App crash after device rotation

[TomasValenta]

Hello again Patrice,

after removing android:screenOrientation="portrait" from AndroidManifest, the app crashes after device rotation:

java.lang.RuntimeException: Unable to start activity ComponentInfo{ch.swissonid.design_samples/ch.swissonid.design_lib_sample.DrawerActivity}: java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState

I found some infos (Source 1, Source 2), do you have some experience with this problem?

[TomasValenta]

Simple fix can be android:configChanges="orientation|screenSize"

<activity
    android:name=".DrawerActivity"
    android:label="@string/app_name"
    android:configChanges="orientation|screenSize
    >
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />

        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
</activity>

in AndroidManifest file, but I am not sure with all consequences with this option.