第二步使用下边的接收器获取

public class USBReceiver extends BroadcastReceiver {

private static final String TAG = USBReceiver.class.getSimpleName();

private static final String MOUNTS_FILE = "/proc/mounts";

private StorageManager mStorageManager;

@Override

public void onReceive(Context context, Intent intent) {

mStorageManager = (StorageManager) context.getSystemService(Activity.STORAGE_SERVICE);

String action = intent.getAction();

if (action.equals(Intent.ACTION_MEDIA_MOUNTED)) {

String mountPath = intent.getData().getPath();

Uri data = intent.getData();

Log.d(TAG, "mountPath = " + mountPath);

if (!TextUtils.isEmpty(mountPath)) {

//读取到U盘路径再做其他业务逻辑

SPUtils.getInstance().put("UsbPath", mountPath);

boolean mounted = isMounted(mountPath);

Log.d(TAG, "onReceive: " + "U盘挂载" + mounted);

getUName();

}

} else if (action.equals(Intent.ACTION_MEDIA_UNMOUNTED) || action.equals(Intent.ACTION_MEDIA_EJECT)) {

Log.d(TAG, "onReceive: " + "U盘移除了");

} else if (action.equals("android.intent.action.BOOT_COMPLETED")) {

//如果是开机完成，则需要调用另外的方法获取U盘的路径

}

}

/**

* 判断是否有U盘插入,当U盘开机之前插入使用该方法.

* @param path

* @return

*/

public static boolean isMounted(String path) {

boolean blnRet = false;

String strLine = null;

BufferedReader reader = null;

try {

reader = new BufferedReader(new FileReader(MOUNTS_FILE));

while ((strLine = reader.readLine()) != null) {

if (strLine.contains(path)) {

blnRet = true;

break;

}

}

} catch (Exception e) {

e.printStackTrace();

} finally {

if (reader != null) {

try {

reader.close();

} catch (IOException e) {

e.printStackTrace();

}

reader = null;

}

}

return blnRet;

}

/**

* 获取U盘的路径和名称

*/

private void getUName() {

Class> volumeInfoClazz = null;

Method getDescriptionComparator = null;

Method getBestVolumeDescription = null;

Method getVolumes = null;

Method isMountedReadable = null;

Method getType = null;

Method getPath = null;

List> volumes = null;

try {

volumeInfoClazz = Class.forName("android.os.storage.VolumeInfo");

getDescriptionComparator = volumeInfoClazz.getMethod("getDescriptionComparator");

getBestVolumeDescription = StorageManager.class.getMethod("getBestVolumeDescription", volumeInfoClazz);

getVolumes = StorageManager.class.getMethod("getVolumes");

isMountedReadable = volumeInfoClazz.getMethod("isMountedReadable");

getType = volumeInfoClazz.getMethod("getType");

getPath = volumeInfoClazz.getMethod("getPath");

volumes = (List>) getVolumes.invoke(mStorageManager);

for (Object vol : volumes) {

if (vol != null && (boolean) isMountedReadable.invoke(vol) && (int) getType.invoke(vol) == 0) {

File path2 = (File) getPath.invoke(vol);

String p1 = (String) getBestVolumeDescription.invoke(mStorageManager, vol);

String p2 = path2.getPath();

Log.d(TAG, "-----------path1-----------------" + p1); //打印U盘卷标名称

Log.d(TAG, "-----------path2 @@@@@-----------------" + p2); //打印U盘路径

}

}

} catch (Exception ex) {

ex.printStackTrace();

}

}

}