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jmovxia / cldemo Goto Github PK
View Code? Open in Web Editor NEW记录平时博客中的Demo,持续更新
记录平时博客中的Demo,持续更新
作者是直接切换了rootViewController
,来达到其他页面切换语言的, 但是这样有个问题,假如用户在其他页面有了操作,切换了rootViewController
之后,其他页面的操作和状态都没了,感觉不优雅,支付宝这块比微信好很多,支付宝切换多语言之后,其他页面的操作状态都不会有任何变化
并没有像微信通讯录,当前字母可以显示背景颜色
项目怎么无法运行 pod 也不行
按照Demo的思路我自己写了一个功能。
可是如果Cell 一开始是暂停的状态。我点击开始后,总是得不到正确的时间
如题
error: Build input file cannot be found: '/Users/xxx/Downloads/CKD/CKD/Other/Gategory/AutoScale+Extension.swift' (in target 'CLDemo' from project 'CLDemo')
[!] Error installing libwebp
[!] /usr/bin/git clone https://chromium.googlesource.com/webm/libwebp /var/folders/xj/m57_s4rx18nbmfqkmrm09c8c0000gn/T/d20190725-66922-1x38cti --template= --single-branch --depth 1 --branch v1.0.2
Cloning into '/var/folders/xj/m57_s4rx18nbmfqkmrm09c8c0000gn/T/d20190725-66922-1x38cti'...
fatal: unable to access 'https://chromium.googlesource.com/webm/libwebp/': Failed to connect to chromium.googlesource.com port 443: Operation timed out
版主你好,游標卡尺滑動時候數字沒有跟著更換。
我將 indexValueCallback 改寫到 setItem裡面處理。
其原因是因為self.item在還沒初始化之前他取不到值。所以原先block在guard語句之後就會返回。
後續的函數功能都不會執行。
我的理解是 -> indexValueCallback 不能寫在懶加載定義裡面。因為初始化的時候 自己的CellProtocol 協議還沒有值 self.item 會造成崩潰
所以進行了下面的修改
func setItem(_ item: CLRecordVernierCaliperItem, indexPath: IndexPath) {
self.vernierCaliperView.indexValueCallback = {[weak self] (value) in
guard let weakSelf = self else { return } //item -> CLRecordVernierCaliperItem
weakSelf.item?.value = value.cgFloat
weakSelf.item?.valueChangeCallback?(value)
weakSelf.valueLabel.attributedText = weakSelf.attributedString(value, type: item.type)
}
//其餘代碼
}
您參考看看
item需要存储,这里永远return了nil,导致cell里面无法正常获取数据
private var xoAssociationKey: UInt8 = 0
var item: T? {
get {
return objc_getAssociatedObject(self, &xoAssociationKey) as? T
}
set(newValue) {
objc_setAssociatedObject(self, &xoAssociationKey, newValue, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN_NONATOMIC)
}
}
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