="android:windowBackground">@color/app_background</item>
        <item name="searchViewStyle">@style/custom_search_view_style</item>
    </style>

    <!--Used by activities.-->
    <style name="app_theme.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
    </style>

    <!--TODO: What are these?-->
    <style name="app_theme.app_bar_overlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
    <style name="app_theme.popup_overlay" parent="ThemeOverlay.AppCompat.Light" /> ... ... </resources>

I have looked here and here but didn't fix the issue.

UPDATE: Also see this Google bug report: https://code.google.com/p/android/issues/detail?id=201918

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

I could fix.

I found that AppCompat theme is using following resource for overflow button: abc_ic_menu_overflow_material.xml

Content of this resource is:

<vector xmlns:android="http://schemas.android.com/apk/res/android"
        android:width="24dp"
        android:height="24dp"
        android:viewportWidth="24.0"
        android:viewportHeight="24.0"
        android:tint="?attr/colorControlNormal">
    ...
</vector>

Then, I connected the dots:

  • First: It is using colorControlNormal
  • Second: It is using vector

HOW TO FIX

According to Library V23.2.0 Release notes (LINK HERE), we have to update build.gradle to add support to Vector:

build.gradle

Add following lines to your build gradle

Gradle 2.0 (I did not tested):

android {  
    defaultConfig {  
        vectorDrawables.useSupportLibrary = true  
    }  
}  

Gradle 1.5 (I'm using this.. it works):

android {  
    defaultConfig {  
        generatedDensities = []  
    }  

    aaptOptions {  
        additionalParameters "--no-version-vectors"  
    }  
}  

Fixing your theme

This step may be ignored. Some base themes already set colorControlNormal to white (such as AppCompat.Dark.ActionBar).

However, in my case, all button colors remained black and I had to add the colorControlNormal to my theme and override it with white color.

<style name="AppTheme" parent="Theme.AppCompat.NoActionBar">
    <item name="colorControlNormal">@color/white</item>
</styel>

I hope this can help you.

This was how I fixed my issue.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...