1、UITextField限制输入字数
private func setupRAC() {
rightTextField.rx.text.orEmpty.subscribe(onNext: { [weak self] (text) in
guard let `self` = self else { return }
var string = text
// 获取非选中状态文字范围
let selectedRange = self.rightTextField.markedTextRange
// 没有非选中文字，截取多出的文字
if selectedRange == nil {
if string.count > 10 {
string = (string as NSString).substring(to: 10)
self.rightTextField.text = string
}
if let model = self.addressModel {
model.textFieldValue = string
debugPrint("textFieldValue = \(string)")
}
}
}).disposed(by: rx.disposeBag)
Observable.of(multiLineTextField.rx.text).merge().subscribe(onNext: { [weak self] in
guard let `self` = self else { return }
if var string = $0 {
if string.count > 200 {
//通过字符串截取实现限制200字符长度
string = (string as NSString).substring(to: 200)
self.multiLineTextField.text = string
}
if let model = self.addressModel {
model.textFieldValue = string
}
debugPrint("multiLineTextField.frame = \(self.multiLineTextField.frame)")
}
}).disposed(by: rx.disposeBag)
}
