Android开发学习笔记：Notification和NotificationManager浅析
NotificationManager 获取NotificationManager String service = Context.NOTIFICATION_SERVICE; NotificationManager mNotificationManager =(NotificationManager)getSystemService(service); Notification //实例化Notification Notificationnotification=newNotification(); 3.设置Notification的属性 //设置显示图标，该图标会在状态栏显示 inticon=notification.icon=R.drawable.happy; //设置显示提示信息，该信息也在状态栏显示 StringtickerText="测试Notification"; //显示时间 longwhen=System.currentTimeMillis();notification.icon=icon; notification.tickerText=tickerText; notification.when=when; //也可以这样设置 Notificationnotification_2=newNotification(icon,tickerText,when) 调用setLatestEventInfo()方法在视图中设置图标和时间。 //实例化Intent Intentintent=newIntent(MainActivity.this,MainActivity.class); //获得PendingIntent PendingIntentpIntent=PendingIntent.getActivity(MainActivity.this,0,intent,0); //设置事件信息 notification.setLatestEventInfo(MainActivity.this,"Title","Content",pIntent); 4.发出通知 //Notification标示ID privatestaticfinalintID=1; //发出通知 mNotificationManager.notify(ID,n); 下面是具体的例子,在这个例子里定义了一个MainActivity发出广播通知，定义一个MyReceiver类继承Broadcasts接受通知，当接收完通知之后，启动一个SecondActivity，在SecondActivity类中通过Notification和NotificationManager来可视化显示广播通知。具体的步骤如下： MainActivity.java packagecom.android.notification; importandroid.app.Activity; importandroid.content.Intent; importandroid.os.Bundle; importandroid.view.View; importandroid.view.View.OnClickListener; importandroid.widget.Button; publicclassMainActivityextendsActivity{ //声明Button privateButtonbtn; //定义BroadcastReceiveraction privatestaticfinalStringMY_ACTION="com.android.notification.MY_ACTION"; @Override publicvoidonCreate(BundlesavedInstanceState){ super.onCreate(savedInstanceState); //设置当前布局视图 setContentView(R.layout.main); //实例化Button btn=(Button)findViewById(R.id.Button1); //添加事件监听器 btn.setOnClickListener(listener); } //创建事件监听器 privateOnClickListenerlistener=newOnClickListener(){ @Override publicvoidonClick(Viewv){ //实例化Intent Intentintent=newIntent(); //设置Intentaction属性 intent.setAction(MY_ACTION); //发起广播 sendBroadcast(intent); } }; } MyReceiver.java packagecom.android.notification; importandroid.content.BroadcastReceiver; importandroid.content.Context; importandroid.content.Intent; publicclassMyReceiverextendsBroadcastReceiver{ @Override publicvoidonReceive(Contextcontext,Intentintent){ //实例化Intent Intenti=newIntent(); //在新的任务中启动Activity i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); //设置Intent启动的组件名称 i.setClass(context,SecondActivity.class); //启动Activity显示通知 context.startActivity(i); } } SecondActivity.java packagecom.android.notification; importandroid.app.Activity; importandroid.app.Notification; importandroid.app.NotificationManager; importandroid.app.PendingIntent; importandroid.content.Intent; importandroid.os.Bundle; importandroid.view.View; importandroid.view.View.OnClickListener; importandroid.widget.Button; publicclassSecondActivityextendsActivity{ //声明按钮 privateButtoncancelBtn; //声明Notification privateNotificationnotification; //声明NotificationManager privateNotificationManagermNotification; //Notification标示ID privatestaticfinalintID=1; @Override publicvoidonCreate(BundlesavedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.second); //实例化按钮 cancelBtn=(Button)findViewById(R.id.cancelButton2); //获得NotificationManager实例 Stringservice=NOTIFICATION_SERVICE; mNotification=(NotificationManager)getSystemService(service); //实例化Notification notification=newNotification(); //设置显示图标，该图标会在状态栏显示 inticon=notification.icon=android.R.drawable.stat_notify_chat; //设置显示提示信息，该信息也会在状态栏显示 StringtickerText="TestNotification"; //显示时间 longwhen=System.currentTimeMillis(); notification.icon=icon; notification.tickerText=tickerText; notification.when=when; //实例化Intent Intentintent=newIntent(this,MainActivity.class); //获得PendingIntent PendingIntentpi=PendingIntent.getActivity(this,0,intent,0); //设置事件信息 notification.setLatestEventInfo(this,"消息","HelloAndroid",pi); //发出通知 mNotification.notify(ID,notification); //为按钮添加监听器 cancelBtn.setOnClickListener(cancelListener); } //取消通知监听器 privateOnClickListenercancelListener=newOnClickListener(){ @Override publicvoidonClick(Viewv){ //取消通知 mNotification.cancel(ID); } }; } main.xml <?xmlversion="1.0"encoding="utf-8"?