android - 如何修复 kivy plyer vibrate android test apk 中的“jnius.jnius.JavaException”（使用 buildozer 编译）

Question

我不想用 kivy 测试 plyer 库，我试图测试一个简单的 android vibrate。该应用程序以此日志结束：

04-17 23:49:40.292 15287 15340 I python  :    File "jnius/jnius_export_class.pxi", line 1034, in jnius.jnius.JavaMultipleMethod.__call__
04-17 23:49:40.292 15287 15340 I python  :  jnius.jnius.JavaException: No methods matching your arguments, available: [u'(ILjava/lang/String;[JILandroid/media/AudioAttributes;)V', u'(ILjava/lang/String;JLandroid/media/AudioAttributes;)V']
04-17 23:49:40.292 15287 15340 I python  : Python for android ended.

这是一个简单的 Kivy plyer 振动测试

Ubuntu 18.04 - Kivy v1.10.1 - Python v2.7.15rc1 - plyer-1.4.0 - Buildozer 0.39 - cython-0.29.7 - pyjnius-1.2.0

__version__ = '1.0'

import kivy

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.button import Button

from plyer import vibrator

class TestApp(App):

    def build(self):
        bl = BoxLayout()
        btn = Button(text='Vibrate')
        bl.add_widget(btn)
        btn.bind(on_press=self.callback)
        return bl

    def callback(instance, value):
        vibrator.vibrate(10)

buildozer.spec

requirements = kivy, python2
android.permissions = VIBRATE

我期待一个简单的安卓手机振动测试