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本项目专注于提供 Jetpack 核心组件 Java vs Kotlin 1:1 对照示例 —— This project focuses on providing comparative examples of the core components of Jetpack from Java to Kotlin.

License: GNU General Public License v3.0

Java 75.56% HTML 14.08% Kotlin 10.36%
jetpack kotlin java android navigation databinding livedata jetpack-navigation jetpack-android jetpack-lifecycle-components

jetpack-from-java-to-kotlin's Introduction

 

项目简介

很高兴见到你!

本项目 专注于提供 Jetpack 核心组件 从 Java 到 Kotlin 的 对照示例

换言之,通过本项目 精心设计的场景 和 精简的代码,你可迅速了解到 在引入了 Jetpack 的项目中 "到底写了什么",以及 Kotlin 相较 Java 写法的差异之所在

在简单感受一下项目源码后,如你开始对 "具体该怎么写"、"为什么要这样写" 产生了一丝好奇心,想要继续深入探索,那我们的愿望也就达到了 😉  

组件示例入口 列表 - 详情 列表 - 编辑 - 定位
Untitled.gif Untitled3.gif Untitled2.gif

 

后置进阶

在了解完本项目后,若你觉得胃口大开,别着急 😉

以下是两位作者分别长期维护的 Jetpack 进阶项目:

《Jetpack MVVM 最佳实践》

该项目专注于解析 Jetpack 高频核心组件,曾被某对标阿里 P7 架构师拿去给 2300 名学员讲课,通过它你可迅速理解状况并应用于工作或面试中。

《Kotlin Jetpack 背包》

该项目专注于跟进 Jetpack kotlin 最新技术动向,目前已点到为止地提供数十个技术点示例代码, 通过它你可在要求使用 kotlin 的工作中随时查阅、随取随用。

 

版权声明

本项目的场景、外观、代码设计,由作者 KunMinXFlywith24 完成,作者对此享有著作权,任何个人或组织,未经作者本人授权,不得将该项目的设计用于写书、卖课等商业用途。

Copyright © 2020-present KunMinX & Flywith24

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jetpack-from-java-to-kotlin's Issues

Overload resolution ambiguity

Kotlin 1.3.71 build error ,msg Overload resolution ambiguity

  public open fun containsKey(key: ViewModelStore): Boolean defined in java.util.HashMap
  public open fun containsKey(key: ViewModelStore!): Boolean defined in java.util.HashMap

fun getContentIfNotHandled(viewModelStore: ViewModelStore): T? {
return if (map.containsKey(viewModelStore)) {

Here's a solution

return if (map.contains(viewModelStore)) {

发布动态选择定位那里点击选择后返回闪退

java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid view holder adapter positionViewHolder{5d146ff position=0 id=-1, oldPos=0, pLpos:-1 scrap [attachedScrap] tmpDetached no parent} androidx.recyclerview.widget.RecyclerView{b308500 VFED..... .F....ID 0,160-720,1344 #7f08012a app:id/rv}, adapter:com.kunminx.jetpack_java.common_ui.adapter.LocationAdapter@a2ed139, layout:androidx.recyclerview.widget.LinearLayoutManager@4c4a37e, context:com.kunminx.jetpack_java.sample_01_lifecycles.ui.LifecycleLocationActivity@bdb7196

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