Android 如何使用ExternalStorageStats

嗨，有人能告诉我如何使用ExternalStorageStats类吗。基本上，我想通过使用这个类获取图像字节、音频字节、视频字节、应用程序字节来获取存储使用率。顺便说一下，我使用StorageStatsManager类成功地获得了总存储、可用存储和已用存储，但在internet上找不到如何使用ExternalStorageStats类获取图像字节、音频字节、视频字节和应用程序字节。我甚至没有从官方文档中找到任何有用的内容，下面给出了官方文档的链接

下面给出了使用StorageStatsManager类获取总存储、可用存储和已用存储的代码

final StorageStatsManager storageStatsManager = (StorageStatsManager) getSystemService(Context.STORAGE_STATS_SERVICE);
final StorageManager storageManager = (StorageManager) getSystemService(Context.STORAGE_SERVICE);
final List<StorageVolume> storageVolumes = storageManager.getStorageVolumes();
final UserHandle user = android.os.Process.myUserHandle();
for (StorageVolume storageVolume : storageVolumes) {
            final String uuidStr = storageVolume.getUuid();
            final UUID uuid = uuidStr == null ? StorageManager.UUID_DEFAULT : UUID.fromString(uuidStr);

            try {
                    Log.d("AppLog", "storage:" + uuid + " : " + storageVolume.getDescription(context) + " : " + storageVolume.getState());
                    Log.d("AppLog", "getTotalBytes:" + Formatter.formatShortFileSize(context, storageStatsManager.getTotalBytes(uuid)));
                    Log.d("AppLog", "getUsedBytes:" + Formatter.formatShortFileSize(context, (storageStatsManager.getTotalBytes(uuid) - storageStatsManager.getFreeBytes(uuid))));
                    Log.d("AppLog", "getFreeBytes:" + Formatter.formatShortFileSize(context, storageStatsManager.getFreeBytes(uuid)));
                    Log.d("AppLog", "storage stats for app of package name:" + getPackageName() + " : ");

                    final StorageStats storageStats = storageStatsManager.queryStatsForPackage(uuid, getPackageName(), user);

                    Log.d("AppLog", "getAppBytes:" + Formatter.formatShortFileSize(context, storageStats.getAppBytes()) +
                                    " getCacheBytes:" + Formatter.formatShortFileSize(context, storageStats.getCacheBytes()) +
                                    " getDataBytes:" + Formatter.formatShortFileSize(context, storageStats.getDataBytes()));


                                    try {
                                        textView.setText("Storage : " + storageVolume.getDescription(context) + " : " + storageVolume.getState() +
                                                "\n\n" + "Total Bytes : " + Formatter.formatShortFileSize(context, storageStatsManager.getTotalBytes(uuid)) +
                                                "\n\n" + "Used Bytes : " + Formatter.formatShortFileSize(context, (storageStatsManager.getTotalBytes(uuid) - storageStatsManager.getFreeBytes(uuid))) +
                                                "\n\n" + "Free Bytes : " + Formatter.formatShortFileSize(context, storageStatsManager.getFreeBytes(uuid)) +
                                                "\n\n" + "getAppBytes:" + Formatter.formatShortFileSize(context, storageStats.getAppBytes()) +
                                                "\n\n" + " getCacheBytes:" + Formatter.formatShortFileSize(context, storageStats.getCacheBytes()) +
                                                "\n\n" + " getDataBytes:" + Formatter.formatShortFileSize(context, storageStats.getDataBytes()) +
                                                "\n\n" + "storage stats for app of package name : " + getPackageName());


                                    } catch (IOException e) {
                                        e.printStackTrace();
                                    }

                                }
                            });

                        } catch (Exception e) {
                            e.printStackTrace();
                        }
                    }

