Question

我想通过SoundLoader模块在kivy中加载多个声音文件（* .ogg）。文件大小从300kB到700kB。

会发生什么：加载第一对文件，然后跳过剩余的文件。

是否有更好（也许更快）的方式来加载文件？是否可以将已经加载的文件“链接”到另一个Button实例，而不复制它（或者破坏它的文本）？

以下是相关代码：

    #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;）

Answer 1

在一些IRC与来自#kivy的人之后，我被建议使用kivy - 实习生“缓存管理器” Cache Manager docs @ kivy.org 所以更新的代码是这样的：

    #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

非常感谢#kivy的帮助！

Kivy：SoundLoader并加载多个文件，但不是'double-load'

1 个答案: