import static android.media.AudioManager.*;
public class MyAccessibilityService extends AccessibilityService {
private AudioManager audioManager =
(AudioManager) getSystemService(AUDIO_SERVICE);
@Override
public void onAccessibilityEvent(AccessibilityEvent accessibilityEvent) {
AccessibilityNodeInfo interactedNodeInfo =
accessibilityEvent.getSource();
if (interactedNodeInfo.getText().equals("Increase volume")) {
audioManager.adjustStreamVolume(AudioManager.STREAM_ACCESSIBILITY,
ADJUST_RAISE, 0);
}
}
}