天津网站策划,九江做网站的大公司,小程序模板消息推送规则,有经验的郑州网站建设iOS开发-实现热门话题标签tag显示控件
话题标签tag显示非常常见#xff0c;如选择你的兴趣#xff0c;选择关注的群#xff0c;超话#xff0c;话题等等。
一、效果图 二、实现代码
由于显示的是在列表中#xff0c;这里整体控件是放在UITableViewCell中的。
2.1 标签…iOS开发-实现热门话题标签tag显示控件
话题标签tag显示非常常见如选择你的兴趣选择关注的群超话话题等等。
一、效果图 二、实现代码
由于显示的是在列表中这里整体控件是放在UITableViewCell中的。
2.1 标签tag按钮实现
自定义标签tag按钮INRmdTopicButton INRmdTopicButton.h
interface INRmdTopicButton : UIControlproperty (nonatomic, strong) NSString *topicName;
property (nonatomic, assign) CGFloat showTopicWidth; (CGFloat)topicWidth:(NSString *)name;endINRmdTopicButton.m
interface INRmdTopicButton ()property (nonatomic, strong) UIImageView *backImageView; //图片控件
property (nonatomic, strong) UIImageView *tbkImageView; //图片控件
property (nonatomic, strong) UILabel *titleLabel;endimplementation INRmdTopicButton- (instancetype)initWithFrame:(CGRect)frame
{self [super initWithFrame:frame];if (self) {[self addSubview:self.backImageView];[self.backImageView addSubview:self.tbkImageView];[self.backImageView addSubview:self.titleLabel];}return self;
}- (void)layoutSubviews {[super layoutSubviews];self.backImageView.frame self.bounds;self.tbkImageView.frame CGRectMake(0.0, 0.0, CGRectGetWidth(self.backImageView.frame), CGRectGetHeight(self.backImageView.frame) - kSmallPadding);self.titleLabel.frame CGRectMake(0.0, 0.0, CGRectGetWidth(self.backImageView.frame), kTopicNameHeight);
}- (void)setTopicName:(NSString *)topicName {_topicName (topicName?topicName:);self.titleLabel.text _topicName;[self setNeedsLayout];
} (CGFloat)topicWidth:(NSString *)name {CGSize topicSize [name sizeWithFont:[UIFont systemFontOfSize:12] forMaxSize:CGSizeMake(MAXFLOAT, kTopicHeight)];return topicSize.width 2*kSmallPadding;
}#pragma mark - SETTER/GETTER
- (UIImageView *)backImageView {if (!_backImageView) {_backImageView [[UIImageView alloc] initWithFrame:CGRectZero];_backImageView.userInteractionEnabled YES;_backImageView.backgroundColor [UIColor clearColor];}return _backImageView;
}- (UIImageView *)tbkImageView {if (!_tbkImageView) {_tbkImageView [[UIImageView alloc] initWithFrame:CGRectZero];_tbkImageView.userInteractionEnabled YES;_tbkImageView.backgroundColor [UIColor clearColor];UIImage *image [UIImage imageNamed:bk_topic_r];image [image stretchableImageWithLeftCapWidth:floorf(image.size.width * 0.5) topCapHeight:floorf(image.size.height * 0.5)];_tbkImageView.image image;}return _tbkImageView;
}- (UILabel *)titleLabel {if (!_titleLabel) {_titleLabel [[UILabel alloc] initWithFrame:CGRectZero];_titleLabel.font [UIFont systemFontOfSize:12];_titleLabel.textAlignment NSTextAlignmentCenter;_titleLabel.textColor [UIColor colorWithHexString:555555];_titleLabel.backgroundColor [UIColor clearColor];}return _titleLabel;
}end2.2 显示排列标签tag
显示标题tag时候需要排列按钮
