Android 6.0区别U盘和SD卡设备

Posted 2022-12-08 胖子luffy

    public static boolean isSdcardExists(Context context) 

        StorageManager storageManager = StorageManager.from(context.getApplicationContext());
        List<VolumeInfo> volumes = storageManager.getVolumes();
        for (VolumeInfo volInfo : volumes) 
            DiskInfo diskInfo = volInfo.getDisk();
            if (diskInfo != null && diskInfo.isSd()) 
                String sdcardState = volInfo.getEnvironmentForState(volInfo.getState());
                if (Environment.MEDIA_MOUNTED.equals(sdcardState)) 
                    return true;
                
            

        
        return false;
    

    public static int isudiskExists(Context context) 
        int num = 0;
        StorageManager storageManager = StorageManager.from(context.getApplicationContext());
        List<VolumeInfo> volumes = storageManager.getVolumes();
        for (VolumeInfo volInfo : volumes) 
            DiskInfo diskInfo = volInfo.getDisk();
            if (diskInfo != null && diskInfo.isUsb()) 
                String sdcardState = volInfo.getEnvironmentForState(volInfo.getState());
                if (Environment.MEDIA_MOUNTED.equals(sdcardState)) 
                    num++;
                
            

        
        return num;