Android 5.x OTA Update official documentation (V. Partition ing in the Recovery System), androidota
Preface: if the translation can be translated, the translation will not be translated, and the translation will not be translated. In order to choose not to mislead others, the translation will also be missed. English is hard. If there is a mistake, ask a passing friend to correct it, so as not to mislead mor
generated the diff package. Also provides a bspatch, this is to help us carry out the document peace.Suppose you want to do this in Android. It is necessary to configure the NDK development environment, assuming that the students do not want to be able to directly use the. so file in the demo.It is possible to merge files by calling this method:The combined APK file is no different from the latest installation package and has the same eigenvalues.Fin
The most important component services and activities of Android are the communication problems between them. Of course, today we will not study the underlying implementation issues. I will study how to use the upper-layer applications.First, the activity calls the service
This is relatively basic, and there are two common methods;
First, using intent, this is relatively simple. You can specify the package name and class name to call it. The intent. se
minimum version number of the request, and the server will return all data with a version number greater than or equal to 0 when it receives the request.First, add a URL rule in url.pyURL (r ' ^download/(? pThen add the function in the view.py download_kanjidef Download_kanji (Request, version=0): kanji = _mongo.get_kanji (int (version)) return HttpResponse (Kanji, Content_type= "Application/json")Read data greater than or equal to versiondef Get_kanji (self, version): # Check pending
There are often problems with Android projects that update the UI after a time-consuming operation in a child thread, and then summarize the updated methods for some of the projects that you have experienced:Reference:Android sub-threadingMethod One: With handler1, the main thread defined handler:Handler Mhandler = new Handler () {@Overridepublic void Handlemessage (Message msg) {super.handlemessage (msg);
Original address: http://www.cnblogs.com/onechen/p/4379924.htmlFor: XE8 Android PlatformIssue: When installing XE8 RTM, if you check Android SDK 5.0.1 (API 21) and Android NDK (android-ndk-r9c), remember to update the Android SDK
Android SDK Update mirror server online
Open Source Association of Chinese Academy of Sciences Mirror Station address:
ipv4/ipv6: Port:
ipv4/ipv6: mirrors.opencas.org Port:
ipv4/ipv6: mirrors.opencas.ac.cn Port:
Shanghai GDG mirror server address: sdk.gdgshanghai.com Port: 8000
Beijing University mirror server address:
configuration OK then let's start uploading the project. Start by building a project in Android studio. Steps to upload the project to GitHubWait patiently for your project to appear on the GitHub website.
Update the project.OK now our new project code has changed, add a test class, want to commit the changed code on GitHubFirst, we'll add the code to the local library:Right-click the project (or right
messages to start doing things Try{Root.setview (view, Wparams, Panelparentview); }Catch(RuntimeException e) {//Badtokenexception or invaliddisplayexception, clean up. synchronized(MLock) {Final intindex = findviewlocked (view,false);if(Index >=0) {removeviewlocked (index,true); } }ThrowE }}Finally, Viewrootimpl was created in the AddView method of Windowmanagerglobal.Review the previous analysis and summarize:Viewrootimpl was created after the Onresume method callback, and we
MessageQueue, and then looper out, sent to handler call display, sub-threading because there is no looper, So we need to add looper.prepare and Looper.loop to create a looper, but in essence, this is still called on the child thread, so it will be an error!So why does Android require the view to be changed only in the main thread of the UI? This is about Android's single-threaded model, because the resulting thread synchronization and thread-safety i
The most important component services and activities of Android are the communication problems between them. Of course, today we will not study the underlying implementation issues. I will study how to use the upper-layer applications. First, the activity calls the service
This is relatively basic, and there are two common methods;
First, using intent, this is relatively simple. You can specify the package name and class name to call it. The intent
Step One application system configuration file-application version configuration information
Package = "TP. NationalTest"Android: versionCode = "4"Android: versionName = "1.4" type = "codeph" text = "/codeph">
VersionCode: Version Number
VersionName:Version name
MinSdkVersion: Minimum SDk version
Step Two backend verifies whether the current application version is to be updated
/* Check the application ver
First, the use of the scene
APK upgrade to save server and user traffic
Second, the principleSince Android 4.1, Google Play has introduced an incremental update to the app that uses this upgrade method to save about 2/3 of your traffic.Now the domestic mainstream application market also supports the incremental update of the application, the most co
indicates the minimum version of the request, and the server will return all data with a version greater than or equal to 0 when the request is received.First, add a URL rule to url.pyURL (r ' ^download/(? pThen add the function to the view.py download_kanjidef Download_kanji (Request, version=0): kanji = _mongo.get_kanji (int (version)) return HttpResponse (Kanji, Content_type= "Application/json")Read data greater than or equal to versiondef Get_kanji (self, version): # Check pending
Android Android SDK configuration steps
Launch Android SDK Manager, open the main interface, select "tools", "options...", pop up the "Android SDK manager-settings" window;
In the "Android SDK manager-settings" window, fill in and in the "http proxy server" and "http
Because my c disk is relatively small, the Android SDK is installed on the C drive, then the things he downloaded will also default to the C drive. So I chose to install the other disks.And I found that Android SDK Manager can open multiple windows, so if each window is very slow, we can speed up the download speed.Don't download all of the Android SDK manager do
This article is an example of how to update the battery power information of Android programming. Share to everyone for your reference, specific as follows:
Battery information, voltage, temperature, charging status, etc., are provided by Batteryservice. Batteryservice is run in the system_process, when the system initialization, the following
You can see the code to start Batteryservice in Systemserver.j
Android UI Update
People who have done Android development have been confronted with the problem that as the requirements change, some of the portal interfaces will be subject to changes in UI, content, and jump interface, and there are several ways to implement UI updates.
1, activity of the Runonuithread
TextView = (TextView) Findviewbyid (r.id.tv);
Problem Description:the Android SDK Manager cannot download the update, or the update is very slow, or the list of packages to be installed is not displayed. Workaround:First, we'll modify the hosts file. The location of the file is in the system disk (typically C-drive) with the following path:C:\Windows\System32\ drivers\etc\hosts. After the file is found, we n
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