Replace launching activity with flavors

Question

Is it possible to replace the activity that gets the intent-filter

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

by configuring flavors?

Answer 1

There are a number of ways to accomplish this thanks to the manifest merger.

The easiest way is to use a placeholder in your manifest and define the appropriate class in your build.gradle.

For example, in your manifest:

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<activity android:name="${launchActivityName}">
      <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
  </intent-filter>
</activity>

And in your build.gradle:

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productFlavors {
    flavor1 {
        manifestPlaceholders = [ launchActivityName:"com.example.MainActivity"]
    }
}

You can also include a different manifest file with each flavor.