很多应用都有带弹跳动画发布界面，这里用一个 UIViewController 实现这种效果，外界只要 modal出不带动画这个控制器就可以实现
#import "BSPublishVC.h"
#import "BSVerticalButton.h"
#import <POP.h>
@interface BSPublishVC ()
@end
@implementation BSPublishVC
- (void)viewDidLoad {
[super viewDidLoad];
//背景图征
UIImageView *imageView = [[UIImageView alloc]init];
imageView.frame = [UIScreen mainScreen].bounds;
// shareBottomBackground
imageView.image = [UIImage imageNamed:@"shareBottomBackground"];
imageView.contentMode = UIViewContentModeScaleToFill;
[self.view addSubview:imageView];
//退出按钮
UIButton *cancelButton = [UIButton buttonWithType:UIButtonTypeCustom];
[cancelButton setTitle:@"退出" forState:UIControlStateNormal];
[cancelButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[cancelButton setBackgroundImage:[UIImage imageNamed:@"FollowBtnBg"] forState:UIControlStateNormal];
[cancelButton setBackgroundImage:[UIImage imageNamed:@"FollowBtnClickBg"] forState:UIControlStateHighlighted];
CGRect frame = cancelButton.frame;
frame.size = CGSizeMake(200, 30);
frame.origin.y = [UIScreen mainScreen].bounds.size.height * 0.8;
cancelButton.frame = frame;
CGPoint point = cancelButton.center;
point.x = [UIScreen mainScreen].bounds.size.width * 0.5;
cancelButton.center = point;
[cancelButton addTarget:self action:@selector(cancelButtonClick) forControlEvents:UIControlEventTouchUpInside];
[imageView addSubview:cancelButton];
//让一开始动画时不让控制的view失去交互，那这时在做动时点击按钮等都不会起作用
self.view.userInteractionEnabled = NO;
NSArray *buttonImages = @[@"publish-video",@"publish-picture",@"publish-text",@"publish-audio",@"publish-review",@"publish-offline"];
NSArray *buttonTitles = @[@"发视频",@"发图片",@"发段子",@"发声音",@"审贴子",@"离线下载"];
CGFloat button_w = 72;
CGFloat button_h = button_w + 30;
NSInteger maxLoc = 3; //最多列数
//按钮弹跳动画停止后的起始 y 值
CGFloat buttonEnd_y = ([[UIScreen mainScreen] bounds].size.height - button_h * 2) / 2;
//最开始在屏幕外上方的的起始 y 值
CGFloat buttonBegin_y = buttonEnd_y - [[UIScreen mainScreen] bounds].size.height;
//按钮的起始间隙值
CGFloat buttonStartMargin = 20;
//中间的一个按钮相对于两边按钮的间隙
CGFloat buttonMargin = ([[UIScreen mainScreen] bounds].size.width - buttonStartMargin * 2 - button_w * maxLoc) / (maxLoc - 1);
for (NSInteger i = 0; i < buttonImages.count; ++i) {
BSVerticalButton *button = [[BSVerticalButton alloc]init];
button.tag = i;
[self.view addSubview:button];
[button addTarget:self action:@selector(buttonClick:) forControlEvents:UIControlEventTouchUpInside];
[button setImage:[UIImage imageNamed:buttonImages[i]] forState:UIControlStateNormal];
[button setTitle:buttonTitles[i] forState:UIControlStateNormal];
[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
button.titleLabel.font = [UIFont systemFontOfSize:14];
NSInteger loc = i % maxLoc; //例号
NSInteger row = i / maxLoc; //行号
CGFloat button_x = buttonStartMargin + loc * (button_w + buttonMargin);
CGFloat buttonBginAnimation_y = buttonBegin_y + (button_h * row); //弹跳前的 y 值
CGFloat buttonEndAnimation_y = buttonEnd_y + (button_h * row); //弹跳后的 y 值
//创建pop弹簧动画对象
POPSpringAnimation *animation = [POPSpringAnimation animationWithPropertyNamed:kPOPViewFrame];
animation.beginTime = CACurrentMediaTime() + i * 0.1; //动画开始时间
animation.springBounciness = 10; //弹簧增强 0-20
animation.springSpeed = 8; //弹簧速度 0-20
animation.fromValue = [NSValue valueWithCGRect:CGRectMake(button_x, buttonBginAnimation_y, button_w, button_h)];
animation.toValue = [NSValue valueWithCGRect:CGRectMake(button_x, buttonEndAnimation_y, button_w, button_h)];
//中间的按钮添加动画
[button pop_addAnimation:animation forKey:nil];
}
UIImageView *topImageView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"app_slogan"]];
topImageView.center = CGPointMake([[UIScreen mainScreen] bounds].size.width * 0.5, [[UIScreen mainScreen] bounds].size.height * 0.2 - [[UIScreen mainScreen] bounds].size.height);
