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我想通过 SoundLoader 模块在 kivy 中加载多个声音文件 (*.ogg)。这些文件从 300kB 到 700kB 大。

发生的情况是:前几个文件被加载,然后它跳过剩余的文件。

有没有更好(也许更快)的方式来加载文件?是否可以将已加载的文件“链接”到另一个 Button 实例,而不复制它(或损害它的文本)?

这是有问题的代码:

    #Getting filenames:

    for line in rawsongs:
        if ',' in line:
            items = line.split(', ')

            #Creating instances of Buttons, which control (play and stop)
            #the soundfiles:

            btn = AudioButton(
            text=(items[1]+' - '+items[2]), font_size=50, 
            sound = SoundLoader.load(items[2]+'.ogg'), 
            size_hint_y = None, height = 240, group = 'audio')

            #adding the Button to the Layout:
            grid.add_widget(btn)
        else:
            pass

提前致谢 ;)

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1 回答 1

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在与来自#kivy 的人进行了一些 IRC 之后,我被建议使用 kivy - 实习生“缓存管理器” 缓存管理器文档@kivy.org ,所以更新后的代码是这样的:

    #NEW: Registering the Cache

    Cache.register('songcache', timeout = 100)

    #Getting filenames:

    for line in rawsongs:
        if ',' in line:
            items = line.split(', ')

            #NEW: Check if the file is already cached:

            if Cache.get('songcache', items[2]) == None:

                #Setting up the button:

                btn = AudioButton(
                    text=(items[1]+' - '+items[2]), font_size=50, 
                    sound = SoundLoader.load(items[2]+'.ogg'), 
                    size_hint_y = None, height = 240, group = 'metro')

                #NEW: Adding the instance of the soundfile to the cache:

                Cache.append('songcache', items[2], btn.sound)

                grid.add_widget(btn)
            else:
                btn = AudioButton(
                    text=(items[1]+' - '+items[2]), font_size=50, 

                    #NEW: Linking the previously Cached instance with the new Button

                    sound = Cache.get('songcache', items[2]), 
                    size_hint_y = None, height = 240, group = 'metro')
                grid.add_widget(btn)           
        else:
            pass

因此,感谢#kivy 的帮助!

于 2012-09-10T16:30:20.720 回答