Intents and Broadcasts
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Explain the concept of an Intent Filter in Android.
- An Intent Filter is used to specify which intents an activity, service, or broadcast receiver can respond to. It helps filter and match incoming intents.
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What is a PendingIntent in Android, and how is it different from a regular Intent?
- A PendingIntent is a wrapper around an Intent, allowing another application to perform an action on your behalf. It’s often used in situations where an action needs to be deferred or executed by a different app.
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What is a BroadcastReceiver in Android, and how is it used?
- A BroadcastReceiver is a component that responds to system-wide broadcasts or custom events. It’s used to handle asynchronous events and perform tasks in the background.
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Explain the difference between an ordered and unordered broadcast in Android.
- Receivers receive an ordered broadcast in a specific order, with each receiver having the ability to propagate or abort the broadcast. Unordered broadcasts are delivered to all receivers simultaneously.
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How can you register a BroadcastReceiver dynamically in your code?
- You can register a BroadcastReceiver dynamically using the registerReceiver() method in your activity or service and unregister it with unregisterReceiver().
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What is an IntentService, and how does it differ from a regular Service?
- An IntentService is a specialized type of Service designed to perform tasks on a background thread in response to intents. It automatically stops itself when the work is done.
