App需要将自己的内容显示在屏幕上,所以App负责发起Surface创建请求,创建好Surface后, 就可以直接可以在canvas上画图等,最终都会保存到Surface里的buffer里,最后由SurfaceFlinger合成并显示。 System_Server进程 主要是其中的WindowManagerService, 负责接收APP请求,向SurfaceFlinger发起具体的请求创建Surface, 且WMS需要创建Surface...
Surface创建过程: ActivityThread.java 调用handleLaunchActivity 调用handleResumeActivity函数 addView调用到LocalWindowManager.java的addView函数 然后调用WindowManagerImpl.java的addView函数 创建ViewRoot(分成两个分支): 1、执行ViewRoot的构造函数,创建mSurface(!实现ViewRoot的Surface创建)(创建IWindow) 2、调用ViewRoot...
目标1:Activity的显示和Surface是如何关联上的? 一般来说,你能看到的一个窗口就是一个Surface,在之前发表过的文章中也介绍过Activity,Window,View之间的关系,大概可以理解为一个Activity创建出一个可视化界面,而这个界面就可以理解为一个Surface,Activity在这个Surface上不断绘制,从而看到Android终端上绚丽的界面。 在之...
When an app is open, swipe up from the bottom of the screen, then drag it to the middle and let go.Download apps from the Google Play Store Because Surface Duo runs on Android, you can choose any Android apps and games in the Google Play Store. 1. Tap Play Store on your Home scre...
· 详细分析Surface。 · 详细分析SurfaceFlinger。 本章涉及的源代码文件名及位置: · ActivityThread.java framework/base/core/java/android/app/ActivityThread.java · Activity.java framework/base/core/java/android/app/Activity.java · Instrumentation.java ...
Play music on your Surface and Android Play music from your favorite music services on your Surface and Android so you never miss a beat. On your Surface, download the music app you want to use from the Microsoft Store. On your Android device—including Surface Duo—downloa...
1.新建一个Activity,同时调用其onCreate等函数,我们知道在onCreate函数中,一般会调用setContentView(View)去给Activity添加一个View; 2.调用handleResumeActivity。 下面逐步分析其中发生的事情, create new Activity Activitya=performLaunchActivity(r,customIntent);privateActivityperformLaunchActivity(ActivityClientRecordr...
Java documentation for android.telecom.Connection.VideoProvider.onSetPreviewSurface(android.view.Surface). Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License. Ap...
方式一:注意可能导致的问题 You can't clear it withCanvasdraw commands because that will prevent you from playing movies on that surface again. 1Paint paint =newPaint();2paint.setColor(0xff000000);3Canvas canvas = surface.lockCanvas(null);4canvas.drawColor(0x00000000, PorterDuff.Mode.CLEAR);5ca...
android通过jni实现surface渲染 android ui渲染流程 一、目的:主要核心是探究UI如何进行具体绘制 1.UI从数据加载到具体展现的过程: 2.进程间的启动协作: 二、如何加载到数据 1.应用从启动到onCreate的过程: 2.Activity生产过程详解: 1) AMS启动流程: [21版本]...