Example usage for android.os Environment getExternalStorageDirectory

List of usage examples for android.os Environment getExternalStorageDirectory

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Introduction

In this page you can find the example usage for android.os Environment getExternalStorageDirectory.

Prototype

public static File getExternalStorageDirectory()

Source Link

Document

Return the primary shared/external storage directory.

Usage

From source file:Main.java

public static float[] readBinShapeArray(String dir, String fileName, int size) {
    float x;/* w w w.  j a v  a 2  s. com*/
    int i = 0;
    float[] tab = new float[size];

    File sdLien = Environment.getExternalStorageDirectory();
    File inFile = new File(sdLien + File.separator + dir + File.separator + fileName);
    Log.d(TAG, "path of file : " + inFile);
    if (!inFile.exists()) {
        throw new RuntimeException("File doesn't exist");
    }
    DataInputStream in = null;
    try {
        in = new DataInputStream(new FileInputStream(inFile));
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }
    try {
        //read first x
        x = in.readFloat();
        while (true) {
            tab[i] = x;
            i++;
            x = in.readFloat();
        }
    } catch (EOFException e) {
        try {
            Log.d(TAG, "close");
            in.close();
        } catch (IOException e1) {
            e1.printStackTrace();
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (in != null) {
            try { //free ressources
                Log.d(TAG, "close");
                in.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return tab;
}

From source file:Main.java

public static File getOwnCacheDirectory(Context context, String cacheDir) {
    File appCacheDir = null;//w  ww  .java2 s. c om
    if (MEDIA_MOUNTED.equals(Environment.getExternalStorageState()) && hasExternalStoragePermission(context)) {
        appCacheDir = new File(Environment.getExternalStorageDirectory(), cacheDir);
    }
    if (appCacheDir == null || (!appCacheDir.exists() && !appCacheDir.mkdirs())) {
        appCacheDir = context.getCacheDir();
    }
    return appCacheDir;
}

From source file:Main.java

public static boolean writeFile(byte[] buffer, String folder, String fileName) {
    boolean writeSucc = false;
    boolean sdCardExist = Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED);
    String folderPath = "";
    if (sdCardExist) {
        folderPath = Environment.getExternalStorageDirectory() + File.separator + folder + File.separator;
    } else {/*from   w  w w . j  a  va  2 s  .c  o m*/
        writeSucc = false;
    }

    File fileDir = new File((folderPath));
    if (!fileDir.exists()) {
        fileDir.mkdirs();
    }

    File file = new File(folderPath + fileName);
    FileOutputStream out = null;

    try {
        out = new FileOutputStream(file);
        out.write(buffer);
        writeSucc = true;
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            out.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return writeSucc;
}

From source file:Main.java

public static File[] getMountedVolumesAsFile() {
    final String state = Environment.getExternalStorageState();
    if (Environment.MEDIA_MOUNTED.equals(state) || Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) { // we can read the External Storage...           
        //Retrieve the primary External Storage:
        final File primaryExternalStorage = Environment.getExternalStorageDirectory();

        //Retrieve the External Storages root directory:
        String externalStorageRootDir = null;
        if ((externalStorageRootDir = primaryExternalStorage.getParent()) == null) { // no parent...
            return (new File[] { primaryExternalStorage });
        } else {/*  w  w w  . j a v  a  2 s  .c o m*/
            final File externalStorageRoot = new File(externalStorageRootDir);
            final File[] files = externalStorageRoot.listFiles(new FilenameFilter() {

                @Override
                public boolean accept(File dir, String filename) {
                    // TODO Auto-generated method stub

                    File file = new File(dir, filename);
                    if (file.isDirectory() && file.canRead() && file.canWrite() && !file.isHidden()) {
                        return true;
                    }
                    return false;
                }

            }); //.listFiles();
            List<File> data = new ArrayList<File>();

            for (final File file : files) {
                if (file.isDirectory() && file.canRead() && file.canWrite() && !file.isHidden()
                        && (files.length > 0)) { // it is a real directory (not a USB drive)...
                    if (file.toString().equals(primaryExternalStorage.toString()))
                        data.add(file);
                    else {
                        if (!file.toString().contains("usb") || !file.toString().contains("USB")) {
                            data.add(file);
                        }
                    }
                }
            }
            return data.toArray(new File[data.size()]);
        }
    } else {
        // we cannot read the External Storage..., return null
        return null;
    }
}

From source file:Main.java

public static void init(Context context) {
    voice_wechat_paths = new ArrayList<>();
    voice_qq_paths = new ArrayList<>();

    if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
        File dir = Environment.getExternalStorageDirectory();
        File f = new File(dir + "/tencent/MicroMsg");

        if (f.exists() && f.canRead() && f.isDirectory()) {
            File[] files = f.listFiles();
            if (files == null || files.length == 0) {
                return;
            }//from w  w  w.j  a v a2 s  .c  o  m

            for (File f0 : files) {
                if (f0.isDirectory() && f0.getName().length() > 24) {
                    voice_wechat_paths.add(f0.getAbsolutePath() + "/voice2");
                }
            }
        }

