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时光不回头,当下最重要。

ios炫酷的引导界面

一.最终效果图

《ios炫酷的引导界面》

ed.gif

二.实现的原理
1.先定义好所有图片的位置

    pageoneImage1 = [[UIImageView alloc]initWithFrame:CGRectMake(0, 40, ScreenWidth, 30)];
    pageoneImage1.image = [UIImage imageNamed:@"1_01"];
    [imageView1 addSubview:pageoneImage1];
    
    pageoneImage2 = [[UIImageView alloc]initWithFrame:CGRectMake(0, 100, ScreenWidth, ScreenWidth)];
    pageoneImage2.image = [UIImage imageNamed:@"1_02"];
    [imageView1 addSubview:pageoneImage2];
    
    pageoneImage3 = [[UIImageView alloc]initWithFrame:CGRectMake(0, 120, ScreenWidth, ScreenWidth/4)];
    pageoneImage3.image = [UIImage imageNamed:@"1_03"];
    [imageView1 addSubview:pageoneImage3];
    
    pageoneImage4 = [[UIImageView alloc]initWithFrame:CGRectMake(ScreenWidth/6, CGRectGetMaxY(pageoneImage2.frame)+10, ScreenWidth*2/3, 50)];
    pageoneImage4.image = [UIImage imageNamed:@"1_04"];
    [imageView1 addSubview:pageoneImage4];
    
    pageoneImage5 = [[UIImageView alloc]initWithFrame:CGRectMake(40, CGRectGetMaxY(pageoneImage4.frame)+10, ScreenWidth-80, 40)];
    pageoneImage5.image = [UIImage imageNamed:@"1_05"];
    [imageView1 addSubview:pageoneImage5];
    
    //2
    pageoneImage1 = [[UIImageView alloc]initWithFrame:CGRectMake(0, 40, ScreenWidth, 30)];
    pageoneImage1.image = [UIImage imageNamed:@"1_01"];
    [imageView2 addSubview:pageoneImage1];
    
    pagetwoImage1 = [[UIImageView alloc]initWithFrame:CGRectMake(-ScreenWidth/2, 100-ScreenWidth/2, ScreenWidth*2, ScreenWidth*2)];
    pagetwoImage1.image = [UIImage imageNamed:@"2_01"];
    [imageView2 addSubview:pagetwoImage1];
    
    pagetwoImage2 = [[UIImageView alloc]initWithFrame:CGRectMake(0, CGRectGetMaxY(pagetwoImage1.frame)+10, ScreenWidth, 60)];
    pagetwoImage2.image = [UIImage imageNamed:@"2_02"];
    [imageView2 addSubview:pagetwoImage2];
    
    pagetwoImage3 = [[UIImageView alloc]initWithFrame:CGRectMake(0, CGRectGetMaxY(pagetwoImage2.frame)+10, ScreenWidth, 30)];
    pagetwoImage3.image = [UIImage imageNamed:@"2_03"];
    [imageView2 addSubview:pagetwoImage3];
    
    //3
    pageoneImage1 = [[UIImageView alloc]initWithFrame:CGRectMake(0, 40, ScreenWidth, 30)];
    pageoneImage1.image = [UIImage imageNamed:@"1_01"];
    [imageView3 addSubview:pageoneImage1];
    
    pagethreeImage1 = [[UIImageView alloc]initWithFrame:CGRectMake(0, 100, ScreenWidth, ScreenWidth*31/36)];
    pagethreeImage1.image = [UIImage imageNamed:@"3_01"];
    [imageView3 addSubview:pagethreeImage1];
    
    pagethreeImage2 = [[UIImageView alloc]initWithFrame:CGRectMake(ScreenWidth, 100, ScreenWidth, ScreenWidth*31/36)];
    pagethreeImage2.image = [UIImage imageNamed:@"3_02"];
    [imageView3 addSubview:pagethreeImage2];
    
    pagethreeImage3 = [[UIImageView alloc]initWithFrame:CGRectMake(ScreenWidth/2, 100, ScreenWidth, ScreenWidth*31/36)];
    pagethreeImage3.image = [UIImage imageNamed:@"3_03"];
    [imageView3 addSubview:pagethreeImage3];
    
    pagethreeImage4 = [[UIImageView alloc]initWithFrame:CGRectMake(10, ScreenHeight, ScreenWidth-20, 60)];
    pagethreeImage4.image = [UIImage imageNamed:@"3_04"];
    pagethreeImage4.alpha = 0;
    [imageView3 addSubview:pagethreeImage4];
    
    pagethreeImage5 = [[UIImageView alloc]initWithFrame:CGRectMake(0, CGRectGetMaxY(pagethreeImage4.frame)+15, ScreenWidth, 40)];
    pagethreeImage5.image = [UIImage imageNamed:@"3_05"];
    pagethreeImage5.alpha = 0;
    [imageView3 addSubview:pagethreeImage5];
    
