I want to use picker view to display 12 digits in it that digit comes dynamic and it has to be light flight schedule display . Digits will be increasing always that i want to make it through picker. As i am new to IOS need your help. Thank you
#import "DetailViewController.h"
#interface DetailViewController ()<UIPickerViewDataSource,UIPickerViewDelegate>
#end
#implementation DetailViewController
- (void)viewDidLoad {
[super viewDidLoad];
UIPickerView *pickerview = [[UIPickerView alloc]init];
pickerview.delegate = self;
pickerview.dataSource = self;
[self.view addSubview:pickerview];
}
- (void)pickerView:(UIPickerView *)pV didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
}
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
return 1;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
return 12;
}
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
NSNumber *digit = #(row);
return [digit stringValue];
}
#end
You can use Simple Library and Then Add array of Digits .
here are Few Simple Library , try it once.
CPPickerView
ActionSheetPicker-3.0
AKPickerView
Related
Similar to how amazon does for selecting quantity of an item. I want it to then save the number to display in another tableview. Here is the code I have for my .m file. When I click on the text field the picker is empty.
#interface ApparelViewController ()
#property(nonatomic, readonly) NSInteger numberOfComponents;
#end
#implementation ApparelViewController
- (void)viewDidLoad {
[super viewDidLoad];
UIPickerView *picker = [[UIPickerView alloc] init];
self.quantity.inputView = picker;
//creating the arrays for the values in the picker wheel
self.quantity0 = #[#1, #2, #3, #4, #5];
}
//custom picker in text field
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
return 1;
}
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
return self.quantity0.count;
}
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow: (NSInteger)row forComponent:(NSInteger)component {
return self.quantity0[row];
}
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
self.quantity.text = self.quantity0[row];
[self.quantity resignFirstResponder];
}
Looks like you forgot to set the UIPicker's delegate to self.
In your viewDidLoad, try this:
picker.delegate = self;
Let me preface by saying that I am completely new to programming. I have also done a bunch of searching on this issue and haven't found an answer that seems to address exactly what I am doing.
The result I am looking for is a text field that can be populated by the user by using a pickerView. After putting a UITextView box in the .xib file I am not sure how make it call a pickerView when tapped and then populate from that picker view.
Thank you for any help given. Let me know if I need to clarify more.
Create a UIPickerView and set it as the inputView property of your UITextView. Then, register your class for the dataSource/delegate of the UIPickerView to populate it and know when it has changed selection. Below is a simple solution for a picker with a single component.
SomeViewController.h:
#interface SomeViewController : UIViewController <UIPickerViewDataSource, UIPickerViewDelegate>
{
UIPickerView *picker;
NSArray *dataSource;
}
SomeViewController.m:
- (void)viewDidLoad
{
[super viewDidLoad];
picker = [[UIPickerView alloc] init];
picker.dataSource = self;
picker.delegate = self;
myTextView.inputView = picker;
}
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
return 1;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
return [dataSource count];
}
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
return [dataSource objectAtIndex:row];
}
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
[myTextView setText:[dataSource objectAtIndex:row]];
}
how to change the language in IOS using UIPicker?
Languages: English, Chinese (Simplified), Bahasa Malaysia
When user selects Chinese (Simplified) it changes the contents of the labels based on languages above.
here's the code
ChangeLanguage.h
#interface ChangeLanguageViewController :UIViewController<UIPickerViewDataSource UIPickerViewDelegate>
#property (nonatomic, strong)IBOutlet UIPickerView *myPickerView;
#oroperty (nonatomic, strong)NSArray *languageArray;
#import "ChangeLanguageViewController.h"
#interface ChangeLanguageViewController ()
#end
- (void)viewDidLoad
{
myPickerView.delegate = self;
myPickerView.dataSource = self;
languageArray = [[NSArray alloc] initWithObjects:#"English", #"Chinese (Simplified)", #"Bahasa
Malaysia", nil];
#pragma mark - UIPickerView Delegate
//return the number of columns to display
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
return 1;
}
//returns the number of rows in each component.
-(NSInteger)pickerView:(UIPicker *)pickerView numberOfRowsInComponent:(NSInteger)component
{
return [languageArray count];
#pragma mark -UIPickerView Delegate
-(CGFloat)pickerView:(UIPickerView *)pickerView rowHeightForComponent:(NSInteger)component
{
return 30.0;
}
-(NSString *)pickerView:(UIPicker *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
return [languageArray objectAtIndex:row];
}
I am trying to create a PickerView view programatically.
I have followed all of the necessary steps however the picker just simply appears and then disappears straight away. No data can be seen.
I am setting the delegate and data source and I have implemented the necessary methods.
Here is my code:
in .h
#interface NJATimeEntryViewController : UIViewController <UIPickerViewDelegate, UIPickerViewDataSource>
#property (nonatomic, strong) UIPickerView *customerPicker;
#property (nonatomic, strong) NSArray *pickerTitles;
#end
in .m
- (void)viewDidLoad
{
[super viewDidLoad];
self.pickerTitles = #[#"ONE", #"TWO", #"THREE"];
self.customerPicker = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 200, 320, 200)];
self.customerPicker.dataSource = self;
self.customerPicker.delegate = self;
[self.view addSubview:self.customerPicker];
}
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
return 1;
}
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
return self.pickerTitles.count;
}
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
return [[self pickerTitles] objectAtIndex:row];
}
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
NSLog(#"Selected Row %d", row);
}
All help is appreciated thanks.
FIXED:
All i did was set the background color of the view controllers view and now it works. I see this as a bug as no where is it stated that the background color has to be set.
Set Some Background color ( except black )of your view, then try,
self.view.backgroundColor=[UIColor yellowColor];
I am using UIPickerView with UITextField. It is working when I use only one UITextField.
What I want is to use multiple TextField for one dynamic pickerview.
- (void)viewDidLoad
{
[super viewDidLoad];
picker = [[UIPickerView alloc] init];
picker.dataSource = self;
picker.delegate = self;
self.transitTF.inputView = picker;
self.theData = #[#"one",#"two",#"three",#"four"];
}
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
return self.theData.count;
}
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
return 1;
}
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
return self.theData[row];
}
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
self.transitTF.text = self.theData[row];
[self.transitTF resignFirstResponder];
}
This is what I use with one textField only.
Any help will be appreciated. Thanks.
Add tag property for each UITextField. In this case self.pickerView.inputView.tag you may use to find which textfield is using in current moment and you may fill picker with correct values