为什么安卓ACTION_UUID返回错误的对象

Question

我正在尝试使用kivy的python for android为android编写python蓝牙库。我使用jnius模块中的autoclass导入java类。到目前为止，它工作得很好，但是，当我调用函数fetchUuidsWithSdp（）并检查获取的UUID的操作意图时，我得到了一个错误的对象。我使用的代码是：

elif action == ACTION_UUID:
    print("....... ACTION_UUID .......")
    extras = intent.getExtras()
    fetchedUUIDs = extras.get(EXTRA_UUID)
    # fetchedUUIDs = intent.getParcelableArrayExtra(EXTRA_UUID)
    print("fetchedUUIDs object type is: ..............")
    print (fetchedUUIDs)
    for u in fetchedUUIDs:
        print u.toString()

因此，我在adb控制台中得到以下打印输出：

I/python  (30971): ....... ACTION_UUID .......
I/python  (30971): fetchedUUIDs object type is: ..............
I/python  (30971): [<android.os.Parcelable at 0x7c1f2600 jclass=android/os/Parcelable jself=<LocalRef obj=0x20f00dfa at 0x79f7bab0>>,     <android.os.Parcelable at 0x7c1

显示“fetcheduids”的对象类型为android.os.Parcelable包'列表而不是'parcelouid'列表。调用toString（）时，我得到以下跟踪：

I/python  (30971):  Traceback (most recent call last):
I/python  (30971):    File "jnius/jnius_proxy.pxi", line 47, in jnius.jnius.PythonJavaClass.invoke (jnius/jnius.c:24931)
I/python  (30971):    File "jnius/jnius_proxy.pxi", line 73, in jnius.jnius.PythonJavaClass._invoke (jnius/jnius.c:25609)
I/python  (30971):    File "/home/tito/code/python-for-android/build/python-install/lib/python2.7/site-packages/android/broadcast.py", line 18, in onReceive
I/python  (30971):    File "main.py", line 235, in on_broadcast
I/python  (30971):      print u.toString()
I/python  (30971):  AttributeError: 'android.os.Parcelable' object has no attribute 'toString'

我的代码有什么问题吗？非常感谢您的帮助。你知道吗

Answer 1

谢谢格伦的帮助。我使用的代码是androidsdk所解释的。你知道吗

我终于使用设备对象获得了服务UUID，该对象也在intent extras中传递，如下所示：

elif action == ACTION_UUID:
    print("....... ACTION_UUID .......")
    extras = intent.getExtras()
    fetchedDevice = extras.get(EXTRA_DEVICE)
    fetchedUUIDs = fetchedDevice.getUuids()
    if fetchedUUIDs:
        for u in fetchedUUIDs:
            print u.toString()