INRmdTopicButton *lastButton nil;for (UIView *subView in self.topicBKImageView.subviews) {if ([subView isKindOfClass:[INRmdTopicButton class]]) {INRmdTopicButton *button (INRmdTopicButton *)subView;button.hidden NO;if (lastButton) {if (CGRectGetMaxX(lastButton.frame) button.showTopicWidth kSmallPadding maxWidth) {button.frame CGRectMake(0.0, CGRectGetMaxY(lastButton.frame), button.showTopicWidth, kTopicHeight);} else {button.frame CGRectMake(CGRectGetMaxX(lastButton.frame) kSmallPadding, CGRectGetMinY(lastButton.frame), button.showTopicWidth, kTopicHeight);}} else {button.frame CGRectMake(originX, originY, button.showTopicWidth, kTopicHeight);}if (CGRectGetMaxY(button.frame) maxHeight) {button.hidden YES;} else {button.hidden NO;}lastButton button;}}这里还加了拖动手势UIPanGestureRecognizer当往左拖动的时候会显示松开换一换的功能。调用接口实现。
#pragma mark - panGestureHandle
- (void)panGestureHandle:(UIPanGestureRecognizer *)pan{if (pan.state UIGestureRecognizerStateBegan) {NSLog(UIGestureRecognizerStateBegan);self.startPoint [pan translationInView:self];} if (pan.state UIGestureRecognizerStateChanged) {NSLog(UIGestureRecognizerStateChanged);CGPoint point [pan translationInView:self];CGFloat xDistance point.x - self.startPoint.x;// 左右滑动NSLog(左右滑动);if (xDistance 0) {NSLog(向右滑动);CGRect backFrame self.topicBKImageView.frame;backFrame.origin.x kMidPadding;self.topicBKImageView.frame backFrame;} else {NSLog(向左滑动);CGRect backFrame self.topicBKImageView.frame;backFrame.origin.x kMidPadding xDistance*0.5;self.topicBKImageView.frame backFrame;}} else {// if (pan.state UIGestureRecognizerStateEnded || pan.state UIGestureRecognizerStateCancelled || pan.state UIGestureRecognizerStateFailed)NSLog(UIGestureRecognizerStateEnded);CGRect backFrame self.topicBKImageView.frame;backFrame.origin.x kMidPadding;[UIView animateWithDuration:0.55 delay:0.0 usingSpringWithDamping:0.5 initialSpringVelocity:7.0 options:UIViewAnimationOptionCurveEaseInOut animations:^{self.topicBKImageView.frame backFrame;} completion:^(BOOL finished) {}];}
}-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {return YES;
}2.3 完整代码如下
INRecommentTopicCell.h
#import UIKit/UIKit.hinterface INRmdTopicButton : UIControlproperty (nonatomic, strong) NSString *topicName;
property (nonatomic, assign) CGFloat showTopicWidth; (CGFloat)topicWidth:(NSString *)name;end/**推荐的话题*/
interface INRecommentTopicCell : UITableViewCell (CGFloat)cellHeight;endINRecommentTopicCell.m
#import INRecommentTopicCell.h
#import UIColorAddition.h
#import NSStringSize.hstatic CGFloat kCellHeight 260.0;static CGFloat kCellHorBGPadding 10.0f;
static CGFloat kCellVerBGPadding 5.0f;static CGFloat kTitleHeight 44.0f;
static CGFloat kMidPadding 10.0f;static CGFloat kSmallPadding 5.0f;
static CGFloat kTopicHeight 40.0f;
static CGFloat kTopicNameHeight 30.0f;static CGFloat kExchangeBtnSize 40.0f;
static CGFloat kTisWidth 20.0f;interface INRmdTopicButton ()property (nonatomic, strong) UIImageView *backImageView; //图片控件
property (nonatomic, strong) UIImageView *tbkImageView; //图片控件
property (nonatomic, strong) UILabel *titleLabel;endimplementation INRmdTopicButton- (instancetype)initWithFrame:(CGRect)frame
{self [super initWithFrame:frame];if (self) {[self addSubview:self.backImageView];[self.backImageView addSubview:self.tbkImageView];[self.backImageView addSubview:self.titleLabel];}return self;
}- (void)layoutSubviews {[super layoutSubviews];self.backImageView.frame self.bounds;self.tbkImageView.frame CGRectMake(0.0, 0.0, CGRectGetWidth(self.backImageView.frame), CGRectGetHeight(self.backImageView.frame) - kSmallPadding);self.titleLabel.frame CGRectMake(0.0, 0.0, CGRectGetWidth(self.backImageView.frame), kTopicNameHeight);
