Android: NullPointerException после изменения шрифта устройства?

Question

Например, у меня есть два действия HomeScreen и PostListScreen.

Шаги 1. Перейдите с HomeScreen на PostListScreen. 2. сверните приложение 3. Зайдите в настройки системы и увеличьте / уменьшите шрифт. 4. Снова откройте приложение

Теперь я получаю сообщение об ошибке ниже.

java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.LinearLayout.setVisibility(int)' on a null object reference
        at *package**activity*.isVisible(*activity*.java:505)
        at *package**activity*.searchData(*activity*.java:487)
        at *package**activity*$3.onTextChanged(*activity*.java:191)
        at android.widget.TextView.sendOnTextChanged(TextView.java:9786)
        at android.widget.TextView.setText(TextView.java:5765)
        at android.widget.TextView.setText(TextView.java:5603)
        at android.widget.EditText.setText(EditText.java:122)
        at android.widget.TextView.setText(TextView.java:5560)
        at android.widget.TextView.onRestoreInstanceState(TextView.java:5428)
        at android.view.View.dispatchRestoreInstanceState(View.java:18751)
        at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:3831)
        at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:3831)
        at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:3831)
        at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:3831)
        at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:3831)
        at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:3831)
        at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:3831)
        at android.view.View.restoreHierarchyState(View.java:18729)
        at com.android.internal.policy.PhoneWindow.restoreHierarchyState(PhoneWindow.java:2171)
        at android.app.Activity.onRestoreInstanceState(Activity.java:1135)
        at android.app.Activity.performRestoreInstanceState(Activity.java:1090)
        at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1338)
        at android.app.ActivityThread.handleStartActivity(ActivityThread.java:3077)
        at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:180)
        at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:165)
        at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:142)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:70)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1906)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:6863)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:537)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

Таким образом, в основном все ссылки [LinearLayout,RecyclerView e.t.c] получают значение null .

Я потратил часы на Google / StackOverflow / Git и т. Д. Для этого, но не смог найти решение для этого.

App Config

    compileSdkVersion 27
    minSdkVersion 19
    targetSdkVersion 27
    multiDexEnabled true