[IOS] extended quadcurvemenu to implement pop-up menus in eight directions

Recently I have been reading some open-source projects. One of the pop-up menu quadcurvemenu seems pretty good. Unfortunately, you can only bring up the menu in the upper right corner, so I modified it and implemented the pop-up menu in eight directions, I am sending it to you for criticism and correction.

////  QuadCurveMenu.h//  AwesomeMenu////  Created by Levey on 11/30/11.//  Copyright (c) 2011 Lunaapp.com. All rights reserved.//#import <UIKit/UIKit.h>#import "QuadCurveMenuItem.h"@protocol QuadCurveMenuDelegate;//defult type is like this/* *       O *           O *              O  *                O    *       0         O      */typedef enum{    QuadCurveMenuTypeUpAndRight = 0,                     QuadCurveMenuTypeUpAndLeft,    QuadCurveMenuTypeDownAndRight,    QuadCurveMenuTypeDownAndLeft,    QuadCurveMenuTypeUp,    QuadCurveMenuTypeDown,    QuadCurveMenuTypeLeft,    QuadCurveMenuTypeRight,    QuadCurveMenuTypeDefault = QuadCurveMenuTypeUpAndRight} QuadCureMenuType;@interface QuadCurveMenu : UIView <QuadCurveMenuItemDelegate>{    NSArray *_menusArray;    int _flag;    NSTimer *_timer;    QuadCurveMenuItem *_addButton;    QuadCureMenuType _type;    id<QuadCurveMenuDelegate> _delegate;        CGPoint _startPoint;}@property (nonatomic, copy) NSArray *menusArray;@property (nonatomic) QuadCureMenuType type;@property (nonatomic, getter = isExpanding)     BOOL expanding;@property (nonatomic, assign) id<QuadCurveMenuDelegate> delegate;- (id)initWithFrame:(CGRect)frame menus:(NSArray *)aMenusArray;- (void) setType:(QuadCureMenuType)type;- (void) setStartPoint:(CGPoint) startpoint;@end@protocol QuadCurveMenuDelegate <NSObject>- (void)quadCurveMenu:(QuadCurveMenu *)menu didSelectIndex:(NSInteger)idx;@end

////  QuadCurveMenu.m//  AwesomeMenu////  Created by Levey on 11/30/11.//  Copyright (c) 2011 Lunaapp.com. All rights reserved.//#import "QuadCurveMenu.h"#import <QuartzCore/QuartzCore.h>#define NEARRADIUS 130.0f#define ENDRADIUS 140.0f#define FARRADIUS 160.0f#define BETWEENADIUS 50.0f#define STARTPOINT CGPointMake(100, 130)#define TIMEOFFSET 0.05f@interface QuadCurveMenu ()- (void)_expand;- (void)_close;- (CAAnimationGroup *)_blowupAnimationAtPoint:(CGPoint)p;- (CAAnimationGroup *)_shrinkAnimationAtPoint:(CGPoint)p;@end@implementation QuadCurveMenu@synthesize expanding = _expanding;@synthesize delegate = _delegate;@synthesize menusArray = _menusArray;@synthesize type = _type;#pragma mark - initialization & cleaning up- (id)initWithFrame:(CGRect)frame menus:(NSArray *)aMenusArray{    self = [super initWithFrame:frame];    if (self) {        self.backgroundColor = [UIColor clearColor];                _startPoint = STARTPOINT;        _menusArray = [aMenusArray copy];                // add the menu buttons        int count = [_menusArray count];        for (int i = 0; i < count; i ++)        {            QuadCurveMenuItem *item = [_menusArray objectAtIndex:i];            item.tag = 1000 + i;            item.startPoint = STARTPOINT;            item.endPoint = CGPointMake(_startPoint.x + ENDRADIUS * sinf(i * M_PI_2 / (count - 1)), _startPoint.y - ENDRADIUS * cosf(i * M_PI_2 / (count - 1)));            item.nearPoint = CGPointMake(_startPoint.x + NEARRADIUS * sinf(i * M_PI_2 / (count - 1)), _startPoint.y - NEARRADIUS * cosf(i * M_PI_2 / (count - 1)));            item.farPoint = CGPointMake(_startPoint.x + FARRADIUS * sinf(i * M_PI_2 / (count - 1)), _startPoint.y - FARRADIUS * cosf(i * M_PI_2 / (count - 1)));            item.center = item.startPoint;            item.delegate = self;            [self addSubview:item];        }                // add the "Add" Button.        _addButton = [[QuadCurveMenuItem alloc] initWithImage:[UIImage imageNamed:@"story-add-button.png"]                                       highlightedImage:[UIImage imageNamed:@"story-add-button-pressed.png"]                                            ContentImage:[UIImage imageNamed:@"story-add-plus.png"]                                 highlightedContentImage:[UIImage imageNamed:@"story-add-plus-pressed.png"]];        _addButton.delegate = self;        _addButton.center = _startPoint;        [self addSubview:_addButton];    }    return self;}- (void) setType:(QuadCureMenuType)type{    _type = type;    int dx =1;     int dy =1;    BOOL isTwoDirctions = YES;      if (_menusArray !=nil) {          switch (type) {            case QuadCurveMenuTypeUpAndRight:                break;            case QuadCurveMenuTypeUpAndLeft:                dx = -1;                break;            case QuadCurveMenuTypeDownAndRight:                dy = -1;                break;            case QuadCurveMenuTypeDownAndLeft:                dy = dx = -1;                break;            case QuadCurveMenuTypeUp:                isTwoDirctions = NO; dx = 0; dy = -1;                break;            case QuadCurveMenuTypeDown:                isTwoDirctions = NO; dx = 0; dy = 1;                break;            case QuadCurveMenuTypeLeft:                isTwoDirctions = NO; dx = -1; dy = 0;                break;            case QuadCurveMenuTypeRight:                isTwoDirctions = NO; dx = 1; dy = 0;            default:                break;        }                int count = [_menusArray count];        for (int i = 0; i < count; i ++)        {            QuadCurveMenuItem *item = [_menusArray objectAtIndex:i];            item.startPoint = _startPoint;            if (isTwoDirctions) {                item.endPoint = CGPointMake(_startPoint.x + dx * ENDRADIUS * sinf(i * M_PI_2 / (count - 1)), _startPoint.y -dy * ENDRADIUS * cosf(i * M_PI_2 / (count - 1)));                item.nearPoint = CGPointMake(_startPoint.x +dx *  NEARRADIUS * sinf(i * M_PI_2 / (count - 1)), _startPoint.y -dy * NEARRADIUS * cosf(i * M_PI_2 / (count - 1)));                item.farPoint = CGPointMake(_startPoint.x + dx * FARRADIUS * sinf(i * M_PI_2 / (count - 1)), _startPoint.y -dy *  FARRADIUS * cosf(i * M_PI_2 / (count - 1)));            }else            {                item.endPoint = CGPointMake(_startPoint.x + dx * i * BETWEENADIUS , _startPoint.y + dy * i * BETWEENADIUS);                item.nearPoint = CGPointMake(_startPoint.x +dx * i * (BETWEENADIUS - 15), _startPoint.y + dy * i * (BETWEENADIUS - 15));                item.farPoint = CGPointMake(_startPoint.x + dx * i * (BETWEENADIUS + 20), _startPoint.y + dy * i * (BETWEENADIUS + 20));                        }            item.center = item.startPoint;                   }    }}- (void) setStartPoint:(CGPoint) startpoint{    _startPoint = startpoint;     _addButton.center = _startPoint;    [self setType: _type];};- (void)dealloc{    [_addButton release];    [_menusArray release];    [super dealloc];}                               #pragma mark - UIView's methods- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event{    // if the menu state is expanding, everywhere can be touch    // otherwise, only the add button are can be touch    if (YES == _expanding)     {        return YES;    }    else    {        return CGRectContainsPoint(_addButton.frame, point);    }}- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{    self.expanding = !self.isExpanding;}#pragma mark - QuadCurveMenuItem delegates- (void)quadCurveMenuItemTouchesBegan:(QuadCurveMenuItem *)item{    if (item == _addButton)     {        self.expanding = !self.isExpanding;    }}- (void)quadCurveMenuItemTouchesEnd:(QuadCurveMenuItem *)item{    // exclude the "add" button    if (item == _addButton)     {        return;    }    // blowup the selected menu button    CAAnimationGroup *blowup = [self _blowupAnimationAtPoint:item.center];    [item.layer addAnimation:blowup forKey:@"blowup"];    item.center = item.startPoint;        // shrink other menu buttons    for (int i = 0; i < [_menusArray count]; i ++)    {        QuadCurveMenuItem *otherItem = [_menusArray objectAtIndex:i];        