//1、 UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(30, 100, 260, 40)]; //2、 // textField.backgroundColor = [UIColor redColor]; //属性 //设置文字颜色：textColor textField.textColor = [UIColor redColor]; //边框状态：borderStyle /* 1、UITextBorderStyleRoundedRect 圆角 2、UITextBorderStyleLine 黑色直角边框 3、UITextBorderStyleBezel 灰色直角边框 4、UITextBorderStyleNone 无边框 */ textField.borderStyle = UITextBorderStyleRoundedRect; //文字水平对齐：textAlignment 默认左对齐 textField.textAlignment = NSTextAlignmentLeft; //文字垂直对齐：contentVerticalAlignment 默认居中 textField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter; //设置字号：font textField.font = [UIFont systemFontOfSize:20.0]; //自适应文字大小:adjustsFontSizeToFitWidth textField.adjustsFontSizeToFitWidth = YES; //设置最小字号：minimumFontSize textField.minimumFontSize = 20.0; //默认文字：text textField.text = @"hello world”; //提示文字:placeholder textField.placeholder = @"请输入账号"; //密文：secureTextEntry textField.secureTextEntry = NO; //输入框是否可用：enabled textField.enabled = YES; //return键的类型:returnKeyType /* 1、UIReturnKeyDefault return 2、UIReturnKeyDone Done 3、UIReturnKeyEmergencyCall EmergencyCall 4、UIReturnKeyGoogle=UIReturnKeyYahoo=UIReturnKeySearch Search 5、UIReturnKeyJoin Join . . . */ textField.returnKeyType = UIReturnKeyJoin; //键盘类型：keyboardType /* 1、UIKeyboardTypeDefault 数字，符号，中英文 2、UIKeyboardTypeNumberPad 数字键盘 3、UIKeyboardTypeWebSearch 网址 . 4、UIKeyboardTypeURL .com / . 5、UIKeyboardTypeEmailAddress @ . 6、UIKeyboardTypeNumbersAndPunctuation 数字 符号 . . . */ textField.keyboardType = UIKeyboardTypeDefault; //键盘颜色:keyboardAppearance /* 1、UIKeyboardAppearanceDefault=UIKeyboardAppearanceLight 浅灰色 2、UIKeyboardAppearanceAlert=UIKeyboardAppearanceDark 深灰色 */ textField.keyboardAppearance = UIKeyboardAppearanceDefault; //背景图片：background 当边框状态为圆角时，背景图片无效 textField.background = [UIImage imageNamed:@"map.png"]; //一键清除按钮:clearButtonMode /* 1、UITextFieldViewModeAlways 一直出现 2、UITextFieldViewModeNever 永不出现 3、UITextFieldViewModeWhileEditing 输入框编辑文字时出现，不编辑时消失 4、UITextFieldViewModeUnlessEditing 输入框编辑文字时消失，不编辑时出现 */ textField.clearButtonMode = UITextFieldViewModeUnlessEditing; //再次编辑是否清空之前的文字：clearsOnBeginEditing YES：清空 textField.clearsOnBeginEditing = YES; //是否自动大写：autocapitalizationType /* 1、UITextAutocapitalizationTypeAllCharacters 所有字母都大写 2、UITextAutocapitalizationTypeNone 所有字母都不大写 3、UITextAutocapitalizationTypeSentences 每个句子的首字母大写 4、UITextAutocapitalizationTypeWords 每个单词的首字母大写 */ textField.autocapitalizationType = UITextAutocapitalizationTypeWords; //是否自动纠错：autocorrectionType /* 1、UITextAutocorrectionTypeDefault 默认 2、UITextAutocorrectionTypeNo 不纠错 3、UITextAutocorrectionTypeYes 纠错 */ textField.autocorrectionType = UITextAutocorrectionTypeYes; //设置左视图:leftView //设置位置无效 UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 40, 40)]; view.backgroundColor = [UIColor redColor]; textField.leftView = view; //左视图出现状态:leftViewMode textField.leftViewMode = UITextFieldViewModeAlways; //设置右视图：rightView UIView *view2 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 40, 40)]; view2.backgroundColor = [UIColor yellowColor]; // textField.rightView = view2; //右视图出现状态:rightViewMode // textField.rightViewMode = UITextFieldViewModeAlways; //不同的位置，不能用相同的view //键盘上面的view:inputAccessoryView UIView *view3 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 40)]; view3.backgroundColor = [UIColor purpleColor]; textField.inputAccessoryView = view3; //获取输入框里面的文字:textField.text NSString *str = textField.text; NSLog(@"%@",str); /**************!!!!!!delegate!!!!!!!*************/ textField.delegate = self; [textField becomeFirstResponder]; //3、 [self.view addSubview:textField]; #pragma mark - UITextFieldDelegate //return键的方法 ***** - (BOOL)textFieldShouldReturn:(UITextField *)textField{ //输入框失去响应：键盘收回，光标消失 [textField resignFirstResponder]; //输入框开始响应：键盘出现，光标出现 // [textField becomeFirstResponder]; return YES; } //一键删除按钮的方法 - (BOOL)textFieldShouldClear:(UITextField *)textField{ //返回YES：一键删除有效 返回NO：一键删除无效 if ([textField.text isEqualToString:@"123"]) { return NO; } return YES; } //输入框是否可以开始编辑 - (BOOL)textFieldShouldBeginEditing:(UITextField *)textField{ return YES; } //输入框是否可以结束编辑 ** - (BOOL)textFieldShouldEndEditing:(UITextField *)textField{ if (textField.text.length < 11) { return NO; } return YES; } //输入框开始响应就调用的方法 **** - (void)textFieldDidBeginEditing:(UITextField *)textField{ NSLog(@"textFieldDidBeginEditing"); } //输入框结束响应就调用的方法 **** - (void)textFieldDidEndEditing:(UITextField *)textField{ NSLog(@"textFieldDidEndEditing"); } //页面跳转 //第一个参数：即将跳转的页面 //第二个参数：带不带动画效果 //第三个参数：跳转结束后所做的操作 //实例化第二个页面 SecondViewController *second = [[SecondViewController alloc] init]; //跳转的操作：从下向上出现 [self presentViewController:second animated:YES completion:^{ // NSLog(@"second"); }]; //返回上一页:从上向下消失 [self dismissViewControllerAnimated:YES completion:^{ // }]; //页面生命周期 //页面即将出现 - (void)viewWillAppear:(BOOL)animated{ [super viewWillAppear:animated]; NSLog(@"1"); } //页面已经出现 - (void)viewDidAppear:(BOOL)animated{ [super viewDidAppear:animated]; NSLog(@"2"); } //页面即将消失 - (void)viewWillDisappear:(BOOL)animated{ [super viewWillDisappear:animated]; NSLog(@"3"); } //页面已经消失 - (void)viewDidDisappear:(BOOL)animated{ [super viewDidDisappear:animated]; NSLog(@"4"); }