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exposure:颤动的传感器小部件,当其曝光时会通知您
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2021-04-16
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曝光小部件 这是一个小部件,可以自动监视子小部件是否已暴露。 在窗口视口中找到子窗口小部件时,它将开始检测。 当停留时间超过曝光时间条件(默认值为0.5s)并且曝光区域大于可见性分数条件(默认值为50%)时,它将触发曝光回调并将Key值记录在队列中(默认值为最多可存储100个密钥)。 当在队列中遇到相同的密钥时,它将不会检测到。 安装 将此添加到您程序包的pubspec.yaml文件中。 dependencies : exposure : ^1.0.3 用法 ExposureDetector ({ key : Key ( 'exposure' ), // Custom Key child : childWidget, //Child Widget exposure : callBack // Exposure Callback }); 例子 配置 Ex
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