How we can use bubble in Android Studio

In this article, we will read How we can use bubble in Android Studio. When the device is locked or the always-on-display is active, bubbles appear just as a notification normally would.

Bubbles are created by the Notification API, so you send your notification as normal. If you want your notification to display as a bubble, you need to attach some extra data to it.

when you send a notification by bubble then you need to create a Notification channel.

The bubble can be disabled by the user in that case bubble will show just like the notification.

In MainActivity we use NotificationManager to send notifications to Bublle. We send data by intent. Then notify to bubble.

Main Activity

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    Button btnBubble;
    NotificationManager notificationManager;
    Notification.Builder builder;
    NotificationChannel channel;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btnBubble = findViewById(R.id.btnBubble);
        notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        CharSequence name = "Ashwani";
        String description = "desc";
        int importance = NotificationManager.IMPORTANCE_HIGH;
        channel = new NotificationChannel("1", name, importance);
        channel.setDescription(description);
        channel.setAllowBubbles(true);
        btnBubble.setOnClickListener(this);
    }

    @Override
    public void onClick(View view) {
        Intent target = new Intent(MainActivity.this, BubbleActivity.class);
        PendingIntent bubbleIntent =
                PendingIntent.getActivity(MainActivity.this, 0, target, PendingIntent.FLAG_UPDATE_CURRENT /* flags */);
        Notification.BubbleMetadata bubbleData =
                new Notification.BubbleMetadata.Builder()
                        .setDesiredHeight(600)
                        .setIcon(Icon.createWithResource(MainActivity.this, R.mipmap.ic_launcher))
                        .setIntent(bubbleIntent)
                        .build();
        target = new Intent(MainActivity.this, BubbleActivity.class);
        target.putExtra("key","This is the second bubble");
        bubbleIntent =
                PendingIntent.getActivity(MainActivity.this, 0, target, PendingIntent.FLAG_UPDATE_CURRENT);
        // Create bubble metadata
        bubbleData = new Notification.BubbleMetadata.Builder()
                .setDesiredHeight(600)
                .setIcon(Icon.createWithResource(MainActivity.this, R.mipmap.ic_launcher))
                .setIntent(bubbleIntent)
                .build();
        builder = new Notification.Builder(MainActivity.this, channel.getId())
                .setContentTitle(" Bubble")
                .setSmallIcon(R.mipmap.ic_launcher)
                .setBubbleMetadata(bubbleData);
        notificationManager.createNotificationChannel(channel);
        notificationManager.notify(2, builder.build());
    }
}

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

Button btnBubble;

NotificationManager notificationManager;

Notification.Builder builder;

NotificationChannel channel;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

btnBubble = findViewById(R.id.btnBubble);

notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

CharSequence name = "Ashwani";

String description = "desc";

int importance = NotificationManager.IMPORTANCE_HIGH;

channel = new NotificationChannel("1", name, importance);

channel.setDescription(description);

channel.setAllowBubbles(true);

btnBubble.setOnClickListener(this);

}

@Override

public void onClick(View view) {

Intent target = new Intent(MainActivity.this, BubbleActivity.class);

PendingIntent bubbleIntent =

PendingIntent.getActivity(MainActivity.this, 0, target, PendingIntent.FLAG_UPDATE_CURRENT /* flags */);

Notification.BubbleMetadata bubbleData =

new Notification.BubbleMetadata.Builder()

.setDesiredHeight(600)

.setIcon(Icon.createWithResource(MainActivity.this, R.mipmap.ic_launcher))

.setIntent(bubbleIntent)

.build();

target = new Intent(MainActivity.this, BubbleActivity.class);

target.putExtra("key","This is the second bubble");

bubbleIntent =

PendingIntent.getActivity(MainActivity.this, 0, target, PendingIntent.FLAG_UPDATE_CURRENT);

// Create bubble metadata

bubbleData = new Notification.BubbleMetadata.Builder()

.setDesiredHeight(600)

.setIcon(Icon.createWithResource(MainActivity.this, R.mipmap.ic_launcher))

.setIntent(bubbleIntent)

.build();

builder = new Notification.Builder(MainActivity.this, channel.getId())

.setContentTitle(" Bubble")

.setSmallIcon(R.mipmap.ic_launcher)

.setBubbleMetadata(bubbleData);

notificationManager.createNotificationChannel(channel);

notificationManager.notify(2, builder.build());

}

In activity_main we take a button and on click this button we show a bubble.

activity_main

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:gravity="center"
    android:orientation="vertical">

    <Button
        android:id="@+id/btnBubble"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Create Bubble" />



</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:gravity="center"

android:orientation="vertical">

<Button

android:id="@+id/btnBubble"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Create Bubble" />

</LinearLayout>

In BubbleActivity you can see we replace show a snackbar.we get data and show just like notification.

BubbleActivity

public class BubbleActivity extends AppCompatActivity {

    TextView textView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_bubble);
        Toolbar toolbar = findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        textView = findViewById(R.id.textView);
        FloatingActionButton fab = findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });
    }
    @Override
    protected void onResume() {
        super.onResume();
        if (getIntent() != null && getIntent().getExtras() != null) {
            String value = getIntent().getStringExtra("key");
            textView.setText(value);
        }
    }
}

public class BubbleActivity extends AppCompatActivity {

TextView textView;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_bubble);

Toolbar toolbar = findViewById(R.id.toolbar);

setSupportActionBar(toolbar);

textView = findViewById(R.id.textView);

FloatingActionButton fab = findViewById(R.id.fab);

fab.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)

.setAction("Action", null).show();

}

});

}

@Override

protected void onResume() {

super.onResume();

if (getIntent() != null && getIntent().getExtras() != null) {

String value = getIntent().getStringExtra("key");

textView.setText(value);

}

You can see in screenshot there is a button create bubble and when we click on that button then it will show a bubble.

So here we discussed How we can use bubble in Android Studio. Thanks for reading this blog and You can get other blogs from here

Bubble in Android Notification in android

Ashwani Yadav 13 May 2021

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