實現通知欄消息的生成和消除

MainActivity.java?? public?class?MainActivity?extends?Activity?? {?? ????static?final?int?NOTIFICATION_ID?=?0x123;?? ????NotificationManager?nm;?? ????@Override?? ????public?void?onCreate(Bundle?savedInstanceState)?? ????{?? ????????super.onCreate(savedInstanceState);?? ????????setContentView(R.layout.main);?? ????????//?獲取系統的NotificationManager服務?? ????????nm?=?(NotificationManager)?? ????????????????getSystemService(NOTIFICATION_SERVICE);?? ????}?? ????//?為發送通知的按鈕的點擊事件定義事件處理方法?? ????public?void?send(View?source)?? ????{?? ????????//?創建一個啟動其他Activity的Intent?? ????????Intent?intent?=?new?Intent(MainActivity.this?? ????????????????,?OtherActivity.class);?? ????????PendingIntent?pi?=?PendingIntent.getActivity(?? ????????????????MainActivity.this,?0,?intent,?0);?? ????????Notification?notify?=?new?Notification.Builder(this)?? ????????????????//?設置打開該通知，該通知自動消失?? ????????????????.setAutoCancel(true)?? ????????????????//?設置顯示在狀態欄的通知提示信息?? ????????????????.setTicker("有新消息")?? ????????????????//?設置通知的圖標?? ????????????????.setSmallIcon(R.drawable.notify)?? ????????????????//?設置通知內容的標題?? ????????????????.setContentTitle("一條新通知")?? ????????????????//?設置通知內容?? ????????????????.setContentText("恭喜你，您加薪了，工資增加20%!")?? ????????????????//?設置使用系統默認的聲音、默認LED燈?? ????????????????//?.setDefaults(Notification.DEFAULT_SOUND?? ????????????????//?|Notification.DEFAULT_LIGHTS)?? ????????????????//?設置通知的自定義聲音?? ????????????????.setSound(Uri.parse("android.resource://org.crazyit.ui/"?? ????????????????????????+?R.raw.msg))?? ????????????????.setWhen(System.currentTimeMillis())?? ????????????????//?設改通知將要啟動程序的Intent?? ????????????????.setContentIntent(pi)??//?①?? ????????????????.build();?? ????????//?發送通知?? ????????nm.notify(NOTIFICATION_ID,?notify);?? ????}?? ????//?為刪除通知的按鈕的點擊事件定義事件處理方法?? ????public?void?del(View?v)?? ????{?? ????????//?取消通知?? ????????nm.cancel(NOTIFICATION_ID);?? ????}?? }?? OtherActivity?? public?class?OtherActivity?extends?Activity?? {?? ???@Override?? ???public?void?onCreate(Bundle?savedInstanceState)?? ???{?? ??????super.onCreate(savedInstanceState);?? ??????//設置該Activity顯示的頁面?? ??????setContentView(R.layout.other);?? ???}?? }?? XML文件?? <?xml?version="1.0"?encoding="utf-8"?>?? <LinearLayout?xmlns:android="http://schemas.android.com/apk/res/android"?? ???android:orientation="horizontal"?? ???android:layout_width="match_parent"?? ???android:layout_height="match_parent"?? ???android:gravity="center_horizontal">?? <Button?? ???android:layout_width="wrap_content"??? ???android:layout_height="wrap_content"??? ???android:text="發送Notification"?? ???android:onClick="send"?? ???/>?? <Button?? ???android:layout_width="wrap_content"??? ???android:layout_height="wrap_content"??? ???android:text="刪除Notification"?? ???android:onClick="del"?? ???/>??? </LinearLayout>?? other.xml?? <?xml?version="1.0"?encoding="utf-8"?>?? <LinearLayout??xmlns:android="http://schemas.android.com/apk/res/android"?? ???android:layout_width="match_parent"?? ???android:layout_height="wrap_content"?? ???android:gravity="center_horizontal"?? ???android:orientation="vertical">?? <!--?定義一個ImageView?-->?? <ImageView?? ???android:layout_width="match_parent"?? ???android:layout_height="wrap_content"?? ???android:src="@drawable/swift"?? ???android:layout_gravity="center_horizontal"?? ???/>?? </LinearLayout>?? Menu.xml?? <menu?xmlns:android="http://schemas.android.com/apk/res/android"?? ?????xmlns:tools="http://schemas.android.com/tools"?? ?????tools:context=".MainActivity">?? ???<item?android:id="@+id/action_settings"?? ????????android:title="@string/app_name"?? ????????android:orderInCategory="100"?? ????????android:showAsAction="never"/>?? </menu>??

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效果

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轉載于:https://www.cnblogs.com/wwjldm/p/6930567.html

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