    //5
    pagefiveImage1 = [[UIImageView alloc]initWithFrame:CGRectMake(15, 50-300, ScreenWidth-30, 70)];
    pagefiveImage1.image = [UIImage imageNamed:@"5_01"];
    [imageView5 addSubview:pagefiveImage1];
    
    pagefiveImage2 = [[UIImageView alloc]initWithFrame:CGRectMake(55, CGRectGetMaxY(pagefiveImage1.frame)+10-300, ScreenWidth-110, 10)];
    pagefiveImage2.image = [UIImage imageNamed:@"5_02"];
    pagefiveImage2.alpha = 0;
    [imageView5 addSubview:pagefiveImage2];
    
    pagefiveImage3 = [[UIImageView alloc]initWithFrame:CGRectMake(ScreenWidth/4, ScreenHeight-ScreenWidth/2-60+300, ScreenWidth/2, ScreenWidth/4)];
    pagefiveImage3.image = [UIImage imageNamed:@"5_03"];
    pagefiveImage3.alpha = 0;
    [imageView5 addSubview:pagefiveImage3];
    
    pagefiveImage4 = [[UIImageView alloc]initWithFrame:CGRectMake(-ScreenWidth/2, ScreenHeight-ScreenWidth*5/4, ScreenWidth*4, ScreenWidth*4)];
    pagefiveImage4.image = [UIImage imageNamed:@"5_05"];
    pagefiveImage4.alpha = 0;
    [self rotate360DegreeWithImageView:pagefiveImage4];
    [imageView5 addSubview:pagefiveImage4];
    
    imgView = [[UIImageView alloc]initWithFrame:CGRectMake(50, ScreenHeight-ScreenWidth*4/5, 30-30, 30-30)];
    [self tomAnimationWithName:@"run" count:9];
    imgView.alpha = 0;
    [imageView5 addSubview:imgView];

2.初始化一个scrollview

    UIScrollView *scrollView = [[UIScrollView alloc] init];
    scrollView.frame = self.view.bounds;
    CGFloat contentW = scrollView.bounds.size.width * XXNewfeatureImageCount;
    [self.view addSubview:scrollView];
    
    scrollView.contentSize = CGSizeMake(contentW, 0);
    scrollView.pagingEnabled = YES;
    scrollView.bounces = NO;
    scrollView.showsHorizontalScrollIndicator = NO;
    scrollView.delegate = self;
    
    // 添加图片
    CGFloat imageW = scrollView.bounds.size.width;
    CGFloat imageH = scrollView.bounds.size.height;
    
    imageView1 = [[UIImageView alloc] init];
    imageView1.frame = CGRectMake(0 * imageW, 0, imageW, imageH);
    [scrollView addSubview:imageView1];
    
    imageView2 = [[UIImageView alloc] init];
    imageView2.frame = CGRectMake(1 * imageW, 0, imageW, imageH);
    imageView2.alpha = 0;
    [scrollView addSubview:imageView2];
    
    imageView3 = [[UIImageView alloc] init];
    imageView3.frame = CGRectMake(2 * imageW, 0, imageW, imageH);
    [scrollView addSubview:imageView3];
    
    imageView5 = [[UIImageView alloc] init];
    imageView5.frame = CGRectMake(3 * imageW, 0, imageW, imageH);
    imageView5.userInteractionEnabled = YES;
    imageView5.alpha = 0;
    [scrollView addSubview:imageView5];
    

3.在UIScrollViewDelegate 中写好滑动时图片所发生的一些便宜,隐藏的一些操作。

#pragma mark - UIScrollViewDelegate method
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    offsetX = scrollView.contentOffset.x;
    NSLog(@"%f",offsetX);
    int page = offsetX / scrollView.bounds.size.width + 0.5;
    
#pragma mark --- 此处写动画
    if (offsetX <= ScreenWidth/2) {
        [self firstPage];
    }
    else if (offsetX > ScreenWidth/2 && offsetX <= ScreenWidth+ScreenWidth/2) {
        [self secondPage];
    }
    else if (offsetX > ScreenWidth+ScreenWidth/2 && offsetX <= ScreenWidth*2+ScreenWidth/2) {
        [self thirdPage];
    }
    else if (offsetX > ScreenWidth*2+ScreenWidth/2 && offsetX <= ScreenWidth*3+ScreenWidth/2) {
        [self lastPage];
    }
    
    self.pageControl.currentPage = page;
}

4.设置最后一个图的gif动画和旋转动画

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