Use of Notification and NotificationManager in Android

Basic Steps for using Notification:

Use of noication ication and icationicationmanager

1. Obtain the system-level service NofifiactionManager

String Service = NOFICATION_SERVICE

Icationicationmanager nm = (NotificationManager) getSystemService (Service );

2. instantiate the Notificatoin object and set its attributes:

 

Notification n = new noication ();

// Set the display icon, which will be displayed in the status bar

Int icon = R. drawable. icon;

// Set the prompt information, which will be displayed in the status bar

String tickerText = "Test icationicationmanager ";

// Display time

Long when = system. currentTimeMills ();

N. icon = icon;

N. ticker = tickerText

N. when = when

You can also use the constructor to set

Icationicationmanager nm = new NotificationManager (icon, ticker, when );

3. Call setLatestEventInfo () to set the icon and time in the view.

// Instantiate Intent

Intent intent = new Intent (this, MainActivity. class );

// Get PendingIntent

PendingIntent pi = PendingIntent. getActivity (this, 0, intent, 0 );

// Set event information

N. setLastestEventInfo (this, "my title", "my Content", pi );

4. Send a notification

. // Indicates the notification ID

Int ID = 1;

Nm. notify (ID, n );

 

 

Example: register a broadcast in an activity and use the broadcast to display the Notification .:

Package com. king. android. controls;

Import android. app. Activity;
Import android. app. Service;
Import android. content. Intent;
Import android. content. IntentFilter;
Import android. OS. Bundle;
Import android. view. View;
Import android. view. View. OnClickListener;
Import android. widget. Button;

Import com. king. android. R;

/**

* Description: initiates a broadcast.
* Author: Andy. Liu
* Time: 08:31:49
**/
Public class extends ityactiivty extends Activity {
Private static final String MY_SERVICE = "com. king. android. controls. MY_NOTIFITY_SERVICE"; // The specified Notification action.
// Declare the IPerson Interface
Private IPerson iPerson;
Private Button btn;
MyReceiver2 receiver ER = new MyReceiver2 ();

@ Override
Protected void onResume (){
Super. onResume ();
IntentFilter filter = new IntentFilter ();
// Instantiate MYReceiver2
RegisterReceiver (receiver, filter );
}
@ Override
Protected void onPause (){
Super. onPause ();
UnregisterReceiver (receiver );
}

@ Override
Protected void onCreate (Bundle savedInstanceState ){

Super. onCreate (savedInstanceState );
SetContentView (R. layout. main );
Btn = (Button) findViewById (R. id. btn_voice );
Btn. setText ("send notification ");
Btn. setVisibility (View. VISIBLE );
Btn. setOnClickListener (new OnClickListener (){

@ Override
Public void onClick (View v ){
Intent intent = new Intent ();
Intent. setAction (MY_SERVICE );
SendBroadcast (intent );
}
});
}

}

Package com. king. android. controls;

Import android. content. BroadcastReceiver;
Import android. content. Context;
Import android. content. Intent;

/**

* Description: broadcasts notifications and initiates notification events.
* Author: Andy. Liu
* Time: 08:34:20
**/
Public class equalityreciver extends BroadcastReceiver {

@ Override
Public void onReceive (Context context, Intent intent ){
Intent I = new Intent ();
I. setFlags (Intent. FLAG_ACTIVITY_NEW_TASK );
I. setClass (context, DisplayActivity. class );
Context. startActivity (I );
}

}

Package com. king. android. controls;

Import android. app. Activity;
Import android. app. Notification;
Import android. app. icationicationmanager;
Import android. app. PendingIntent;
Import android. content. Intent;
Import android. OS. Bundle;
Import android. view. View;
Import android. view. View. OnClickListener;
Import android. widget. Button;
Import android. widget. TextView;

Import com. king. android. R;

/**

* Description: displays notifications.
* Author: Andy. Liu
* Time: 08:36:31
**/
Public class DisplayActivity extends Activity {
Public static final int NOFITY_ID = 100;
@ Override
Protected void onCreate (Bundle savedInstanceState ){

Super. onCreate (savedInstanceState );
String Service = icationication_service;
Final NotificationManager nm = (NotificationManager) getSystemService (Service );
SetContentView (R. layout. main );

TextView TV = (TextView) findViewById (R. id. TV _info );
TV. setVisibility (View. VISIBLE );
Button btnCancel = (Button) findViewById (R. id. btn_voice );
BtnCancel. setVisibility (View. VISIBLE );
BtnCancel. setText ("cancel broadcast ");
BtnCancel. setOnClickListener (new OnClickListener (){

@ Override
Public void onClick (View v ){
Nm. cancel (NOFITY_ID );
}
});

Notification n = new Notification ();
Int icon = R. drawable. ic_launcher;
String tickerText = "Test notifiManager ";
Long when = System. currentTimeMillis ();
N. icon = icon;
N. tickerText = tickerText;
N. when = when;
// Instantiate Intent
Intent intent = new Intent (this, MainActivity. class );
// Get PendingIntent
PendingIntent pi = PendingIntent. getActivity (this, 0, intent, 0 );
// Set event information
N. setLatestEventInfo (this, "My title", "My content", pi );
Nm. notify (NOFITY_ID, n );

}

}