An intent filter that only accepts intents from a certain application package. (For Android development)

IntentFilterToReceiveFromSpecificApp.xml

<!-- This is a mock AndroidManifest.xml file, to show you the general context of this intent filter -->
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="net.danmercer.ponderizer" >
    
    <application ... >
    ...

        <!-- Accept text via ACTION_SEND only from the Github Android app ("com.github.mobile") -->
        <activity
            android:name=".MyShareTextActivity"
            android:label="Add text to MyApp" >
            <intent-filter android:label="Share to MyApp">
                <action android:name="android.intent.action.SEND" />
                <category android:name="com.github.mobile" />
                <!-- This ^ makes it only accept intents from package "com.github.mobile" -->
                <data android:mimeType="text/plain" />
            </intent-filter>
        </activity>
    
    ...
    
    </application>

</manifest>