在cocos2d库能使用UIPickerView

#import 

#import 

#import "cocos2d.h"



@interface AppDelegate {

    UIWindow *window;

    NSArray *pickerValues;

}

@property (nonatomic, retain) UIWindow window;

@property (nonatomic, retain) NSArray *pickerValues;

@end





@implementation AppDelegate

@synthesize window, pickerValues;



-(void)applicationDidFinishLaunchingUIApplication *)application {



    // Create Window

    window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    [window setUserInteractionEnabled:YES];

    [window setMultipleTouchEnabled:YES];



    // Set up Director and attach to window

    [[Director sharedDirector] attachInWindow:window];

    [[Director sharedDirector] setLandscape:YES];

    [[Director sharedDirector] runWithScene:[MyScene node]];



    // Create one large view and rotate the coordinates to landscape

    UIView *parentView = [[UIView alloc] initWithFrame:CGRectMake(0.0f,0.0f,480.0f, 320.0f)];

    parentView.transform = CGAffineTransformIdentity;

    parentView.transform = CGAffineTransformMakeRotation(degreesToRadian(90));

    parentView.bounds = CGRectMake(0.0f, 0.0f, 480.0f, 320.0f);



    // Initialize picker and its data source

    pickerValues = [[NSArray alloc] initWithObjects"0",@"1",@"2",@"3",@"4",@"5",@"6",@"7",@"8",@"9",nil];

    UIPickerView *pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0.0f, 195.0f, 320.0f, 125.0f)];

    [pickerView setDelegate:self];



    // Attach picker to parent view and parent view to window

    [parentView addSubview:pickerView];

    [window addSubview:parentView];     

    [window makeKeyAndVisible];

}



- (void) dealloc {

    [window release];

    [pickerValues release];

    [super dealloc];

}



// ====================

// UIPicker Callbacks

// ====================



// Fire when new picker values are selected

- (void)pickerViewUIPickerView *)thePickerView didSelectRowNSInteger)row inComponentNSInteger)component {

    NSString *numberSequence = [NSString stringWithFormat"Sequence: %@%@%@",

                                                        [pickerValues objectAtIndex:[thePickerView selectedRowInComponent:0]],

                                                        [pickerValues objectAtIndex:[thePickerView selectedRowInComponent:1]],

                                                        [pickerValues objectAtIndex:[thePickerView selectedRowInComponent:2]]];



    NSLog(numberSequence);

}





// Number of picker wheels in the picker

- (NSInteger)numberOfComponentsInPickerViewUIPickerView *)pickerView                                                  {

    return 3;

}



// Number of items in each picker wheel

- (NSInteger)pickerViewUIPickerView *)pickerView numberOfRowsInComponentNSInteger)component {

    return [pickerValues count];

}





// Title for Row #

- (NSString *)pickerViewUIPickerView *)pickerView titleForRowNSInteger)row forComponentNSInteger)component {

    return [pickerValues objectAtIndex:row];

}





// Row height in pixels

- (CGFloat)pickerView:(UIPickerView *)pickerView rowHeightForComponent:(NSInteger)component {

    return 40.0;

}



// Column width in pixels

- (CGFloat)pickerView:(UIPickerView *)pickerView widthForComponent:(NSInteger)component {

    return 90.0f;

}

// ====================



@end