自定义搜索框---ZJSearchBar

//

//  ZJSearchBar.h

//  ZJSearchBar

//

//  Created by 张建 on 2017/4/22.

//  Copyright © 2017年张建. All rights reserved.

//

#import <UIKit/UIKit.h>

//自定义UISearchBar,方便项目中的使用。后续可自行进行功能添加。

@interface ZJSearchBar : 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)BOOL hideSearchBarBackgroundImage;

//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:) BOOL hasCentredPlaceholder;

#import "ZJSearchBar.h"

@implementation ZJSearchBar

//设置输入框
- (UITextField *)searchBarTF{
    
    //获取输入框
    _searchBarTF = [self valueForKey:@"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
            [searchField setTintColor: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 = [searchField valueForKey:@"_clearButton"];
            [button setImage:clearButtonImage forState:UIControlStateNormal];
            searchField.clearButtonMode = UITextFieldViewModeWhileEditing;
        }
    }

}

//隐藏背景图
- (void)setHideSearchBarBackgroundImage:(BOOL)hideSearchBarBackgroundImage{
    
    if (hideSearchBarBackgroundImage) {
        _hideSearchBarBackgroundImage = hideSearchBarBackgroundImage;
        self.backgroundImage = [[UIImage alloc]init];
    }
    
}

//获取取消的按钮
- (UIButton *)cancleButton{
    
    self.showsCancelButton = YES;
    for (UIView *view in [[self.subviews lastObject]subviews]) {
        if ([view isKindOfClass:[UIButton class]]) {
            _cancleButton = (UIButton *)view;
        }
    }
    return _cancleButton;

}

- (instancetype)initWithFrame:(CGRect)frame
{
    if ((self = [super initWithFrame:frame]))
    {
        self.hasCentredPlaceholder = YES;
    }
    return self;
}

//设置搜索框中搜索