xcode 当用户做出选择时如何隐藏 UIPickerView
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How to hide a UIPickerView when the user make its choice
提问by TheInterestedOne
I've created a custom UIPickerView with the following code
我使用以下代码创建了一个自定义 UIPickerView
UIPickerView *picker =[[UIPickerView alloc] initWithFrame:CGRectMake(139,50,161,30)];
picker.delegate=self;
picker.showsSelectionIndicator=YES;
picker.hidden=NO;
[self.view addSubview:picker];
Now I want to hide the pickerView when the user make its choice of a row simply with
现在我想在用户简单地选择一行时隐藏pickerView
picker.hidden=YES;
Now: 1) How can I recognize the choice of the user and then hide the unuseful pickerview? 2) Can I show the choice in a TextField? with @"choice"?
现在： 1) 如何识别用户的选择，然后隐藏无用的选择器视图？2) 我可以在 TextField 中显示选择吗？与@“选择”？
采纳答案by Pétur Ingi Egilsson
I'm using a UIPickerView as the inputView for a TextField (thus replacing the onscreen keyboard). I use the following delegate to dismiss the view.
我使用 UIPickerView 作为 TextField 的 inputView（从而替换了屏幕键盘）。我使用以下委托来关闭视图。
#pragma mark - UIPickerViewDelegate
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
// Code logic
[[self view] endEditing:YES];
}
回答by Inder Kumar Rathore
Add this line where you have created picker
在您创建选择器的位置添加此行
picker.delegate = self;
your callback
你的回电
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
picker.hidden=YES;
}
回答by Paras Joshi
use the delegate method of UIPickerViewlike bellow..
使用UIPickerView像下面这样的委托方法..
- (void)pickerView:(UIPickerView *)thePickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
yourTextField.text = [yourArray objectAtIndex:row];
thePickerView.hidden = YES;
}
Also you can take one UIButtonand hide this with action event of UIButton.
你也可以拿一个UIButton并用动作事件隐藏它UIButton。
回答by Shashank Kulshrestha
You can use UINavigationBar and Barbutton with cancel and Done text upon it.
您可以使用带有取消和完成文本的 UINavigationBar 和 Barbutton。
You can refer the following link
你可以参考以下链接
Objective C implementing a UIPickerView with a "Done" button
回答by Ankit Goyal
UIView *addMealView; // here i am showing my picker
UIView *addMealView; // 这里我展示了我的选择器
- (void)pickerView:(UIPickerView *)pickerView didSelectRow: (NSInteger)row inComponent:(NSInteger)component
{
[addMealView endEditing:YES];
}
回答by 5573352
I'm using a UIPickerView as the inputView for a TextField (for replacing the standard keyboard). I use the ResignFirstResponder (TextField method) to dismiss the view.
我使用 UIPickerView 作为 TextField 的 inputView（用于替换标准键盘）。我使用 ResignFirstResponder（TextField 方法）关闭视图。
