attribute to identify this value. When I jump to an activity every time, I set this value to true. Otherwise, I set it to false and cancel the notification display. If this value is false, the program will be placed in the background. Note that the boolean value must be set to false in the onResume () method if the activity method redirects.
The following is the implementation code:
[Java]Import android. a
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
Basic Steps for using Notification:
Use of noication ication and icationicationmanager
1. Obtain the system-level service NofifiactionManager
String Service = NOFICATION_SERVICE
Icationicationmanager nm = (NotificationManager) getSystemService (Service );
2. instantiate the Notificatoin object and set its attributes:
Notification n = new noication ();
// Set the display icon, which will be displayed in the
Android --- 60 --- simple use of the Notification bar, androidnotification
Notification is a Notification displayed in the mobile phone status bar.
Create a Notification object using the Notification. Builder class.
Common
Android application check version update, download in the notification bar, update download progress, download complete automatic installation, the effect is as follows:
• Check the current version number
The Versioncode in the Androidmanifest file identifies the version, the Apk,versioncode of a new version of the server is larger than the current version, and the following code is used to get the Vers
Create a phone alert1. Create a NotificationmanagerCreate a Notificationmanager to manage notifications on the line. The general call to the context's Getsystemservice () method gets the object, which passes in the service to get, and returns a value of that type. As follows:/* get to a notificationmanager to manage notifications, * using the Getsystemservice method, passing in a service, returning a manager */ = (notificationmanager) getsystemservic
() {@ Override public void onGlobalLayout () {// remove the last listener to avoid repeated mButton listening. getViewTreeObserver (). removeGlobalOnLayoutListener (this); // call getHeight () here to obtain the height of the control buttonHeight = mButton. getHeight ();}});3. Get the height of the status bar/notification bar
public static int getStatusBarHeight(Context context){ Class4. Obtain the
: notification.ledARGB=0xff00ff00; notification.ledOnMS=300; notification.ledOffMS=1000; notification.flags|=Notification.FLAG_SHOW_LIGHTS;Where Ledargb represents the light color, Ledonms light duration, ledoffms dark time.Note: This side of the color with the device, not all colors can be, to see the specific equipment.5. Other useful settings:The code is as follows:Flagsnotification.flag_insistent;//lets the sound and vibration loop indefinitely until the user respondsnotification
API level 16. Use build() instead.That is, the GetNotification () method obtains the notification object above the Android API level 16 is invalid.3. Higher than Android API level 16Using Notification.builder to build, call Builder's build () to get the object.
Notificati
In this example, Icons Only and Icons and marquee have nothing to note.
The Use Remote views in balloon introduces the Layout that can be customized to display Notification in the Extended Status bar. The Extended Status Bar displays Notification as an icon by default, followed by text, which is sufficient in most cases. If needed, you can also use the custom Lay
information on designing the notification stack, please refer to the design principles of Android Wear.Add each Notification to a group (grouping each piece of information)To create a stack, you need to call the Setgroup () method for each notification and specify the group
in this way. When we tested the Xiaomi and Sony machines, the solution was to replace the previous large icon (we originally 72x72) with the current 32x32 small icon and move it from the previous xxhdpi to the hdpi folder.2, ticker do not display: Direct display notification of the icon, the middle of the ticker process is not shownThis did not find what is the reason, directly put Setfullscreenintent (Mpifullscreen, false) This line can be written o
At the time of message notification, we often use two controls notification and toast. Especially important and need long time display information, with notification the most suitable. He can display an icon at the top to indicate a new notice, and when we pull down the notification bar, we can see the details of the n
This is almost the end of the project. The manager asked me to solve a problem, that is, after our program is closed, the notification sent by the program has never been cleared on the status bar and needs to be clarified manually,
The experience is extremely poor. Now I want to eliminate the notification after the program is launched. I have thought about it. I don't know how to understand it. I have read
second parameter is ignored, and the third parameter determines whether the progress bar is an indeterminate progress bar. The final display has the same display style as the regular progress bar, except that it has been moving.Publish the notification before the action starts, and the progress animation will continue to run until you modify the notification. When the operation is complete,
There are two kinds of hints about messages: One is toast, the other is notification. The former is relatively short-lived, while the latter remains relatively long.And our ordinary mobile phone applications such as NetEase, bar paste and so on have a lot of push messages. is realized with notification.Notification is the notification displayed in the phone status bar-the phone status bar is located above t
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