CAAnimationGroup *shrink = [self _shrinkAnimationAtPoint:otherItem.center];        if (otherItem.tag == item.tag) {            continue;        }        [otherItem.layer addAnimation:shrink forKey:@"shrink"];        otherItem.center = otherItem.startPoint;    }    _expanding = NO;        // rotate "add" button    float angle = self.isExpanding ? -M_PI_4 : 0.0f;    [UIView animateWithDuration:0.2f animations:^{        _addButton.transform = CGAffineTransformMakeRotation(angle);    }];        if ([_delegate respondsToSelector:@selector(quadCurveMenu:didSelectIndex:)])    {        [_delegate quadCurveMenu:self didSelectIndex:item.tag - 1000];    }}#pragma mark - instant methods- (void)setMenusArray:(NSArray *)aMenusArray{    if (aMenusArray == _menusArray)    {        return;    }    [_menusArray release];    _menusArray = [aMenusArray copy];            // clean subviews    for (UIView *v in self.subviews)     {        if (v.tag >= 1000)         {            [v removeFromSuperview];        }    }        // add the menu buttons    int count = [_menusArray count];    for (int i = 0; i < count; i ++)    {        QuadCurveMenuItem *item = [_menusArray objectAtIndex:i];        item.tag = 1000 + i;        item.startPoint = _startPoint;        item.endPoint = CGPointMake(_startPoint.x + ENDRADIUS * sinf(i * M_PI_2 / (count - 1)), _startPoint.y - ENDRADIUS * cosf(i * M_PI_2 / (count - 1)));        item.nearPoint = CGPointMake(_startPoint.x + NEARRADIUS * sinf(i * M_PI_2 / (count - 1)), _startPoint.y - NEARRADIUS * cosf(i * M_PI_2 / (count - 1)));        item.farPoint = CGPointMake(_startPoint.x + FARRADIUS * sinf(i * M_PI_2 / (count - 1)), _startPoint.y - FARRADIUS * cosf(i * M_PI_2 / (count - 1)));        item.center = item.startPoint;        item.delegate = self;        [self addSubview:item];    }}- (BOOL)isExpanding{    return _expanding;}- (void)setExpanding:(BOOL)expanding{    _expanding = expanding;            // rotate add button    float angle = self.isExpanding ? -M_PI_4 : 0.0f;    [UIView animateWithDuration:0.2f animations:^{        _addButton.transform = CGAffineTransformMakeRotation(angle);    }];        // expand or close animation    if (!_timer)     {        _flag = self.isExpanding ? 0 : 5;        SEL selector = self.isExpanding ? @selector(_expand) : @selector(_close);        _timer = [[NSTimer scheduledTimerWithTimeInterval:TIMEOFFSET target:self selector:selector userInfo:nil repeats:YES] retain];    }}#pragma mark - private methods- (void)_expand{    if (_flag == 6)    {        [_timer invalidate];        [_timer release];        _timer = nil;        return;    }        int tag = 1000 + _flag;    QuadCurveMenuItem *item = (QuadCurveMenuItem *)[self viewWithTag:tag];        CAKeyframeAnimation *rotateAnimation = [CAKeyframeAnimation animationWithKeyPath:@"transform.rotation.z"];    rotateAnimation.values = [NSArray arrayWithObjects:[NSNumber numberWithFloat:M_PI],[NSNumber numberWithFloat:0.0f], nil];    rotateAnimation.duration = 0.5f;    rotateAnimation.keyTimes = [NSArray arrayWithObjects:                                [NSNumber numberWithFloat:.3],                                 [NSNumber numberWithFloat:.4], nil];         CAKeyframeAnimation *positionAnimation = [CAKeyframeAnimation animationWithKeyPath:@"position"];    positionAnimation.duration = 0.5f;    CGMutablePathRef path = CGPathCreateMutable();    CGPathMoveToPoint(path, NULL, item.startPoint.x, item.startPoint.y);    CGPathAddLineToPoint(path, NULL, item.farPoint.x, item.farPoint.y);    CGPathAddLineToPoint(path, NULL, item.nearPoint.x, item.nearPoint.y);     CGPathAddLineToPoint(path, NULL, item.endPoint.x, item.endPoint.y);     positionAnimation.path = path;    CGPathRelease(path);        CAAnimationGroup *animationgroup = [CAAnimationGroup animation];    animationgroup.animations = [NSArray arrayWithObjects:positionAnimation, rotateAnimation, nil];    animationgroup.duration = 0.5f;    animationgroup.fillMode = kCAFillModeForwards;    animationgroup.