CODEWITHSUNDEEP
androidandroid-themeandroid-appcompatmaterial-design
Lior Iluz
Lior Iluz

Reputation: 26563

Material Design support below Lollipop - crashes

I've been trying to implement the Material Design theme, following these instructions.

My styles.xml:

<style name="AppBaseTheme" parent="@style/Theme.AppCompat">
    <item name="actionBarStyle">@style/MyActionBar</item>
</style>

<!-- Application theme. -->
<style name="AppTheme" parent="AppBaseTheme">
    <!-- All customizations that are NOT specific to a particular API-level can go here. -->

</style>

<style name="MyActionBar" parent="@style/Widget.AppCompat.ActionBar.Solid">
     <item name="displayOptions">useLogo|showHome</item>
    <item name="logo">@drawable/home_page_logo</item>
    <item name="background">@color/actionbar_background_color</item>
    <item name="textColor">@color/white</item>
    <item name="titleTextStyle">@style/MyActionBarTextStyle</item>
</style>

No matter what I tried, the application crashes the second I launch my main activity on onCreate() with this crash log:

Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
at android.support.v7.app.ActionBarActivityDelegate.onCreate(ActionBarActivityDelegate.java:151)
 at android.support.v7.app.ActionBarActivityDelegateBase.onCreate(ActionBarActivityDelegateBase.java:138)
 at android.support.v7.app.ActionBarActivity.onCreate(ActionBarActivity.java:123)

Did anyone experience this issue? any suggestions on what might cause this?

Edit: It's definitely something in my styles.xml theme. If I force the app to use the default Theme.AppCompat theme, it works. What might cause a theme to fail? I verified the ActionBar attributes are not using "android:". Anything else?

Upvotes: 4

Views: 8022

Answers (6)

Vishwajeet Singh Shekhawat
Vishwajeet Singh Shekhawat

Reputation: 124

    I prefer  do change  in AndroidManifest.xml
    <application  
     .....


    <meta-data
        android:name="io.flutter.embedding.android.NormalTheme"
        android:resource="@style/NormalTheme"
        />


   <activity
   .....

     android:launchMode="singleTop"
        android:theme="@style/AppFullScreenTheme"
    </activity>

    </application>

Upvotes: 0

ronenfe
ronenfe

Reputation: 2415

It happened to me when I tried to import a decomplied apk from an old project I had into a new empty app. By comparing the code to a working app, I noticed my Application node is missing a theme attribute. The error message should have been better. I added a theme to the application node in the androidmanifest.xml:

    <application android:label="@string/app_name" android:icon="@drawable/ic_launcher_foreground"
    android:theme="@style/Theme.Historia">

Upvotes: 0

Femto
Femto

Reputation: 13

In my case, my themes.xml had the following:

style name="Theme.DollarBucket" parent="android:Theme.Material.Light.NoActionBar" />

for some weird reason there was an "android:" tag, removing that solved my issue.

Upvotes: 1

Lior Iluz
Lior Iluz

Reputation: 26563

SOLVED...

2 of my jar libs apparently have generated values.xml that contains styles of both AppTheme and AppBaseTheme. I verified only our dependencies modules, as jar libraries shouldn't declare application themes, specially not with the name of the default ones.

Before posting the answer, I added to my AndroidManifest.xml <application> tools:replace="android:theme" and declared the new theme, assuming it'll work and my application will override any other theme.

The solution eventually, stupid as it is, was to rename my own AppTheme and AppBaseTheme to different names and now it works. Hours spent on such a trivial fix. Hopefully, this will spare some time for others.

Upvotes: 11

Budius
Budius

Reputation: 39846

parent should be Theme.AppCompat not @style/Theme.AppCompat.

Using @style/ you'll be using the style from the Android API 21, and it must be the style from the AppCompat library.

edit:

probably same thing for the Widget.AppCompat

edit2:

like this

<style name="AppBaseTheme" parent="Theme.AppCompat">
    <item name="actionBarStyle">@style/MyActionBar</item>
</style>

<!-- Application theme. -->
<style name="AppTheme" parent="AppBaseTheme">
    <!-- All customizations that are NOT specific to a particular API-level can go here. -->

</style>

<style name="MyActionBar" parent="Widget.AppCompat.ActionBar.Solid">
     <item name="displayOptions">useLogo|showHome</item>
    <item name="logo">@drawable/home_page_logo</item>
    <item name="background">@color/actionbar_background_color</item>
    <item name="textColor">@color/white</item>
    <item name="titleTextStyle">@style/MyActionBarTextStyle</item>
</style>

Upvotes: 2

Ohad Eytan
Ohad Eytan

Reputation: 8464

Try remove the "@style/" from the first line in the styles.xml so you have: 

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

Upvotes: 1

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