Hi, Just a question about this,
What if you go to settings from "recent apps" ? (long press on home button). Then you don't end up in the home activity but in the one you were when you left. Carlos On Tuesday, March 29, 2011 6:19:17 AM UTC+2, Dianne Hackborn wrote: > On Mon, Mar 28, 2011 at 11:01 AM, Nathan Fig <[email protected]> wrote: > > > > 1) Does "clearing" the activity stack mean literally erasing it, or > > having the activities cycle through onCreate() and finish()? > > > > All activities in the stack being cleared will go through the lifecycle as if > they called finish(). The root activity will generally be kept as-is. > > > > 2) How is the root activity identified? Is it simply the one with the > > DEFAULT, LAUNCHER or MAIN intent filters? > > > > This is basically the first activity in the stack. The Intent is the Intent > used to start the stack. > > > 3) Launching from "home screen" in the documentation means the OS home > > screen or applications list, correct? I.e. from not within an > > application. > > > > It doesn't really matter -- it is just whoever sets > Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED. The standard launcher sets this > when launching an app from an icon. You can set it yourself if you want. > > > 4) Does clearTaskOnLaunch clear the activity stack whenever that > > activity is launched from the home screen, or just when that > > activity's process is started from the home screen? Because the docs > > indicate the former, but posts here indicate the latter. I guess this > > depends on what the definition of "launch" is? > > > > Whenever it is launched from the home screen. The fact that processes are > killed and restarted should be invisible to the user. > > > I've manipulated clearTaskOnLaunch in every way imaginable with > > absolutely no effect. I've placed it in my root activity in the > > manifest, then placed it in EVERY activity just to be sure, restarted > > my application after killing the process entirely, etc. My activity > > stack is simply not being cleared. > > > > Settings uses this as an example -- if you go in to settings, dig down a bit, > press home, and then launch settings again, you will end up in the home > activity instead of wherever you last went to. It just sets the flag on the > main activity of its app. > > > > -- > Dianne Hackborn > Android framework engineer > [email protected] > > Note: please don't send private questions to me, as I don't have time to > provide private support, and so won't reply to such e-mails. All such > questions should be posted on public forums, where I and others can see and > answer them. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
