/**
*通過反射獲取不同儲存卡的路徑，主要是用來獲取外掛sd卡路徑，內建sd卡路徑可通過Environment類的方法獲得
*/
public static boolean hasEnoughStorage(Context context) {
//
        StorageManager storageManager = (StorageManager) context.getSystemService
                (context.STORAGE_SERVICE);
        boolean hasEnoughStorage = false;
        try
 
 {
            String[] paths = (String[]) storageManager.getClass
                    ().getMethod("getVolumePaths").invoke(storageManager);
            for (String s : paths) {
                StatFs statFs = new StatFs(s);
                //得到分割槽大小
                long blockSize = statFs.getBlockSize();
                //得到可用分割槽數
 

                long availableBlocks = statFs.getAvailableBlocks();
                //可用分割槽大小，單位kb
                long availableStorage = (blockSize * availableBlocks) / 1024;//kb
                if (availableStorage > 100) {
                    hasEnoughStorage = true;
                }
            }
        } catch
 
 (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
        }
        return hasEnoughStorage;
    }