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《RxJava响应式编程》

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online_admin aixure 发表于 2023-1-22 13:48:12 | 显示全部楼层 |阅读模式 打印 上一主题 下一主题
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内容简介[url=]编辑[/url][url=] 播报[/url]
响应式编程是一种基于异步数据流概念的编程模式，在开发手机App、Web App时，要想保证对用户请求的实时响应，给用户带来流畅的体验，响应式编程是一个不错的选择。RxJava则是这种编程模式的Java实现。本书主要介绍如何使用RxJava进行响应式编程。全书一共6章，从响应式编程与RxJava的概念，到RxJava的操作符和源码，以及各种Scheduler的特点和适用场景，均做了较细致的讲解。本书还用一章的篇幅给出了几个RxJava的实用案例，帮助读者理解概念，上手操作。本书适合RxJava的初学者，以及对RxJava有初步了解想要进一步深入学习的读者阅读。 [1]

图书目录[url=]编辑[/url][url=] 播报[/url]
第1章 走进RxJava的世界 .......................................................................................................... 1
1.1 响应式编程.......................................................................................................................... 1
1.2 什么是RxJava................................................................................................................ 4
1.3 Observable和Subscriber ............................................................................................... 5
1.3.1 Single：单个数据的生产者 ........................................................................................... 8
1.3.2 Completable：单个事件的生产者 .................................................................................. 9
1.4 在Android工程中引入RxJava .................................................................................. 11
第2章 RxJava中的操作符 ..................................................................................................... 12
2.1 创建Observable的操作符 .......................................................................................... 12
2.1.1 range ........................................................................................................................... 13
2.1.2 defer和just ................................................................................................................. 13
2.1.3 from ............................................................................................................................ 16
2.1.4 interval ........................................................................................................................ 17
2.1.5 repeat和timer ............................................................................................................. 19
2.2 转化Observable的操作符 .......................................................................................... 21
2.2.1 buffer .......................................................................................................................... 21
2.2.2 flatMap ....................................................................................................................... 23
2.2.3 groupBy ...................................................................................................................... 25
2.2.4 map............................................................................................................................ 28
2.2.5 cast ............................................................................................................................. 29
2.2.6 scan ............................................................................................................................ 31
2.2.7 window ....................................................................................................................... 32
2.3 过滤操作符 .................................................................................................................. 35
2.3.1 debounce ..................................................................................................................... 35
2.3.2 distinct ........................................................................................................................ 39
2.3.3 elementAt .................................................................................................................... 40
2.3.4 filter ............................................................................................................................ 41
2.3.5 first和last ................................................................................................................... 43
2.3.6 skip和take，skipLast和takeLast ................................................................................ 45
2.3.7 sample和throttleFirst .................................................................................................. 46
2.4 组合操作符 .................................................................................................................. 48
2.4.1 combineLatest .............................................................................................................. 48
2.4.2 join和groupJoin ......................................................................................................... 51
2.4.3 merge和mergeDelayError............................................................................................ 55
2.4.4 startWith...................................................................................................................... 58
2.4.5 switch ......................................................................................................................... 59
2.4.6 zip和zipWith .............................................................................................................. 61
2.5 错误处理操作符 .......................................................................................................... 64
2.5.1 onErrorReturn .............................................................................................................. 64
2.5.2 onErrorResumeNext ..................................................................................................... 66
2.5.3 onExceptionResumeNext .............................................................................................. 67
2.5.4 retry ............................................................................................................................ 70
2.6 辅助操作符 .................................................................................................................. 72
2.6.1 delay ........................................................................................................................... 72
2.6.2 do ............................................................................................................................... 74
2.6.3 materialize和dematerialize .......................................................................................... 78
2.6.4 subscribeOn和observeOn ............................................................................................ 80
2.6.5 timeInterval和timeStamp ............................................................................................ 82
2.6.6 timeout ........................................................................................................................ 84
2.6.7 using ........................................................................................................................... 87
2.7 条件操作 ...................................................................................................................... 90
2.7.1 all ............................................................................................................................... 90
2.7.2 amb............................................................................................................................ 92
2.7.3 contains ....................................................................................................................... 93
2.7.4 isEmpty ....................................................................................................................... 94
2.7.5 defaultIfEmpty ............................................................................................................. 95
2.7.6 sequenceEqual ............................................................................................................. 97
2.7.7 skipUntil和skipWhile ................................................................................................. 98
2.7.8 takeUntil和takeWhile ............................................................................................... 100
2.8 聚合操作符 ................................................................................................................ 102
