The easiest way to simply allow audio recording capabilities in an application is to leverage an existing application through an intent that provides recording capabilities. In the case of audio, Android ships with a sound recorder application that can be triggered in this manner.
The action used to create the intent is available as a constant called
RECORD_SOUND_ACTION within the
MediaStore.Audio.Media class. Here is the basic code to trigger the built-in sound recorder.
Intent intent = new Intent(MediaStore.Audio.Media.RECORD_SOUND_ACTION); startActivity(intent);
Figure 7–1 shows the built-in audio recording application as triggered by an intent.
Figure 7–1. Android's built-in sound recorder triggered with ...