Articles → ANDROID → Activity-Alias Tag In Manifest File In Android

Activity-Alias Tag In Manifest File In Android

In this tutorial, we will discuss activity-alias tag in android.

Purpose

Activity-alias specifies the alias of an activity.

Syntax

<activity-alias android:name="alias_activity_name" android:targetActivity="activity_name"></activity-alias>

Scenario Of Using Activity-Alias

Let us create an android application with "MainActivity" as start-up activity.

<activity android:name=".MainActivity"><action android:name="android.intent.action.MAIN" /><category android:name="android.intent.category.LAUNCHER" /></intent-filter></activity>

Post development, client has installed the application and create an application short-cut.

Let us assume that due to the new client requirement, start-up activity is changed to "SecondActivity". Because of this change, the application short-cut is no longer valid. The reason is, you have changed the start-up page.

To address this issue, activity-alias comes into picture.

<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=".SecondActivity"></activity><activity-alias android:name=".MainAliasActivity" android:targetActivity=".SecondActivity"><intent-filter><action android:name="android.intent.action.MAIN" /><category android:name="android.intent.category.LAUNCHER" /></intent-filter></activity-alias><activity android:name=".MainActivity"></activity></application>

Activity-alias allows you to change the start-up page and keep your application short-cut intact. So, client can use the old short-cut even if start-up activity changes.

Posted By -	Karan Gupta

Posted On -	Tuesday, October 1, 2019

Updated On -	Tuesday, March 31, 2020

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