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The Android system has a notification bar, which is useful. Notifications are an important part of the interaction between Android and users. For example, new emails, short messages, and missed calls are displayed in the notification bar
In this chapter, we will learn the application of Notification. Many people ask what Notification is? Let me give it an analogy. for travel to the West, Tang Miao is caught by monsters. Then Wukong needs to know which monster has caught his master. He has to become some animals (flies or mosquitoes) let's inform his master and inform Tang sengwukong to save him. Here, the
interface Imynotificationbuilder {public Stati C final String notification_id = IMyNotificationBuilder.class.getSimpleName (); Notification buildnotification (string title, string content);}See here, students familiar with the design pattern should know that we are using the builder model to build different notification, according to Convention, there will usually be a default builder implementation, We na
in the Android system, it is convenient to send a status bar notification. Let's take a look at how to send the status bar notification, and what parameters can be set in the status bar notifi
we know that when using Android notifications, we will use Notificationmanager, notification These two classes, the roles of the two classes are :Notificationmanager: is the status bar notification management class, responsible for sending notifications, clear notification
Android supports toast and icationicationmanager notification methods. The former is equivalent to a timed closed dialog box, and the latter displays a message on the status bar. Both toast and notification can be canceled at any time.
Toast
A toast is a view containing a quick little message for the user. The toast c
Wirelessly creating a notification requires the use of Notificationmanager to manage notifications.Can be obtained by invoking the Getssystemservice () method of the context. The Getssystemservice () method receives a parameter, which is a string that specifies which service to use. Context.notification_service is the specified notification service. This method returns an object that you want to cast.Notifi
At the end of the previous article about how Android gets the music information of a third-party music player, it is mentioned that the information of the currently played song can be obtained by capturing the Notification sent by a third-party music player. First, analyze the Notification update mechanism.
Service involved:
StatusBarManagerService
Icationicati
There is an innovative UI design in the status bar of the Android system, which is a notification prompt that can be pulled down. When the system has some messages to notify users, such as receiving text messages, emails, or missed calls, the information will be sent to users as notification.
The status
This article implements the immersive status bar. What is the status bar before you define the concept? Direct:What is an immersive status bar? The example diagram is as follows:Non-immersive status bar immersive status barIn fact, the real thing is to make the color of the mobile phone status
When developing Android and iPhone applications, we often need to push various notification messages from the server to the mobile client in real time, the iPhone already has a relatively simple and perfect push notification solution, but it is relatively troublesome to implement it on the Android platform, in the past
At the time of message notification, we often use two components toast and notification. Especially important and need long time display information, with notification is the most suitable. When a message is notified, the status bar will display the icon and text of the notificatio
Open app/src/main/androidmanifest. 123 Package= "Com.example.administrator.myapplication" >4 5Application6Android:allowbackup= "true"7android:icon= "@mipmap/ic_launcher"8Android:label= "@string/app_name"9android:roundicon= "@mipmap/ic_launcher_round"TenAndroid:supportsrtl= "true" OneAndroid:theme= "@style/apptheme" > -1. Register the current activity. by registering the current activity with the tag, Android
", "shut"+"-----"+sbn.toString()); }}That is to say, when the system finds that an application generates a notification or the user deletes a notification, the two functions of the Service will be called back. The StatusBarNotification parameter of the function contains the specific information of the notification.
In And
indicates that if intent is to start the activity at the top of the stack, there is no need to create a new instanceI.setflags (Intent.flag_activity_single_top);Pendingintent pendingintent = pendingintent.getactivity (Nowcontext, N, I, pendingintent.flag_update_current);5. Set the style of notification in the notification bar(1) System default StyleAPI 11 below:
relevant application to the status where you can perform operations on the content mentioned in the notification. However, if you click a merged notification, you should go to the List page (the previous level on the Content Page). The third part will elaborate on it in detail.
5. Self-Cleaning
Some notifications will show related information and prompts at a certain time point. However, after that time po
is always the largest int height = v. getHeight (); // view height, excluding the status bar and title bar. If you only want to obtain the screen size, you can use Display display = getWindowManager (). getdefadisplay display ();Steps for status bar notification in android
Notification access rights open modeSettings--Beep and notification--notification rights.Specific interfaceWhen there is a need to have notification rights app: Does not exist when you need to have a notification rights app:Afte
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