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];    [item.layer addAnimation:animationgroup forKey:@"Expand"];    item.center = item.endPoint;        _flag ++;    }- (void)_close{    if (_flag == -1)    {        [_timer invalidate];        [_timer release];        _timer = nil;        return;    }        int tag = 1000 + _flag;     QuadCurveMenuItem *item = (QuadCurveMenuItem *)[self viewWithTag:tag];        CAKeyframeAnimation *rotateAnimation = [CAKeyframeAnimation animationWithKeyPath:@"transform.rotation.z"];    rotateAnimation.values = [NSArray arrayWithObjects:[NSNumber numberWithFloat:0.0f],[NSNumber numberWithFloat:M_PI * 2],[NSNumber numberWithFloat:0.0f], nil];    rotateAnimation.duration = 0.5f;    rotateAnimation.keyTimes = [NSArray arrayWithObjects:                                [NSNumber numberWithFloat:.0],                                 [NSNumber numberWithFloat:.4],                                [NSNumber numberWithFloat:.5], nil];             CAKeyframeAnimation *positionAnimation = [CAKeyframeAnimation animationWithKeyPath:@"position"];    positionAnimation.duration = 0.5f;    CGMutablePathRef path = CGPathCreateMutable();    CGPathMoveToPoint(path, NULL, item.endPoint.x, item.endPoint.y);    CGPathAddLineToPoint(path, NULL, item.farPoint.x, item.farPoint.y);    CGPathAddLineToPoint(path, NULL, item.startPoint.x, item.startPoint.y);     positionAnimation.path = path;    CGPathRelease(path);        CAAnimationGroup *animationgroup = [CAAnimationGroup animation];    animationgroup.animations = [NSArray arrayWithObjects:positionAnimation, rotateAnimation, nil];    animationgroup.duration = 0.5f;    animationgroup.fillMode = kCAFillModeForwards;    animationgroup.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];    [item.layer addAnimation:animationgroup forKey:@"Close"];    item.center = item.startPoint;    _flag --;}- (CAAnimationGroup *)_blowupAnimationAtPoint:(CGPoint)p{    CAKeyframeAnimation *positionAnimation = [CAKeyframeAnimation animationWithKeyPath:@"position"];    positionAnimation.values = [NSArray arrayWithObjects:[NSValue valueWithCGPoint:p], nil];    positionAnimation.keyTimes = [NSArray arrayWithObjects: [NSNumber numberWithFloat:.3], nil];         CABasicAnimation *scaleAnimation = [CABasicAnimation animationWithKeyPath:@"transform"];    scaleAnimation.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeScale(3, 3, 1)];        CABasicAnimation *opacityAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];    opacityAnimation.toValue  = [NSNumber numberWithFloat:0.0f];        CAAnimationGroup *animationgroup = [CAAnimationGroup animation];    animationgroup.animations = [NSArray arrayWithObjects:positionAnimation, scaleAnimation, opacityAnimation, nil];    animationgroup.duration = 0.3f;    animationgroup.fillMode = kCAFillModeForwards;    return animationgroup;}- (CAAnimationGroup *)_shrinkAnimationAtPoint:(CGPoint)p{    CAKeyframeAnimation *positionAnimation = [CAKeyframeAnimation animationWithKeyPath:@"position"];    positionAnimation.values = [NSArray arrayWithObjects:[NSValue valueWithCGPoint:p], nil];    positionAnimation.keyTimes = [NSArray arrayWithObjects: [NSNumber numberWithFloat:.3], nil];         CABasicAnimation *scaleAnimation = [CABasicAnimation animationWithKeyPath:@"transform"];    scaleAnimation.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeScale(.01, .01, 1)];        CABasicAnimation *opacityAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];    opacityAnimation.toValue  = [NSNumber numberWithFloat:0.0f];        CAAnimationGroup *animationgroup = [CAAnimationGroup animation];    animationgroup.animations = [NSArray arrayWithObjects:positionAnimation, scaleAnimation, opacityAnimation, nil];    animationgroup.duration = 0.3f;    animationgroup.fillMode = kCAFillModeForwards;        return animationgroup;}@end

Run:

Demo: http://download.csdn.net/detail/toss156/4164935