@interface CustomNavigationController : UINavigationController {
}
@end
#import "CustomNavigationController.h"
@implementation UINavigationBar(background)
- (void)drawRect:(CGRect)rect {
[super drawRect:rect];
UIImage* image = [UIImage imageNamed: @"title_bg.png"];
[image drawInRect:CGRectMake(0,0,self.frame.size.width,self.frame.size.height)];
}
@end
@implementation CustomNavigationController
@end
#ifdef DEBUG
#define Log(s, ...) NSLog(s, ##__VA_ARGS__)
#else
#define Log(s, ...)
#endif
@interface Logger : NSObject {
}
+ (NSString*)path;
+ (void)write:(NSString*)str;
+ (NSString*)read;
+ (void)remove;
@end
#import "Logger.h"
@implementation Logger
+ (NSString*)path{
NSString *docsDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *path = [docsDirectory stringByAppendingPathComponent:@"log.txt"];
return path;
}
+ (void)write:(NSString*)str{
#ifdef DEBUG
NSDateFormatter* dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"HH.mm.ss"];
NSString* log = [NSString stringWithFormat:@"%@-%@\n\r" , [dateFormatter stringFromDate:[NSDate date]] , str];
[dateFormatter release];
NSString* storeLog = [Logger read] ? [Logger read] : @"";
NSData *dataToWrite = [[NSString stringWithString:[storeLog stringByAppendingString:log]] dataUsingEncoding:NSUTF8StringEncoding];
[dataToWrite writeToFile:[Logger path] atomically:YES];
#endif
}
+ (NSString*)read{
return [[[NSString alloc] initWithContentsOfFile:[Logger path]] autorelease];
}
+ (void)remove{
NSFileManager *fileManager = [NSFileManager defaultManager];
if ([fileManager fileExistsAtPath:[Logger path]]){
[fileManager removeItemAtPath:[Logger path] error:NULL];
}
[fileManager release];
}
@end
#ifdef DEBUG
#if TARGET_IPHONE_SIMULATOR == 0
Log([Logger read]);
[Logger remove];
#endif
#endif
#if TARGET_IPHONE_SIMULATOR == 1
NSLog(@"simulator");
#else
NSLog(@"device");
#endif
0. 목적 및 동기
요구되는 디자인이 기본 UIPageControl의 UI를 사용하지 않는다.
그래서 CustomPageControl 이 필요해졌다.
UI control구조에 익숙한 사람이라면 control 들은
subcontrol 들의 조합으로 이루어 졌다는 사실을 예상할 수 있을것이다.
UIPageControl 도 마찬가지로 점들을 이루는 UIImageView 가
subcontrol 로 존재한다.
1. 코드
@interface CustomPageControl : UIPageControl {
}
@end
#import "CustomPageControl.h"
#define kOffImage [UIImage imageNamed:@"offImage.png"]
#define kOnImage [UIImage imageNamed:@"onImage.png"]
@implementation CustomPageControl
- (void)layoutSubviews{
[super layoutSubviews];
UIImage* image = kOffImage;
for(UIImageView* view in self.subviews){
CGRect frame = view.frame;
frame.size = image.size;
view.frame = frame;
view.image = image;
}
}
- (void)setCurrentPage:(int)index{
[super setCurrentPage:index];
for(int i = 0 ; i < [self.subviews count] ; i++){
UIImageView* view = [self.subviews objectAtIndex:i];
view.image = (i == index) ? kOnImage : kOffImage;
}
}
@end
#import "Page2ViewController.h"
#import "Page1ViewController.h"
#import "popToViewControllerViewController.h"
@implementation popToViewControllerViewController
- (void)viewDidUnLoad{
[[NSNotificationCenter defaultCenter] removeObserver:self name:@"goPage2" object:nil];
}
- (void)viewDidLoad{
self.title = @"root";
self.view.backgroundColor = [UIColor yellowColor];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(goPage2) name:@"goPage2" object:nil];
UIButton* button = [[UIButton alloc] initWithFrame:CGRectMake(100,100,100,100)];
[button setTitle:@"go page 1" forState:UIControlStateNormal];
[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[button addTarget:self action:@selector(goPage1) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:button];
[button release];
}
- (void)goPage1{
Page1ViewController* viewController = [[Page1ViewController alloc] init];
[self.navigationController pushViewController:viewController animated:YES];
[viewController release];
}
- (void)goPage2{
[self.navigationController popToViewController:self animated:NO];
Page2ViewController* viewController = [[Page2ViewController alloc] init];
[self.navigationController pushViewController:viewController animated:YES];
[viewController release];
}
@end
@implementation Page1ViewController
- (void)viewDidLoad{
self.title = @"page1";
self.view.backgroundColor = [UIColor redColor];
UIButton* button = [[UIButton alloc] initWithFrame:CGRectMake(100,100,100,100)];
[button setTitle:@"go page 2" forState:UIControlStateNormal];
[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[button addTarget:self action:@selector(goPage2) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:button];
[button release];
}
- (void)goPage2{
[[NSNotificationCenter defaultCenter] postNotificationName:@"goPage2" object:nil];
}
@end
@implementation Page2ViewController
- (void)viewDidLoad{
self.title = @"page2";
self.view.backgroundColor = [UIColor grayColor];
}
@end
popToViewController_2.zip