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We often use generics in Android development, such as List, Map, Set, Adapter, etc. generics are also supported in Kotlin. What is generics? Generics: special types that postpone the type specific work until the object is created or the method is called. 1, Defining generic methods in Kotlin Defining generics in Kotlin is the same as Java in ...

background In the development process of using fluent in depth, we encountered serious business code coupling and poor code maintainability, such as mud. We need a unified application framework to get rid of the current development dilemma, which is also a virgin land vacant in the field of fluent. Fish Redux is an upper application framework ...

What is a Lambda expression?Lambda expressions are actually anonymous functions. In fact, a function is a function. An anonymous function is an anonymous function code. In Kotlin, function also appears as a type. Although in the current version, the flexibility of function type is not as flexible as Python, it can also be assigned and passed, w ...

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Activity lifecycle Activities in Android can be superimposed, which also means that each activity should have a corresponding life cycle. The onCreate method is used every time, which is also an important method in the life cycle function The person in charge of each activity is called the activity stack. Obviously, one activity can be superi ...

Four basic layouts 1. Linear layout Thread layout is a very common layout. This part will arrange the controls it contains in a linear direction at one time. The linear layout is specified using LinearLayout, and the android:orientation attribute is used to specify whether to arrange horizontally or vertically: android:orientation: vertical ...

In the latest Android SDK, startActivityForResult has been marked as an outdated method, instead of using registerForActivityResult. 1. Why use registerForActivityResult? In the previous way of using startActivityForResult, you need to pass a requestCode. When the destination interface returns to this interface, you can use the requestCode to ...

Preface In my recent articles about preparing for an Android interview, I found that Framework is a very important point that many large companies value. As shown in the picture, this is a conversation within one of our technical exchange groups_ In the Android technology article I wrote a while ago, I read thousands of articles about Fram ...

Introduction to Dokit DoraemonKit can quickly enable your business test code to be managed and accepted uniformly here.DoraemonKit has many commonly used tools built in to avoid duplicate implementations. With one access, you will have a powerful collection of tools.With dokit platform, with interface Mock, health check-up, file synchronizatio ...

start During the "golden three silver four" season, there are always many people looking for the same thing called "Mianjing". In fact, it is a specific question, and then sharpen their guns and "recite" the answer. If this is always the case, I believe your ability will not be improved, even if you work for three ...