Programmer Group

I. Preface Recently, I saw the andix hot fix framework of Alibaba, but it seems that it can't support all devices. So, I need to manually implement Android hot fix once, and find out how to achieve it. Two, principle When Java's virtual machine JVM runs the code, it loads the. Class bytecode file, while Android's Dalvik/ART ...

1, Anonymous internal mode This method seems simple and easy to understand on the whole, and is commonly used by individuals xml layout <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_heig ...

1. Wake up phenomenon of mobile assistant in the background com.qihoo.appstore and com.tencent.android mainly wake up in the background through JobScheduler and SyncManager events. Because most of the previous broadcast events, such as network static broadcast and application installation static broadcast, have been canceled b ...

SharedPreferences SharedPreferences is a lightweight storage class on Android platform, which is used to save some common configurations of applications. Save settings, properties, and data as key value pairs. There is also a SharedPreferences plug in， Use NSUserDefaults on iOS and SharedPreferences on Android to provide per ...

Contents 1. Vertical scrolling: Scroll 2. Horizontal scrolling: HorizontalScrollView Vertical scrolling: Scroll Horizontal Scrollview ScrollView is called ScrollView. When the pixels of a screen cannot be displayed, it can be displayed on the UI in a sliding way 1. Vertical scrolling: Scroll Create a new ...

Reference resources: https://www.jianshu.com/p/5be222e98efc?from=jiantop.com / / used by gradle https://github.com/nuuneoi/JCenter/blob/master/installv1.gradle / / dependent on gradle location   Objectives: Previously, Android Studio released aar to Jcenter. For details, please refer to: https://blog.csdn.net/u014803950/ar ...

Design sketch: This time it mainly records how to change the shape of the button. First, in the project app > res > drawable folder, right-click new to create a drawable return file, and then name the drawable file. Then write the code to control the key shape in the new drawable xml file. The code is as follows: &l ...

Android learning notes Refer to the second edition of the first line of code and the second edition of android programming authority guide In the development process, we want our App to have the function of visiting web pages, but we don't want to use a third-party browser. So here we introduce the WebView technology, which ...

Preface: before (87) WiFi & DHCP Combing the DHCP process, now combing the next process with WiFi state machine.   Preparatory work: grab the log from Xiaomi mix2 8.0 WiFi state machine to the beginning of ObtainingIpState and the end of ConnectedState. 09-01 21:09:28.135 1561 2457 D WifiStateMachine: enter ObtainingIp ...

In addition to using the hellochart framework, this rendering can also be completed by using Echart. I wrote it with Echart first, and then with hellochart later. The reason is that it's painful to call js code with Android native, which wastes my day's work. Example renderings: Histogram: Without too much explanation, the ...