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添加可以动态设置数据的方法 #1

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3 changes: 2 additions & 1 deletion JKSlidingNoteTest/JKSlidingNoteView.h
100644 → 100755
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ typedef NS_ENUM(NSInteger, JKSlidingNoteViewScrollDirection) {

@interface JKSlidingNoteView : UIView

@property (nonatomic, assign)JKSlidingNoteViewScrollDirection direction;
- (void)setData: (NSInteger)showingLinesCount timerInterval:(CGFloat)timerInterval direction:(JKSlidingNoteViewScrollDirection)scrollDirection titlesArray:(NSArray *)titlesArray;

- (instancetype)initWithFrame:(CGRect)frame showingLinesCount:(NSInteger)showingLinesCount timerInterval:(CGFloat)timerInterval direction:(JKSlidingNoteViewScrollDirection)scrollDirection titlesArray:(NSArray *)titlesArray;
@end
106 changes: 65 additions & 41 deletions JKSlidingNoteTest/JKSlidingNoteView.m
100644 → 100755
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Expand Up @@ -12,61 +12,85 @@ @interface JKSlidingNoteView()<UITableViewDelegate,UITableViewDataSource>

@property (nonatomic, strong)UITableView *tableView;
@property (nonatomic, assign)CGFloat cellHeight;
@property (nonatomic, assign)CGFloat timerInterval;
@property (nonatomic, strong)NSArray *titlesArray;
@property (nonatomic, assign)NSInteger showingLinesCount;
@property (nonatomic, assign)JKSlidingNoteViewScrollDirection direction;
@property (nonatomic, strong)NSTimer *timer;
@property (nonatomic, assign)NSInteger currentIndex;

@end

@implementation JKSlidingNoteView

-(instancetype)initWithFrame:(CGRect)frame{
if (self = [super initWithFrame:frame]) {
_tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, frame.size.width, frame.size.height)];
_tableView.backgroundColor = [UIColor redColor];
_tableView.showsHorizontalScrollIndicator = NO;
_tableView.showsVerticalScrollIndicator = NO;
_tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
_tableView.userInteractionEnabled = false;
_tableView.delegate = self;
_tableView.dataSource = self;
[self addSubview:_tableView];
}
return self;
}

- (instancetype)initWithFrame:(CGRect)frame showingLinesCount:(NSInteger)showingLinesCount timerInterval:(CGFloat)timerInterval direction:(JKSlidingNoteViewScrollDirection)scrollDirection titlesArray:(NSArray *)titlesArray{
if (self = [super initWithFrame:frame]) {
_cellHeight = frame.size.height / (showingLinesCount * 1.0);
_titlesArray = titlesArray;
_showingLinesCount = showingLinesCount;
_direction = scrollDirection;

_tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, frame.size.width, frame.size.height)];
_tableView.backgroundColor = [UIColor redColor];
_tableView.showsHorizontalScrollIndicator = NO;
_tableView.showsVerticalScrollIndicator = NO;
// _tableView.userInteractionEnabled = false;
_tableView.delegate = self;
_tableView.dataSource = self;
[self addSubview:_tableView];

__block JKSlidingNoteView *weakSelf = self;
_timer = [NSTimer timerWithTimeInterval:timerInterval repeats:YES block:^(NSTimer * _Nonnull timer) {
if (weakSelf.direction == JKSlidingNoteViewScrollDirectionGoUp) {
weakSelf.currentIndex = weakSelf.currentIndex + 1;
if (weakSelf.currentIndex >= weakSelf.titlesArray.count * 3 - (weakSelf.showingLinesCount - 1)) {
NSLog(@"++++++++%ld",weakSelf.currentIndex);
weakSelf.currentIndex = weakSelf.titlesArray.count * 2 - weakSelf.showingLinesCount;
[weakSelf.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:weakSelf.currentIndex inSection:0] atScrollPosition:UITableViewScrollPositionTop animated:NO];
weakSelf.currentIndex = weakSelf.currentIndex + 1;
}
} else if (weakSelf.direction == JKSlidingNoteViewScrollDirectionGoDown) {
weakSelf.currentIndex = weakSelf.currentIndex - 1;
if (weakSelf.currentIndex < 0) {
NSLog(@"++++++++%ld",weakSelf.currentIndex);
weakSelf.currentIndex = weakSelf.titlesArray.count;
[weakSelf.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:weakSelf.currentIndex inSection:0] atScrollPosition:UITableViewScrollPositionTop animated:NO];
weakSelf.currentIndex = weakSelf.currentIndex - 1;
}
}
[weakSelf.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:weakSelf.currentIndex inSection:0] atScrollPosition:UITableViewScrollPositionTop animated:YES];
NSLog(@"____________%ld",weakSelf.currentIndex);
}];
[[NSRunLoop mainRunLoop] addTimer:_timer forMode:NSDefaultRunLoopMode];
}
return self;
if (self = [self initWithFrame:frame]) {
[self setData:showingLinesCount timerInterval:timerInterval direction:scrollDirection titlesArray:titlesArray];
}
return self;
}

