ios15 pop框架的使用

主要源码

//
//  TestPopVC.m
//  podDemos
//
//  Created by lujun on 2022/1/31.
//


#import "TestPopVC.h"
#import "BSVerticalButton.h"
#define BSScreenW [UIScreen mainScreen].bounds.size.width
#define BSScreenH [UIScreen mainScreen].bounds.size.height
#import <POP.h>
#import "UIView+Frame.h"
@interface TestPopVC ()
@property(nonatomic,weak)UIImageView *sloganView;
@end
@implementation TestPopVC

 - (void)viewDidLoad {
    [super viewDidLoad];
     UIImageView *ivView = [[UIImageView alloc]init];
     ivView.image = [UIImage imageNamed:@"shareBottomBackground"];
     ivView.frame = self.view.bounds;
     [self.view addSubview:ivView];
     
     
     UIButton *calBtn = [[UIButton alloc]init];
     
     [calBtn setImage:[UIImage imageNamed:@"shareButtonCancel"] forState:UIControlStateNormal];
     [calBtn setImage:[UIImage imageNamed:@"shareButtonCancelClick"] forState:UIControlStateHighlighted];
     calBtn.height = 100;
     [calBtn addTarget:self action:@selector(cancelTest) forControlEvents:UIControlEventTouchUpInside];
     
     calBtn.width = BSScreenW;
     calBtn.x = 0;
     calBtn.y = BSScreenH - calBtn.height - 20;
     
     [self.view addSubview:calBtn];
     
    //添加6个按钮
    NSArray *name = @[@"发视频",@"发图片",@"发段子",@"发声音",@"审帖",@"离线下载"];
    NSArray *imageName = @[@"publish-video",@"publish-picture",@"publish-text",@"publish-audio",@"publish-review",@"publish-offline"];
    NSUInteger count = name.count;
    NSUInteger maxCols = 3;
    CGFloat buttonW = 72;
    CGFloat buttonH = buttonW + 50;
    CGFloat buttonStartX = 20;
    CGFloat buttonStartY = (BSScreenH-2*buttonH)*0.5;
    CGFloat buttonMargin = (BSScreenW-2*buttonStartX-buttonW*maxCols)/(maxCols-1);
    for (NSUInteger i = 0; i < count; i++) {
        BSVerticalButton *button = [[BSVerticalButton alloc]init];
        [button setImage:[UIImage imageNamed:imageName[i]] forState:UIControlStateNormal];
        [button setTitle:name[i] forState:UIControlStateNormal];
        [button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
        button.titleLabel.font = [UIFont systemFontOfSize:14];
        button.tag = i;
        [button addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];
        [self.view addSubview:button];
        //计算frame
        NSUInteger row = i/maxCols;
        NSUInteger col = i%maxCols;
        CGFloat buttonX = buttonStartX + col*(buttonW+buttonMargin);
        CGFloat buttonY = buttonStartY + row*buttonH;
        //使用pop框架，改变frame往下掉,而且不需要再设置frame了，因为pop改变了frame
        POPSpringAnimation *anim = [POPSpringAnimation animationWithPropertyNamed:kPOPViewFrame];
        anim.fromValue = [NSValue valueWithCGRect:CGRectMake(buttonX, buttonY-BSScreenH, buttonW, buttonH)];
        anim.toValue   = [NSValue valueWithCGRect:CGRectMake(buttonX, buttonY, buttonW, buttonH)];
        anim.springBounciness = 8;
        anim.springSpeed = 8;
        anim.beginTime = CACurrentMediaTime()+0.1*i;
        [button pop_addAnimation:anim forKey:nil];
    }

    //添加顶部图片
    UIImageView *slogan = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"app_slogan"]];
    self.sloganView = slogan;
    [self.view addSubview:slogan];
    //中心约束
    POPSpringAnimation *anim = [POPSpringAnimation animationWithPropertyNamed:kPOPViewCenter];
    anim.fromValue = [NSValue valueWithCGPoint:CGPointMake(BSScreenW*0.5, BSScreenH*0.2-BSScreenH)];
    anim.toValue   = [NSValue valueWithCGPoint:CGPointMake(BSScreenW*0.5, BSScreenH*0.2)];
    anim.springBounciness = 8;
    anim.springSpeed = 8;
    anim.beginTime = CACurrentMediaTime()+0.1*count;
    [slogan pop_addAnimation:anim forKey:nil];
}
-(void)btnClick:(UIButton *)sender{
    NSLog(@"%ld",sender.tag);
}
-(void)cancelTest{
    [self cancel:nil];
}


- (void)cancel:(void(^)(int))completeion{
 //让按钮往下掉
 NSUInteger index = 2;
 NSUInteger count = self.view.subviews.count;

 for (NSUInteger i = index; i<count ; i++) {
     UIView *subview = self.view.subviews[i];
     //这里不需要计算frame，因为已经添加到view中，只需要设置最后的位置
     POPBasicAnimation *anim = [POPBasicAnimation animationWithPropertyNamed:kPOPViewCenter];
     anim.toValue  = [NSValue valueWithCGPoint:CGPointMake(subview.centerX, subview.centerY+BSScreenH)];
     anim.beginTime = CACurrentMediaTime()+0.1*i;
     [subview pop_addAnimation:anim forKey:nil];
     if (i == count-1) {
         //最后一个控件pop完退出控制器，写在外面会直接退出
         [anim setCompletionBlock:^(POPAnimation *anim, BOOL finished) {
             if (completeion) {
                 
             }
             [self dismissViewControllerAnimated:NO completion:nil];
         }];
     }
 }
}
@end

按钮的源码

//
//  BSVerticalButton.m
//  podDemos
//
//  Created by lujun on 2022/1/31.
//


#import "BSVerticalButton.h"
#import "UIView+Frame.h"
@implementation BSVerticalButton

 - (instancetype)initWithFrame:(CGRect)frame {
    if (self == [super initWithFrame:frame]) {
        self.titleLabel.textAlignment = NSTextAlignmentCenter;
    }
    return self;
}

  - (void)awakeFromNib {
      [super awakeFromNib];
    self.titleLabel.textAlignment = NSTextAlignmentCenter;
}

 //这个是控件重新布局，所以要调用layoutSubviews，而修改控件大小，是调用setFrame
 - (void)layoutSubviews {

    [super layoutSubviews];
    self.imageView.x = 0;
    self.imageView.y = 0;
    self.imageView.width = self.width;
    self.imageView.height = self.imageView.width;
    
    self.titleLabel.x = 0;
    self.titleLabel.y = self.imageView.height;
    self.titleLabel.width = self.width;
    self.titleLabel.height = self.height - self.width;
}

 - (void)setFrame:(CGRect)frame {
    [super setFrame:frame];
}
@end