Android-Notification 簡單範例

1 . 一般

notification(MainActivity.this, "提示 Title", "提示 Message");

private void notification(Context context, String title, String message){

    final int notifyID = 1; // 通知的識別號碼
    final NotificationManager notificationManager = 
            (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE); 
    final Notification notification = new Notification
            .Builder(context)
    .setSmallIcon(R.drawable.ic_launcher) // 24 x 24 px
    .setContentTitle(title)
    .setContentText(message)
    .build(); 
    notificationManager.notify(notifyID, notification); 
}

2 . 持續型( 常駐 )

private NotificationManager manager;
private Bitmap icon;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    
    manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    icon = BitmapFactory.decodeResource(getResources(),
            R.drawable.ic_launcher);
    .
    .
    .

// 顯示客製化視窗                
private void showCustomView() {
    // 控制面板
    RemoteViews remoteViews = new RemoteViews(getPackageName(),
            R.layout.notification_design);
    
    // 被觸發後發送對應的廣播
    Intent intent = new Intent();
    intent.setAction("i_am_hungry");
    intent.putExtra("HELLO", "7");
    
    PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
    
    // 面板內的元件設置接收器(原因 : RemoteView沒有定義此方法)
    remoteViews.setOnClickPendingIntent(R.id.imageView1, pendingIntent);
    
    // 建立相關元件
    NotificationCompat.Builder builder = new Builder(this);
    
    builder.setContent(remoteViews)
           // 狀態列的Icon
           .setSmallIcon(R.drawable.music_icon)
           // 提醒內的大型Icon
           .setLargeIcon(icon)
           // 是否持續顯示提醒
           .setOngoing(true)
           // 狀態列的條碼燈( 只會出現一次 )
           .setTicker("123456");
    
    manager.notify(7, builder.build());
}

如果要取消常駐型提醒

manager.cancelAll();

public class Rreciver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        Bundle bundle0311 = intent.getExtras();
        if(bundle0311!= null){
            String aaa = bundle0311.getString("HELLO");
            NotificationManager manager = (NotificationManager) 
                context.getSystemService(Context.NOTIFICATION_SERVICE);
            // 清除所以有的 Notification
            // manager.cancelAll();
            // 清除指定的 Notification
            manager.cancel(Integer.parseInt(aaa));

        }
    }
}

記住，記得一定要加上監聽

<receiver android:name="Rreciver">
    <intent-filter>
        <action android:name="i_am_hungry" />
    </intent-filter>
 </receiver>

參考資料 : android notification 總結
參考資料 : Android--通知之Notification
參考資料 : Android 如何顯示通知訊息(Notifications)？

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