Android intents and intent filters

1. Intents and intent filters

   Explicit and implicit intents, actions, categories, data and filter resolution.

2. Common intents

   Standard intents for camera, maps, email, calendar, settings and similar actions.

3. PendingIntent

   Deferred intents, FLAG_IMMUTABLE and FLAG_MUTABLE for notifications and alarms.

4. App Links

   Deep links, verified Android App Links and assetlinks.json.

5. Package visibility

   The queries manifest element and filtering of visible packages.

6. Sending simple data

   ACTION_SEND, extras and the system share sheet.

7. Activity result APIs

   registerForActivityResult and ActivityResultContracts for results from other activities.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.