一個Android通知Notification Demo。點擊 發送通知 按鈕，則發送通知到設備的通知欄。點擊 清除通知 則清除通知欄上的消息通知。
package linuxidc.notification;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.support.v4.app.NotificationCompat;
public class MainActivity extends Activity {
private final int NOTIFICATION_ID = 105;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button send = (Button) findViewById(R.id.send);
send.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
sendNotification();
}
});
Button clear = (Button) findViewById(R.id.clear);
clear.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clearNotification();
}
});
}
private void sendNotification() {
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
this);
mBuilder.setSmallIcon(R.drawable.ic_launcher);
mBuilder.setContentTitle("通知的標題");
mBuilder.setContentText("通知的內容");
Notification notification = mBuilder.build();
// 缺省設置為當發送通知到通知欄時候：提示聲音 + 手機震動
notification.defaults = Notification.DEFAULT_SOUND
| Notification.DEFAULT_VIBRATE ;
// 通知的時間
notification.when = System.currentTimeMillis();
// 發送到手機的通知欄
notificationManager.notify(NOTIFICATION_ID, notification);
}
private void clearNotification() {
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
notificationManager.cancel(NOTIFICATION_ID);
}
}
需要的activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<Button
android:id="@+id/send"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="發送通知" />
<Button
android:id="@+id/clear"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="清除通知" />
</LinearLayout>
更多Android相關信息見Android 專題頁面 http://www.linuxidc.com/topicnews.aspx?tid=11
