Android应用程序窗口activity过程分析的相关内容

[帮助文档] Android端辅助通道收到推送通知后单击通知无法打开相应Activity的问题解决方案

问题描述Android端辅助通道收到推送通知后，单击通知无法打开相应的Activity。解决方案阿里云提醒您：如果您对实例或数据有修改、变更等风险操作，务必注意实例的容灾、容错能力，确保数据安全。如果您对实例（包括但不限于ECS、RDS）等进行配置与数据修改，建议提前创建快照或开启RDS日志备份等功...

[帮助文档] AndroidSDK中推送通知打开指定Activity时如何操作?

问题详述推送通知打开指定Activity时如何操作?解决方法打开指定Activity主要有两种方式。1、使用SDK打开Activity移动推送Android SDK是支持打开Activity功能的，此时只需要在推送时指定通知的打开方式即可。相关OpenApi代码可参考：PushRequestpush...

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[帮助文档] Android端推送通知打开指定Activity时如何获取推送通知参数

概述Android端推送通知设置打开方式为打开指定Activity时，如何在Activity中获取推送相关参数。Android端推送通知详细信息打开指定Activity时，在该Activity的onCreate()中调用如下代码获取指定参数：onCreate()Intent intent = get...

Android应用程序窗口（Activity）的窗口对象（Window）的创建过程分析

在前文中，我们分析了Android应用程序窗口的运行上下文环境的创建过程。由此可知，每一个Activity组件都有一个关联的ContextImpl对象，同时，它还关联有一个Window对象，用来描述一个具体的应用程序窗口。由此又可知，Activity只不过是...

Android应用程序窗口（Activity）的运行上下文环境（Context）的创建过程分析

在前文中，我们简要介绍了Android应用程序窗口的框架。Android应用程序窗口在运行的过程中，需要访问一些特定的资源或者类。这些特定的资源或者类构成了Android应用程序的运行上下文环境，Android应用程序窗口可以通过一个Context接口来访问它，这个Context接口也是我们在开发应...

Android应用程序窗口（Activity）与WindowManagerService服务的连接过程分析

Android应用程序窗口（Activity）的测量（Measure）、布局（Layout）和绘制（Draw）过程分析（上）

在前面一篇文章中，我们分析了Android应用程序窗口的绘图表面的创建过程。Android应用程序窗口的绘图表面在创建完成之后，我们就可以从上到下地绘制它里面的各个视图了，即各个UI元素了。不过在绘制这些UI元素之前，我们还需要从上到下地测量它们实际所需要的大小，以及对它们...

Android应用程序窗口（Activity）的测量（Measure）、布局（Layout）和绘制（Draw）过程分析（下）

ViewRoot类的成员函数invalidateChild首先调用另外一个成员函数checkThread来检查当前正在执行的是否是一个UI线程。如果不是的话，ViewRoot类的成员函数checkThread就会抛出一个异常出来。这是因为所有的UI操作都必须要在UI线程中执行...

Android应用程序窗口（Activity）的绘图表面（Surface）的创建过程分析

在前文中，我们分析了应用程序窗口连接到WindowManagerService服务的过程。在这个过程中，WindowManagerService服务会为应用程序窗口创建过一个到SurfaceFlinger服务的连接。有了这个连接之后，WindowManagerService服...

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更新时间 2023-04-02 09:01:31

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