Killing
An app transitions from running directly to not running (the red “Killing” arrow in Figure 6.1) only when it is forced to do so, as with the following conditions:
→ The user signs out (which includes shutting down or restarting the device) and the app hasn’t already been suspended.
→ The user invokes “End task” in Task Manager, or an equivalent command in a command-line tool such as TaskKill.
→ The app hangs, or the code it executes in response to suspension takes longer than 5 seconds, or the code it executes in response to launch/activation (while the splash screen is showing) takes longer than 15 seconds.
→ The app is under the debugger’s control and the developer ends the process in Visual Studio.
→ The app calls Application’s
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