Mobile Application Development
(Android)
(CS-414)
4(3-1)
Momina Tayyaba
Lecturer
The University of Faisalabad
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Android Broadcast Receiver: Understanding and Implementing, Lecture notes of Computer Science
An in-depth explanation of Broadcast Receivers in Android Mobile Application Development. It covers the concept, functionality, and creation process of Broadcast Receivers. The document also includes examples of various broadcast actions and their uses.
Typology: Lecture notes
2020/2021
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Mobile Application Development
(Android)
(CS-414)
Momina Tayyaba
Lecturer
The University of Faisalabad
Announcements
What’s going on around you?
- Things happen in OS
- That event could be of interest to many applications
- This even is broadcasted as a “Broadcast”
- If you are interested in such an event, you should have a BroadcastReceiver in your app
- Waits for a broadcast to be received
- Once received, it runs a piece of java code.
How to Create a Broadcast Receiver
- Declare a receiver in Manifest file
- Create a java class that receives broadcast
Manifest Entry
How to Create a Broadcast Receiver
- Declare a receiver in Manifest file
- Create a java class that receives broadcast
Java Receiver public class MyReceiver extends BroadcastReceiver {
@Override public void onReceive(Context context, Intent intent) {
// this code runs once ☺ Toast.makeText(context, "Broadcast Received", Toast.LENGTH_LONG).show();
} }
Example Broadcasts
android.intent.action.ACTION_POWER_CONNECTED android.intent.action.ACTION_POWER_DISCONNECTED android.intent.action.ACTION_SHUTDOWN android.intent.action.AIRPLANE_MODE android.intent.action.BATTERY_CHANGED android.intent.action.BATTERY_LOW android.intent.action.BATTERY_OKAY android.intent.action.BOOT_COMPLETED android.intent.action.CAMERA_BUTTON