Notification 的应用

notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

Intent intent=new Intent(this, MainActivity.class);
PendingIntent pendingIntent=PendingIntent.getActivity(this,0,intent,0);

Notification.Builder builder = new Notification.Builder(this);
builder.setContentTitle("this is title");
builder.setTicker("this is ticker");
builder.setContentText("this is content");
builder.setSmallIcon(R.mipmap.ic_launcher);
builder.setContentIntent(pendingIntent);

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
    notification = builder.build();
} else {
    notification = builder.getNotification();
}

findViewById(R.id.btn_one).setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        notificationManager.notify(0, notification);
    }
});
findViewById(R.id.btn_two).setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        notificationManager.cancel(0);
    }
});