新代码
DatePickerViewController.h
#import <UIKit/UIKit.h>
@protocol DatePickerViewControllerDelegate;
@interface DatePickerViewController : UIViewController {
IBOutlet UIDatePicker *datePicker;
id<DatePickerViewControllerDelegate> delegate;
}
@property (retain) IBOutlet UIDatePicker *datePicker;
@property (assign) id<DatePickerViewControllerDelegate> delegate;
NSInteger buttonPressed;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil;
- (IBAction)doneButtonPressed:(id)sender;
@end
@protocol DatePickerViewControllerDelegate <NSObject>
@optional
-(void)datePickerViewController:(DatePickerViewController *)controller didChooseDate:(NSString *)chosenDate;
@end
DatePickerViewController.m
#import "DatePickerViewController.h"
@implementation DatePickerViewController
@synthesize datePicker, delegate;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
// Custom initialization
self.title = @"Date Picker";
}
return self;
}
- (void)viewDidLoad {
NSLog(@"Date Picker. viewDidLoad");
[super viewDidLoad];
double days = 2.0f;
datePicker.date = [NSDate dateWithTimeIntervalSinceNow:60.0f * 60.0f * 24.0f * days];
}
//-(void)datePickerViewController:(DatePickerViewController *)controller didChooseDate:(NSString *)chosenDate;
- (IBAction)doneButtonPressed:(id)sender
{
if ([self.delegate respondsToSelector:@selector(datePickerViewController:didChooseDate:)]) {
NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
[dateFormatter setDateStyle:NSDateFormatterMediumStyle];
NSString *dateString = [dateFormatter stringFromDate:[datePicker date]];
[self.delegate datePickerViewController:self didChooseDate:dateString];
[self dismissModalViewControllerAnimated:YES];
}
}
- (void)dealloc {
[datePicker release];
[super dealloc];
}
@end
DatePickerViewController2.h
#import <UIKit/UIKit.h>
@protocol DatePickerViewController2Delegate;
@interface DatePickerViewController2 : UIViewController {
IBOutlet UIDatePicker *datePicker2;
id<DatePickerViewController2Delegate> delegate;
}
@property (retain) IBOutlet UIDatePicker *datePicker2;
@property (assign) id<DatePickerViewController2Delegate> delegate;
NSInteger buttonPressed2;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil;
- (IBAction)doneButtonPressed2:(id)sender;
@end
@protocol DatePickerViewController2Delegate <NSObject>
@optional
-(void)datePickerViewController2:(DatePickerViewController2 *)controller didChooseDate:(NSString *)chosenDate;
@end
DatePickerViewController2.m
#import "DatePickerViewController2.h"
@implementation DatePickerViewController2
@synthesize datePicker2, delegate;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
// Custom initialization
self.title = @"Date Picker2";
}
return self;
}
- (void)viewDidLoad {
NSLog(@"Date Picker2. viewDidLoad");
[super viewDidLoad];
double days = 2.0f;
datePicker2.date = [NSDate dateWithTimeIntervalSinceNow:60.0f * 60.0f * 24.0f * days];
}
//-(void)datePickerViewController:(DatePickerViewController *)controller didChooseDate:(NSString *)chosenDate;
- (IBAction)doneButtonPressed2:(id)sender
{
if ([self.delegate respondsToSelector:@selector(datePickerViewController2:didChooseDate:)]) {
NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
[dateFormatter setDateStyle:NSDateFormatterMediumStyle];
NSString *dateString = [dateFormatter stringFromDate:[datePicker2 date]];
[self.delegate datePickerViewController2:self didChooseDate:dateString];
[self dismissModalViewControllerAnimated:YES];
}
}
- (void)dealloc {
[datePicker2 release];
[super dealloc];
}
@end
DatePickerModalExampleAppDelegate.h
#import <UIKit/UIKit.h>
@class DatePickerModalExampleViewController;
@interface DatePickerModalExampleAppDelegate : NSObject <UIApplicationDelegate> {
UIWindow *window;
DatePickerModalExampleViewController *viewController;
}
@property (nonatomic, retain) IBOutlet UIWindow *window;
@property (nonatomic, retain) IBOutlet DatePickerModalExampleViewController *viewController;
@end
DatePickerModalExampleAppDelegate.m
#import "DatePickerModalExampleAppDelegate.h"
#import "DatePickerModalExampleViewController.h"
@implementation DatePickerModalExampleAppDelegate
@synthesize window;
@synthesize viewController;
- (void)applicationDidFinishLaunching:(UIApplication *)application {
// Override point for customization after app launch
[window addSubview:viewController.view];
[window makeKeyAndVisible];
}
- (void)dealloc {
[viewController release];
[window release];
[super dealloc];
}
@end
