大家好
我附上了以下代码。启动后，视图控制器显示 中心有一个标志，底部有四个主要用户按钮。我试着去 如果内部第一个按钮被触及（调用列表）， 徽标淡出，中心圆圈显示的名称（列表） 第一个按钮和周围显示按钮与不同的子菜单 点，同时4个主要（初始）按钮褪色并且是 只见最小（低Alpha）。我想实现那个，如果 褪色（半可见）主按钮再次触摸初始视图是 恢复徽标，只有主要的四个菜单按钮。意思，首先 触摸显示子菜单及其动画，第二次单击返回 初步观点。再次单击再次显示子菜单，依此类推。我怎么能够 那样做？
感谢Dnai
//
// ViewController.h
// NanCom1
//
// Created by Daniel Habshush on 8/13/15.
// Copyright © 2015 Daniel Habshush. All rights reserved.
//
#import <UIKit/UIKit.h>
@interface ViewController : UIViewController
@property (nonatomic, retain) IBOutlet UIImageView* logo;
@property (nonatomic, retain) IBOutlet UIButton* button1;
@property (nonatomic, retain) IBOutlet UIButton* button2;
@property (nonatomic, retain) IBOutlet UIButton* button3;
@property (nonatomic, retain) IBOutlet UIButton* button4;
@property (nonatomic, retain) IBOutlet UIButton* listMain;
@property (nonatomic, retain) IBOutlet UIButton* shoppingList;
@property (nonatomic, retain) IBOutlet UIButton* todoList;
@end
//
// ViewController.m
// NanCom1
//
// Created by Daniel Habshush on 8/13/15.
// Copyright © 2015 Daniel Habshush. All rights reserved.
//
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
{
UIDynamicAnimator* _animator;
UIGravityBehavior* _gravity;
UICollisionBehavior* _collision;
}
@synthesize logo, button1, button2, button3, button4, listMain, todoList, shoppingList;
- (void)viewDidLoad {
[super viewDidLoad];
logo = [[UIImageView alloc] init];
UIImage *logoPic = [UIImage imageNamed:@"Logo3.png"];
logo.image=logoPic;
logo.frame = CGRectMake(100, 200, 175, 175);
[logo setAlpha:0];
[self.view addSubview:logo];
[UIImageView beginAnimations:nil context:nil];
[UIImageView setAnimationDuration:3.0];
[UIImageView setAnimationDelay:0.5];
[UIImageView setAnimationCurve:UIViewAnimationCurveEaseIn ];
self.logo.alpha = 1.0;
[UIImageView commitAnimations];
button1 = [[UIButton alloc] init];
[button1 setFrame:CGRectMake(5, 2, 90, 90)];
[button1 setIsAccessibilityElement:YES];
button1.backgroundColor = [UIColor clearColor];
[button1 setBackgroundImage:[UIImage imageNamed:@"Circle.png"] forState:UIControlStateNormal];
[button1 setTitle:@"Lists" forState:UIControlStateNormal];
[button1.titleLabel setFont:[UIFont fontWithName:@"Avenir" size:13]];
[button1 addTarget:self action:@selector(pressed:) forControlEvents:UIControlEventTouchUpInside];
[button1 setEnabled:YES];
[self.view addSubview:button1];
button2 = [[UIButton alloc] init];
[button2 setFrame:CGRectMake(85, 2, 90, 90)];
[button2 setIsAccessibilityElement:YES];
button2.backgroundColor = [UIColor clearColor];
[button2 setBackgroundImage:[UIImage imageNamed:@"Circle.png"] forState:UIControlStateNormal];
[button2 setTitle:@"Cirlce" forState:UIControlStateNormal];
[button2.titleLabel setFont:[UIFont fontWithName:@"Avenir" size:13]];
[button2 setEnabled:YES];
[button2 addTarget:self action:@selector(pressed2:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:button2];
button3 = [[UIButton alloc] init];
[button3 setFrame:CGRectMake(160, 2, 90, 90)];
button3.backgroundColor = [UIColor clearColor];
[button3 setBackgroundImage:[UIImage imageNamed:@"Circle.png"] forState:UIControlStateNormal];
[button3 setTitle:@"Location" forState:UIControlStateNormal];
[button3.titleLabel setFont:[UIFont fontWithName:@"Avenir" size:13]];
[button3 setEnabled:YES];
[button2 addTarget:self action:@selector(pressed3:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:button3];
button4 = [[UIButton alloc] init];
[button4 setFrame:CGRectMake(250, 2, 90, 90)];
button4.backgroundColor = [UIColor clearColor];
[button4 setTitle:@"Menu" forState:UIControlStateNormal];
[button4.titleLabel setFont:[UIFont fontWithName:@"Avenir" size:13]];
[button4 setBackgroundImage:[UIImage imageNamed:@"Circle.png"] forState:UIControlStateNormal];
[button4 setEnabled:YES];
[button2 addTarget:self action:@selector(pressed4:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:button4];
_animator = [[UIDynamicAnimator alloc] initWithReferenceView:self.view];
_gravity = [[UIGravityBehavior alloc] initWithItems:@[button1, button2, button3, button4]];
[_animator addBehavior:_gravity];
_collision = [[UICollisionBehavior alloc]
initWithItems:@[button1, button2, button3, button4]];
_collision.translatesReferenceBoundsIntoBoundary = YES;
[_animator addBehavior:_collision];
UIDynamicItemBehavior* itemBehaviour4 = [[UIDynamicItemBehavior alloc] initWithItems:@[button4]];
itemBehaviour4.elasticity = 0.4;
itemBehaviour4.resistance = 0.65;
[_animator addBehavior:itemBehaviour4];
