SettingsAppearanceFragment.java 文件源码

@Override
public void onCreate(Bundle onSavedInstanceState) {
    super.onCreate(onSavedInstanceState);
    addPreferencesFromResource(R.xml.settings_appearance);
    mPreferenceManager = this.getPreferenceManager();

    mStartUpScreenPreference = (ListPreference) mPreferenceManager.findPreference("preference_key_startup_screen");
    mStartUpScreenPreference.setOnPreferenceChangeListener((preference, o) -> {
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        builder.setTitle(R.string.restart_app);
        builder.setMessage(R.string.restart_app_des);
        builder.setPositiveButton(R.string.ok, (dialogInterface, i) -> {
            dialogInterface.dismiss();
            Intent intent = getActivity().getBaseContext().getPackageManager().getLaunchIntentForPackage(getActivity().getBaseContext().getPackageName());
            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
            intent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
            getActivity().finish();
            startActivity(intent);
        });
        builder.setNegativeButton(R.string.cancel, (dialogInterface, i) -> dialogInterface.dismiss());
        builder.create().show();

        return true;
    });


}