DatePickerModalExampleViewController.h
#import <UIKit/UIKit.h>
#import "DatePickerViewController.h"
#import "DatePickerViewController2.h"
@interface DatePickerModalExampleViewController : UIViewController <DatePickerViewControllerDelegate> {
IBOutlet UIButton *button;
IBOutlet UIButton *button2;
IBOutlet UIButton *button3;
}
@property(nonatomic, retain) IBOutlet UIButton *button;
@property(nonatomic, retain) IBOutlet UIButton *button2;
@property(nonatomic, retain) IBOutlet UIButton *button3;
-(IBAction)buttonPressed:(id)sender;
-(IBAction)buttonPressed2:(id)sender;
@end
DatePickerModalExampleViewController.m
#import "DatePickerModalExampleViewController.h"
@implementation DatePickerModalExampleViewController
@synthesize button;
@synthesize button2;
@synthesize button3;
/*
// The designated initializer. Override to perform setup that is required before the view is loaded.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
// Custom initialization
}
return self;
}
*/
/*
// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView {
}
*/
/*
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[super viewDidLoad];
}
*/
-(IBAction)buttonPressed:(id)sender{
NSLog(@"I was pressed");
buttonPressed = ((UIButton *)sender).tag;
DatePickerViewController *datePickerViewController = [[DatePickerViewController alloc] initWithNibName:@"DatePickerViewController" bundle:nil];
datePickerViewController.delegate = self;
[self presentModalViewController:datePickerViewController animated:YES];
[datePickerViewController release];
switch (((UIButton*)sender).tag)
{
case 100001:
NSLog(@"Button 1 was pressed");
//some code
break;
case 100002:
NSLog(@"Button 2 was pressed");
//some code
break;
}
}
-(IBAction)buttonPressed2:(id)sender{
NSLog(@"I was pressed2");
buttonPressed2 = ((UIButton *)sender).tag;
DatePickerViewController2 *datePickerViewController2 = [[DatePickerViewController2 alloc] initWithNibName:@"DatePickerViewController2" bundle:nil];
datePickerViewController2.delegate = self;
[self presentModalViewController:datePickerViewController2 animated:YES];
[datePickerViewController2 release];
switch (((UIButton*)sender).tag)
{
case 100003:
NSLog(@"Button 3 was pressed");
//some code
break;
}
}
-(void)viewDidLoad{
[super viewDidLoad];
self.button.tag = 100001;
self.button2.tag = 100002;
self.button3.tag = 100003;
buttonPressed = -1;
buttonPressed2 = -1;
}
-(void)datePickerViewController:(DatePickerViewController *)controller didChooseDate:(NSString *)chosenDate{
NSLog(@"Chosen Date as String: %@", chosenDate );
if (buttonPressed == -1)
return;
UIButton *buttonToSet = (UIButton*)[self.view viewWithTag:buttonPressed];
buttonPressed = -1;
[buttonToSet setTitle: chosenDate forState: UIControlStateNormal];
[self dismissModalViewControllerAnimated:YES];
}
-(void)datePickerViewController2:(DatePickerViewController2 *)controller didChooseDate:(NSString *)chosenDate{
NSLog(@"Chosen Date as String: %@", chosenDate );
if (buttonPressed2 == -1)
return;
UIButton *buttonToSet = (UIButton*)[self.view viewWithTag:buttonPressed2];
buttonPressed2 = -1;
[buttonToSet setTitle: chosenDate forState: UIControlStateNormal];
[self dismissModalViewControllerAnimated:YES];
}
/*
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
*/
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[button3 release];
[button2 release];
[button release];
[super dealloc];
}
@end
答案 0 :(得分：0)
使用两个按钮的标签并相应地检查条件......
答案 1 :(得分：0)
您好，您可以在按钮上设置属性"tag"以识别它
取消注释
- (void)viewDidLoad {
[super viewDidLoad];
}
输入：
- (void)viewDidLoad {
[super viewDidLoad];
self.button.tag = 100001;
self.button2.tag = 100002;
}
然后
转入 DatePickerModalExampleViewController.h
(IBAction)buttonPressed 到 (IBAction)buttonPressed:(id)sender;
然后上交 DatePickerModalExampleViewController.m
-(IBAction)buttonPressed 至 -(IBAction)buttonPressed:(id)sender
并在 DatePickerModalExampleViewController.m 中，此方法可能是这样的：
-(IBAction)buttonPressed:(id)sender
{
switch(((UIButton*)sender).tag)
{
case 100001
NSLog(@"Button 1 was pressed");
DatePickerViewController *datePickerViewController =[DatePickerViewController alloc] initWithNibName:@"DatePickerViewController" bundle:nil];
datePickerViewController.delegate = self;
[self presentModalViewController:datePickerViewController animated:YES];
[datePickerViewController release];
break;
case 100002 :
NSLog(@"Button 2 was pressed");
// some code
break;
}
}
当您使用界面构建器时，我不是它的朋友，但您必须重新链接您的操作 我正在从我的PC上写，所以没有xcode，一些代码可能包含语法错误。但这是主要的想法。