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  • Jetpack

    千次阅读 2018-08-15 08:42:56
    Jetpack 官方开发框架,Google要一同江湖了。 详解 WorkManager Android8.0时代的后台任务JetPack-WorkManager详解
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  • JetPack

    千次阅读 2019-06-20 15:57:00
    最近闲来无事,写个blog吧,写什么呢,想了想还是写使用了有很长一段时间的JetPack吧,我个人还是很喜欢这套框架的,编码量少,减少样板代码,数据变化动态更新ui,管理生命周期,减少内存溢出,巴拉巴拉等等,哈哈 ...

    最近闲来无事,写个blog吧,写什么呢,想了想还是写使用了有很长一段时间的JetPack吧,我个人还是很喜欢这套框架的,编码量少,减少样板代码,数据变化动态更新ui,管理生命周期,减少内存溢出,巴拉巴拉等等,哈哈

    Jetpack是一系列库、工具、架构组成的,帮助开发人员快速方便的构建Anroid App。

    Jetpack的全家福

    è¿éåå¾çæè¿°

    Architecture:

    设计稳健,可测试,易维护

     

    UI:

    界面组件,让您的应用使用起来不仅轻松而且愉快

     

    Foundation:

    基础组建可供横向功能,向后兼容,支持kotlin语言

     

    Behavior:

    行为组建可帮助您的应用与标准组件相结合

     

    对于没有使用过Jetpack开发的同学看着Architecture可能比较陌生,其他应该还是眼熟的

    下面主要介绍一下Architecture里每个组件的作用

    1.Databinding这个组件是将UI与源数据绑定起来,可以减少大量的定义view findViewById 以及各种setXX

    2.Lifecycles观测Activity和Fragment的生命周期变化的,主要采用了观察者模式和注解的方式来实现的,内部定义了一个无UI的ReportFragment来观测生命周期然后,然后发射Event,获取当前的生命周期状态通过State枚举类,对这个组件感兴趣的同学可以去读一下源码,里边的几个核心类是Lifecycle LifecycleOwner LifecycleRegister等

    3.LiveData当数据更改的时候可以动态的通知试图,LiveData是生命周期感知的,当处于处于后台运行,或者压入栈中的时候即使数据更改了,也不会通知视图的,在主线程中跟新数据的使用setValue,在子线程中更新数据的时候使用postValue,当生命周期从不可见到可见的时候,可以收到最新数据

    4.Room是基于Sqlite封装的数据库,相对于sqite更容易上手,不用写各种sql语句,通过注解的方式创建表、操作数据库等,易于歉意,易于测试,支持RxJava,可配置

    5.ViewModel

    关注生命周期的方式管理界面的相关数据,防止内存泄漏,ViewModel里是处理数据相关的内容,里边不要有Activity或者Fragment相关的Context,如果需要用到context可以挤成AndroidViewModel,ViewModel可以多个framgent共享同一个ViewModel来实现数据共享

     

     

     

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  • jetpack

    2019-12-26 12:17:06
  • <div><p>This change helps show the user which Gutenberg blocks are powered by Jetpack by putting a little Jetpack icon in the corner of the block's editor icon. <h4>Changes proposed in this Pull ...
  • t affect the Jetpack connection or other Jetpack-connection-powered plugins, I think we can all agree on that.</li><li>If both the plugin and Jetpack are installed, and the user explicitly disconnects...
  • Automattic\Jetpack\Sync\Modules\Module' not found in /home/wp_fwtp7j/curofit....
  • The new Lazy Images feature of Jetpack actually was built with <a href="https://github.com/Automattic/jetpack/blob/7c3d69bbf27e761e515d758fcdd6fbb6199e5836/modules/lazy-images/lazy-images....
  • <div><p>Just taking a look at ManageWP and noticed that a lot of non-jetpack banners have a way of showing up within our dashboard page and possibly confusing customers. <p>If I didn't know better...
  • <div><p>So I had jetpack plugin installed on my WordPress setup and due so some connection issue, I reinstalled the plugin. Turns out that after installing the plugin and clicking on set up jetpack we...
  • hi_jetpack 大力推荐移动端架构师成长体系课 本仓库是Jetpack专栏课程源码,专栏详情请移步慕课网 项目中的 .puml文件是组件的架构图示,详情请参考AndroidStduio with plantUml ├── AppGlobals.kt ├─...
  • Jetpack error.

