With the new PreferenceFragmentCompat from the v7 Preference Support Library: http://developer.android.com/tools/support-library/features.html#v7-preference, I get this error
E java.lang.IllegalStateException: Must specify preferenceTheme in theme
E at android.support.v7.preference.PreferenceFragmentCompat.onCreate(PreferenceFragmentCompat.java:202)
What theme should be set?
Update: I have tried using
<item name="preferenceTheme">@style/PreferenceThemeOverlay</item>
as suggested by @Bogato but it doesn't look right and looks very Holo even on Lollipop.
Support library:
Native preferences:
The bugfix is available as a gradle dependency
Now one can use the library pretty easy. Here are quickest way to do so, but you should check out the README for more info.
1. Update your module's gradle file:
compile 'com.takisoft.fix:preference-v7:27.0.0.0'
2. Use the appropriate class as your fragment's base
You can use either PreferenceFragmentCompat or PreferenceFragmentCompatDividers.
(Watch out for the appropriate package name when importing PreferenceFragmentCompat!)
3. Use the appropriate theme
Set your containing Activity's theme to a variant of @style/PreferenceFixTheme, like NoActionBar, Light, etc.
For more info and usage tips, go to the project's page.
P.S. In this section you could find the detailed solution that led to creation of the library, but I decided to remove it because it might be confusing. If you're curious about the steps, you can still find them in the revision history of this answer.
You have to specify preferenceTheme in your preference activity's theme.
For example :
<style name="SettingsTheme" parent="Theme.AppCompat.NoActionBar">
<item name="preferenceTheme">@style/PreferenceThemeOverlay</item>
</style>
PreferenceThemeOverlay is the default theme which comes with preference-v7 support library.
Seems like Google fixed this issue. I've tested this with the preference v14-support version 25.3.1
1) Add implementation 'com.android.support:preference-v14:25.3.1' to your Gradle.
2) Add PreferenceThemeOverlay.v14.Material to the style instead of PreferenceThemeOverlay.
<style name="AppTheme.SettingsTheme" parent="AppTheme.NoActionBar">
<item name="preferenceTheme">@style/PreferenceThemeOverlay.v14.Material</item>
</style>
3) Finally, add the style to the Manifest
android:theme="@style/AppTheme.SettingsTheme"
To use the PreferenceFragmentCompat you have to set preferenceTheme in your theme:
<style name="AppTheme" parent="@style/Theme.AppCompat.Light">
...
<item name="preferenceTheme">@style/PreferenceThemeOverlay</item>
</style>
In this way you can customize the preferenceTheme to style the layouts used for each preference type without affecting other parts of your Activity.
I just added this line in theme and it working perfect on API 19 and above.
<item name="preferenceTheme">@style/PreferenceThemeOverlay.v14.Material</item>
Solution that worked for me in API 25. I had this default theme:
<style name="AppTheme.NoActionBar" parent="Theme.AppCompat.Light.NoActionBar">
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
And added this line to it
<style name="AppTheme.NoActionBar" parent="Theme.AppCompat.Light.NoActionBar">
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
<item name="preferenceTheme">@style/PreferenceThemeOverlay</item>
</style>
PreferenceThemeOverlay was was already defined, I didn't have to include it. It worked on Android 4.x and 5.x devices of my own
Add this code to your styles.xml and modify it according. It should work fine.
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
<item name="preferenceTheme">@style/PreferenceThemeOverlay</item>
</style>
<style name="PreferenceThemeOverlay">
<item name="preferenceScreenStyle">@style/Preference.PreferenceScreen</item>
<item name="preferenceFragmentStyle">@style/PreferenceFragment</item>
<item name="preferenceCategoryStyle">@style/Preference.Category</item>
<item name="preferenceStyle">@style/Preference</item>
<item name="preferenceInformationStyle">@style/Preference.Information</item>
<item name="checkBoxPreferenceStyle">@style/Preference.CheckBoxPreference</item>
<item name="switchPreferenceCompatStyle">@style/Preference.SwitchPreferenceCompat</item>
<item name="dialogPreferenceStyle">@style/Preference.DialogPreference</item>
<item name="editTextPreferenceStyle">@style/Preference.DialogPreference.EditTextPreference</item>
<item name="preferenceFragmentListStyle">@style/PreferenceFragmentList</item>
</style>
I added the "preferenceTheme" item into my style and that seemed to fix the issue:
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:actionBarStyle">@style/MyActionBarTheme</item>
<item name="colorPrimary">@color/ColorPrimary</item>
<item name="colorPrimaryDark">@color/ColorPrimaryDark</item>
<item name="preferenceTheme">@style/Preference</item>
</style>
The most helpful site for me: Medium
Author shows that we need to add two packages: com.android.support:preference-v7 and com.android.support:preference-v14, because the first one it being distributed without styles.
Let me know if it works
The accepted "Takisoft Fix" seems rather kludgy and after playing around with it, I am still not satisfied with the resulting look.
If you need API 9+ PreferenceFragment support library, I recommend using Material Preference Support Library.
It works perfectly (at least for me).
The problem occurs because the AAPT(Android Asset Packaging Tool) cannot find some resources. Fix this issue as follows:
1.Copy resources which are necessary to a new responding resource folder, named like res_fw_v7_preference or something else.
2.Using gradle to build your application and add some additional AAPT options in build.gradle(module's) like this:
android {
...
aaptOptions {
additionalParameters '-S',
'src/main/res_fw_v17_leanback', // resources in frameworks/support/v17/leanback
'-S',
'src/main/res_fw_v7_preference', // resources in frameworks/support/v7/preference
'-S',
'src/main/res_fw_v14_preference', // resources in frameworks/support/v14/preference
'-S',
'src/main/res_fw_v17_preference-leanback', // resources in frameworks/support/v17/preference-leanback
'-S',
'src/main/res_fw_v7_appcompat', // resources in frameworks/support/v7/appcompat
'-S',
'src/main/res_fw_v7_recyclerview', // resources in frameworks/support/v7/recyclerview
'-S',
'src/main/res', // resources in your application
'--auto-add-overlay',
'--extra-packages',
'android.support.v17.leanback:android.support.v7.preference:android.support.v14.preference:android.support.v17.preference:android.support.v7.appcompat:android.support.v7.recyclerview'
noCompress 'foo', 'bar'
ignoreAssetsPattern '!.svn:!.git:!.ds_store:!*.scc:.*:<dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~'
}
...
}
Hope this is helpful:)
Thanks @sergio for answer, using <item name="preferenceTheme">@style/PreferenceThemeOverlay.v14.Material</item> instead of <item name="preferenceTheme">@style/Preference</item> works great for me.
<style name="IntentTheme" parent="Theme.AppCompat">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
<item name="android:actionModeBackground">@color/fulltransparent</item>
<item name="preferenceTheme">@style/PreferenceThemeOverlay.v14.Material</item>
Just let it go and use API 11+.
API 7 is almost seven years old now.
来源：https://stackoverflow.com/questions/32070670/preferencefragmentcompat-requires-preferencetheme-to-be-set