Android 7.0开发获取存储设备信息的方法

概述本文实例讲述了Android7.0开发获取存储设备信息的方法。分享给大家供大家参考，具体如下：

本文实例讲述了 AndroID 7.0开发获取存储设备信息的方法。分享给大家供大家参考，具体如下：

AndroID 7.0开发相较之前有不少改进，具体可参考前面的文章Android7.0版本影响开发的改进分析，这里简单总结一下AndroID 7.0针对存储设备的简单 *** 作方法。

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,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;}

更多关于AndroID相关内容感兴趣的读者可查看本站专题：《Android文件 *** 作技巧汇总》、《Android视图View技巧总结》、《Android编程之activity *** 作技巧总结》、《Android布局layout技巧总结》、《Android开发入门与进阶教程》、《Android资源 *** 作技巧汇总》及《Android控件用法总结》

希望本文所述对大家AndroID程序设计有所帮助。

总结

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