lanch Android Sdk Upgrade Assistant
If your app contains activities, services, or broadcast receivers that use intent filters, you must explicitly declare the android:exported attribute for these components in your app’s manifest file. If you set it to true, the activity is accessible and launchable by other apps. If you set it to false, the activity is accessible and launchable only by your own app. Here’s an example from the manifest file of a social-sharing app:
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