Android 7.0 得到存储设备信息

MountPoint

我们通过MountPoint来描述android设备信息

    private static class MountPoint {        String mDescription;        String mPath;        boolean mIsExternal;        boolean mIsMounted;        long mMaxFileSize;        long mFreeSpace;        long mTotalSpace;    }

实现mMountPathList

    private final CopyOnWriteArrayList <MountPoint> mMountPathList = new CopyOnWriteArrayList<MountPoint>();    public void init(Context context) {        mStorageManager = (StorageManager) context.getSystemService(Context.STORAGE_SERVICE);        final String defaultPath = getDefaultPath();        LogUtils.d(TAG, "init,defaultPath = " + defaultPath);        if (!TextUtils.isEmpty(defaultPath)) {            mRootPath = ROOT_PATH;        }        mMountPathList.clear();        // check media availability to init mMountPathList        StorageVolume[] storageVolumeList = mStorageManager.getVolumeList();        if (storageVolumeList != null) {            for (StorageVolume volume : storageVolumeList) {                MountPoint mountPoint = new MountPoint();                mountPoint.mDescription = volume.getDescription(context);                mountPoint.mPath = volume.getPath();                mountPoint.mIsMounted = isMounted(volume.getPath());                mountPoint.mIsExternal = volume.isRemovable();                mountPoint.mMaxFileSize = volume.getMaxFileSize();                LogUtils.d(TAG, "init,description :" + mountPoint.mDescription + ",path : "                        + mountPoint.mPath + ",isMounted : " + mountPoint.mIsMounted                        + ",isExternal : " + mountPoint.mIsExternal + ", mMaxFileSize: " + mountPoint.mMaxFileSize);                mMountPathList.add(mountPoint);            }        }        IconManager.getInstance().init(context, defaultPath + SEPARATOR);    }

判断是否是外置sdcard

    /**     * This method checks weather certain path is external mount path.     *     * @param path path which needs to be checked     * @return true for external mount path, and false for not external mount path     */    public boolean isExternalMountPath(String path) {        //LogUtils.d(TAG, "isExternalMountPath ,path =" + path);        if (path == null) {            return false;        }        for (MountPoint mountPoint : mMountPathList) {            if (mountPoint.mIsExternal && mountPoint.mPath.equals(path)) {                return true;            }        }        return false;    }

判断内置存储空间

    public boolean isInternalMountPath(String path) {        //LogUtils.d(TAG, "isInternalMountPath ,path =" + path);        if (path == null) {            return false;        }        for (MountPoint mountPoint : mMountPathList) {            if (!mountPoint.mIsExternal && mountPoint.mPath.equals(path)) {                return true;            }        }        return false;    }