Programmer Think

Kotlin is really a beautiful development language. She has some great features that make Android development interesting and exciting. Delegate properties Is one of them. In this article, we will see how entrustment makes Android development easier. Basics First, what is delegation? How does it work? Although delegation seems magical, it is ...

1, Foreword Next, we will install and debug the groundsdk Android in the linux environment. The official documents given by Parrot are generally no problem, but I have never been in contact with Android development before, so I have encountered some difficulties, which is hereby recorded.The following is a link to the official installation ...

preface Because many applications need some initialization transactions during startup, there is a certain blank delay when starting the application. Before, our general practice was to improve the startup experience by replacing the custom theme of Android: windowsbackground to display a default picture in time when the application starts. I ...

brief introduction Based on the source code analysis of Android 11.0, this paper analyzes how the Android process is created step by step 1, Overview 1.1 system_server process and Zygote process system_server process: used to manage the entire Java framework layer, including various system services such as ActivityManager and PowerManager; ...

1. ForewordPeople keep asking me, RxHttp What are the advantages over Retrofit? Here, I would like to talk about my ideas in terms of stability, functionality and ease of use.First of all, let me state that the emergence of RxHttp is not to kill anyone, but to give you more choices and different choices.stabilityI always think that Retrofit is ...

At the 2019 Google/IO conference, a new Android native UI development framework Jetpack Compose was unveiled. Like SwiftUI of IOS, Jetpack Compose is also a declarative UI framework. With the launch of its own platform specific declarative UI framework by Android and IOS mobile platforms, the whole industry has begun to turn to declarative inte ...

In the JectPack component, ViewModel is mainly used to encapsulate the data related to the interface. Similarly, ViewModel has the ability of life cycle awareness. It always exists in memory before the destruction of Activity or Fragment onDetach; Especially after system configuration changes such as screen rotation, the interface data saved by ...

Create SoundPool BeatBox.java public class BeatBox { //... private static final int MAX_SOUNDS = 5; private AssetManager mAssets; private List<Sound> mSounds = new ArrayList<>(); private SoundPool mSoundPool; public BeatBox(Context context) { mAssets = context.getAssets(); /** * ...

I What is a content provider Content provider is one of the four components, but we don't often use it in general development. The content provider is the ContentProvider, which provides a unified interface for data sharing between different software. It exposes data in a way similar to a data table. If you describe it with images, it's roughl ...

1, SharedPreferences Unlike the way files are stored, if you want to save a relatively small set of key values, you should use the SharedReferences API. The SharedReferences object points to a file containing key value pairs and provides simple read and write methods. This article starts with SharedReferences and gradually introduces Preferen ...