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"Look at the Handler with questions" 1, Write in front At the beginning of the design, the Android system was designed as a single thread model. In fact, it is not only Android, but also Java Swing Historical reasons of Back to Android, we all know that the UI can only be updated in the UI thread, that is, the main thread, and it is ...

58 city Android Qigsaw upgrade-v1.0 4.1 multi ABI construction 1. Background2. Scheme investigation and design3. Upgrade process 1. Background Qigsaw is an open source framework used by Wafers' dynamic capability, which carries the operation of 58App, arbitrary gate and Mocha. The group started from qigsaw v1.0 in 2020 / 03 3.2.2 fork access ...

Learn jni development. Ensure that the AS has installed relevant SDK tools, mainly LLDB, NDK and CMAKE 1. Build a jni project Create a jni project and select Native C + +, New is complete. See what the default generated project has. 1.1 main page MainActivity public class MainActivity extends AppCompatActivity { // Used to load the ...

Android AOP scheme (I) - AspectJ - Nuggets AOP is a concept without specific language implementation. It can overcome the shortcomings of languages with only single inheritance features (such as Java). There are many ways to implement AOP, and AspectJ is only one of them. AspectJ annotates the pointcut, pointcut object, etc. in the form of anno ...

1, SpringBoot is used in IDEA to manage the back-end requests, which is the basic framework in IDEA 1.Spring integrates mybatis 1. Enter Dane and import the dependencies required by SSM framework 2. Create yml file //Create yml file spring: datasource: type: com.alibaba.druid.pool.DruidDataSource druid: driver-class-name ...

Author: Dawish_ Big D Brief book: http://www.jianshu.com/u/40e1f22c2c53 (1) The overall structure of component implementation of Android official MVVM framework(2) Android official MVVM framework implements componentized ARouter in series with each module Current project structure chart top: Github address of Demo: https://github.com/D ...

Android Rights Management 1. Basic Introduction _Android security architecture states that by default, no application has the right to perform any action that adversely affects other applications, operating systems or users. This includes reading and writing the user's private data, such as contacts or e-mail, reading and writing fi ...

The article does not point out the creation of activities, layout code and control binding. You can find relevant videos for basic learning first Service Service Some applications rarely interact with users. They only interact with users in the background. They only process some tasks in the background, and users can still run other applicati ...

The wechat technology account of "Wei Feng Chen" has been opened. In order to get the first-hand push of technical articles, you are welcome to search and pay attention! preface With the gradual deepening of the technical points discussed in this series, the official test server mentioned earlier can no longer meet the needs of our ...

Common errors: Initialization error Array / iterator / pointer access out of bounds Access invalid / null pointer object Memory leak Parameter error stack overflow Type conversion error etc. 1. Log and its explanation: Log collection already exists by default. If you test and collect logs yourself, you can directly: ADB logcat - B crash ...