}- (void)setTopicName:(NSString *)topicName {_topicName (topicName?topicName:);self.titleLabel.text _topicName;[self setNeedsLayout];
} (CGFloat)topicWidth:(NSString *)name {CGSize topicSize [name sizeWithFont:[UIFont systemFontOfSize:12] forMaxSize:CGSizeMake(MAXFLOAT, kTopicHeight)];return topicSize.width 2*kSmallPadding;
}#pragma mark - SETTER/GETTER
- (UIImageView *)backImageView {if (!_backImageView) {_backImageView [[UIImageView alloc] initWithFrame:CGRectZero];_backImageView.userInteractionEnabled YES;_backImageView.backgroundColor [UIColor clearColor];}return _backImageView;
}- (UIImageView *)tbkImageView {if (!_tbkImageView) {_tbkImageView [[UIImageView alloc] initWithFrame:CGRectZero];_tbkImageView.userInteractionEnabled YES;_tbkImageView.backgroundColor [UIColor clearColor];UIImage *image [UIImage imageNamed:bk_topic_r];image [image stretchableImageWithLeftCapWidth:floorf(image.size.width * 0.5) topCapHeight:floorf(image.size.height * 0.5)];_tbkImageView.image image;}return _tbkImageView;
}- (UILabel *)titleLabel {if (!_titleLabel) {_titleLabel [[UILabel alloc] initWithFrame:CGRectZero];_titleLabel.font [UIFont systemFontOfSize:12];_titleLabel.textAlignment NSTextAlignmentCenter;_titleLabel.textColor [UIColor colorWithHexString:555555];_titleLabel.backgroundColor [UIColor clearColor];}return _titleLabel;
}end/**推荐的话题*/
interface INRecommentTopicCell ()property (nonatomic, strong) UIImageView *backImageView; //图片控件
property (nonatomic, strong) UIImageView *contentBGImageView; //图片控件
property (nonatomic, strong) UIImageView *topicBKImageView; //图片控件
property (nonatomic, strong) UILabel *titleLabel;
property (nonatomic, strong) UIButton *exchangeButton; // 更多property (nonatomic, strong) UILabel *tipsLabel;property (nonatomic) CGPoint startPoint; // 开始点endimplementation INRecommentTopicCell- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{self [super initWithStyle:style reuseIdentifier:reuseIdentifier];if (self) {// Initialization codeself.backgroundColor [UIColor clearColor];self.contentView.backgroundColor [UIColor clearColor];[self.contentView addSubview:self.backImageView];[self.contentView addSubview:self.contentBGImageView];[self.contentBGImageView addSubview:self.titleLabel];[self.contentBGImageView addSubview:self.exchangeButton];[self.contentBGImageView addSubview:self.tipsLabel];[self.contentBGImageView addSubview:self.topicBKImageView];[self setupRmdTopicViews];UIPanGestureRecognizer *panGesture [[UIPanGestureRecognizer alloc]initWithTarget:self action:selector(panGestureHandle:)];panGesture.minimumNumberOfTouches 1;panGesture.maximumNumberOfTouches 1;panGesture.delegate self;[self.contentBGImageView addGestureRecognizer:panGesture];}return self;