[self.view addSubview:topImageView];
//创建pop弹簧动画对象
POPSpringAnimation *animation = [POPSpringAnimation animationWithPropertyNamed:kPOPViewCenter];
animation.beginTime = CACurrentMediaTime() + buttonImages.count * 0.001; //动画开始时间
animation.springBounciness = 10; //弹簧增强 0-20
animation.springSpeed = 10; //弹簧速度 0-20
CGFloat center_x = [[UIScreen mainScreen] bounds].size.width * 0.5;
CGFloat endCenter_y = [[UIScreen mainScreen] bounds].size.height * 0.2;
CGFloat beginCenter_y = endCenter_y - [[UIScreen mainScreen] bounds].size.height;
animation.fromValue = [NSValue valueWithCGPoint:CGPointMake(center_x, beginCenter_y)];
animation.toValue = [NSValue valueWithCGPoint:CGPointMake(center_x, endCenter_y)];
animation.completionBlock = ^(POPAnimation *anim, BOOL finished){
NSLog(@"-------这里可以写动画结束后所要执行的代码...");
self.view.userInteractionEnabled = YES; //动画完时让view开启交互
};
//给顶部的图片添加动画
[topImageView pop_addAnimation:animation forKey:nil];
}
- (void)buttonClick:(UIButton *)button{
[self cancelButtonClick];
[self animationWithBlock:^{
switch (button.tag) {
case 0:
NSLog(@"发视频");
break;
case 1:
NSLog(@"发图片");
break;
case 2:
NSLog(@"发段子");
break;
case 3:
NSLog(@"发声音");
break;
case 4:
NSLog(@"审贴子");
break;
case 5:
NSLog(@"离线下载");
break;
default:
break;
}
}];
}
// 退出发布界面的动画
- (void)animationWithBlock:(void (^) ())completionBlock{
//退出时也不让所有的按钮或view能点击
self.view.userInteractionEnabled = NO;
for (NSInteger i = 1; i < self.view.subviews.count; ++i) {
UIView *view = self.view.subviews[i];
//创建pop基本动画对象
POPBasicAnimation *animation = [POPBasicAnimation animationWithPropertyNamed:kPOPViewCenter];
// POPSpringAnimation *animation = [POPSpringAnimation animationWithPropertyNamed:kPOPViewCenter];
animation.beginTime = CACurrentMediaTime() + (i - 1) * 0.085; //动画开始时间
// 如果用这个基类 POPBasicAnimation 动画的执行节奏(一开始很慢, 后面很快)
animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];
CGPoint center = view.center;
CGRect frame = view.frame;
animation.toValue = [NSValue valueWithCGPoint:CGPointMake(center.x, frame.origin.y + SCREEN_H)];
if (i == self.view.subviews.count - 1) { //说明是最后一个 view在做动画,就让执行结束的 block
// 动画结束时调用的 block
animation.completionBlock = ^(POPAnimation *anim, BOOL finished){
NSLog(@"取消时 这里可以写动画结束后所要执行的代码...");
[self dismissViewControllerAnimated:NO completion:nil];
if (completionBlock) {
completionBlock();
}
// !completionBlock ? : completionBlock();
};
}
//给顶部的图片添加动画
[view pop_addAnimation:animation forKey:nil];
}
}
- (void)cancelButtonClick{
[self animationWithBlock:nil];
}
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
[self animationWithBlock:nil];
}
@end
BSVerticalButton.h 自定义的垂直排布按钮
#import "BSVerticalButton.h"
@implementation BSVerticalButton
- (instancetype)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
[self setupUI];
}
return self;
}
- (void)awakeFromNib{
[super awakeFromNib];
[self setupUI];
}
- (void)setupUI{
self.titleLabel.textAlignment = NSTextAlignmentCenter;
}
- (void)layoutSubviews{
[super layoutSubviews];
//按钮内部图片 frame
CGRect imageViewFrame = self.imageView.frame;
imageViewFrame.origin.x = 0;
imageViewFrame.origin.y = 0;
imageViewFrame.size.width = self.bounds.size.width;
imageViewFrame.size.height = self.bounds.size.width;
self.imageView.frame = imageViewFrame;
//按钮内部label frame
CGRect titleLabelFrame = self.titleLabel.frame;
titleLabelFrame.origin.x = 0;
titleLabelFrame.origin.y = self.imageView.frame.size.height + 10;
titleLabelFrame.size.width = self.bounds.size.width;
self.titleLabel.frame = titleLabelFrame;
//按钮自身大小
CGRect buttonBounds = self.bounds;
buttonBounds.size.width = self.imageView.frame.size.width;
buttonBounds.size.height = self.imageView.bounds.size.height + self.titleLabel.bounds.size.height + 10;
self.bounds = buttonBounds;
}
@end
