Java tutorial
/** * Copyright (C) 2014 Open Whisper Systems * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.tingtingapps.securesms; import android.app.Activity; import android.app.Dialog; import android.content.DialogInterface; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.v4.app.DialogFragment; import com.afollestad.materialdialogs.MaterialDialog; import com.google.android.gms.common.GooglePlayServicesUtil; public class PlayServicesProblemFragment extends DialogFragment { @Override public @NonNull Dialog onCreateDialog(@NonNull Bundle bundle) { int code = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getActivity()); Dialog dialog = GooglePlayServicesUtil.getErrorDialog(code, getActivity(), 9111); if (dialog == null) { return new MaterialDialog.Builder(getActivity()).negativeText(android.R.string.ok) .content(getActivity().getString( R.string.PlayServicesProblemFragment_the_version_of_google_play_services_you_have_installed_is_not_functioning)) .build(); } else { return dialog; } } @Override public void onCancel(DialogInterface dialog) { super.onCancel(dialog); finish(); } @Override public void onDismiss(DialogInterface dialog) { super.onDismiss(dialog); finish(); } private void finish() { Activity activity = getActivity(); if (activity != null) activity.finish(); } }