IOS小技巧

隐藏NavigationBackButton

[self.navigationItem setHidesBackButton:YES];

隐藏tabbar

    self.hidesBottomBarWhenPushed = YES;

将网址中的文字转换

    NSString *erro = @"错误";    NSString *str = [erro stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];    NSLog(@"%@",str);

隐藏TableView的横线

    self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;

iOS适配

#define IPHONE_DEVCIE_NAME ([[UIScreen mainScreen]bounds].size.height>480?5:4)#define IPHONE_DEVCIE_SYSTEMVERSION ([[[UIDevice currentDevice]systemVersion]floatValue]>7.0?YES:NO)

打电话：/打开网站

[UIApplication sharedApplication]openURL URlWithString:@“tel://18511216618”]

解决iOS6TableView在分组时不能更改背景颜色

    self.tableView.backgroundView = [[UIView alloc]init];    self.tableView.backgroundView.backgroundColor = [UIColor redColor];