    2020-11-28 14:31:49
    <div><p><strong>I'...<pre><code> [Mon Nov 03 12:45:05 2014] [warn] [client 209.15.21.135] mod_fcgid: stderr: ...Automattic/jetpack</p></div>
  • <div><p>There is a package manager for R called <a href="https://github.com/ankane/jetpack">jetpack</a> that safely installs global and local R packages. <p>It doesn't seem to currently directly ...
  • <ol><li>On sites without Jetpack Backup or Scan, a prompt to upgrade should show.</li><li>On sites with Jetpack Backup but not Scan, the card should refer to configuring only Jetpack Backup.</li><li>...
  • <ul><li>Configure constants for the new plans that are part of the Offer Reset project: Jetpack Security Daily, Jetpack Security Real-Time, and Jetpack Complete.</li><li>Enable these plans in the My ...
  • <p>For example, the AMP plugin includes a <code>vimeo</code> shortcode as part of its <code>AMP_Vimeo_Embed_Handler</code> for historical reasons, but over time more and more Jetpack code has been ...
  • #message.jp-connect .jetpack-install-container .download-jetpack { padding: em(12px, 21px) em(18px, 21px) em(8px, 21px) em(12px, 21px); } </code></pre> <p>As you know this doesn't work and will ...
  • Can not connect Jetpack

    2020-12-02 06:26:06
    ve opened a case with Jetpack support, but I'm curious if this might be a Project Nami issue... <p>I'm using Project Nami 1.6.1 installed into Azure using the PN installer. <p>Below is the ...
  • Remove Jetpack blocks CDN

    2020-11-27 14:21:04
    <div><p>The Jetpack blocks specific CDN is not widely used for development and has been superseded by local block code. Remove it. <p>Supersedes #10293 <p>Related changes: D19308-code <h4>Changes ...
  • <ul><li>The <code>jetpack.json_api</code> and <code>jetpack.testConnection</code> endpoints should only be available when the Jetpack plugin is active. Check whether the Jetpack class exists before ...
  • Package Jetpack blocks

    2020-11-28 19:27:41
    <ul><li>Share blocks using Jetpack packages</li></ul> <h4>Testing instructions: <ul><li>Use the gif block</li><li>It should still work</li></ul> <p>Sample block: ...
  • Jetpack 2.3

    2020-11-30 11:19:31
    <div><p>Compiling under Jetpack 2.3 resulted in the following error. deepQLearner.cpp:13:18: fatal error: luat.h: No such file or directory. <p>I did try the pre-built package for Jetpack 2.2, and ...
  • <div><p>Recently I received an e-mail notifying me I had a new subscriber (www.midliferevelations.com). I've received these e-mails before and <em>usually</em> the new ...Automattic/jetpack</p></div>
  • <div><p>Synopsis: Add WordAds functionality into Jetpack to allow Jetpack users to sell advertising on their sites <p><strong>Responsible:</strong> <p>Outstanding: <ul><li>[x] Finalize Settings ...
  • Jetpack sitemap conflict

    2020-11-27 14:43:32
    <p>When JetPack and Yoast SEO are both installed there is a potential double XML sitemap issue. where <em>sitemap.xml</em> is used by JetPack and <em>sitemap_index.xml</em> is used by Yoast SEO. <h2>...
  • <ul><li>Block now has Jetpack namespace, eg <code>jetpack/donations</code></li><li>Text domain updated from <code>full-site-editing</code> to <code>jetpack</code></li><li>editor styles namespaced with...
  • m running the <a href="https://github.com/Automattic/jetpack-beta">Jetpack Beta</a> plugin on a multi-site installation, and came across a fatal error that comes from WPSC trying to use a file/...
  • <div><p>We currently have a few endpoints were users can disconnect Jetpack, and each of those leads to a different exit experience. <p>The biggest problem, however, is that none of those surface the ...
  • <ul><li>This implements threat notifications from Jetpack Scan in two places, the admin bar, and the Jetpack dashboard.</li></ul> <h4>Is this a new feature, or does it add/remove elements to an ...

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