        File exportDir = new File(dir, "silkv3_mp3");
        if (!exportDir.exists()) {
            exportDir.mkdirs();
        }

        export_dir = exportDir.getAbsolutePath();
    }
}

From source file:Main.java

public static String getSDCardPath_M1() {
    return Environment.getExternalStorageDirectory().getAbsolutePath();
}

From source file:Main.java

/**
 * Creates a temporary file with the specified prefix and extension.
 * //from   w w  w  . java2 s . c  o  m
 * @param part
 *            the prefix for the file
 * @param ext
 *            the extension for the file
 * @param context
 *            the application's context
 * @return the created File
 * @throws Exception
 */
private static File createTemporaryFile(String part, String ext, Context context) throws Exception {
    File tempDir = Environment.getExternalStorageDirectory();
    tempDir = new File(tempDir.getAbsolutePath() + "/bv-temp/");
    if (!tempDir.exists()) {
        tempDir.mkdir();
    }
    return File.createTempFile(part, ext, tempDir);
}

From source file:Main.java

/**
 * Writes file to external storage and returns the filename.
 * Writes as a JPEG file.//  w  w  w  .j av a  2  s . com
 * If you want to convert to a URI you need to prepend file://
 * @param b
 * @param fileName
 * @return
 */
static public String saveImageToExternal(Bitmap b, String fileName) { //}, int width, int height) {
    FileOutputStream fos;
    String mypath = Environment.getExternalStorageDirectory() + "/" + fileName + ".jpg";

    File file = new File(mypath);
    try {
        file.createNewFile();

        fos = new FileOutputStream(file);

        // Use the compress method on the BitMap object to write image to the OutputStream
        b.compress(Bitmap.CompressFormat.JPEG, 100, fos);
        fos.close();

    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return null;
    }
    ;
    return file.toString();
}

From source file:Main.java

private static String getSDPath() {
    return Environment.getExternalStorageDirectory().getPath();
}

From source file:Main.java

public static String[] getMountedVolumes() {
    final String state = Environment.getExternalStorageState();
    if (Environment.MEDIA_MOUNTED.equals(state) || Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) { // we can read the External Storage...           
        //Retrieve the primary External Storage:
        final File primaryExternalStorage = Environment.getExternalStorageDirectory();

        //Retrieve the External Storages root directory:
        String externalStorageRootDir = null;
        if ((externalStorageRootDir = primaryExternalStorage.getParent()) == null) { // no parent...
            return (new String[] { "ONLY A SINGLE VOLUME HAS BEEN DETECTED!",
                    (Environment.isExternalStorageRemovable() ? "(REMOVABLE SD-CARD)" : "(INTERNAL STORAGE)")
                            + " PRIMARY STORAGE: " + primaryExternalStorage });
        } else {//from  w w w .ja  va2s  . com
            final File externalStorageRoot = new File(externalStorageRootDir);
            final File[] files = externalStorageRoot.listFiles(new FilenameFilter() {

                @Override
                public boolean accept(File dir, String filename) {
                    // TODO Auto-generated method stub

                    File file = new File(dir, filename);
                    if (file.isDirectory() && file.canRead() && file.canWrite() && !file.isHidden()) {
                        return true;
                    }
                    return false;
                }

            }); //.listFiles();
            List<String> data = new ArrayList<String>();
            if (files.length > 1) {
                data.add("MULTIPLE VOLUMES HAS BEEN DETECTED!");
                data.add("Enumerating detected volumes . . .");
            } else {
                data.add("ONLY A SINGLE VOLUME HAS BEEN DETECTED!");
            }

            for (final File file : files) {
                if (file.isDirectory() && file.canRead() && file.canWrite() && !file.isHidden()
                        && (files.length > 0)) { // it is a real directory (not a USB drive)...
                    if (file.toString().equals(primaryExternalStorage.toString()))
                        data.add((Environment.isExternalStorageRemovable() ? "(REMOVABLE SD-CARD)"
                                : "(INTERNAL Memory)") + " PRIMARY STORAGE: " + file.getAbsolutePath());
                    else {
                        data.add(((file.toString().contains("usb") || file.toString().contains("USB"))
                                ? "MOUNTED USB"
                                : "MOUNTED") + " STORAGE: " + file.getAbsolutePath());
                    }
                }
            }
            return data.toArray(new String[data.size()]);
        }
    } else {
        // we cannot read the External Storage..., return null
        return null;
    }

}