UISearchBar 改變背景+切圓角+改高度

直接上代碼

- (UISearchBar *)searchBar {
    if (!_searchBar) {
        _searchBar = [[UISearchBar alloc]initWithFrame:CGRectMake(46, 6 +JX_STATUS_Height, JX_SCREEN_WIDTH-95, 32)];
        _searchBar.delegate = self;
        _searchBar.placeholder = @"查找視頻、用戶和商品";
        
        /* 以下是核心代碼*/
        //設(shè)置TextField高度
        [_searchBar setSearchFieldBackgroundImage:[self GetImageWithColor:JX_LightTextfieldColorF5F5F5 andHeight:32] forState:UIControlStateNormal];
        //去除上下邊線
        [_searchBar setSearchBarStyle:UISearchBarStyleMinimal];
        
        //搜索框樣式
        UITextField  *seachTextFild;;
        if (@available(iOS 13.0, *)) {
            seachTextFild = _searchBar.searchTextField;
        }else{
            seachTextFild = [_searchBar valueForKey:@"_searchField"];
        }
        seachTextFild.layer.cornerRadius = 16.0;
        seachTextFild.layer.masksToBounds = YES;
    }
    return _searchBar;
}

- (UIImage*)GetImageWithColor:(UIColor*)color andHeight:(CGFloat)height
{
    CGRect r= CGRectMake(0.0f,0.0f,1.0f, height);

    UIGraphicsBeginImageContext(r.size);

    CGContextRef context = UIGraphicsGetCurrentContext();

    CGContextSetFillColorWithColor(context, [color CGColor]);

    CGContextFillRect(context, r);

    UIImage *img = UIGraphicsGetImageFromCurrentImageContext();

    UIGraphicsEndImageContext();

    return img;

}

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