1.首先,获取系统的通知服务:
NotificationManager nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
2.发送一个最简单的通知
- public void simpleNotice(View view) {
- //此Builder为android.support.v4.app.NotificationCompat.Builder中的,下同。
- Builder mBuilder = new Builder(this);
- //系统收到通知时,通知栏上面显示的文字。
- mBuilder.setTicker(天津,晴,2~15度,微风);
- //显示在通知栏上的小图标
- mBuilder.setSmallIcon(R.drawable.consult_answer);
- //通知标题
- mBuilder.setContentTitle(天气预报);
- //通知内容
- mBuilder.setContentText(天津,晴,2~15度,微风);
- //设置大图标,即通知条上左侧的图片(如果只设置了小图标,则此处会显示小图标)
- mBuilder.setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.share_sina));
- //显示在小图标左侧的数字
- mBuilder.setNumber(6);
- //设置为不可清除模式
- mBuilder.setOngoing(true);
- //显示通知,id必须不重复,否则新的通知会覆盖旧的通知(利用这一特性,可以对通知进行更新)
- nm.notify(1, mBuilder.build());
- }
3.删除一个通知。参数即为通知的idnm.cancel(1);
4.发送一个通知,点击通知后跳转到一个Activity,从这个Activity返回后,进入程序内的某一个页面(一般为主页)
- //点击通知进入一个Activity,点击返回时进入指定页面。
- public void resultActivityBackApp(View view) {
- Builder mBuilder = new Builder(this);
- mBuilder.setTicker(通知标题2);
- mBuilder.setSmallIcon(R.drawable.ic_launcher);
- mBuilder.setContentTitle(通知标题2);
- mBuilder.setContentText(点击通知进入一个Activity,点击返回时进入指定页面。);
- //设置点击一次后消失(如果没有点击事件,则该方法无效。)
- mBuilder.setAutoCancel(true);
- //点击通知之后需要跳转的页面
- Intent resultIntent = new Intent(this, ResultActivityBackApp.class);
- //使用TaskStackBuilder为“通知页面”设置返回关系
- TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
- //为点击通知后打开的页面设定 返回 页面。(在manifest中指定)
- stackBuilder.addParentStack(ResultActivityBackApp.class);
- stackBuilder.addNextIntent(resultIntent);
- PendingIntent pIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
- mBuilder.setContentIntent(pIntent);
- // mId allows you to update the notification later on.
- nm.notify(2, mBuilder.build());
- }
同时,需要在manifest中为点击通知后打开的Activity指定父Activity.
(其中,activity的属性parentActivityName为API 16中的属性,meta-data中的代码为兼容API 16以下。因此,对于大多数程序,这两个地方都得写。)
5.和上述4类似,只是在打开的Activity中返回时回到home页
- //点击通知进入一个Activity,点击返回时回到桌面
- public void resultActivityBackHome(View view) {
- Builder mBuilder = new Builder(this);
- mBuilder.setTicker(通知标题3);
- mBuilder.setSmallIcon(R.drawable.ic_launcher);
- mBuilder.setContentTitle(通知标题3);
- mBuilder.setContentText(点击通知进入一个Activity,点击返回时回到桌面);
- //设置点击一次后消失(如果没有点击事件,则该方法无效。)
- mBuilder.setAutoCancel(true);
- Intent notifyIntent = new Intent(this, ResultActivityBackHome.class);
- notifyIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
- PendingIntent pIntent = PendingIntent.getActivity(this, 0, notifyIntent, PendingIntent.FLAG_UPDATE_CURRENT);
- mBuilder.setContentIntent(pIntent);
- nm.notify(3, mBuilder.build());
- }
6.带进度条的通知
- public void progressNotice(View view) {
- final Builder mBuilder = new Builder(this);
- mBuilder.setTicker(通知标题4);
- mBuilder.setContentTitle(Picture Download)
- .setContentText(Download in progress)
- .setSmallIcon(R.drawable.ic_launcher);
- // Start a lengthy operation in a background thread
- new Thread(new Runnable() {
- @Override
- public void run() {
- int progress;
- for (progress = 0; progress <= 100; progress++) {
- // Sets the progress indicator to a max value, the current completion percentage,
- // and determinate state
- mBuilder.setProgress(100, progress, false);
- //不明确进度的进度条
- // mBuilder.setProgress(0, 0, true);
- nm.notify(4, mBuilder.build());
- // 模拟延时
- try {
- Thread.sleep(200);
- } catch (InterruptedException e) {
- e.printStackTrace();
- }
- }
- // When the loop is finished, updates the notification
- mBuilder.setContentText(Download complete);
- // Removes the progress bar
- mBuilder.setProgress(0, 0, false);
- nm.notify(4, mBuilder.build());
- }
- }
- ).start();
- }
7.扩展布局的通知。按住通知条下滑,可以查看更详细的内容
- public void expandLayoutNotice(View view) {
- Builder mBuilder = new Builder(this);
- mBuilder.setTicker(通知标题5);
- mBuilder.setSmallIcon(R.drawable.ic_launcher);
- mBuilder.setContentTitle(通知标题5);
- mBuilder.setContentText(按住通知下拉可显示扩展布局);
- NotificationCompat.InboxStyle inboxStyle = new NotificationCompat.InboxStyle();
- String[] events = new String[]{Beijing, Tianjin, Shanghai, Guangzhou};
- // 设置扩展布局的标题
- inboxStyle.setBigContentTitle(Event tracker details:);
- for (String s : events) {
- inboxStyle.addLine(s);
- }
- mBuilder.setStyle(inboxStyle);
- nm.notify(5, mBuilder.build());
- }
- //自定义布局的通知
- public void customLayoutNotice(View view) {
- Builder mBuilder = new Builder(this);
- mBuilder.setTicker(通知标题6);
- mBuilder.setTicker(通知标题6);
- mBuilder.setSmallIcon(R.drawable.ic_launcher);
- RemoteViews remoteViews = new RemoteViews(getPackageName(), R.layout.custom_layout_notice);
- mBuilder.setContent(remoteViews);
- //为RemoteViews上的按钮设置文字
- remoteViews.setCharSequence(R.id.custom_layout_button1, setText, Button1);
- remoteViews.setCharSequence(R.id.custom_layout_button2, setText, Button2);
- //为RemoteViews上的按钮设置点击事件
- Intent intent1 = new Intent(this, CustomLayoutResultActivity.class);
- intent1.putExtra(content, From button1 click!);
- PendingIntent pIntentButton1 = PendingIntent.getActivity(this, 0, intent1, PendingIntent.FLAG_UPDATE_CURRENT);
- remoteViews.setOnClickPendingIntent(R.id.custom_layout_button1, pIntentButton1);
- Intent intent2 = new Intent(this, CustomLayoutResultActivity.class);
- intent2.putExtra(content, From button2 click!);
- PendingIntent pIntentButton2 = PendingIntent.getActivity(this, 1, intent2, PendingIntent.FLAG_UPDATE_CURRENT);
- remoteViews.setOnClickPendingIntent(R.id.custom_layout_button2, pIntentButton2);
- nm.notify(6, mBuilder.build());
- }
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