ios UIPickerView 作为 UITextField 的 inputView
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UIPickerView as inputView of UITextField
提问by SilverHood
I've read a lot about how I can use a UIPickerViewas the inputViewof my UITextField. The thing is, I am able to call the UIPickerViewwhen I tap on the UITextField. However, my app always loads with the UIPickerViewshown. I have already tried changing the myownpickerview.hidden = YES;in viewDidLoad, but this causes problems when I click on the UITextField. It won't show up, and if I click multiple times, the debugger shows that there would be an error.
我已经阅读了很多关于如何使用 aUIPickerView作为inputView我的UITextField. 问题是，UIPickerView当我点击UITextField. 但是，我的应用程序始终加载UIPickerView显示。我已经尝试过更改myownpickerview.hidden = YES;in viewDidLoad，但是当我单击UITextField. 它不会出现，如果我多次单击，调试器会显示会出现错误。
Can anyone point me in the right direction? I only want the UIPickerViewshown after I tap on the UITextField
任何人都可以指出我正确的方向吗？我只想要UIPickerView在我点击后显示UITextField
I'm still working on my first ever iOS app. Please be patient. Thank you =)
我仍在开发我的第一个 iOS 应用程序。请耐心等待。谢谢你=)
回答by Aklesh Rathaur
Try this, it works fine, put it in viewdidload.
试试这个，它工作正常，把它放在viewdidload中。
yourpicker = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 50, 100, 150)];
[yourpicker setDataSource: self];
[yourpicker setDelegate: self];
yourpicker.showsSelectionIndicator = YES;
self.yourtextfield.inputView = yourpicker;
do not[self.view addSubview: yourpicker];this
不要[self.view addSubview: yourpicker];这个
回答by Sureshkumar Linganathan
Use like this,
像这样使用，
// Picker
UIPickerView *picker = [[UIPickerView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width,150)];
picker.dataSource = self;
picker.delegate = self;
// Tool bar
UIToolbar *pickerToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width,35)];
pickerToolbar.barStyle = UIBarStyleDefault;
// Bar button
UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(pickerDoneButtonTapped:)];
UIBarButtonItem *flexSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil];
[pickerToolbar setItems:@[flexSpace,doneButton]];
self.selectedLockerTextFiled.inputAccessoryView = pickerToolbar;
self.selectedLockerTextFiled.inputView = picker;
Below code for done button actions,
下面是完成按钮操作的代码，
-(void)pickerDoneButtonTapped:(id)picker{
[self.view endEditing:YES];}
