Simple Audio recorder app in Sketchware
1. Switch on AppCompat and Design.
2. In main.xml, add two Buttons startBtn and stopBtn, and add two TextViews textview_message and textview_file.
3. Add a SpeechToText component (To add record audio permissions).
4. Add a String variable outputFile and add a custom variable of type MediaRecorder with name mediaRecorder.
5. In onCreate, add write string__to file path__ block (To add read and write external storage permissions). Then put following codes to define outputFile.
stopBtn.setEnabled(false);
File downloadsDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
String fileName = "recording_" + System.currentTimeMillis() + ".3gp";
File file = new File(downloadsDir, fileName);
outputFile = file.getAbsolutePath();
6. Create a More block startRecording and put following codes in it.
try {
mediaRecorder = new MediaRecorder();
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mediaRecorder.setOutputFile(outputFile);
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
mediaRecorder.prepare();
mediaRecorder.start();
startBtn.setEnabled(false);
stopBtn.setEnabled(true);
textview_message.setText("Recording Started");
} catch (IOException e) {
textview_message.setText(e
.toString());
}
7. Create another More block stopRecording and put following codes in it.
if (mediaRecorder != null) {
mediaRecorder.stop();
mediaRecorder.release();
mediaRecorder = null;
startBtn.setEnabled(true);
stopBtn.setEnabled(false);
textview_message.setText("Recording Stopped");
}
8. In startBtn onClick event, use more block startRecording.
9. In stopBtn onClick event use more block stopRecording.
10. Save and run the project.
Rajjak Shah
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