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First of all, this explanation is not my own writing, but I found the relevant information to sort out, but also for the jar to make some contribution, Wen also analyzed the Google three son and Samsung I9100, I hope this article on the technical level to provide a scientific evaluation of Android and iOS. If you can solve the confusion in our hearts, I would like to add a bit to the younger brother, in this first thank you. Andorid has updated one ve

IntroductionInstalling Android in Windows Development environment is not simple or complicated, this article for the first time I want to build Android development environment on their windows to put Android wave friends, in order to ensure that everyone can successfully complete the development environment, the article wrote as far as possible,Hope to be helpful

Layout file used [Java]Android: layout_width = "fill_parent"Android: layout_height = "fill_parent"Android: orientation = "vertical"Android: background = "# ffffff"Android: gravity = "center_horizontal">Android: id = "@ + id/text"

NullPointerException at android. widget. AbsListView. obtainView at android. widget. ListView. makeAndAddView, androidlistview When using ExpandableListView, the following error is returned. Online Search found that null was returned in the getGroupView () method of CommonNumberQueryAdapter. Pay attention to the details !!! 12-19 17:32:41. 822: E/AndroidRuntime (1894): fatal exception: main12-19

Summary of problems encountered during android development [4]. android Summary 92.Looks like there is no way to avoid modifications made by the import plugin. all the settings it has is three checkboxes related to dependency management. I tried to uncheck all of them but still it does change my project structure. I managed to add existing library projects manually:1) Copied library's directory under the r

Android code obfuscation prevention decompilation Solution Research, android Decompilation All Android Developers Know How To obfuscation to prevent apk decompilation and cracking, and use proguard to obfuscation Java code. However, can obfuscation of Android Code actually play a substantial role? See the following ana

Excerpt from: http://ask.android-studio.org/?/question/789, re-organized for easy learning.This chapter guides you through the installation and setup of the development environment, and then you can follow the examples and lessons of this book.　　　　First, you will install the necessary components called the Java Development Kit (JDK).　　　　Then you download and install Android Studio and the Android Software D

Manage Android contacts and android contacts Android provides the Contacts application to manage Contacts, and the Android system also provides ContentProvider for contact management, which allows other applications to manage contact data with ContentResolver. For details about ContentProvider, ContentResolver, and U

Android Wear was released on March 19, 2014 and has Moto 360 and LG Watch two products.The source code is not open at the moment. However, the developer can download its image and the corresponding development SDK so that the developer can do the pre-development through the simulator.In fact, Android wear consists of two parts, part of the operating system performed on wearable devices, and part of it is fo

Android is a Linux based free and open source operating system that is primarily used in mobile devices such as smartphones and tablets, led and developed by Google and the Open Cell Alliance, and, in language, Android applications are based on the Java language, But it's all something we have to work on ourselves to learn. Whether you are Android rookie or

Android technology 20: Android initialization process, android Initialization How is the Android system started? How is the application started. The following describes the initialization process. 1. Android system initialization 1.1Android will first start the basic Linux s

[Development Diary of Android in a row from scratch] (9) -- ContentProvider of four Android components and four android ComponentsDifferent from other components, the data source component ContentProvider does not include specific functional logic. It is only responsible for providing data access interfaces for applications. Many of the data built in

[Android] [Android Studio] *. jar and *. aar generation and *. aar import project method, android. aarThis section describes how to generate an aar file in Android Studio and use the aar file locally. *. Jar and *. aar files are generated at the same time when you generate a self-built library in

Pro Android Learning notes: Pro Android Learning Note (117): Location (3): Get update 2014.8.25 Pro Android Learning Note (116): Location (2): Locationmanager's position gets 2014.8.21 Pro Android Learning Note (115): Location (1): Geocoder 2014.8.19 Pro Android Le

Preface: Update download Intel x86 atom_64 System image always fail, speed only a few KB, I this is 10M net AH.Finally found a log to solve this problem. Thank you so much! Its reference address: http://www.cnblogs.com/liongis/p/3659813.html.As a principle step, the address is slightly different.1. After the update fails to replicate the log, you can find the followingParse XML:Http://dl-ssl.google.com/android/repository/sys-img/