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isEdge对部分安卓机判断不生效 #23

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@zhengcanbiao

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@zhengcanbiao

亲测部分android机型拖动多次会拖动不了,因为 ele.scrollHeight - ele.scrollTop === ele.clientHeight + 1,所以一直判断不为edge,上拉刷新不了,所以isEdge方法可以加一行代码兼容一下。
机型为:oppo A57

修改isEdge函数
isEdge(ele, direction) {
const container = this.props.getScrollContainer();
// 父容器需要设置height100vh,scroll auto时,scrollTop才会改变,不然一直为0
if (container && container === document.body) {
// In chrome61 document.body.scrollTop is invalid
const scrollNode = document.scrollingElement ? document.scrollingElement : document.body;
if (direction === UP) {
return scrollNode.scrollHeight - scrollNode.scrollTop <= window.innerHeight;
}
if (direction === DOWN) {
return scrollNode.scrollTop <= 0;
}
}
if (direction === UP) {
// 兼容部分android机型,需要 + 1px
return ele.scrollHeight - ele.scrollTop === ele.clientHeight + 1 || ele.scrollHeight - ele.scrollTop === ele.clientHeight;
}
if (direction === DOWN) {
return ele.scrollTop <= 0;
}
}

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