Android - How to start the exact same activity every time the app is opened up?

Question

In a nutshell, to give you an example, I basically have an app with 3 activities: Activity1 Activity2 StartActivity

StartActivity contains two buttons that correspon

Answer 1

Generally the way it works (from what I understand) is you use the BACK button to EXIT the activity, and the HOME button will essentially "minimize" the activity - bringing you back to whatever activity was left open.

While you should leave this functionality the same, you can override the home button to completely exit your application.

Answer 2

In your mainfest.xml file write like this.

<activity android:name=".StartActivity" android:label="@string/app_name"
                android:clearTaskOnLaunch="true">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>  

android:clearTaskOnLaunch="true" attribute automatically restart the activity.

Answer 3

I would think the solution to be destroying Activity1 and Activity2 onStop. This leaves the stack with only your StartActivity. You can call the finish method in Activity to terminate it programmatically at anytime.

Answer 4

You might look at the android:clearTaskOnLaunch activity attribute from the Manifest file : http://developer.android.com/guide/topics/manifest/activity-element.html

I think setting this attribute to "true" on your root activity does what you want.