final-StorageStatsManager-StorageStatsManager=（StorageStatsManager）getSystemService（Context.STORAGE\u STATS\u SERVICE）；
最终的StorageManager StorageManager=（StorageManager）getSystemService（Context.STORAGE\u服务）；
最终列表storageVolumes=storageManager.getStorageVolumes（）；
final UserHandle user=android.os.Process.myUserHandle（）；
用于（存储卷存储卷：存储卷）{
最后一个字符串uuidStr=storageVolume.getUuid（）；
最终UUID UUID=uuidStr==null？StorageManager.UUID_默认值：UUID.fromString（uuidStr）；
试一试{
Log.d（“AppLog”，“storage:“+uuid+”：”+storageVolume.getDescription（context）+“：”+storageVolume.getState（））；
Log.d（“AppLog”，“getTotalBytes:”+Formatter.formatShortFileSize（上下文，storageStatsManager.getTotalBytes（uuid））；
Log.d（“AppLog”、“getUsedBytes:”+Formatter.formatShortFileSize（上下文）（storageStatsManager.getTotalBytes（uuid）-storageStatsManager.getFreeBytes（uuid））；
Log.d（“AppLog”，“getFreeBytes:”+Formatter.formatShortFileSize（上下文，storageStatsManager.getFreeBytes（uuid））；
Log.d（“AppLog”，“包名为“+getPackageName（）+”：”）的应用程序的存储统计信息”；
final-StorageStats-StorageStats=storageStatsManager.queryStatsForPackage（uuid，getPackageName（），user）；
Log.d（“AppLog”，“getAppBytes:”+Formatter.formatShortFileSize（上下文，storageStats.getAppBytes（））+
getCacheBytes:“+Formatter.formatShortFileSize（上下文，storageStats.getCacheBytes（））+
getDataBytes:“+Formatter.formatShortFileSize（上下文，storageStats.getDataBytes（））；
试一试{
textView.setText（“存储：”+storageVolume.getDescription（上下文）+“：”+storageVolume.getState（）+
“\n\n”+”总字节数：“+Formatter.formatShortFileSize（上下文，storageStatsManager.getTotalBytes（uuid））+
“\n\n”+”使用的字节数：“+Formatter.formatShortFileSize（上下文，（storageStatsManager.getTotalBytes（uuid）-storageStatsManager.getFreeBytes（uuid）））+
“\n\n”+”空闲字节：“+Formatter.formatShortFileSize（上下文，storageStatsManager.getFreeBytes（uuid））+
“\n\n”+”getAppBytes:“+Formatter.formatShortFileSize（上下文，storageStats.getAppBytes（））+
“\n\n”+”getCacheBytes:“+Formatter.formatShortFileSize（上下文，storageStats.getCacheBytes（））+
“\n\n”+”getDataBytes:“+Formatter.formatShortFileSize（上下文，storageStats.getDataBytes（））+
“\n\n”+”包名为“+getPackageName（）”的应用程序的存储统计信息；
}捕获（IOE异常）{
e、 printStackTrace（）；
}
}
});
}捕获（例外e）{
e、 printStackTrace（）；
}
}

您可以使用

ExternalStorageStats

，如下函数所述。通过使用此功能，您将通过获取图像字节、音频字节、视频字节和应用程序字节来获取存储使用率。这里的函数是，但请记住，它只在API级别26及以上工作

@RequiresApi(api = Build.VERSION_CODES.O)
private void getResults(){

    StorageStatsManager storageStatsManager = (StorageStatsManager)getSystemService(Context.STORAGE_STATS_SERVICE);
    ExternalStorageStats externalStorageStats = null;
    UserHandle user = android.os.Process.myUserHandle();
    try {
        externalStorageStats = storageStatsManager.queryExternalStatsForUser(StorageManager.UUID_DEFAULT,user);
    } catch (IOException e) {
        e.printStackTrace();
    }
    long totalBytes = externalStorageStats.getTotalBytes();
    long imageBytes = externalStorageStats.getImageBytes();
    long audioBytes = externalStorageStats.getAudioBytes();
    long videoBytes = externalStorageStats.getVideoBytes();
    long appBytes = externalStorageStats.getAppBytes();

    String string= ("Total Bytes : " + getSize(totalBytes) +
                    "\n" + "Image Bytes : " + getSize(imageBytes) +
                    "\n" + "Audio Bytes : " + getSize(audioBytes) +
                    "\n" + "Video Bytes : " + getSize(videoBytes) +
                    "\n" + "App Bytes : " + getSize(appBytes));
}

---

您可以使用

ExternalStorageStats

，如下函数所述。通过使用此功能，您将通过获取图像字节、音频字节、视频字节和应用程序字节来获取存储使用率。这里的函数是，但请记住，它只在API级别26及以上工作

@RequiresApi(api = Build.VERSION_CODES.O)
private void getResults(){

    StorageStatsManager storageStatsManager = (StorageStatsManager)getSystemService(Context.STORAGE_STATS_SERVICE);
    ExternalStorageStats externalStorageStats = null;
    UserHandle user = android.os.Process.myUserHandle();
    try {
        externalStorageStats = storageStatsManager.queryExternalStatsForUser(StorageManager.UUID_DEFAULT,user);
    } catch (IOException e) {
        e.printStackTrace();
    }
    long totalBytes = externalStorageStats.getTotalBytes();
    long imageBytes = externalStorageStats.getImageBytes();
    long audioBytes = externalStorageStats.getAudioBytes();
    long videoBytes = externalStorageStats.getVideoBytes();
    long appBytes = externalStorageStats.getAppBytes();

    String string= ("Total Bytes : " + getSize(totalBytes) +
                    "\n" + "Image Bytes : " + getSize(imageBytes) +
                    "\n" + "Audio Bytes : " + getSize(audioBytes) +
                    "\n" + "Video Bytes : " + getSize(videoBytes) +
                    "\n" + "App Bytes : " + getSize(appBytes));
}