android u盘检测工具,android U盘检测及获取内存储器信息

您可以尝试使用以下代码来检测和获取Android设备中连接的U盘信息：

// 检测U盘是否连接
public boolean isUSBExist(Context context) {
    StorageManager storageManager = (StorageManager) context.getSystemService(Context.STORAGE_SERVICE);
    if (storageManager == null) {
        return false;
    }
    try {
        Method method = storageManager.getClass().getMethod("getVolumeList");
        if (method == null) {
            return false;
        }
        Object[] objArr = (Object[]) method.invoke(storageManager);
        if (objArr == null) {
            return false;
        }
        for (Object obj : objArr) {
            String path = (String) obj.getClass().getMethod("getPath").invoke(obj);
            String state = (String) obj.getClass().getMethod("getState").invoke(obj);
            if (Environment.MEDIA_MOUNTED.equals(state) && path != null && path.contains("usb")) {
                return true;
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return false;
}

// 获取U盘信息
public String getUSBInfo(Context context) {
    StringBuilder sb = new StringBuilder();
    StorageManager storageManager = (StorageManager) context.getSystemService(Context.STORAGE_SERVICE);
    if (storageManager == null) {
        return sb.toString();
    }
    try {
        Method method = storageManager.getClass().getMethod("getVolumeList");
        if (method == null) {
            return sb.toString();
        }
        Object[] objArr = (Object[]) method.invoke(storageManager);
        if (objArr == null) {
            return sb.toString();
        }
        for (Object obj : objArr) {
            String path = (String) obj.getClass().getMethod("getPath").invoke(obj);
            String state = (String) obj.getClass().getMethod("getState").invoke(obj);
            if (Environment.MEDIA_MOUNTED.equals(state) && path != null && path.contains("usb")) {
                String description = (String) obj.getClass().getMethod("getDescription", Context.class).invoke(obj, context);
                String uuid = (String) obj.getClass().getMethod("getUuid").invoke(obj);
                long totalSize = (long) obj.getClass().getMethod("getTotalSize").invoke(obj);
                long freeSize = (long) obj.getClass().getMethod("getFreeSize").invoke(obj);
                sb.append("Description: ").append(description).append("\n");
                sb.append("UUID: ").append(uuid).append("\n");
                sb.append("TotalSize: ").append(totalSize).append("B\n");
                sb.append("FreeSize: ").append(freeSize).append("B\n");
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return sb.toString();
}

以上代码可以通过StorageManager类来获取连接的存储设备信息，包括U盘。其中，isUSBExist方法用于检测U盘是否连接，getUSBInfo方法用于获取U盘的详细信息，包括描述、UUID、总大小和可用大小。