UIComboBox For iPhone.

I have made custom file by using which you can use UICombo box in ios code.Let the code begins.

UICombo.h 

	// Created by Prince Kumar Sharma on 27/02/13.
	// Copyright (c) 2013 Prince Kumar Sharma All rights reserved.
	#import <UIKit/UIKit.h>
	#import <QuartzCore/QuartzCore.h>
	typedef enum {
	CBRed,
	CBBlue,
	CBGray,
	CBLightGray,
	CBYellow,
	CBMagenta,
	CBBrown,
	CBPurple,
	CBBlack
	} CBColor;
	@class UIViewController;
	@interface UICombo : UIView<UITableViewDataSource,UITableViewDelegate,UITextFieldDelegate,UIScrollViewDelegate>
	{
	@private
	int numberOfObjects;
	UILabel *arrow;
	NSArray *items;
	UITableView *_tableView;
	UITextField *_textField;
	}
	- (id)initWithFrame:(CGRect)frame andItems:(NSArray*)itemArray andColor:(CBColor)color;
	-(void)addItem:(NSString*)item;
	-(void)insertItem:(NSString*)item AtIndex:(int)index;
	-(int)removeItem;
	-(void)removeItemAtIndex:(NSUInteger)index;
	-(void)refresh;
	@end

view raw UICombo.h hosted with ❤ by GitHub

UICombo.m

	// Created by Prince Kumar Sharma on 27/02/13.
	// Copyright (c) 2013 Prince Kumar Sharma All rights reserved.
	#import "UICombo.h"
	#define DEGREES_TO_RADIANS(angle) ((angle) / 180.0 * M_PI)
	@implementation UICombo
	- (id)initWithFrame:(CGRect)frame andItems:(NSArray*)itemArray andColor:(CBColor)color
	{
	if ((self = [super initWithFrame:frame]))
	{
	self->items=[[NSArray alloc]initWithArray:itemArray];
	self->numberOfObjects=[self->items count];
	[self setBackgroundColor:[UIColor lightGrayColor]];
	[self setAutoresizesSubviews:YES];
	_textField=[[UITextField alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width,self.frame.size.height)];
	[_textField.layer setCornerRadius:5.0];
	[_textField setBorderStyle:UITextBorderStyleBezel];
	if (self->items.count!=0) {
	[_textField setText:[self->items objectAtIndex:0]];
	}
	[_textField setFont:[UIFont systemFontOfSize:15.0f]];
	[_textField setDelegate:self];
	[_textField addTarget:self action:@selector(open) forControlEvents:UIControlEventTouchDown];
	arrow=[[UILabel alloc] initWithFrame:CGRectMake(self.frame.size.width-20,5,20,20)];
	[arrow setText:@">"];
	[arrow setTextAlignment:NSTextAlignmentCenter];
	[arrow setFont:[UIFont boldSystemFontOfSize:14.0f]];
	[arrow setBackgroundColor:[UIColor clearColor]];
	arrow.layer.anchorPoint=CGPointMake(0.5,0.5);
	[arrow setTransform:CGAffineTransformMakeRotation(DEGREES_TO_RADIANS(90))];
	[_textField addSubview:arrow];
	switch (color) {
	case CBRed:
	[_textField setTextColor:[UIColor redColor]];
	break;
	case CBBlue:
	[_textField setTextColor:[UIColor blueColor]];
	break;
	case CBGray:
	[_textField setTextColor:[UIColor grayColor]];
	break;
	case CBLightGray:
	[_textField setTextColor:[UIColor lightGrayColor]];
	break;
	case CBYellow:
	[_textField setTextColor:[UIColor yellowColor]];
	break;
	case CBMagenta:
	[_textField setTextColor:[UIColor magentaColor]];
	break;
	case CBBrown:
	[_textField setTextColor:[UIColor brownColor]];
	break;
	case CBPurple:
	[_textField setTextColor:[UIColor purpleColor]];
	break;
	case CBBlack:
	default:
	[_textField setTextColor:[UIColor blackColor]];
	break;
	}
	CAGradientLayer *gradient = [CAGradientLayer layer];
	gradient.frame = _textField.bounds;
	gradient.colors = [NSArray arrayWithObjects:(id)[[UIColor lightGrayColor] CGColor], (id)[[UIColor whiteColor] CGColor], nil];
	[_textField.layer insertSublayer:gradient atIndex:0];
	_tableView=[[UITableView alloc] initWithFrame:CGRectMake(0,_textField.frame.size.height, self.frame.size.width,0)];
	_tableView.autoresizingMask = UIViewAutoresizingFlexibleHeight;
	[_tableView setBackgroundColor:[UIColor clearColor]];
	[_tableView setSeparatorStyle:UITableViewCellSeparatorStyleNone];
	[_tableView setRowHeight:25];
	[_tableView setDelegate:self];
	[_tableView setDataSource:self];
	[_tableView.layer setMasksToBounds:YES];
	[_tableView.layer setCornerRadius:2.0];
	[_tableView.layer setBorderColor:[UIColor lightGrayColor].CGColor];
	[_tableView.layer setBorderWidth:1.5f];
	[_tableView.layer setShadowColor:[UIColor blackColor].CGColor];
	[_tableView.layer setShadowOpacity:0.8];
	[_tableView.layer setShadowRadius:3.0];
	[_tableView.layer setShadowOffset:CGSizeMake(2.0, 2.0)];
	[self addSubview:_textField];
	[self addSubview:_tableView];
	[_tableView reloadData];
	self.clipsToBounds=YES;
