iOS---textfield设置为只有下划线,并且左边有图片

self.phoneField.font
= [UIFont
systemFontOfSize:15];

self.phoneField.placeholder =@"请输入";

// 通过init来创建初始化绝大部分控件，控件都是没有尺寸

UIImageView *icon = [[UIImageViewalloc]
init];

icon.image = [UIImageimageNamed:@"phone"];

icon.width =30;

icon.height =30;

icon.contentMode =UIViewContentModeCenter;

self.phoneField.leftView =icon;

self.phoneField.leftViewMode
= UITextFieldViewModeAlways;

/** ---------------------------------------------------------------------------*/

//设置无边框(可以直接在sb中设置)

// self.phoneField.borderStyle = UITextBorderStyleNone;

//手机号

self.phoneField.font
= [UIFont
systemFontOfSize:15];

self.phoneField.placeholder =
@"请输入手机号";

UIView *line=[[UIView
alloc]initWithFrame:CGRectMake(0,self.phoneField.height-2,
self.phoneField.width,
1)];

line.backgroundColor=[UIColor
lightGrayColor];

[self.phoneField
addSubview:line];

// 通过init来创建初始化绝大部分控件，控件都是没有尺寸

UIImageView *searchIcon = [[UIImageView
alloc] init];

searchIcon.image = [UIImage
imageNamed:@"phone"];

searchIcon.width =
30;

searchIcon.height =
30;

searchIcon.contentMode =
UIViewContentModeCenter;

self.phoneField.leftView = searchIcon;

self.phoneField.leftViewMode
= UITextFieldViewModeAlways;

//密码

self.pwdField.font
= [UIFont
systemFontOfSize:15];

self.pwdField.placeholder =
@"请输入密码";

UIView *line2=[[UIView
alloc]initWithFrame:CGRectMake(0,self.pwdField.height-1,
self.pwdField.width,
1)];

line2.backgroundColor=[UIColor
lightGrayColor];

[self.pwdField
addSubview:line2];

// 通过init来创建初始化绝大部分控件，控件都是没有尺寸

UIImageView *searchIcon2 = [[UIImageView
alloc] init];

searchIcon2.image = [UIImage
imageNamed:@"pwd"];

searchIcon2.width =
30;

searchIcon2.height =
30;

searchIcon2.contentMode =
UIViewContentModeCenter;

self.pwdField.leftView = searchIcon2;

self.pwdField.leftViewMode
= UITextFieldViewModeAlways;