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并获取U盘信息：

private void detectUSB() {
    UsbManager usbManager = (UsbManager) getSystemService(Context.USB_SERVICE);
    HashMap<String, UsbDevice> deviceList = usbManager.getDeviceList();
    for (UsbDevice device : deviceList.values()) {
        if (device.getProductName().contains("USB")) {
            String deviceName = device.getDeviceName();
            String deviceSerial = device.getSerialNumber();
            // 获取U盘的存储容量信息
            File path = new File("/storage/" + deviceSerial);
            StatFs stat = new StatFs(path.getPath());
            long blockSize = stat.getBlockSizeLong();
            long totalBlocks = stat.getBlockCountLong();
            long availableBlocks = stat.getAvailableBlocksLong();
            long totalSize = totalBlocks * blockSize / (1024 * 1024);
            long availableSize = availableBlocks * blockSize / (1024 * 1024);
            Log.d(TAG, "U盘名称：" + deviceName + "，U盘序列号：" + deviceSerial + "，总容量：" + totalSize + "MB，可用容量：" + availableSize + "MB");
        }
    }
}

需要注意的是，需要在AndroidManifest.xml文件中添加以下权限：

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

同时，在Android 6.0及以上版本需要动态申请读写权限。