Android broadcast,

Android broadcast,

Normal broadcast:

1. Configure the broadcast receiver in AndroidManifest. xml:

<Cycler android: name = "com. example. toast. mybroadcasted Er">
<Intent-filter>
<Action android: name = "MyBroad"/>
</Intent-filter>
</Cycler>

2. A BroadcastReceiver object must be inherited.

3. Pass the message through the intent Method

4. Call the sendBroadcast (intent) method of context.

Ordered broadcast: Like conventional broadcast, ordered broadcast has a priority and requires multiple receivers. Messages delivered can be terminated at any location or added at any location, howeverPacket () transmission,

For example:

Bundle bundle = new Bundle ();
Bundle. putString ("mes2", "01 received ");
SetResultExtras (bundle );

The receiver must use Bundle bundle = getResultExtras (true) to receive messages in the package.

System broadcast:

Notification ):

1. Three main categories involved:

Notification. builder is used to set dynamic Notification attributes.

Icationicationmanager mainly displays notifications and cancels the display.

Attributes of Notification settings

2. send Notification

1) Call the getSystemService (icationication_service) method to obtain the NotificationManager service of the system.

2). Create a Notification object

3). Set Notification Properties

4). send Notification through icationicationmanager

5). Send notify to cancel