UITextField

UITextField:文本输入框

    // 创建一个textField
    UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(60, 40, 200, 30)];
    
    textField.backgroundColor = [UIColor lightGrayColor]; // 通常不设置
    textField.text = @"测试"; // 通常不设置
    
    textField.placeholder = @"手机号/邮箱"; // 背景显示内容
    textField.secureTextEntry = YES; // 密码模式
    textField.returnKeyType = UIReturnKeyGo; // 键盘右下角 return 换成go
    
    // 修改textField弹出来的视图，系统键盘(替换键盘 x y 宽 设置无用)
    textField.inputView = [[[UILabel alloc] initWithFrame:CGRectMake(0, 0, 0, 100)] autorelease];
    UIView *accessoryView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 30)];
    accessoryView.backgroundColor = [UIColor yellowColor]; // 透明色 clearColor
   textField.inputAccessoryView = accessoryView; // 添加辅助视图 紧挨键盘在其上面
    [accessoryView release];
    
    textField.borderStyle = UITextBorderStyleRoundedRect; // 边框
    
    textField.clearButtonMode = UITextFieldViewModeAlways; // 输入框右侧删除按钮
    
    // 给textField添加左视图
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 60, 30)];   
    label.text = @"用户名";
    textField.leftView = label;
    textField.leftViewMode = UITextFieldViewModeAlways; // 添加左视图
    [label release];
    
    // 自动首字母大写
    textField.autocapitalizationType = UITextAutocapitalizationTypeNone; // 关上
    
    // 自动修正功能
    textField.autocorrectionType = UITextAutocorrectionTypeNo; // 关上