Merge "fix launcher crash when accessing Notification dots in home settings"...

import android.app.AlertDialog;

import android.app.Dialog;

import android.app.DialogFragment;

import android.content.ComponentName;

import android.content.Context;

import android.content.DialogInterface;

import android.util.AttributeSet;

import android.view.View;

import androidx.fragment.app.DialogFragment;

import androidx.preference.Preference;

import androidx.preference.PreferenceViewHolder;

import com.android.launcher3.R;

import com.android.launcher3.notification.NotificationListener;

import com.android.launcher3.util.SecureSettingsObserver;

import androidx.preference.Preference;

import androidx.preference.PreferenceViewHolder;

/**

 * A {@link Preference} for indicating notification dots status.

 * Also has utility methods for updating UI based on dots status changes.