yutaotst的专栏

iOS textView 限制字数1.在viewdidload中添加一个默认字体的lableplaceHoderLable = [[UILabel alloc]initWithFrame:CGRectMake(3, 3, DeviceWidth-6, 40)];//根据情况调节位置placeHoderLable.enabled = NO;placeHoderLable.text =

##在button的点击触发方法里面调用这个- (void)verifyEvent方法就可以实现倒计时- (void)verifyEvent{    //启动倒计时    [selfperformSelector:@selector(reflashGetKeyBt:)withObject:[NSNumbernumberWithInt:60] afte

////  UIView+Extnesion.h//  GuiguziFoot////  Created by LANJIE on 16/5/10.//  Copyright © 2016年 俞涛涛. All rights reserved.//#import @interface UIView (

- (void)viewDidLoad {    [superviewDidLoad];//    self.hidesBottomBarWhenPushed=YES;        [selfsetupDevice];//扫描二维码地方法}- (void)setupDevice{    //获取摄像设备    AVCapture

NSString *allString = [NSStringstringWithFormat:@"tel:1008611"];    UIAlertController *alertController=[UIAlertControlleralertControllerWithTitle:@"拨打电话"message: allString preferredStyle:(UI

NSString *labelString =@"据冯梦龙比较严肃、真实的历史小说《东周列国志》记述，周之阳城地界，有一个山谷，山深树密，幽不可测，不是人所能居住的地方，所以叫“鬼谷”。谷中居有一位隐者，自号鬼谷子，相传是晋平公时人，姓王名诩";        // 调整行间距    NSMutableAttributedString *attributedString

//去掉UItableview headerview黏性(sticky)- (void)scrollViewDidScroll:(UIScrollView *)scrollView {   if (scrollView == self.tableView)    {       CGFloat sectionHeaderHeight = 49; //这里是headV