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androidmenusequencebootlauncher

Android bootstrap

Considering an ICS device's boot sequence,
what is the android side (java, not talking about the underlying linux system) bootstrap application stack? I know that the application that realizes the bottom ICS menu bar is SystemUI.apk, but what has been loaded before?
Who (if any) starts up without receiving any broadcast intent?
May be it is the ActivityManager that after loaded starts Launcher and SystemUI?

Thanks in advance
L

Solution

  • What do you mean by 'application stack' and what are you trying to do? Generally, the system server starts all services and the activity manager. Then the activity managers sends and Intent.CATEGORY_HOME which results in the launcher starting. When you press an icon on the launcher, it calls the activity manager, which in turns talks to zygote, which forks itself to create a process for the new app.