Android操作sd卡

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// 判斷sd卡是否存在        boolean sdCardExist = Environment.getExternalStorageState().equals(                android.os.Environment.MEDIA_MOUNTED);        // 獲得sd卡根目錄        if (sdCardExist) {            File dir = Environment.getExternalStorageDirectory();            String path = dir.getAbsolutePath() + "/麻城市宅基地資料/";            ArrayList<String> folder = getFolder(path);            listParents = listParent(folder);        }

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    // List轉換為String[]    public String[] listParent(ArrayList<String> list) {        int size = list.size();        String[] array = new String[size];        for (int i = 0; i < list.size(); i++) {            array[i] = (String) list.get(i);        }        return array;    }    // 檢查檔案夾是否存在    boolean isFolderExists(String strFolder) {        File file = new File(strFolder);        return file.exists();    }    // 掃描檔案夾目錄下的檔案夾名字    public ArrayList<String> getFolder(String path) {        ArrayList<String> names = new ArrayList<String>();        File file = new File(path);        if (file.isDirectory()) {            File[] array = file.listFiles();            for (int i = 0; i < array.length; i++) {                File f = array[i];                names.add(f.getName());                System.out.println("檔案夾名稱" + f.getName());            }        }        return names;    }    // 掃描檔案夾裡面的資料    public ArrayList<String> folderScan(String path) {        File file = new File(path);        ArrayList<String> names = new ArrayList<String>();        if (file.isDirectory()) {            File[] array = file.listFiles();            for (int i = 0; i < array.length; i++) {                File f = array[i];                if (f.isFile()) {// FILE TYPE                    String name = f.getName();                    if (name.contains(".jpg")) {                        names.add(name);                        fileScan(f.getAbsolutePath());                    }                } else {// FOLDER TYPE                    folderScan(f.getAbsolutePath());                }            }        }        return names;    }    // 掃描    public void fileScan(String file) {        Uri data = Uri.parse("file://" + file);        sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, data));    }

 

Android操作sd卡