	}
	return self;
	}
	-(void)addItem:(NSString*)item
	{
	NSMutableArray *tempArray=[[NSMutableArray alloc] initWithArray:self->items];
	[tempArray addObject:item];
	self->items=[NSArray arrayWithArray:tempArray];
	self->numberOfObjects=[self->items count];
	}
	-(void)insertItem:(NSString*)item AtIndex:(int)index
	{
	NSMutableArray *tempArray=[[NSMutableArray alloc] initWithArray:self->items];
	[tempArray insertObject:item atIndex:index];
	self->items=[NSArray arrayWithArray:tempArray];
	self->numberOfObjects=[self->items count];
	}
	-(int)removeItem
	{
	NSMutableArray *tempArray=[[NSMutableArray alloc] initWithArray:self->items];
	[tempArray removeLastObject];
	self->items=[NSArray arrayWithArray:tempArray];
	self->numberOfObjects=[self->items count];
	return self->numberOfObjects;
	}
	-(void)removeItemAtIndex:(NSUInteger)index
	{
	NSMutableArray *tempArray=[[NSMutableArray alloc] initWithArray:self->items];
	[tempArray removeObjectAtIndex:index];
	self->items=[NSArray arrayWithArray:tempArray];
	self->numberOfObjects=[self->items count];
	}
	-(void)refresh
	{
	[_tableView reloadData];
	[self setNeedsDisplay];
	}
	// Only override drawRect: if you perform custom drawing.
	// An empty implementation adversely affects performance during animation.
	- (void)drawRect:(CGRect)rect
	{
	[_tableView setNeedsDisplay];
	[_textField setNeedsDisplay];
	}
	#pragma mark- Combo Animation
	-(void)open
	{
	__block CGRect rect=self.frame;
	rect.size.height=150;
	[UIView animateWithDuration:0.3 delay:0 options:UIViewAnimationOptionCurveLinear animations:^{
	[self setFrame:rect];
	[arrow setTransform:CGAffineTransformMakeRotation(DEGREES_TO_RADIANS(270))];
	} completion:^(BOOL finished){
	[self setNeedsDisplay];
	[_tableView reloadData];
	}];
	}
	-(void)close
	{
	__block CGRect rect=self.frame;
	rect.size.height=_textField.frame.size.height;
	[UIView animateWithDuration:0.3 delay:0 options:UIViewAnimationOptionCurveLinear animations:^{
	[self setFrame:rect];
	[arrow setTransform:CGAffineTransformMakeRotation(DEGREES_TO_RADIANS(-270))];
	} completion:^(BOOL finished) {
	[self setNeedsDisplay];
	}];
	}
	#pragma mark- UITableView datasource methods
	- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
	{
	return [self->items count];
	}
	- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
	{
	static NSString *cellIdentifier=@"cellIdentifier";
	UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:cellIdentifier];
	if (cell==nil) {
	cell=[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
	}
	cell.textLabel.font=[UIFont systemFontOfSize:14.0f];
	cell.textLabel.text=[self->items objectAtIndex:indexPath.row];
	CGRect cellFrame=cell.frame;
	cellFrame.size.height=25;
	[cell setFrame:cellFrame];
	UIView *bgView=[[UIView alloc] initWithFrame:cell.frame];
	CAGradientLayer *gradient = [CAGradientLayer layer];
	gradient.frame = bgView.bounds;
	gradient.colors = [NSArray arrayWithObjects:(id)[[UIColor lightGrayColor] CGColor], (id)[[UIColor whiteColor] CGColor], nil];
	[bgView.layer insertSublayer:gradient atIndex:0];
	[cell setBackgroundView:bgView];
	return cell;
	}
	#pragma mark- UITableView delegate methods
	- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
	{
	_textField.text=[self->items objectAtIndex:indexPath.row];
	[tableView deselectRowAtIndexPath:[tableView indexPathForSelectedRow] animated:YES];
	[self close];
	}
	- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
	{
	[self bringSubviewToFront:_textField];
	[self setNeedsDisplay];
	}
	#pragma mark- UITextField delegate method
	- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
	{
	return NO;
	}
	- (void)dealloc
	{
	_tableView.delegate=nil;
	_tableView.dataSource=nil;
	[_tableView removeFromSuperview];
	_tableView=nil;
	[arrow removeFromSuperview];
	arrow=nil;
	[_textField removeFromSuperview];
	_textField=nil;
	}
	@end

view raw UICombo.m hosted with ❤ by GitHub

Using Code:-

To use these files,you need to create instance of UICombo Class and pass items and textColor as parameter as given below:

NSArray *itemArray=[[NSArray alloc] initWithObjects:@"BMW",@"Ferrari",@"Swift Desire",nil];

UICombo  *combo=[[UICombo alloc] initWithFrame:CGRectMake(10, 30, 200, 30) andItems:itemArray andColor:CBBrown];

and At Last add it as subview to your view on which you want to display it.

