[android-developers] How to avoid my application to launch a new another instance

I have an application with activity A, B, C. A is MAIN/LAUNCHER activity. steps: 1. Start it by click the icon from home, A launched, click a menu, activity B is launched; 2. press HOME key to return home page 3. click my application icon again, it will return the activity B. 4.But if I start A

[android-developers] How to avoid my application to launch a new another instance?

I have an application with activity A, B, C. A is MAIN/LAUNCHER activity. steps: 1. Start it by click the icon from home, A launched, click a menu,activity B is launched; 2. press HOME key to return home page 3. click my application icon again, it will return the activity B. 4.But if I start A

[android-developers] How to avoid my application to launch a new another instance?

I have an application with activity A, B, C. A is MAIN/LAUNCHER activity. steps: 1. Start it by click the icon from home, A launched, click a menu, activity B is launched; 2. press HOME key to return home page 3. click my application icon again, it will return the activity B. 4.But if I start A