Programmer Group

Android Studio Generates SO Files There may be many ways to generate so. Here's a simple way. It consists of the following three steps. Download and configure ndk, write java to call native method of so; Generate. h header folder, write c/c++ fi ...

0. Preface When you use Taobao, you will encounter this effect as shown in the following figure. It will only show some skeleton maps, and then show the real page data after the data is loaded. Compared with Chrysanthemum Diagram, this implementat ...

Strongly Recommend Articles: Welcome to CollectionAndroid Dry Goods Sharing Read for five minutes, ten o'clock a day, and study with you for life. Here's Android, a programmer. This article mainly introduces some knowledge points in Android development. By reading this article, you will gain the following contents: 1.MTK AEE Log Analysis Too ...

APK compilation process - DEX file What is a DEX file? As we know, although our applications are usually written in java, it is not Java bytecode that is ultimately executed by the Dalivk virtual machine, but dalivk bytecode. Class bytecode is c ...

Preface Validation is designed primarily for security reasons, to prevent the machine from doing something directly. As a result, many people have come up with different kinds of validation codes. Here's how to unlock puzzle using Android Custom View. Design sketch From the diagram, you can see that there are no particularly difficult points, ...

Option Menu Basic Use The following figure is a basic Option Menu, which is basically used in three steps: creating a resource file, rewriting the onCreate Options Menu loading menu, and rewriting onOptions ItemSelected to handle click events. Step1: Create resource files The three points in the figure above are other hidden menus. The followi ...

Introduction to Catalogue 01.Sp Brief Introduction 1.1 Sp Action Analysis 1.2 Case Analysis 02.Sp Initialization Operation 2.1 How to get sp 2.2 Shared Preferences Impl Construction 03.edit method source code 04.put and get method source code 4.1 put method source code 4.2 get method source code 05.commit and apply 5.1 commit source ...

Custom View (Canvas, Paint, Bessel Curve) Catalog Custom View (Canvas, Paint, Bessel Curve) Draw a circle on Canvas and save it with Bitmap On the path, draw circles in turn to form line animation. Drawing multiple paths at the same time I ...

1. Create a Service-side project: 1. Create a new aidl file, the system will create a folder of aidl by default after creation. There is a default method in the aidl file that can be deleted.Change to an aidl file that declares the Parcelable data ty ...

Catalog Call System Camera Get pictures How to Get Pictures No storage directory specified Specify storage directory Designated storage directories above Android 7.0 Simple Use of FileProvider Reference link Call System Camera If it is no ...