[英]Can I get the element by Tag from iOS?
我想找一個按鈕,我已經將標簽分配到了那里,我該怎么辦?
使用viewWithTag
方法。 例如,如果您的按鈕在控制器的視圖中並且您的按鈕的標記為100,則以下行將返回該按鈕:
UIButton *button = (UIButton *)[self.view viewWithTag:100];
編輯:
在Swift中獲取帶有特定標簽的視圖-
let view = self.view.viewWithTag(100)
如果要確保您具有特定的視圖類型(例如UIButton),則應檢查該類型:
if let button = self.view.viewWithTag(100) as? UIButton {
//Your code
}
UIButton *button=(UIButton *)[self.view viewWithTag:tag];
//現在您可以根據標簽值獲取按鈕
//Get View using tag
UITextField *textFieldInView = (UITextField*)[self.view viewWithTag:sender.tag+1000];
UILabel *labelInView = (UILabel*)[self.view viewWithTag:sender.tag+2000];
//Print its content based on the tags
NSLog(@"The tag is %d ", textFieldInView.tag);
NSLog(@"The tag is %d ", labelInView.tag);
NSLog(@"The Content is %@ ", textFieldInView.text);
NSLog(@"The Content is %@ ", labelInView.text);
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