}- (void)layoutSubviews {[super layoutSubviews];self.backImageView.frame CGRectMake(kCellHorBGPadding, kCellVerBGPadding, CGRectGetWidth(self.bounds) - 2*kCellHorBGPadding, CGRectGetHeight(self.bounds) - 2*kCellVerBGPadding);self.contentBGImageView.frame CGRectMake(kCellHorBGPadding, kCellVerBGPadding, CGRectGetWidth(self.bounds) - 2*kCellHorBGPadding, CGRectGetHeight(self.bounds) - 2*kCellVerBGPadding);self.titleLabel.frame CGRectMake(kMidPadding, 0.0, CGRectGetWidth(self.backImageView.frame) - 3*kMidPadding - kExchangeBtnSize, kTitleHeight);self.exchangeButton.frame CGRectMake(CGRectGetWidth(self.backImageView.frame) - kMidPadding - kExchangeBtnSize, (kTitleHeight - kExchangeBtnSize)/2, kExchangeBtnSize, kExchangeBtnSize);CGFloat height CGRectGetHeight(self.backImageView.frame) - CGRectGetMaxY(self.titleLabel.frame);self.tipsLabel.frame CGRectMake(CGRectGetWidth(self.backImageView.frame) - kMidPadding - kTisWidth, 0.0, kTisWidth, height);self.topicBKImageView.frame CGRectMake(kMidPadding, CGRectGetMaxY(self.titleLabel.frame), CGRectGetWidth(self.backImageView.frame) - 2*kMidPadding, height);CGFloat maxWidth CGRectGetWidth(self.topicBKImageView.frame);CGFloat maxHeight CGRectGetHeight(self.topicBKImageView.frame);CGFloat originX 0.0;CGFloat originY 0.0;INRmdTopicButton *lastButton nil;for (UIView *subView in self.topicBKImageView.subviews) {if ([subView isKindOfClass:[INRmdTopicButton class]]) {INRmdTopicButton *button (INRmdTopicButton *)subView;button.hidden NO;if (lastButton) {if (CGRectGetMaxX(lastButton.frame) button.showTopicWidth kSmallPadding maxWidth) {button.frame CGRectMake(0.0, CGRectGetMaxY(lastButton.frame), button.showTopicWidth, kTopicHeight);} else {button.frame CGRectMake(CGRectGetMaxX(lastButton.frame) kSmallPadding, CGRectGetMinY(lastButton.frame), button.showTopicWidth, kTopicHeight);}} else {button.frame CGRectMake(originX, originY, button.showTopicWidth, kTopicHeight);}if (CGRectGetMaxY(button.frame) maxHeight) {button.hidden YES;} else {button.hidden NO;}lastButton button;}}
}- (void)setupRmdTopicViews {for (UIView *subView in self.topicBKImageView.subviews) {if ([subView isKindOfClass:[INRmdTopicButton class]]) {[subView removeFromSuperview];}}for (NSInteger index 0; index 15; index ) {INRmdTopicButton *button [[INRmdTopicButton alloc] initWithFrame:CGRectZero];button.tag index;[self.topicBKImageView addSubview:button];if (index % 5 0) {button.topicName #读书交流;} else if (index % 5 1) {button.topicName #爱手工生活;} else if (index % 5 2) {button.topicName #精致的佛系生活;} else if (index % 5 3) {button.topicName #数码发烧友;} else if (index % 5 4) {button.topicName #晒晒你的心情;} else {button.topicName #说说身边事;}button.showTopicWidth [INRmdTopicButton topicWidth:button.topicName];}[self setNeedsLayout];
}- (void)setSelected:(BOOL)selected animated:(BOOL)animated {[super setSelected:selected animated:animated];// Configure the view for the selected state
} (CGFloat)cellHeight {return kCellHeight;
}#pragma mark - Actions
- (void)exchangeButtonAction {}#pragma mark - SETTER/GETTER
- (UIImageView *)backImageView {if (!_backImageView) {_backImageView [[UIImageView alloc] initWithFrame:CGRectZero];_backImageView.userInteractionEnabled YES;_backImageView.backgroundColor [UIColor whiteColor];_backImageView.layer.cornerRadius 2.0;_backImageView.layer.shadowColor [UIColor colorWithHexString:9bb9ef].CGColor;_backImageView.layer.shadowOffset CGSizeMake(0, 3);_backImageView.layer.shadowOpacity 0.3;_backImageView.layer.shadowRadius 3.0;}return _backImageView;
