Java tutorial
//package com.java2s; //License from project: Open Source License import android.os.Environment; import android.util.Log; import java.io.File; import java.text.SimpleDateFormat; import java.util.Date; public class Main { /** * Creates a media file in the {@code Environment.DIRECTORY_PICTURES} directory. The directory * is persistent and available to other applications like gallery. * * @param type Media type. Can be video or image. * @return A file object pointing to the newly created file. */ public static File getOutputMediaFile(File myDir) { // To be safe, you should check that the SDCard is mounted // using Environment.getExternalStorageState() before doing this. Log.i("CameraSample", "about to check state of external storage"); if (!Environment.getExternalStorageState().equalsIgnoreCase(Environment.MEDIA_MOUNTED)) { Log.d("CameraSample", "externalstoragestate was " + Environment.getExternalStorageState()); return null; } // Create a media file name String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date()); File mediaFile = new File(myDir + File.separator + "VID_" + timeStamp + ".mp4"); return mediaFile; } }