[self.view addSubview:combo];

These combo includes methods to addItem , InsertItemAtIndex,removeItem,removeItemAtIndex,
refresh combo etc.

Note:- Include QuartzCore framework.


                                               
You can have a sample code IOSCombo

Stock Ticker

Stock Ticker is simply a file that will allow to pass views and number of views to get display on your tickerView.

Ticker you have always see on pull down shutter in your iphone.
Here I have passed stock Views and Currency views.
You can pass your views to display.This is a continuous object display.No space will come then ticker ends.It will continue with first object of the ticker Views array.

 

Using:- To use it,import StockTicker.h file in your code window.Made an array of UIViews or UILabels whatever you want to display as objects on your ticker.

 

  Make TickerView instance as

StockTiker *stkticker=[[StockTiker alloc] initWithFrame:CGRectMake(0, 0, 320, 20)];

view raw one.m hosted with ❤ by GitHub

  Set its properties as

	stkticker.tdelegate=self;
	stkticker.ttag=0;
	[stkticker setBackgroundColor:[UIColor clearColor]];
	[self.navigationController.navigationBar addSubview:stkticker];

view raw two.m hosted with ❤ by GitHub

  Implement its delegate method as:

	#pragma mark- UITickerView delegate method
	- (NSInteger)numberOfRowsintickerView:(StockTiker *)tickerView
	{
	return [objectArray count];
	}
	- (id)tickerView:(StockTiker*)tickerView cellForRowAtIndex:(int)index
	{
	return [objectArray objectAtIndex:index];
	}
	@end

view raw three.m hosted with ❤ by GitHub

Stock Tikcer.h 

	// Created by Prince Kumar Sharma on 20/02/13.
	// Copyright (c) 2012 Prince Kumar Sharma. All rights reserved.
	#import <UIKit/UIKit.h>
	@class StockTiker;
	@protocol UIStockTickerDelegate<NSObject>
	@required
	- (NSInteger)numberOfRowsintickerView:(StockTiker *)tickerView;
	- (id)tickerView:(StockTiker*)tickerView cellForRowAtIndex:(int)index;
	@end
	@interface StockTiker : UIScrollView<UITableViewDataSource>
	{
	@private
	int count;
	int numberOfObjects;
	id<UIStockTickerDelegate> tdelegate;
	}
	@property (assign) id<UIStockTickerDelegate>tdelegate;
	@property(assign)NSUInteger ttag;
	-(void)start;
	@end

view raw StockTiker.h hosted with ❤ by GitHub

 Stock Ticker.m  

	// Created by Prince Kumar Sharma on 20/02/13.
	// Copyright (c) 2012 Prince Kumar Sharma. All rights reserved.
	#import "StockTiker.h"
	@implementation StockTiker
	@synthesize tdelegate=_tdelegate;
	@synthesize ttag=_ttag;
	- (id)initWithFrame:(CGRect)frame
	{
	self = [super initWithFrame:frame];
	if (self) {
	// Initialization code
	}
	return self;
	}
	// Only override drawRect: if you perform custom drawing.
	// An empty implementation adversely affects performance during animation.
	- (void)drawRect:(CGRect)rect
	{
	// Drawing code
	}
	-(void)start
	{
	count=0;
	numberOfObjects=[_tdelegate numberOfRowsintickerView:self];
	[NSTimer scheduledTimerWithTimeInterval:0.002 target:self selector:@selector(moveObjects) userInfo:nil repeats:YES];
	[NSTimer scheduledTimerWithTimeInterval:0.01 target:self selector:@selector(checkPosition) userInfo:nil repeats:YES];
	}
	-(void)addElement:(UIView*)subView
	{
	if (![self.subviews containsObject:(id)subView]) {
	[subView setFrame:CGRectMake(self.frame.size.width, 0, subView.frame.size.width, subView.frame.size.height)];
	[self addSubview:subView];
	}
	}
	-(void)checkPosition
	{
	UIView *view=[self.tdelegate tickerView:self cellForRowAtIndex:count];
	CGRect rect=[view frame];
	float x=rect.origin.x+rect.size.width;
	if (x<300) {
	count=count+1;
	if (count==numberOfObjects) {
	count=0;
	}
	}
	UIView *subView=[self.tdelegate tickerView:self cellForRowAtIndex:count];
	[self addElement:subView];
	if ((rect.origin.x+rect.size.width)<0) {
	[view removeFromSuperview];
	}
	}
	-(void)moveObjects
	{
	CGRect rect;
	for (UIView *view in self.subviews) {
	rect=[view frame];
	rect.origin.x=rect.origin.x-0.1;
	[view setFrame:rect];
	[view setNeedsDisplayInRect:rect];
	}
	}
	@end

view raw StockTiker.m hosted with ❤ by GitHub

You can have a sample code StockTicker