代理

输入栏垂直居中

  textField.contentVerticalAlignment=UIControlContentVerticalAlignmentCenter;

左边的view

  UITextField *textField=[[UITextField alloc]initWithFrame:CGRectMake(100, 200, 200, 30)];    textField.contentVerticalAlignment=UIControlContentVerticalAlignmentCenter;    UILabel *leftLabel=[[UILabel alloc]initWithFrame:CGRectMake(0, 0, 60, 30)];    leftLabel.font=[UIFont systemFontOfSize:13.0];    leftLabel.text=@"提现金额";    textField.leftView=leftLabel;    textField.leftViewMode=UITextFieldViewModeAlways;    textField.placeholder=@"请输入";    [self.view addSubview:textField];

参考资料：

UITextField垂直居中对齐