First Activity gets closed in background from Second activity

Question

I am facing one issue and its a bit weird. My case is, I have two Activity A and B. A is my launcher activity so when i open app A is presented. Now from button click i start another activity B.

Now i am placing my app in background by pressing home button of the phone. and coming again in the app from recent. Now i am in activity B when my app comes to foreground.

Now when i press back button my application is closing instead of going back to Activity A.

Why is this happening can anyone please explain and also how can i solve this?

Thanks in advance.

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity android:name=".MainActivity"
              android:launchMode="singleInstance"
              android:screenOrientation="portrait"
              android:noHistory="false">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <activity android:name=".SecondActivity"
              android:screenOrientation="portrait">
    </activity>
</application>

Possible duplicate of [Activity in background gets killed when Home button is pressed](https://stackoverflow.com/questions/39100905/activity-in-background-gets-killed-when-home-button-is-pressed) — Strohhut, Oct 23 '19 at 08:50
check weather you are destroying the activity A or using flag on button click. — Habeeb Rahman, Oct 23 '19 at 08:50
@Mr.vdtarsariya : Do you have an answer to the above question? — Hardik Chauhan, Oct 23 '19 at 08:57
@Mr.vdtarsariya I would say to please take that language elsewhere, but there really is no place for that kind of language at all — Nikos Hidalgo, Oct 23 '19 at 08:58
Please provide some relevant code so we can have a look, especially the part where you launch the second activity, and possibly what you have in the onDestroy of A and onResume of B — Nikos Hidalgo, Oct 23 '19 at 09:00
@HardikChauhan You better pasot your code. Without viewing your code we cant respond. — Habeeb Rahman, Oct 23 '19 at 09:02
In activity its just a simple code for calling another activity by intent. — Hardik Chauhan, Oct 23 '19 at 09:13

score 3 · Answer 1 · answered Oct 23 '19 at 09:14

Remove android:launchMode="singleInstance" from

<activity android:name=".MainActivity"
              android:launchMode="singleInstance"
              android:screenOrientation="portrait"
              android:noHistory="false">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

First Activity gets closed in background from Second activity

1 Answers1