we know that there are flags which we can add to our intent using the addFlags() method in our java code. Is there any way we can add these flags in the manifest file itself instead of writing this in java code. I need to add REORDER_TO_FRONT flag for one of my activities in the manifest.
How to achieve this ?
You can easily achieve this with using android:launchMode="singleTop" in the <activity> node of manifest, like this:
<activity
android:name=".ui.activities.MainActivity"
android:launchMode="singleTop">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
Note, that android:launchMode="singleInstance" as it is given by @jörg-eisfeld is not recommended option for general use, as it is stated in official documentation: https://developer.android.com/guide/topics/manifest/activity-element.html (see the android:launchMode section)