通知 Notification
Notification,通知栏,在手机的最上面一行。在上面可以设置图片,文字。可以伴随出现声音,震动。下拉出现通知的菜单,有通知的标题,内容提示,等。点击出现通知要去的页面。
import android.app.Notification;
import android.app.NotificationManager;
一,获取通知资源
NotificationManager mNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
二,实例化一个通知
Notification notification = new Notification(icon, tickerText, when);
参数来源:
通知栏上的图片icon: int icon = R.drawable.icon;
通知栏上的文字tickText: CharSquence tickerText = “hello”;
显示的时间when: long when = System.currentTimeMillis();
三,设置通知菜单上的内容和通知要去的页面。
notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
参数来源:
the context for you Activity/Application: Context context = getApplicationContext();
通知标题:CharSequence contentTitle = "My notification";
通知内容提示:CharSequence contentText = "Hello World!";
要去的页面:Intent notificationIntent = new Intent(this, MyClass.class);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
四,发出通知。
mNotificationManager.notify(HELLO_ID, notification);
参数来源:
通知Id: int HELLO_ID = 1; 也可设置为某个xml的id;int HELLO_ID = R.layout.id.hello;
通知:Notification notification参见步骤二。
另,清除通知: mNotificationManager.cancel(HELLO_ID);
拓展:
设置通知的声音,震动,闪光:
notification.defaults |= Notification.DEFAULT_SOUND;
notification.sound = Uri.parse("file:///sdcard/notification/ringer.mp3");
notification.sound = Uri.withAppendedPath(Audio.Media.INTERNAL_CONTENT_URI, "6");
震动:
设置权限<uses-permission android:name="android.permission.VIBRATE" />
notification.defaults |= Notification.DEFAULT_VIBRATE;
long[] vibrate = {0,100,200,300};
notification.vibrate = vibrate;
光:
notification.defaults |= Notification.DEFAULT_LIGHTS;
notification.ledARGB = 0xff00ff00;
notification.ledOnMS = 300;
notification.ledOffMS = 1000;
notification.flags |= Notification.FLAG_SHOW_LIGHTS;

浙公网安备 33010602011771号