-(void)setData: (NSInteger)showingLinesCount timerInterval:(CGFloat)timerInterval direction:(JKSlidingNoteViewScrollDirection)scrollDirection titlesArray:(NSArray *)titlesArray{
_direction = scrollDirection;
_timerInterval = timerInterval;
_showingLinesCount = showingLinesCount;
_titlesArray = titlesArray;
_cellHeight = self.frame.size.height / (_showingLinesCount * 1.0);
[_tableView reloadData];

if(_timer != nil){
[_timer invalidate];
}

_timer = [NSTimer timerWithTimeInterval:_timerInterval target:self selector:@selector(timerFire) userInfo:nil repeats:YES];

[[NSRunLoop mainRunLoop] addTimer:_timer forMode:NSDefaultRunLoopMode];
}

- (void)timerFire {
__block JKSlidingNoteView *weakSelf = self;
if (weakSelf.direction == JKSlidingNoteViewScrollDirectionGoUp) {
weakSelf.currentIndex = weakSelf.currentIndex + 1;
if (weakSelf.currentIndex >= weakSelf.titlesArray.count * 3 - (weakSelf.showingLinesCount - 1)) {
//NSLog(@"++++++++%ld",weakSelf.currentIndex);
weakSelf.currentIndex = weakSelf.titlesArray.count * 2 - weakSelf.showingLinesCount;
[weakSelf.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:weakSelf.currentIndex inSection:0] atScrollPosition:UITableViewScrollPositionTop animated:NO];
weakSelf.currentIndex = weakSelf.currentIndex + 1;
}
} else if (weakSelf.direction == JKSlidingNoteViewScrollDirectionGoDown) {
weakSelf.currentIndex = weakSelf.currentIndex - 1;
if (weakSelf.currentIndex < 0) {
//NSLog(@"++++++++%ld",weakSelf.currentIndex);
weakSelf.currentIndex = weakSelf.titlesArray.count;
[weakSelf.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:weakSelf.currentIndex inSection:0] atScrollPosition:UITableViewScrollPositionTop animated:NO];
weakSelf.currentIndex = weakSelf.currentIndex - 1;
}
}
[weakSelf.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:weakSelf.currentIndex inSection:0] atScrollPosition:UITableViewScrollPositionTop animated:YES];
//NSLog(@"____________%ld",weakSelf.currentIndex);
}

#pragma mark ---------- UITableViewDelegate,UITableViewDataSource ------------
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return _titlesArray.count * 3;
if(_titlesArray != nil){
return _titlesArray.count * 3;
}
return 0;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
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19 changes: 19 additions & 0 deletions JKSlidingNoteTest/ViewController.m
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Expand Up @@ -57,6 +57,25 @@ - (void)viewDidLoad {

JKSlidingNoteView *slidingNote3 = [[JKSlidingNoteView alloc] initWithFrame:CGRectMake(CGRectGetMaxX(label3.frame), label3.frame.origin.y, [UIScreen mainScreen].bounds.size.width, label3.frame.size.height) showingLinesCount:2 timerInterval:2 direction:JKSlidingNoteViewScrollDirectionGoDown titlesArray:@[@"1:Jack is a good boy",@"2:you r right",@"3:you r right..."]];
[self.view addSubview:slidingNote3];

//----------------------------------------------------------------------------------------
UILabel *label4 = [[UILabel alloc] initWithFrame:CGRectMake(0, 400, 88, 88)];
label4.text = @"公告新闻";
label4.textAlignment = NSTextAlignmentCenter;
label4.numberOfLines = 0;
label4.font = [UIFont boldSystemFontOfSize:25];
label4.textColor = [UIColor whiteColor];
label4.backgroundColor = [UIColor redColor];
[self.view addSubview:label4];

JKSlidingNoteView *slidingNote4 = [[JKSlidingNoteView alloc] initWithFrame:CGRectMake(CGRectGetMaxX(label4.frame), label4.frame.origin.y, [UIScreen mainScreen].bounds.size.width, label4.frame.size.height)];
[slidingNote4 setData:3 timerInterval:2 direction:JKSlidingNoteViewScrollDirectionGoUp titlesArray:@[@"1:Jack is a good boy",@"2:you r right",@"3:you r right..."]];
[self.view addSubview:slidingNote4];

//5秒再更新数据
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(5.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[slidingNote4 setData:3 timerInterval:2 direction:JKSlidingNoteViewScrollDirectionGoUp titlesArray:@[@"1:更新了数据1",@"2:更新了数据2",@"3:更新了数据3..."]];
});
}


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