Hello,
In my Android app, I have a main activity that serves as an entry
point to my application, which is configured in my manifest file like
this :
<activity android:name=".Main"
android:label="@string/app_name"
android:screenOrientation="portrait"
android:alwaysRetainTaskState="true"
android:launchMode="singleTask">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" /
>
</intent-filter>
</activity>
So for a particular use case, lets say a user starts up the app from
the home screen by clicking the icon inside the application launcher.
After starting the app, the user navigates from the Main activity to
activity A and then finally to activity B. At this point, the user
decides to check their facebook, so they click the home button to put
my app in the background, and launches the facebook app.
After checking their facebook, the user wants to return to my app, so
they press the home key, and launch the application from the
application launcher (just like they did the first time it was
launched).
When a user returns to my app, I want the app to return to the last
activity the user was at when the app was put into the background,
which in this case is activity B. In the manifest file, I have set
alwaysRetainTaskState=true to make sure the OS doesn't kill my app's
activities.
Now to my question: how do I get the behavior I described above?
Whenever I click my app's icon, it always starts at the Main activity,
no matter what. I think this is because of the category.LAUNCHER
attribute. I have tried android:launchMode=singleTask, but it hasn't
made a difference; it always starts at Main.
If someone could clarify intent filters, launch modes, and tasks, that
would be great!
Thanks,
DK
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