kotlin launch

Kotlin is integrated with the Android SDK (KAD 05) and kotlinandroid By Antonio Leiva Time: Dec 19,201 6 Link: https://antonioleiva.com/kotlin-integrations-android-sdk/ Using the Kotlin language not only simplifies your code, but also simplifies calling Java code from Kotlin. How does this work? Using some common st

Use Kotlin to perform function operations on ViewGroup views. Original article title: Functional operations over Views in ViewGroup using Kotlin Link: http://antonioleiva.com/functional-operations-viewgroup-kotlin/ Antonio Leiva (http://antonioleiva.com/about) Original article published: Set, iteration, array, sequence... all these share a set of usefulFunctio

Function-based Android programming (II): Set Operations in the Kotlin language, androidkotlin Original article title: Functional Android (II): Collection operations in Kotlin Link: http://antonioleiva.com/collection-operations-kotlin/ Antonio Leiva (http://antonioleiva.com/about) Original article published: Lambda expressions are an outstanding tool to simplify

In Java, you can use {} to create an anonymous block of code, and the code block will be executed normally, and it doesn't seem to have any effect other than changing the scope. But it is not possible to do so in Kotlin.In fact, we all know that a function must be associated with a memory address, and an anonymous block of code is actually an anonymous function. In Kotlin, you typically use the run function to run an anonymous block of code.As follows

Launch image is the app's startup image, Launchscreen is the function after iOS8, both can set the app's startup picture. IOS8 after the official recommended the use of launch Screen.xib, in the xib through the ImageView set up the image, both methods are more suitable for development use.Launch Image ModeLaunch image mode should be the most common way, first you need to create a new

Kotlin Native, kotlinnative Kotlin Native is not a concept of Jni. It does not only need to interact with underlying Code such as C and C ++, but also needs to bypass the Jvm to directly compile the machine code for the system to run. That is to say, Kotlin is about to discard the Java crutches! In fact, when I first saw the Native name, I naturally thought of

Who said the interface cannot have code? -- Kotlin interface introduction (KAD 26), kotlinkad By Antonio Leiva Time: Jun 6, 2017 Link: https://antonioleiva.com/interfaces-kotlin/ Compared with Java, the Kotlin interface allows you to reuse more code. The reason is very simple:You can add code to your interface. If you have tried Java 8, this is very similar.

The Reified type of Kotlin: how to use this type (KAD 14) in the function, kotlinreified By Antonio Leiva Time: Mar 2 and 2017 Link: https://antonioleiva.com/reified-types-kotlin/ One of the most annoying restrictions for Java developers is that they cannot directly use types when using generics. The common solution is to pass classes in the form of function parameters, which makes the code more complex

optional when the return type can be inferred by the compiler.fun double(x:Int)=x*2Explicitly specifying the return typeWhen a function has a block of code, it must explicitly indicate the return type, which is not explicitly specified if it is returned to the unit. Kotlin cannot infer the return type when the function has a block of code, because there is a complex flow of control in the code, and the return type is not intuitive to the reader.Non-q

Kotlin is a new JVM-based language that can be seen as the extended language of Java, developed by JetBrains, who first saw him in the company's Android team when they saw them using the Kotlin to develop Android, suddenly feeling curious, and then slowly studied the prophecy.Why to develop and use the Kotlin language, the official saying is:Concise safeversatile

For Loop The For loop can traverse any object that provides an iterator (iterator), with the following syntax: Fun Main (args:array The loop body can be a block of code: Fun Main (args:array } As mentioned above, for can iterate through any object that provides an iterator.If you want to traverse an array or a list through an index , you can do this:Indices Fun Main (args:array Note that this "traverse over Interval" is compiled into an optimized implementation without creating additio

Article DirectoryScene"For" loopIteration MapSummary Scenario What is the difference between the "for" loop and the iteration map in Kotlin and the one we know in Java, and what are the better representations? "for" Loop Kotlin "for" Loop structure: for (I in a.. bA represents the starting value, and B represents the end value ... Represents the interval. For example (i in 1..100)Note: The interval is inclu

When working with projects built with XCODE6, there are times when a situation occurs under the iOS7 simulatorThere will be black edges above the navigation bar and below Tabbar.And there will be a warning:Applications using Launch screens Files and targetting IOS 7.1 and earlier need to also include a Launch Image in an Asset Catalog.Solution:1. Select launch im

Three Tips for App Store review and launch: appstore review and launch How can I make the APP pass the review and go online on the App Store smoothly? Now, let's take a look at the three tips that I have provided for you to review the App Store online. 1. You must first go to the App Store and then to other App markets. Why? Because the app store is strictly audited, if the app name is rejected, it can

IOS APP launch process and iosapp launch process A colleague asked me the question of uploading an APP two days ago. I found some details and sorted them out here. I am a lazy ape. I have been learning about nutrition from the blogs of many great gods, but I am lazy at writing my own. More and more people feel that blogging is very helpful to a developer, so they will try to write in the future. The followi