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POHow do I put a capped maximum directory storage space in SD?
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copied!<p>Presumingly i wanted to allocate only 1GB of space to store my videos in a particular file directory where how is it going to auto-delete the oldest video file in that directory once its about to reach/hit 1GB?</p> <p>Sorry i'm kinna new in java/android and currently creating an car blackbox app can someone help me... Thanks</p> <p>This is what I have tried so far can someone tell me how should i implement the above mention function into my CameraTest Activity:</p> <pre><code>public class CameraTest extends Activity implements SurfaceHolder.Callback, OnClickListener { public static SurfaceView surfaceView; public static SurfaceHolder surfaceHolder; public static Camera MainCamera; private static boolean previewRunning; private static boolean serviceRunning = true; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); surfaceView = (SurfaceView)findViewById(R.id.surface_camera); surfaceView.setOnClickListener(this); surfaceHolder = surfaceView.getHolder(); surfaceHolder.addCallback(this); surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); Button btnSetting = (Button) findViewById(R.id.button2); btnSetting.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { startActivity(new Intent(getApplicationContext(), SettingActivity.class)); } }); } @Override public void onClick(View v) { if (serviceRunning) { serviceRunning = false; startService(new Intent(getApplicationContext(), ServiceRecording.class)); } else { serviceRunning = true; stopService(new Intent(getApplicationContext(), ServiceRecording.class)); } } public static boolean ServiceStatus; public static String resParams; @Override public void surfaceCreated(SurfaceHolder holder) { if(ServiceRecording.recordingStatus) { stopService(new Intent(getApplicationContext(), ServiceRecording.class)); try { Thread.sleep(4000); } catch (InterruptedException e) { e.printStackTrace(); } MainCamera = ServiceRecording.ServiceCamera; startService(new Intent(getApplicationContext(), ServiceRecording.class)); } else{ MainCamera = Camera.open(); if (MainCamera != null) { resParams = MainCamera.getParameters().get("preview-size-values"); Camera.Parameters params = MainCamera.getParameters(); params.setPreviewSize(320, 240); params.setPreviewFormat(PixelFormat.JPEG); MainCamera.setParameters(params); try { MainCamera.setPreviewDisplay(holder); } catch (IOException e) { e.printStackTrace(); } MainCamera.startPreview(); previewRunning = true; } else { Toast.makeText(getApplicationContext(), "Camera not available!", Toast.LENGTH_LONG).show(); finish(); } } if (previewRunning) { MainCamera.stopPreview(); } } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { } @Override public void surfaceDestroyed(SurfaceHolder holder){ MainCamera.stopPreview(); previewRunning = false; MainCamera.release(); } } </code></pre> <p>my serviceRecording.java file public class ServiceRecording extends Service {</p> <pre><code>@Override public IBinder onBind(Intent intent) { // TODO Auto-generated method stub return null; } private SurfaceView surfaceView; private SurfaceHolder surfaceHolder; public static Camera ServiceCamera; public static boolean recordingStatus; @Override public void onCreate() { super.onCreate(); recordingStatus = false; ServiceCamera = CameraTest.MainCamera; surfaceView = CameraTest.surfaceView; surfaceHolder = CameraTest.surfaceHolder; } @Override public int onStartCommand(Intent intent, int flags, int startId) { super.onStartCommand(intent, flags, startId); if (recordingStatus == false) { //new Timer().scheduleAtFixedRate(task, after, interval); startRecording(); } return START_STICKY; } @Override public void onDestroy() { super.onDestroy(); stopRecording(); //camera.stopPreview(); recordingStatus = false; //camera.release(); } private MediaRecorder mediaRecorder; private static int encodingType; private static String videoResolution; private static String fileFormat; private static boolean audioStatus; private static int timeInterval; private static final String TAG = "Exception"; public boolean startRecording(){ try { if(Tab1Activity.encodingPref == null) { encodingType = 1; } else { encodingType = Integer.parseInt(Tab1Activity.encodingPref); } //****************************************************************** if(Tab1Activity.videoResPref == null) { String stringRes = CameraTest.resParams; String[] entriesValues = stringRes.split(","); videoResolution = entriesValues[0]; } else { videoResolution = Tab1Activity.videoResPref; } //****************************************************************** if(Tab1Activity.fileFormatPref == null) { fileFormat = ".mp4"; } else { fileFormat = Tab1Activity.fileFormatPref; } //****************************************************************** if(Tab2Activity.audioPref == false) { audioStatus = false; //PreferenceManager.setDefaultValues(this, R.xml.tab2, true); } else { audioStatus = Tab2Activity.audioPref; } //****************************************************************** Toast.makeText(getBaseContext(), "Recording Started", Toast.LENGTH_SHORT).show(); try{ ServiceCamera.reconnect(); ServiceCamera.unlock(); } catch(Exception e){ } mediaRecorder = new MediaRecorder(); mediaRecorder.setCamera(ServiceCamera); if(audioStatus != true) { mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC); } mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA); mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT); if(audioStatus != true) { mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT); } mediaRecorder.setVideoEncoder(encodingType); SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH_mm_ss"); Date date = new Date(); File dirlist = new File(Environment.getExternalStorageDirectory() + "/VideoList"); if(!(dirlist.exists())) dirlist.mkdir(); File TempFile = new File(Environment.getExternalStorageDirectory() + "/VideoList", dateFormat.format(date) + fileFormat); mediaRecorder.setOutputFile(TempFile.getPath()); String[] separatedRes = videoResolution.split("x"); mediaRecorder.setVideoSize(Integer.parseInt(separatedRes[0]),Integer.parseInt(separatedRes[1])); mediaRecorder.setPreviewDisplay(surfaceHolder.getSurface()); mediaRecorder.prepare(); mediaRecorder.start(); recordingStatus = true; return true; } catch (IllegalStateException e) { Log.d(TAG,e.getMessage()); e.printStackTrace(); return false; } catch (IOException e) { Log.d(TAG,e.getMessage()); e.printStackTrace(); return false; } } public void stopRecording() { Toast.makeText(getBaseContext(), "Recording Stopped", Toast.LENGTH_SHORT).show(); mediaRecorder.reset(); mediaRecorder.release(); recordingStatus = false; } } </code></pre>

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