iPhone – UI Picker view

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.

.h file:-

 # import   <UIKIT/UIKIT .h>

 @ 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	one	one	one
two	two	two	two
Three	Three	Three	Three
Four	Four	Four	Four
Five	Five	Five	Five

Data Picker View:   

. h file:

# import   <UIKIT/UIKIT .h>

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

Image picker view:-

.h file:-

# import    <UIKIT/UIKIT .h>

@ 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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