> <LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <Button android:text="发出广播通知" android:id="@+id/Button1" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout> second.xml <?xmlversion="1.0"encoding="utf-8"?> <LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:text="显示通知界面" android:id="@+id/TextView1" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <Button android:text="取消通知" android:id="@+id/cancelButton2" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout> 在AndroidManifest.xml文件中16~21加入对receiver，SecondActivity的声明 <?xmlversion="1.0"encoding="utf-8"?> <manifestxmlns:android="http://schemas.android.com/apk/res/android" package="com.android.notification" android:versionCode="1" android:versionName="1.0"> <uses-sdkandroid:minSdkVersion="10"/> <applicationandroid:icon="@drawable/icon"android:label="@string/app_name"> <activityandroid:name=".MainActivity" android:label="@string/app_name"> <intent-filter> <actionandroid:name="android.intent.action.MAIN"/> <categoryandroid:name="android.intent.category.LAUNCHER"/> </intent-filter> </activity> <receiverandroid:name="MyReceiver"> <intent-filter> <actionandroid:name="com.android.notification.MY_ACTION"/> </intent-filter> </receiver> <activityandroid:name="SecondActivity"/> </application> </manifest> 效果图： Notification丰富的提示方式： 声音提醒 ·使用默认声音 notification.defaults |= Notification.DEFAULT_SOUND; ·使用自定义声音 notification.sound = Uri.parse("file:///sdcard/notification/ringer.mp3"); ·注：如果定义了默认声音，那么自定义声音将被覆盖 振动提醒 ·使用默认振动 notification.defaults |= Notification.DEFAULT_VIBRATE; ·使用自定义振动 long[] vibrate = {0,100,200,300};notification.vibrate = vibrate; ·注：如果定义了默认振动，那么自定义振动将被覆盖 灯光闪烁提醒 ·使用默认闪烁 notification.defaults |= Notification.DEFAULT_LIGHTS; ·使用自定义闪烁 notification.ledARGB = 0xff00ff00;// LED灯的颜色，绿灯notification.ledOnMS = 300;// LED灯显示的毫秒数，300毫秒notification.ledOffMS = 1000;// LED灯关闭的毫秒数，1000毫秒notification.flags |= Notification.FLAG_SHOW_LIGHTS; // 必须加上这个标志 更多特性 可以通过 Notification 的相关字段或标志(flags)为提醒设置更多的特性。 ·FLAG_AUTO_CANCEL标志：当提醒被用户点击之后会自动被取消(cancel)； ·FLAG_INSISTENT标志：在用户响应之前会一直重复提醒音； ·FLAG_ONGOING_EVENT标志：Add this to theflagsfield to group the notification under the "Ongoing" title in the Notifications window. ·FLAG_NO_CLEAR标志：当在提醒栏中点击“清除提醒”按钮时，该提醒将不会被清除； ·number字段：This value indicates the current number of events represented by the notification. The appropriate number is overlaid on top of the status bar icon. If you intend to use this field, then you must start with "1" when the Notification is first created. (If you change the value from zero to anything greater during an update, the number is not shown.) ·iconLevel字段：This value indicates the current level of aLevelListDrawablethat isused for the notification icon. You can animate the icon in the status bar by changingthis value to correlate with the drawable's defined in a LevelListDrawable. ·contentView字段：To define your own layout for the expanded message, instantiate a RemoteViews object and pass it to thecontentViewfield of your Notification. Pass the PendingIntent to thecontentIntentfield. 本文转自 lingdududu 51CTO博客，原文链接： http://blog.51cto.com/liangruijun/657502
