iOS textfild 左/右侧添加图标

UIImageView *imgView =[[UIImageView alloc]initWithImage:[UIImage imageNamed:@"icon"]];

//最左侧加图片是以下代码

_textField.leftView = imgView;

_textField.leftViewMode = UITextFieldViewModeAlways;

//最右侧加图片是以下代码

//_textField.rightView = imgView;

//_textField.rightViewMode = UITextFieldViewModeAlways;