封装跑马灯
//blean为yes 就是点击上面一个label no就是点击下面一个label
typedef void(^showLableClickBlock)(BOOL ,NSString *);
@interface runView : UIView
- (instancetype)initWithTitleArray:(NSArray *)titleArray;
@property (nonatomic ,copy)showLableClickBlock ClickBlock;
UI布局
- (void)setUpUI
{
if (self.headlinesView == nil)
{
self.headlinesView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, KLSCREEN_WIDTH, 70)];
self.headlinesView.backgroundColor = [UIColor grayColor];
[self addSubview:self.headlinesView];
UIImageView *icon = [[UIImageView alloc] initWithFrame:CGRectMake(10, 12, 64, 16)];
icon.image = [UIImage imageNamed:@"headlines_icon"];
icon.userInteractionEnabled = YES;
[self.headlinesView addSubview:icon];
self.allViewsContentView =[[UIView alloc] initWithFrame:CGRectMake(CGRectGetMaxX(icon.frame)+10, 0, KLSCREEN_WIDTH - CGRectGetMaxX(icon.frame) - 10 - 5, 70)];
self.allViewsContentView.userInteractionEnabled = YES;
[self.headlinesView addSubview: self.allViewsContentView];
//立即出现的View
self.showView = [[ContentView alloc] initWithFrame:CGRectMake(0, 0, CGRectGetWidth(self.allViewsContentView.frame), 70)];
self.showView.delegate = self;
// self.showView.backgroundColor = [UIColor grayColor];
[self.allViewsContentView addSubview:self.showView];
//即将出现的view
self.WillshowView = [[ContentView alloc] initWithFrame:CGRectMake(0, 70,CGRectGetWidth(self.allViewsContentView.frame) , 70)];
// self.WillshowView.backgroundColor = [UIColor grayColor];
[self.allViewsContentView addSubview:self.WillshowView];
if (_titleArray && [_titleArray isKindOfClass:[NSArray class]] && _titleArray.count >= 2)
{
[self settingHeadlinesLabel:0];
if (_titleArray.count <=2) {
[self removeRotionTimer];
}else{
[self settingWillHeadlinesLabel:_showHeadlinesIndex];
[self addRotationTimer];
}
}
}
}
属性
#import "Masonry.h"
#import "ContentView.h"
@interface runView ()
@property(nonatomic,strong)NSArray *titleArray;
@property(nonatomic, strong)UIView *allViewsContentView;
@property(nonatomic, strong)UIView *headlinesView;
@property(nonatomic, assign)NSInteger showHeadlinesIndex;
@property(nonatomic, assign)NSInteger CurrentHeadlinesIndex;
@property(nonatomic,strong)NSTimer *timer;
@property(nonatomic, strong)ContentView *showView; //出现的view
@property(nonatomic, strong)ContentView *WillshowView; //即将出现的view
@end
#define KLSCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width)
#define KLSCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)
@implementation runView
- (instancetype)initWithTitleArray:(NSArray *)titleArray
{
if (self = [super init]) {
self.titleArray = titleArray;
[self setUpUI];
}
return self;
}
定时器
#pragma mark -移除定时器
- (void)removeRotionTimer
{
if (self.timer) {
[self.timer invalidate];
self.timer = nil;
}
}
#pragma mark -添加定时器
- (void)addRotationTimer
{
if (self.timer) return;
self.timer = [NSTimer scheduledTimerWithTimeInterval:1.5 target:self selector:@selector(switchHeadLines) userInfo:nil repeats:YES];
[[NSRunLoop mainRunLoop] addTimer:self.timer forMode:NSRunLoopCommonModes];
}
动画 赋值顺序
#pragma mark -动画
- (void)switchHeadLines
{
if (self.showHeadlinesIndex >= self.titleArray.count)
{
self.showHeadlinesIndex = 0;
}
CGRect bounds = self.allViewsContentView.bounds;
CGRect bounds1 = bounds;
bounds.origin.y = 70;
CGRect bounds2 = bounds;
[UIView animateWithDuration:0.5 animations:^{
self.allViewsContentView.bounds = bounds2;
} completion:^(BOOL finished) {
[self settingHeadlinesLabel:_CurrentHeadlinesIndex];
[self settingWillHeadlinesLabel:_showHeadlinesIndex];
self.allViewsContentView.bounds = bounds1;
}];
}
#pragma mark -检测title数组是否越界和界限值的处理 归0
- (void)checkHeadlinesIndexBounds
{
self.showHeadlinesIndex ++;
if (self.showHeadlinesIndex >= self.titleArray.count)
{
self.showHeadlinesIndex = 0;
}
}
#pragma mark -显示的view赋值
- (void)settingHeadlinesLabel:(NSInteger)index;
{
_showHeadlinesIndex = index;
//0 // 2
[self.showView settingUpLabel:self.titleArray[_showHeadlinesIndex]];
[self checkHeadlinesIndexBounds];
//1 // 3
[self.showView settingDownLabel:self.titleArray[_showHeadlinesIndex]];
[self checkHeadlinesIndexBounds];
//_c_CurrentHeadlinesIndex = 2 // 4
_CurrentHeadlinesIndex = _showHeadlinesIndex;
}
#pragma mark -即将显示的view赋值
- (void)settingWillHeadlinesLabel:(NSInteger)index;
{
//_showHeadlinesIndex =2
[self.WillshowView settingUpLabel:self.titleArray[_showHeadlinesIndex]];
[self checkHeadlinesIndexBounds];
//_showHeadlinesIndex = 3;
[self.WillshowView settingDownLabel:self.titleArray[_showHeadlinesIndex]];
}