About SFVerificationCodeView,实现iOS本地生成随机验证码, 从服务器读取并生成验证码 验证码其

SFVerificationCodeView ============== SFVerificationCodeView,实现iOS本地生成随机验证码, 从服务器读取并生成验证码 验证码其实主要用来防止机器人恶意注册与登陆，基本用于web网页端  ## XIB拖拽方式 ``` //设置验证码生成模式 服务器端生成验证码 self.codeView.mode = SFVerificationCodeModeServer; [self.codeView willChangeVerificationCode:^(SFVerificationCodeMode mode) { NSLog(@"请求服务器生成code"); [self getData:nil completion:^(NSDictionary *dict) { self.codeView.code = [dict objectForKey:@"code"]; }]; }]; [self.codeView didChangeVerificationCode:^(NSString *code) { NSLog(@"self.codeView code:%@",code); }]; //开始生成code [self.codeView generateVerificationCode]; //模拟异步从后台接口请求验证码 - (void)getData:(id)data completion:(void (^)(NSDictionary *dict))completion{ //网络请求 NSString *code = [NSString stringWithFormat:@"server%zd",arc4random() % 100]; NSDictionary *dict = @{@"code":code}; completion(dict); } ``` ## 代码方式 ``` //设置验证码生成模式 本地生成验证码 view.mode = SFVerificationCodeModeLocal; [view willChangeVerificationCode:^(SFVerificationCodeMode mode) { NSLog(@"本地随机生成code"); }]; [view didChangeVerificationCode:^(NSString *code) { NSLog(@"view code:%@",code); }]; //开始生成code [view generateVerificationCode]; ```