uipicker

How to change the picker rows based on another picker's selection?

那年仲夏 提交于 2019-12-06 14:17:59
问题 I have two pickers - country and region. I need to populate the region picker based on the row selected in the country picker. I have arrays to populate both the pickers. I need some help to change the rows of region picker based on the country picker's selection. Any help would be greatly appreciated. Thanks a lot in advance. 回答1: Ok You have two pickers lets say countryPicker and regionPicker. in the delegate method for UIPickerView add one condition - (NSString *)pickerView:(UIPickerView *

how to get Custom UIPickerView

和自甴很熟 提交于 2019-12-04 05:48:19
Hey Guys Please help me i want to achieve the following functionality in Custom UIPiker As shown in below Picture. I want to change the text colour of selected area only like above Kirit Modi Add lable in your pickerview in your viewDidLoad method as below. Define label and myPickerView both in ViewController.h file - (void)viewDidLoad { myPickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 200, 320, 200)]; myPickerView.delegate = self; myPickerView.showsSelectionIndicator = YES; [self.view addSubview:myPickerView]; label = [[UILabel alloc] initWithFrame:CGRectMake(145, 76, 36, 36)]

programmatically stop uipickerview animation on iphone

梦想与她 提交于 2019-12-04 05:19:31
I have a UIActionSheet containing a picker and a UIToolbar. On the UIToolBar there is a save button. However, some of my users reported pressing the save button before the UIPickerView stops spinning thus only retrieving the initial value (before spinning). Is there a way to get the currently selected item of the UIPickerView once the user taps save or get feedback of the active selected item while it's spinning? Thanks Even if they dismiss the picker while it's still spinning, the picker will still call the delegate with the final selected row once it stops, even if it isn't visible. Assuming

Multiple UIPickerViews

南笙酒味 提交于 2019-11-30 09:37:26
问题 I have a dilemma, I have two UIPickerViews which "show" when two distinct views load. I started with one UIPickerView and was able to get that up and running by loading the array and all the other UIPickerView actions within the ViewController. I thought it would be as simple as copy/pasting the same methods for the new UIPickerView , but just changing the variable names, also within the same UIViewController . Problem is - both UIPickerView are showing the same data set in the drop down ? Am

Multiple sources for UIPickerView on textfield editing

风格不统一 提交于 2019-11-30 07:02:33
问题 What i have so far is @synthesize txtCountry,txtState; int flgTextField; - (BOOL)textFieldShouldBeginEditing:(UITextField *)textField { [pickerView reloadAllComponents]; // Make a new view, or do what you want here if(textField == txtCountry || textField == txtState){ flgTextField = textField.tag; [UIView beginAnimations:nil context:NULL]; //[pvState setFrame:CGRectMake(0.0f, 199.0f, 320.0f, 216.0f)]; [UIView commitAnimations]; return NO; } else { return YES; } } - (NSInteger

Multiple UIPickerViews

偶尔善良 提交于 2019-11-29 15:55:26
I have a dilemma, I have two UIPickerViews which "show" when two distinct views load. I started with one UIPickerView and was able to get that up and running by loading the array and all the other UIPickerView actions within the ViewController. I thought it would be as simple as copy/pasting the same methods for the new UIPickerView , but just changing the variable names, also within the same UIViewController . Problem is - both UIPickerView are showing the same data set in the drop down ? Am I simply missing something obvious here? Updated below I did that for all four methods below and now

Multiple sources for UIPickerView on textfield editing

混江龙づ霸主 提交于 2019-11-29 00:41:10
What i have so far is @synthesize txtCountry,txtState; int flgTextField; - (BOOL)textFieldShouldBeginEditing:(UITextField *)textField { [pickerView reloadAllComponents]; // Make a new view, or do what you want here if(textField == txtCountry || textField == txtState){ flgTextField = textField.tag; [UIView beginAnimations:nil context:NULL]; //[pvState setFrame:CGRectMake(0.0f, 199.0f, 320.0f, 216.0f)]; [UIView commitAnimations]; return NO; } else { return YES; } } - (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView; { return 1; } - (NSInteger)pickerView:(UIPickerView *

Multiple Row Selection in UIPickerView

喜夏-厌秋 提交于 2019-11-27 19:30:38
I want to select multiple rows in a UIPickerView, so I had the idea to show my data in a table and add this table as subview to the picker. I have tried this but didn't succeed. Any suggestions how to do this? the "accepted" UI for multiple selection on the iPhone is to use a UITableView with checkmarks (i.e. don't use UIPickerView for multiple selection). However, if you must, there are instructions on how to fake it here http://www.iphonedevsdk.com/forum/iphone-sdk-development/14634-uipickerview-multiple-selection.html by making an empty picker and putting a table view over the top of it.

Custom UIPickerView with three Components each showing label on Selection Indicator

喜欢而已 提交于 2019-11-27 02:51:48
问题 In my app I am trying to make an custom UIPickerView which contains three components(days, hours and minutes). I have already made the custom picker with three components. And Now I am stuck at how I can add the labels to the selection indicator which shows which component is for days, hours or minutes. I have already gone through each and every link or question posted on this site but none them helped me. I am trying to implement something like this image Can any one suggest me how can I

Multiple Row Selection in UIPickerView

流过昼夜 提交于 2019-11-26 19:55:01
问题 I want to select multiple rows in a UIPickerView, so I had the idea to show my data in a table and add this table as subview to the picker. I have tried this but didn't succeed. Any suggestions how to do this? 回答1: the "accepted" UI for multiple selection on the iPhone is to use a UITableView with checkmarks (i.e. don't use UIPickerView for multiple selection). However, if you must, there are instructions on how to fake it here http://www.iphonedevsdk.com/forum/iphone-sdk-development/14634