質問編集履歴
1
追記
test
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File without changes
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test
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@@ -97,3 +97,155 @@
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on_press: root.start_delay()
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```
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追記 2018/2/1
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103
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期待した結果が得られたコード
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105
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```Python
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# -*- coding: utf-8 -*
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109
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from kivy.app import App
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from kivy.lang import Builder
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112
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113
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from kivy.uix.boxlayout import BoxLayout
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from kivy.clock import Clock
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116
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Builder.load_string("""
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118
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<MainFrame>:
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orientation: "vertical"
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Label:
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id: info
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text: "not yet"
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Button:
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text: "Start delay"
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on_press: root.start_delay()
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""")
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139
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class MainFrame(BoxLayout):
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def __init__(self, **kwargs):
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144
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super(MainFrame, self).__init__(**kwargs)
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def start_delay(self):
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def callback(dt):
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self.ids["info"].text = "Done"
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Clock.schedule_once(callback, 3)
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class delay_test(App):
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def build(self):
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return MainFrame()
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if __name__ == "__main__":
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delay_test().run()
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```
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上のコードを別のやり方でやろうとしたコード
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178
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結果、エラーで強制終了。
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180
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181
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```Python
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# -*- coding: utf-8 -*
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from kivy.app import App
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186
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from kivy.lang import Builder
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188
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from kivy.uix.boxlayout import BoxLayout
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190
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from kivy.clock import Clock
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192
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Builder.load_string("""
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<MainFrame>:
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orientation: "vertical"
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Label:
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id: info
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text: "not yet"
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Button:
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text: "Start delay"
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on_press: root.start_delay()
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""")
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class MainFrame(BoxLayout):
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def __init__(self, **kwargs):
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super(MainFrame, self).__init__(**kwargs)
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def start_delay(self):
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Clock.schedule_once(self.change_text, 3)
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def change_text(self):
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self.ids["info"].text = "Done"
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class delay_test(App):
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def build(self):
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return MainFrame()
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if __name__ == "__main__":
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delay_test().run()
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```
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