切换到浅色模式时应用程序崩溃

Question

In my main activity I'm attaching two fragments and using tablayout. Whenever I change light to dark or dark to light, I'm getting this error enter image description here

    Process: com.umobi.scantags, PID: 24666
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.umobi.scantags/com.umobi.scantags.activities.MainActivity}: androidx.fragment.app.Fragment$InstantiationException: Unable to instantiate fragment com.umobi.scantags.fragments.DeactiveFragment: could not find Fragment constructor

and the error is showing in the onCreate() of super.onCreate(savedInstanceState) main activity.

Answer 1

Unable to instantiate fragment com.umobi.scantags.fragments.DeactiveFragment: could not find Fragment constructor

Your DeactiveFragment needs a zero-argument constructor, or alternatively you need to register a FragmentFactory that instantiates the fragment without a zero-arg constructor.