2.8.1 concat ....................................................................................................................... 102
2.8.2 count ......................................................................................................................... 104
2.8.3 reduce ....................................................................................................................... 105
2.8.4 collect ....................................................................................................................... 106
2.9 与Connectable Observable相关的操作符 ............................................................... 107
2.9.1 publish和connect ...................................................................................................... 108
2.9.2 refCount .................................................................................................................... 110
2.9.3 replay ........................................................................................................................ 111
2.10 自定义操作符 .......................................................................................................... 114
2.10.1 lift ........................................................................................................................... 115
2.10.2 compose .................................................................................................................. 117
第3章 使用Scheduler进行线程调度 ................................................................................. 119
3.1 什么是Scheduler ....................................................................................................... 119
3.2 Scheduler的类型 ....................................................................................................... 121
3.2.1 computation ............................................................................................................... 121
3.2.2 newThread ................................................................................................................. 122
3.2.3 io .............................................................................................................................. 122
3.2.4 immediate .................................................................................................................. 123
3.2.5 trampoline ................................................................................................................. 123
3.2.6 from .......................................................................................................................... 123
3.3 总结 ............................................................................................................................ 125
第4章 RxJava的实现原理 ................................................................................................... 126
4.1 数据的发送和接收 .................................................................................................... 126
4.1.1 创建Observable的过程 ............................................................................................. 127
4.1.2 订阅的过程 ............................................................................................................... 128
4.2 操作符的实现 ............................................................................................................ 130
4.2.1 lift的工作原理 .......................................................................................................... 130
4.2.2 map的工作原理 ........................................................................................................ 132
4.2.3 flatMap的工作原理 ................................................................................................... 135
4.2.4 merge的工作原理 ..................................................................................................... 136
4.2.5 concat的工作原理 ..................................................................................................... 139
4.3 Scheduler的工作原理 ............................................................................................... 144
4.3.1 Scheduler源码 .......................................................................................................... 144
4.3.2 subscribeOn的工作原理 ............................................................................................ 152
4.3.3 observeOn的工作原理 .............................................................................................. 156
第5章 RxJava的应用实例 ................................................................................................... 161
5.1 计算π的值 ................................................................................................................ 161
5.2 图片的三级缓存 ........................................................................................................ 165
5.2.1 内存缓存 .................................................................................................................. 167
5.2.2 外存缓存 .................................................................................................................. 169
5.2.3 网络缓存 .................................................................................................................. 172
5.2.4 缓存管理 .................................................................................................................. 173
5.2.5 封装.......................................................................................................................... 176
5.2.6 运行测试 .................................................................................................................. 178
5.3 结合Retrofit和OkHttp访问网络 ............................................................................ 181
5.3.1 卡片类的定义 ........................................................................................................... 181
5.3.2 配置OkHttp .............................................................................................................. 183
5.3.3 配置Retrofit.............................................................................................................. 186
5.4 使用RxLifecycle避免内存泄漏 ............................................................................... 189
5.4.1 修改demo工程 .................................................................................................... 189
5.4.2 绑定其他生命周期 ................................................................................................ 191
5.5 使用RxBinding绑定各种View事件....................................................................... 193
5.5.1 绑定点击事件 ...................................................................................................... 194
5.5.2 绑定TextWatcher .................................................................................................. 196
5.5.3 绑定OnPageChangeListener ................................................................................... 197
第6章 RxJava 2的改进 ....................................................................................................... 200
6.1 Observable和Flowable ............................................................................................. 200
6.2 null的使用 ................................................................................................................. 203
6.3 Single和Completable ................................................................................................ 205
6.4 Maybe ......................................................................................................................... 207
6.5 Subscriber ................................................................................................................... 208
6.5.1 DefaultSubscriber .................................................................................................. 209
6.5.2 ResourceSubscriber ................................................................................................ 210
6.5.3 DisposableSubscriber ............................................................................................. 211
6.6 Action和Function ..................................................................................................... 212
6.7 错误处理 .................................................................................................................... 214
6.8 Scheduler .................................................................................................................... 216

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