Practical-09

Mobile Application

Practical List

Create an android program that will play a media file from the memory card.

Steps

1. Create a new Android project in Android Studio.
2. Open the activity_main.xml layout file.
3. Add a Button element to the layout with the following attributes:
   • android:id="@+id/button"
   • android:layout_width="wrap_content"
   • android:layout_height="wrap_content"
   • android:text="Play Media File"
   • android:layout_gravity="center"
4. Open the MainActivity.java file.
5. Inside the onCreate method, add the following code to set the content view to the activity_main.xml layout:

   setContentView(R.layout.activity_main);
6. Create a new method called playMediaFile to handle the button click event and play the media file:

   private void playMediaFile() {
       String filePath = "/path/to/media/file.mp3"; // Replace with the actual file path
       MediaPlayer mediaPlayer = new MediaPlayer();
       try {
           mediaPlayer.setDataSource(filePath);
           mediaPlayer.prepare();
           mediaPlayer.start();
       } catch (IOException e) {
           e.printStackTrace();
       }
   }
7. Inside the onCreate method, add the following code to set the click listener for the button:

   Button button = findViewById(R.id.button);
   button.setOnClickListener(new View.OnClickListener() {
       @Override
       public void onClick(View v) {
           playMediaFile();
       }
   });
8. Run the application on an Android device or emulator.
9. Click the "Play Media File" button to play the media file from the memory card.
10. Verify that the media file is played successfully.