iOS实现动态元素的引导图效果

NSMutableArray * elementsDataArr = [[NSMutableArray alloc] init];

/* 动画元素的创建 */
LMJAnimatedElement * element1 = [[LMJAnimatedElement alloc] initWithImage:[UIImage imageNamed:@"umbrella"]];
element1.belongToScreen = 0;      // 设置所属第几屏
element1.size    = CGSizeMake(64, 64); // 元素大小
element1.startPoint  = CGPointMake(130, 420); // 元素在屏幕的起始点位置
element1.endPoint   = CGPointMake(130, 420); // 元素在屏幕的终点位置
element1.isGradient  = NO;     // 是否淡入淡出
[elementsDataArr addObject:element1];

LMJAnimatedElement * element2 = [[LMJAnimatedElement alloc] initWithImage:[UIImage imageNamed:@"cocktail"]];
element2.belongToScreen = 1;
element2.size    = CGSizeMake(64, 64);
element2.startPoint  = CGPointMake(40, 350);
element2.endPoint   = CGPointMake(40, 480);
element2.isGradient  = YES;
[elementsDataArr addObject:element2];

LMJAnimatedElement * element3 = [[LMJAnimatedElement alloc] initWithImage:[UIImage imageNamed:@"flip_flops"]];
element3.belongToScreen = 2;
element3.size    = CGSizeMake(64, 64);
element3.startPoint  = CGPointMake(-70, 500);
element3.endPoint   = CGPointMake(190, 470);
element3.isGradient  = YES;
[elementsDataArr addObject:element3];

LMJAnimatedElement * element4 = [[LMJAnimatedElement alloc] initWithImage:[UIImage imageNamed:@"surfboard"]];
element4.belongToScreen = 3;
element4.size    = CGSizeMake(96, 96);
element4.startPoint  = CGPointMake(300, 440);
element4.endPoint   = CGPointMake(40, 440);
element4.isGradient  = NO;
[elementsDataArr addObject:element4];

LMJAnimatedElement * element5 = [[LMJAnimatedElement alloc] initWithImage:[UIImage imageNamed:@"beach_chair"]];
element5.belongToScreen = 4;
element5.size    = CGSizeMake(64, 64);
element5.startPoint  = CGPointMake(320, 440);
element5.endPoint   = CGPointMake(220, 440);
element5.isGradient  = YES;
[elementsDataArr addObject:element5];

/* 模块的实现 */
_welcomeView = [[LMJDynamicWelcomeView alloc] initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.height, [UIScreen mainScreen].bounds.size.height)];
// 设置动画元素
[_welcomeView setAnimatedItems:elementsDataArr];
// 设置背景图片，以及背景图片的尺寸，当图片尺寸超过屏幕宽度时，会自动计算背景图每屏的位移量，以致滑到最后一屏的时候，背景图移到最右端
[_welcomeView setBackgroundImage:[UIImage imageNamed:@"beach_bg.png"] size:CGSizeMake(_welcomeView.frame.size.height/620.f*992.f, _welcomeView.frame.size.height)];
// 设置滑动屏数
[_welcomeView setAnimatedPageCount:5];

[self.view addSubview:_welcomeView];

- (LMJAnimatedElement *)initWithImage:(UIImage *)image;

// - (LMJAnimatedElement *)initWithText:(NSString *)text; // 该功能尚未实现，敬请期待...

@property (nonatomic,assign) NSInteger belongToScreen; // 属于第几屏 （取值范围：0~...）

@property (nonatomic,assign) CGSize size; // 元素大小

@property (nonatomic,assign) CGPoint startPoint; // 动画起点
@property (nonatomic,assign) CGPoint endPoint; // 动画终点

@property (nonatomic,assign) BOOL isGradient; // 是否有渐变效果 当设置为YES时，动画元素只有在所属页跟随动画出现；当设置为NO时，动画元素会一直在屏幕显示，只在其所属页移动

@property (nonatomic,strong) UIView * elementView; // 元素容器

/* 设置所有动画元素 */
- (void)setAnimatedItems:(NSArray<LMJAnimatedElement *> *)items;

/* 设置引导图滑动的屏数 */
- (void)setAnimatedPageCount:(NSInteger)count;

/* 设置背景图以及背景图的大小 */
- (void)setBackgroundImage:(UIImage *)image size:(CGSize)size;