UIDynamicItemBehavior* itemBehaviour3 = [[UIDynamicItemBehavior alloc] initWithItems:@[button3]];
itemBehaviour3.elasticity = 0.45;
itemBehaviour3.resistance = 0.5;
[_animator addBehavior:itemBehaviour3];
UIDynamicItemBehavior* itemBehaviour2 = [[UIDynamicItemBehavior alloc] initWithItems:@[button2]];
itemBehaviour2.elasticity = 0.5;
itemBehaviour2.resistance = 0.3;
[_animator addBehavior:itemBehaviour2];
UIDynamicItemBehavior* itemBehaviour1 = [[UIDynamicItemBehavior alloc] initWithItems:@[button1]];
itemBehaviour1.elasticity = 0.37;
itemBehaviour1.resistance = 0.2;
[_animator addBehavior:itemBehaviour1];
}
- (void)pressed:(UIButton*)button1 {
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:2];
[UIView setAnimationDelay:0];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn ];
self.button1.alpha = 0.3;
self.button2.alpha = 0.3;
self.button3.alpha = 0.3;
self.button4.alpha = 0.3;
[UIView commitAnimations];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1];
[UIView setAnimationDelay:0];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn ];
self.logo.alpha = 0;
[UIView commitAnimations];
listMain = [[UIButton alloc] init];
[listMain setFrame:CGRectMake(100, 200, 175, 175)];
listMain.backgroundColor = [UIColor clearColor];
[listMain setBackgroundImage:[UIImage imageNamed:@"Circle.png"] forState:UIControlStateNormal];
[listMain setTitle:@"Lists" forState:UIControlStateNormal];
[listMain.titleLabel setFont:[UIFont fontWithName:@"Avenir" size:35]];
[listMain setAlpha:0];
[self.view addSubview:listMain];
todoList = [[UIButton alloc] init];
[todoList setFrame:CGRectMake(60, 145, 75, 75)];
todoList.backgroundColor = [UIColor clearColor];
[todoList setBackgroundImage:[UIImage imageNamed:@"Circle.png"] forState:UIControlStateNormal];
[todoList setTitle:@"ToDo" forState:UIControlStateNormal];
[todoList.titleLabel setFont:[UIFont fontWithName:@"Avenir" size:13]];
[todoList setAlpha:0];
[self.view addSubview:todoList];
shoppingList = [[UIButton alloc] init];
[shoppingList setFrame:CGRectMake(10, 245, 75, 75)];
shoppingList.backgroundColor = [UIColor clearColor];
[shoppingList setBackgroundImage:[UIImage imageNamed:@"Circle.png"] forState:UIControlStateNormal];
[shoppingList setTitle:@"Shopping" forState:UIControlStateNormal];
[shoppingList.titleLabel setFont:[UIFont fontWithName:@"Avenir" size:13]];
[shoppingList setAlpha:0];
[self.view addSubview:shoppingList];
[UIView commitAnimations];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1];
[UIView setAnimationDelay:0];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn ];
self.listMain.alpha = 1;
self.todoList.alpha = 1;
self.shoppingList.alpha = 1;
[UIView commitAnimations];
}
- (void)pressed2:(UIButton*)button2 {
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1];
[UIView setAnimationDelay:0];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn ];
self.button2.alpha = 1;
self.button1.alpha = 1;
self.button3.alpha = 1;
self.button4.alpha = 1;
self.listMain.alpha = 0;
self.todoList.alpha = 0;
self.shoppingList.alpha = 0;
[UIView commitAnimations];
}
- (void)pressed3:(UIButton*)button3 {
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.5];
[UIView setAnimationDelay:0];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn ];
self.listMain.alpha = 0;
self.todoList.alpha = 0;
self.shoppingList.alpha = 0;
self.logo.alpha = 1;
[UIView commitAnimations];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1];
[UIView setAnimationDelay:0];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn ];
self.button2.alpha = 1;
self.button1.alpha = 1;
self.button3.alpha = 1;
self.button4.alpha = 1;
[UIView commitAnimations];
}
- (void)pressed4:(UIButton*)button4 {
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1];
[UIView setAnimationDelay:0];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn ];
self.button2.alpha = 1;
[UIView commitAnimations];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1];
[UIView setAnimationDelay:0];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn ];
self.button1.alpha = 1;
[UIView commitAnimations];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1];
[UIView setAnimationDelay:0];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn ];
self.button3.alpha = 1;
[UIView commitAnimations];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1];
[UIView setAnimationDelay:0];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn ];
self.button4.alpha = 1;
[UIView commitAnimations];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end