How to pull the data from plist to UIPickerView? - iphone

Question

can please help to provide the tutorial on how to pull the data from plist to UIPickerView?

Answer 1

Answer 2

it useful for u.
pickerViewcontroller.h
#import <UIKit/UIKit.h>
#define kStateComponent 0
#define kZipComponent 1
#interface PickerViewController : UIViewController
<UIPickerViewDataSource,UIPickerViewDelegate>{
IBOutlet UIPickerView *dpicker;
NSDictionary *stateZip;
NSArray *states;
NSArray *zips;
}
#property (nonatomic,retain) UIPickerView *dpicker;
#property (nonatomic,retain) NSDictionary *stateZip;
#property (nonatomic, retain) NSArray *states;
#property (nonatomic, retain) NSArray *zips;
#end
pickerViewcontroller.m
#import "PickerViewController.h"
#implementation PickerViewController
#synthesize dpicker;
#synthesize stateZip;
#synthesize states;
#synthesize zips;
-(void) viewDidLoad{
NSBundle *bundle = [NSBundle mainBundle];
NSString *plistPath =[bundle pathForResource:#"plistfilename" ofType:#"plist"];
NSDictionary *dictionary = [[NSDictionary alloc] initWithContentsOfFile:plistPath];
self.stateZip=dictionary;
[dictionary release];
NSArray *component = [self.stateZip allKeys];
NSArray *sorted =[component sortedArrayUsingSelector:#selector(compare:)];
self.states=sorted;
NSString *selectedState = [self.states objectAtIndex:0];
NSArray *array = [stateZip objectForKey:selectedState];
self.zips = array;
}
#pragma mark -
#pragma mark Memory management
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Relinquish ownership any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Relinquish ownership of anything that can be recreated in viewDidLoad or on demand.
// For example: self.myOutlet = nil;
}
- (void)dealloc {
[dpicker release];
[stateZip release];
[states release];
[zips release];
[super dealloc];
}
#pragma mark-
#pragma mark picker Data Source Methods
-(NSInteger) numberOfComponentsInPickerView:(UIPickerView *)pickerview
{
return 2;
}
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
if (component == kStateComponent)
return [self.states count];
return [self.zips count];
}
#pragma mark picker delegate Methods
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row
forComponent:(NSInteger)component
{
if(component == kStateComponent)
return[self.states objectAtIndex:row];
return [self.zips objectAtIndex:row];
}
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
if(component == kStateComponent)
{
NSString *selectedState = [self.states objectAtIndex:row];
NSArray *array=[stateZip objectForKey:selectedState];
self.zips=array;
[dpicker selectRow:0 inComponent:kZipComponent animated:YES];
[dpicker reloadComponent:kZipComponent];
}
}
#end

Answer 3

You can create your plist like this with CNSivakumr's code!
[plistfilename.plist][1]
[1]: http://i.stack.imgur.com/zVrSe.png/Users/satishmishra/Desktop/Screen Shot 2013-04-03 at 12.27.24 PM.png