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Basically, each application will have its own Application, which inherits from the Application class of the system, and then encapsulates some common operations in its own Application class. In fact, this is not a recommended practice for Google, because we just use Application as a general tool class, and in fact use a simple singleton class c ...

Responsive Function Programming_RxJava & RxAndroid Home page: https://github.com/ReactiveX/RxJava Chinese material: https://github.com/lzyzsd/Awesome-RxJava https://www.zhihu.com/question/35511144 1. Purpose: Asynchronous operation You can still keep the logic of your code concise in cases where the logic of you ...

DES Encryption Introduction: DES is a symmetric encryption algorithm, the so-called symmetric encryption algorithm is: encryption and decryption using the same key algorithm. DES encryption arithmetic originated from IBM research and was formally adopted by the U.S. government. It has been widely used since then. But in recent years, it has ...

Recently, when adapting the project, it was found that some of the mobile phones (such as Huawei Mobile Phone) had virtual keys at the bottom. Because of the existence of virtual keys, some of the interfaces were blocked. Because of the need for full screen display, the virtual keys hiding method was called to hide them. However, the following ...

Main categories: ViewPager's Brief Explanation Optimal Implementation of ViewPager Introduction to Fregment Optimal Implementation of Fregment ViewPager in conjunction with Fregment Introduction and Function of ViewPager ViewPager is a class in the v4 package of the android extension package, which allows users to switch the current view ...

Project address: https://github.com/liaohuqiu/android-Ultra-Pull-To-Refresh 1. Functional introduction Drop-down refresh is a feature that almost every Android application needs. android-Ultra-Pull-To-Refresh (hereinafter referred to as UltraPTR) is a powerful Andriod drop-down refresh framework. Main features: (1) Inherited from Vi ...

Android We are provided with a large number of View controls, but this is still far from meeting our requirements. Sometimes the form of control needed for development does not exist in the control provided by Android, which requires us to define one ourselves. So how to customize controls?   To learn about custom controls, you first ne ...

Original address: http://blog.csdn.net/liuhe688/article/details/6852523 be familiar with Android As you all know, no matter the micro-blog client or the news client, it can not be separated from the list component. It can be said that the list component is the most important component in Android data presentation. Today we will talk abou ...

Preface I have always wanted to sort out the usage of database operation. Turning to GreenDao, which is now quite popular, the encapsulated CRUD grammar can not be seen. Of course, it is not that GreenDao is not good, at least not good for beginners. Learning should be gradual and know why it is good. This article refers to a God blog, togeth ...

Development of Alliance Statistical SDK 1. Setting up the Environment First, get the appKey, in Manage Background Home Page Create applications, fill in information, and the system will automatically generate appKey: Secondly, for the Android Studio environment, add gradle dependencies: dependencies { compile 'com.umeng.analyt ...