设置子串是不同的颜色
/**
设置子串是不同的颜色
@param color 颜色
@param allStr 父串
@param subString 子串
@return 带颜色的父串
*/
-(NSMutableAttributedString *)setSubColor:(UIColor *)color : (NSString *)allStr : (NSString *)subString{
NSMutableAttributedString *noteStr = [[NSMutableAttributedString alloc] initWithString:allStr];
NSRange redRange = NSMakeRange([[noteStr string] rangeOfString:subString].location, [[noteStr string] rangeOfString:subString].length);
//需要设置的位置
[noteStr addAttribute:NSForegroundColorAttributeName value:color range:redRange];
//设置颜色
return noteStr;
}
NSString *all = @"该区域共0条相关资源";
self.statisticsGoogsLable.attributedText = [all setSubColor:[UIColor redColor] :all :@"0"];
iOS使用NSMutableAttributedString实现富文本小结https://www.jianshu.com/p/583417467e94
NSMutableAttributedString *mutableString = [[NSMutableAttributedString alloc]initWithString:totalFee];
[mutableString addAttribute:NSFontAttributeName
value:[UIFont systemFontOfSize:21.0]
range:NSMakeRange(3, totalFee.length - 3)];//设置字体
[mutableString addAttribute:NSForegroundColorAttributeName
value:[UIColor redColor]
range:NSMakeRange(3, totalFee.length - 3)];//设置颜色
[mutableString addAttribute:NSUnderlineStyleAttributeName
value:[NSNumber numberWithInteger:NSUnderlineStyleSingle]
range:NSMakeRange(0, totalFee.length)];//添加下划线
sumLabel.attributedText = mutableString;
数字是特殊的颜色和字体
-(NSMutableAttributedString *)setGroupStr:(NSString *)content numColor:(UIColor *)numcolor otherColor:(UIColor *)otherolor fontSize:(CGFloat)size{
// 1首选初始化对象，正则表达式选取0到9的数字范围
NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"[^0-9]" options:0 error:nil];
// 2获取查询结果，得到的数组里面有一行文本中数字的范围
NSArray *numArr = [regex matchesInString:content options:0 range:NSMakeRange(0, [content length])];
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:content attributes:@{NSForegroundColorAttributeName:numcolor}];
[attributedString addAttribute:NSFontAttributeName value:[UIFont boldSystemFontOfSize:size ] range:NSMakeRange(0,[content length])];
// 3循环找到数字的范围用富文本来给这行文本赋值
for (NSTextCheckingResult *attirbute in numArr) {
[attributedString setAttributes:@{NSForegroundColorAttributeName:otherolor} range:attirbute.range];
}
return attributedString;
}
手势
UITapGestureRecognizer *labelTapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self
action:@selector(supplyLabelClick)];
// 2. 将点击事件添加到label上
[_supplyUILabel addGestureRecognizer:labelTapGestureRecognizer];
//图片添加手势,需要设置可交互
[imageView setUserInteractionEnabled:YES];
父控件背景半透明而其子控件不透明
view.backgroundColor = [UIColor colorWithWhite:0.5 alpha:0.3];
//还可以使用这个方法，可以设置其他颜色
colorWithRed:green:blue:alpha:
获取文字的宽高
CGSize pSize = [self.model.nickname sizeWithAttributes:@{NSFontAttributeName : Font_System_Regular(11)}];
加载xib
[[NSBundle mainBundle] loadNibNamed:@"selectExpressTitleView" owner:nil options:nil].lastObject
initWithFrame、initWithCoder、awakeFromNib
initWithFrame当控件不是从xib、storyboard中创建时，会调用这个方法
initWithCoder当控件是从xib、storyboard中创建时，会调用这个方法
awakeFromNib在initWithCoder:方法后调用
顺序是：initWithCoder -> awakeFromNib
通过frame加载xib
- (instancetype)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
self = [[[NSBundle mainBundle] loadNibNamed:@"selectExpressTitleView" owner:self options:nil] lastObject];
return self;
}
动画
tableView的动画效果，tableView逐渐显现，透明逐渐减少，这种动画方式必须要有改变的属性，比如透明的程度
self.OrderTable.alpha = 0;
[UIView animateWithDuration:1 animations:^{
self.OrderTable.alpha = 1;
[self.OrderTable reloadData];
}];
提示框Alert
UIAlertController* alert = [UIAlertController alertControllerWithTitle:@"提示"
message:@"您是否记得平台支付密码"
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:@"忘记了" style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {
//响应事件
VerifyPassword * verifyPassword = [[VerifyPassword alloc]init];
[self.navigationController pushViewController:verifyPassword animated:YES];
}];
UIAlertAction* cancelAction = [UIAlertAction actionWithTitle:@"记得" style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {
//响应事件
ChangePassword * changePassword = [[ChangePassword alloc]init];
[self.navigationController pushViewController:changePassword animated:YES];
}];
[alert addAction:defaultAction];
[alert addAction:cancelAction];
[[UIApplication sharedApplication].keyWindow.rootViewController presentViewController:alert animated:YES completion:nil];
只设置某个圆角
CAShapeLayer* shape = [[CAShapeLayer alloc] init];
[shape setPath:rounded.CGPath];
self.baseView.layer.mask = shape;
Button
设置按钮文字向左对齐，并且和左边有十个像素距离
btn1.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;
btn1.titleEdgeInsets = UIEdgeInsetsMake(0, 10, 0, 0);
按钮文字颜色设置
[btn setTitleColor:[UIColor blackColor]forState:UIControlStateNormal];
父子控制器
要添加控制器，已经控制器的view
NEWPageController *newpage = [[NEWPageController alloc]initWithModels:self.fModels];
newpage.view.frame = CGRectMake(0, 0, self.baseView.width, self.baseView.height);
[self addChildViewController:newpage];
[self.baseView addSubview:newpage.view];
显示长图
//根据原始图片比例计算控件高度
self.dailyPriceImage.bounds =CGRectMake(0, 0,self.dailyPriceImage.image.size.width, screenWidth/ (image.size.width/image.size.height)) ;
//根据原始图片比例计算约束高度
self.dailyPriceImageHeight.constant = screenWidth/ (image.size.width/image.size.height);
右滑之类的控件
constant控制布局，frame和alpha才能显示动画，constant改变不会动
[UIView animateWithDuration:0.3 animations:^{
self.shenfenHudViewLeading.constant = 0;
self.shenFenHudView.frame = CGRectMake(screenWidth, self.shenFenHudView.y, self.shenFenHudView.width, self.shenFenHudView.height);
self.shenfenTableview.alpha = 0;
}];