Programmer Think

Delegation mode is a good alternative to inheritance. It is also a feature of kotlin language. It can implement delegation mode gracefully. It is also indispensable in the development process, but it is often underestimated. So let's pay attention to it today to fully grasp the characteristics and principles of kotlin delegation. 1, Delegate c ...

What will you learn in this article Through a code scenario, analyze the source code with the Layout function as the entry, and answer some questions. For example, if setting the size through the Modifier works? How is the measure method of the MeasurePolicy interface called? What is the measurement process in the Layout? How does the control ...

Our use of DiffUtil may be biased The front is my daily account. I think it looks boring. You can jump directly to the essence section Advantages of DiffUtil When I first came into contact with DiffUtil, I had a lot of good feelings for it, including: The algorithm sounds very nb and must be a good thing;The refresh logic of RecyclerVi ...

XML layout file <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center" android:orientation="vertical" > <TextView android:id="@+id/question_text_view" android:layout_width="wrap_conte ...

For Android apps on general mobile phones, the main interaction mode is click. After the user clicks, the App may update the UI in the page, open a new page, or initiate a network request. The Android system itself does not deal with repeated clicks. If users click multiple times in a short time, there may be problems such as opening multiple p ...

preface Now it is more and more difficult for Android junior and intermediate development engineers to find a satisfactory job. Of course, those with strength do not worry about a good job. If you happen to be a junior and intermediate engineer who wants to advance the direction of audio and video or is interested in NDK technology, you must b ...

Some time ago, due to the competition, I didn't have time to write a blog. Now I can finally make up an article. I always wanted to learn some knowledge of NDK development, but I didn't start it. There was an opportunity for NDK related projects. I consulted some materials and recorded some experience and methods I learned here. In fact, the ...

preface At present, the main functions of the mobile camera sdk have been basically developed, and the product has been online for a long time. Looking back on the development cycle, there are many knowledge points in the design of beauty camera, the realization of basic functions is relatively simple, and there are many ready-made open source ...

2.5.1 implementation of listview item multi layout Introduction to this section: This section is the last section of the ListView section, which brings you the implementation of ListView multi layout items. What is ListView Item multi layout? For example, QQ chat list: If it is made with a ListView, there are two different items on a L ...

GridView GridView can build a two-dimensional grid list, and its default constructor is defined as follows: GridView({ Key? key, Axis scrollDirection = Axis.vertical, bool reverse = false, ScrollController? controller, bool? primary, ScrollPhysics? physics, bool shrinkWrap = false, EdgeInsetsGeometry? paddin ...