The friendly visual perception and stable and error-free performance come from our pursuit of aesthetics and comprehensive consideration. I have always enjoyed it from a technical point of view.This articleArticleIt is a must-have knowledge for Android Developers. It is not perfect but useful for everyone.
This article is a supplement to the previous "android Learning Series (2) -- download in the notific
Android standby status update
The standby status of Android is managedPowerManagerService. javaManagement
The main status update method is to post the code below, and the comments are clearly written. The first time I saw the system source code, I felt pretty good.
Update wa
Analyze the recovery process and start with analyzing the upgrade package.The upgrade package can be generated by the make otapackage command, which is generated by makefile and the packaging script (Python.The generation rules are complex, including the signature process, which has no details and focuses on its content.After the upgrade package is decompressed, the structure is as follows:
/home/simba/update_zip|-- boot.img|-- Manifest.xml|-- META-INF| |-- CERT.RSA| |-- CERT.SF| |-- com|
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
ObjectiveThere are many more techniques for apk updates, such as: Incremental update, plug-in development, hot fix, RN, silent installation.Here's a quick introduction:What is an incremental update?Incremental updates are the only places where the original app is updated and the rest remains intact.The benefits of this are obvious compared to the fact that each update
performed in the background, executed in a background threadPublishprogress (0);//the Onprogressupdate (Integer ... progress) method will be calledHttpClient HttpClient =Newdefaulthttpclient (); Publishprogress (30); HttpGet HttpGet=NewHttpGet (params[0]); FinalBitmap Bitmap; Try{HttpResponse HttpResponse=Httpclient.execute (HttpGet); Bitmap=Bitmapfactory.decodestream (Httpresponse.getentity (). getcontent
The following is an Android version and API of the corresponding relationship icon, easy to review, will continue to update
API level
Android version number
Android version Name
Corresponding Support Packages
api Level 1:
. Obviously after 200 milliseconds Viewrootimpl has been created, you can perform the Checkthread method to check the current thread.The analysis of this blog, like the title, Android Neutron line threads can not update the UI? Child threads created in the OnCreate method access UI is an extreme situation, this does not carefully analyze the source code is not known. I have recently seen a face test, only t
Fetching https://dl-ssl.google.com/android/repository/addons_list-2.xmlFailed to fetch URL https://dl-ssl.google.com/android/repository/addons_list-2.xml, Reason:peer not authenticated Fetched add-ons List successfullyFetching Url:https://dl-ssl.google.com/android/repository/repository-7.xmlFailed to fetch URL https://
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:Method One: With handler1, the main thread defined handler:Handler Mhandler = new Handler () {@Overridepublic void Handlemessage (Message msg) {super.handlemessage (msg); switch ( Msg.what) {Case
Official Android Technical Documentation translation-Gradle Plug-In User Guide (7), androidgradle
This article is translated from the official Android Technical Documentation Gradle Plugin User Guide. The original address is http://tools.android.com/tech-docs/new-build-system/user-guide.
It is not easy to translate. For more information, see the source on the CSD
In Android development, we often need to pop up some dialog boxes on the Android interface, such as asking the user or letting the user choose. These features we call it Android Dialog dialog, in the course of our use of Android, I summed up, the type of android dialog is no
Today want to write a program to test the Android Studo code, but after creating a good project, prompt:Error: (1, 0) Plugin is too old, please update to a more recent version, or set android_daily_override environment variable To "8051cdccc746d532152541ee35015fd83699f14"To be sure, my native Android studio other proje
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
There are two sets of methods to update the view in Android: invalidate and postInvalidate. The former is used in the UI thread itself, the latter is used in non-UI threads.
Android provides the Invalidate method to refresh the interface, but Invalidate cannot be called directly in the thread, because it violates the single-thread model:
Publishers cannot share the electronic version because of copyright issues. I downloaded 2 more clear versions of the PDF from some of my "love" friends who scanned them and shared them with you. http://t.cn/RL18RVo?u=1826440077m=3875729874015740cu=1826440077 BTW, I have always felt that stealing books is not stealing, as long as willing to share. These days, where is the beginning and end of the original knowledge? Due to the 115 network disk limit package download, I will now deeply understan
)); Tabhost.setcurrenttab (0);}}below to build our frame, the new Imageframe.java, Textframe.java, Bothframe.java inside the content basically similar, the following gives an example:Imageframe.javaPackage Com.jov.germany.frame;import Android.annotation.suppresslint;import Android.app.fragment;import Android.os.bundle;import Android.view.layoutinflater;import Android.view.view;import Android.view.ViewGroup; Import COM.JOV.GERMANY.R; @SuppressLint ("Ne
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