在实际开发中，搜索框的样式多种多样，iOS 中原生的搜索框有许多UI 会进行修改。所以在项目中，自己进行自定义，你会用到的额。直接用吧。更多文章，也可以关注新浪博客http://blog.sina.com.cn/resoftios。
//
// ZJSearchBar.h
// ZJSearchBar
//
// Created by张建on2017/4/22.
// Copyright © 2017年张建. All rightsreserved.
//
#import
//自定义UISearchBar,方便项目中的使用。后续可自行进行功能添加。
@interfaceZJSearchBar :UISearchBar
//搜索框
@property(nonatomic,strong)UITextField*searchBarTF;
//搜索框的背景，默认是灰色哦。系统色.是否隐藏显示
@property(nonatomic,assign)BOOLhideSearchBarBackgroundImage;
//输入框中自定义的光标颜色
@property(nonatomic,strong)UIColor*cursorColor;
//输入框中清除按钮的图片
@property(nonatomic,strong)UIImage*clearButtonImage;
//取消按钮(当showCancleButton= YES时，才可以得到)
@property(nonatomic,strong)UIButton*cancleButton;
//设置输入框中🔍和提示文字是否居中。（NO是不居中）
@property(nonatomic,assign,setter=setHasCentredPlaceholder:)BOOLhasCentredPlaceholder;
//
// ZJSearchBar.m
// ZJSearchBar
//
// Created by张建on2017/4/22.
// Copyright © 2017年张建. All rightsreserved.
//
#import"ZJSearchBar.h"
@implementationZJSearchBar
//设置输入框
-(UITextField*)searchBarTF{
//获取输入框
_searchBarTF=[selfvalueForKey:@"searchField"];
return_searchBarTF;
}
//设置输入框中的光标的颜色，可以自定义的哦
-(void)setCursorColor:(UIColor*)cursorColor{
if(cursorColor){
_cursorColor=cursorColor;
//1.获取输入框
UITextField*searchField =self.searchBarTF;
if(searchField){
//2.光标颜色
[searchFieldsetTintColor:cursorColor];
}
}
}
//设置清除按钮的图标
-(void)setClearButtonImage:(UIImage*)clearButtonImage{
if(clearButtonImage){
_clearButtonImage=clearButtonImage;
//1.获取输入框
UITextField*searchField =self.searchBarTF;
if(searchField){
//清除按钮的图片
UIButton*button =[searchFieldvalueForKey:@"_clearButton"];
[buttonsetImage:clearButtonImageforState:UIControlStateNormal];
searchField.clearButtonMode=UITextFieldViewModeWhileEditing;
}
}
}
//隐藏背景图
-(void)setHideSearchBarBackgroundImage:(BOOL)hideSearchBarBackgroundImage{
if(hideSearchBarBackgroundImage){
_hideSearchBarBackgroundImage=hideSearchBarBackgroundImage;
self.backgroundImage=[[UIImagealloc]init];
}
}
//获取取消的按钮
-(UIButton*)cancleButton{
self.showsCancelButton=YES;
for(UIView*viewin[[self.subviewslastObject]subviews]){
if([viewisKindOfClass:[UIButtonclass]]){
_cancleButton=(UIButton*)view;
}
}
return_cancleButton;
}
-(instancetype)initWithFrame:(CGRect)frame
{
if((self=[superinitWithFrame:frame]))
{
self.hasCentredPlaceholder=YES;
}
returnself;
}
//设置搜索框中搜索🔍和提示文字的位置（居左）
-(void)setHasCentredPlaceholder:(BOOL)hasCentredPlaceholder
{
_hasCentredPlaceholder=hasCentredPlaceholder;
SELcenterSelector=NSSelectorFromString([NSStringstringWithFormat:@"%@%@",@"setCenter",@"Placeholder:"]);
if([selfrespondsToSelector:centerSelector])
{
NSMethodSignature*signature =[[UISearchBarclass]instanceMethodSignatureForSelector:centerSelector];
NSInvocation*invocation =[NSInvocationinvocationWithMethodSignature:signature];
[invocationsetTarget:self];
[invocationsetSelector:centerSelector];
[invocationsetArgument:&_hasCentredPlaceholderatIndex:2];
[invocationinvoke];
}
}
