Android Open Source - DashClockWidget Help Utils

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright 2013 Google Inc./*from ww w.ja va  2 s  . co m*/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.android.apps.dashclock;

import net.nurik.roman.dashclock.R;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.content.DialogInterface;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.text.Html;
import android.text.method.LinkMovementMethod;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.TextView;

/**
 * Helper class for showing about dialogs and what not.
 */
public class HelpUtils {

    public static void showAboutDialog(Activity activity) {
        FragmentManager fm = activity.getFragmentManager();
        FragmentTransaction ft = fm.beginTransaction();
        Fragment prev = fm.findFragmentByTag("dialog_about");
        if (prev != null) {
            ft.remove(prev);
        }
        ft.addToBackStack(null);

        new AboutDialog().show(ft, "dialog_about");
    }

    public static class AboutDialog extends DialogFragment {

        private static final String VERSION_UNAVAILABLE = "N/A";

        public AboutDialog() {
        }

        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {
            // Get app version
            PackageManager pm = getActivity().getPackageManager();
            String packageName = getActivity().getPackageName();
            String versionName;
            try {
                PackageInfo info = pm.getPackageInfo(packageName, 0);
                versionName = info.versionName;
            } catch (PackageManager.NameNotFoundException e) {
                versionName = VERSION_UNAVAILABLE;
            }

            // Build the about body view and append the link to see OSS licenses
            LayoutInflater layoutInflater = getActivity().getLayoutInflater();
            View rootView = layoutInflater.inflate(R.layout.dialog_about, null);
            TextView nameAndVersionView = (TextView) rootView.findViewById(
                    R.id.app_name_and_version);
            nameAndVersionView.setText(Html.fromHtml(
                    getString(R.string.app_name_and_version, versionName)));

            TextView aboutBodyView = (TextView) rootView.findViewById(R.id.about_body);
            aboutBodyView.setText(Html.fromHtml(getString(R.string.about_body)));
            aboutBodyView.setMovementMethod(new LinkMovementMethod());

            return new AlertDialog.Builder(getActivity())
                    .setView(rootView)
                    .setPositiveButton(R.string.close,
                            new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog, int whichButton) {
                                    dialog.dismiss();
                                }
                            }
                    )
                    .create();
        }
    }
}

Java Source Code List

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