Use android:launchMode="singleInstance" on your Activity element in the manifest.
http://code.google.com/android/reference/android/R.styleable.html#AndroidManifestActivity_launchMode On Jan 10, 8:22 am, "[email protected]" <[email protected]> wrote: > 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 activity from other application, just like from > http link, it will start another application instance again, not > launch the back ground one. How to avoid this case? I want only a > single instance. > (If I received an email with ahttp://www.google.com, click this link, > chose my application to open, it will create another instance) > > <application android:icon="@drawable/icon" > android:label="@string/app_name"> > > <activity android:name=".activity.A" > android:label="@string/app_name" > > > > <intent-filter> > <action android:name="android.intent.action.MAIN" /> > <category > android:name="android.intent.category.LAUNCHER" /> > </intent-filter> > <intent-filter> > <action android:name="android.intent.action.VIEW" /> > <category > android:name="android.intent.category.DEFAULT" /> > <category > android:name="android.intent.category.BROWSABLE" /> > <data android:scheme="http" > android:host="www.google.com"/> > </intent-filter> > </activity> > > <activity android:name=".activity.B" > android:label="@string/list" > </activity> > > <activity android:name=".activity.C" > android:label="@string/special" > </activity> --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
