Android Weekly Issue #502

Fixing simpleperf broken records

simpleperf

Simpleperf is a native CPU profiling tool for Android. 

It can be used to profile both Android applications and native processes running on Android. 

It can profile both Java and C++ code on Android. 

Non-fatal crashes: the crash rate that matters

非crash的错误其实也很影响用户体验.

A Tale of Two Composable Default Text Sizes

• ClickableText来自于Compose Fundations.
• Text来自于Compose Material.

它们俩的字体大小的默认值是不同的, 文章对比了它们字体大小在代码中的来源.

REMEMBER, REMEMBER, JETPACK COMPOSE

作者主张慎用remember.

• remember不能处理屏幕旋转, 要用rememberSaveable.
• 用rememberSaveable要写Saver, 数据太大的话要持久化.

App widgets in Android with Glance

Sample: https://github.com/husaynhakeem/android-playground/tree/master/GlanceSample

用的是官方api: https://developer.android.com/jetpack/androidx/releases/glance

是2021年底才发布的:
https://android-developers.googleblog.com/2021/12/announcing-jetpack-glance-alpha-for-app.html

Introduction to Jetpack DataStore

Data Store的介绍. 和SharedPreferences的对比, 和Room的对比.

Jetnews for every screen

JetNews的多屏幕适配.

Authenticating on Android with the AppAuth Library

AppAuth Library: https://github.com/openid/AppAuth-Android

解释了原理(有图)并且有详尽的例子.

Idea to Game in 24 hours with Firebase

受到Wordle的启发, 作者在24小时内实现了: https://pictle.web.app/

另外作者分享了一些他的side projects经验.

还有他用到的工具.

Choosing the Right Transitions

关于动画的用户调研.

Automate library publishing with GitHub Actions

用GitHub Actions做CI, 可以存环境变量, 发布库.

Becoming a Better Writer as a Software Engineer

如何提高技术写作.

5-15 updates. 这个主意不错唉. 花15分钟写一个别人5分钟就能读完的东西.

后面还有一些课程和学习资源.

Develop a Password Strength Calculator Application for Android

一个密码强度计算器.

Navigating in Compose: Criteria

如何在多种navigaion方案中做出选择.

这篇文章讨论了一些判断标准.

Code

• https://github.com/akshay2211/DrawBox
• https://github.com/boguszpawlowski/Chassis 一个validation的小库, 感觉写起来也不是很简洁.
• https://github.com/microsoft/surface-duo-compose-sdk/tree/main/WindowState

Video

• Kotlin doc: Dokka: https://www.youtube.com/watch?v=GesMbOt5hIo