}- (UIImageView *)contentBGImageView {if (!_contentBGImageView) {_contentBGImageView [[UIImageView alloc] initWithFrame:CGRectZero];_contentBGImageView.userInteractionEnabled YES;_contentBGImageView.backgroundColor [UIColor whiteColor];_contentBGImageView.layer.cornerRadius 2.0;_contentBGImageView.layer.masksToBounds YES;_contentBGImageView.clipsToBounds YES;}return _contentBGImageView;
}- (UIImageView *)topicBKImageView {if (!_topicBKImageView) {_topicBKImageView [[UIImageView alloc] initWithFrame:CGRectZero];_topicBKImageView.userInteractionEnabled YES;_topicBKImageView.backgroundColor [UIColor whiteColor];_topicBKImageView.clipsToBounds YES;}return _topicBKImageView;
}- (UILabel *)titleLabel {if (!_titleLabel) {_titleLabel [[UILabel alloc] initWithFrame:CGRectZero];_titleLabel.font [UIFont systemFontOfSize:18];_titleLabel.textColor [UIColor colorWithHexString:131619];_titleLabel.backgroundColor [UIColor clearColor];_titleLabel.text 热门话题;}return _titleLabel;
}- (UILabel *)tipsLabel {if (!_tipsLabel) {_tipsLabel [[UILabel alloc] initWithFrame:CGRectZero];_tipsLabel.font [UIFont systemFontOfSize:12];_tipsLabel.textColor [UIColor colorWithHexString:9a9b9c];_tipsLabel.backgroundColor [UIColor clearColor];_tipsLabel.numberOfLines 0;_tipsLabel.textAlignment NSTextAlignmentCenter;_tipsLabel.text 松\n开\n换\n一\n换;}return _tipsLabel;
}- (UIButton *)exchangeButton {if (!_exchangeButton) {_exchangeButton [UIButton buttonWithType:UIButtonTypeCustom];[_exchangeButton setImage:[UIImage imageNamed:ic_topic_exchange] forState:UIControlStateNormal];[_exchangeButton addTarget:self action:selector(exchangeButtonAction) forControlEvents:UIControlEventTouchUpInside];}return _exchangeButton;
}#pragma mark - panGestureHandle
- (void)panGestureHandle:(UIPanGestureRecognizer *)pan{if (pan.state UIGestureRecognizerStateBegan) {NSLog(UIGestureRecognizerStateBegan);self.startPoint [pan translationInView:self];} if (pan.state UIGestureRecognizerStateChanged) {NSLog(UIGestureRecognizerStateChanged);CGPoint point [pan translationInView:self];CGFloat xDistance point.x - self.startPoint.x;// 左右滑动NSLog(左右滑动);if (xDistance 0) {NSLog(向右滑动);CGRect backFrame self.topicBKImageView.frame;backFrame.origin.x kMidPadding;self.topicBKImageView.frame backFrame;} else {NSLog(向左滑动);CGRect backFrame self.topicBKImageView.frame;backFrame.origin.x kMidPadding xDistance*0.5;self.topicBKImageView.frame backFrame;}} else {// if (pan.state UIGestureRecognizerStateEnded || pan.state UIGestureRecognizerStateCancelled || pan.state UIGestureRecognizerStateFailed)NSLog(UIGestureRecognizerStateEnded);CGRect backFrame self.topicBKImageView.frame;backFrame.origin.x kMidPadding;[UIView animateWithDuration:0.55 delay:0.0 usingSpringWithDamping:0.5 initialSpringVelocity:7.0 options:UIViewAnimationOptionCurveEaseInOut animations:^{self.topicBKImageView.frame backFrame;} completion:^(BOOL finished) {}];}
}-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {return YES;
}end三、小结
iOS开发-实现热门话题标签tag显示控件 话题标签tag显示非常常见如选择你的兴趣选择关注的群超话话题等等。
学习记录每天不停进步。
