iPhone - UI Picker view

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Picker view:-

A PICKER VIEW lets the user choose between certain options by spinning a wheel on the screen. Picker views are well suited for choosing things like dates and times (as the date picker does) that have a moderate number of discrete options. Pickers consist of a rotating scrollable view, which is used for picking a value from the list of items.

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.h file:-

# import
@ interface divpickerviewController : UIviewController
{
NsMutableArray * aArray;
}
@ end

.m file:-

# import “ divpickerview viewController .h”
@ implementation divPickerview viewController
-(void) viewDidLoad
{
a Array = [[ NSMutableArray alloc] initWithObjects:
@ “one”, @ “two”, @ “three”, @ “four”, @ “five”, nil];
[ super viewDidLoad];
}

# Program Mark Pickerview Data Source:

-( NSInteger) numberOfComponentsInpicker view:
( UIPicker view :) pickerview
{
Return 4;
}

-(NSInteger) pickerview: ( UIpicker view *) pickerview
NumberofRowsInComponent: ( NSInteger)Component
{
Return [ aArray Count];
}

-(NSString *) pickerview : (UIPickerview *) pickerview
titleForRow: ( NSInteger) row forComponent:
(NSInteger )Component;
{
return [aArray objectAtIndex : row];
}

-(void) picker view : (UIpicker view *) pickerview
didSelectRow: ( NSInteger) row in ComponenT :
(NSInteger)Component
{
NSLog ( @ “ didSelectRow is called and row is %d and component is %d”, row Component);
}

Output:-

one

two

Three

Four

Five

Data Picker View:

. h file:

# import
@ interface divdatepickerviewController: UIViewController
{
IBoutlet UIDatePicker * Datepicker;
}
-( IBAction) dateChanged;
@ end

.m file:-

# import “ divdatepickerviewController. h”
@ implementation divdatepickerviewController
-(IB action) dateChanged
{
NSDate * date = [ datepicker date];
NSLog ( @ “date is %@”, date);
}

Fri Jul.15	2	55
Sat Jul.16	3	00	AM
Today	4	05	PM
Mon Jul18	5	10
Tue Jul19	6	15

Image picker view:-

.h file:-

# import
@ interface b8 ImagePickerviewController : UIviewController

< UINavigationControllerDelegate, UIImagePicker Controller Delegate>
{
}
-(IBAction) buttonClicked;
@ end

.m file:-

# import “b8ImagePickerviewController. h”
@ implementation b8ImagepickerviewController
-(IBAction) buttonClicked
{
UIImagePickerController * picker = [[ UIImagepickerController alloc] init];
[Picker SetSourceType: UIImagePickerControllerSourceTypephoto Library];
[picker setDelegate : self];
Picker . editing = YES;
[self PresentModelViewController: picker animated : YES];
}
-(void) imagePickerController : (UIImagePickerController *)
Picker didFinishPickingMedia withInfo:
(NSDictionary *) info
{
NSLog ( @ “editing info is %@”, info);
UIImage * image = [info objectForkey: @ “UIImagePicker ControllerOriginalImage”];
Self. view .backgroundColor = [UI color Colorwithpattern Image : image];
[ picker dismissModelviewControllerAnimated : YES”];
}
-(void) imagepickerControllerDidCancel : ( UIImagePickerController *) picker
{
[ self dismiss model viewControllerAnimated : YES];
}

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iPhone - UI Picker view

Data Picker View:

. h file:

Image picker view:-

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