libsystem_darwin.dylib for architecture x86_64

Posted on 2018-05-31 10:09

sudo xcode-select -s /Library/Developer/CommandLineTools

Untitled

Posted on 2018-05-31 10:00

title: ios-文件下载与分享
urlname: ios-file-download-and-share
date: 2017-12-22 09:50
updated: 2017-12-22 09:50
tags:

-(void)download {
        [SVProgressHUD showWithStatus:@"正在下载文件"];

        NSURL *url = [NSURL URLWithString:self.currentRoute];
        NSURLSession *session = [NSURLSession sharedSession];
        NSURLSessionTask *task = [session dataTaskWithURL:url completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
        //将下载后的数据存入文件(lastObject 无数据返回nil，不会导致程序崩溃)
        _filePath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
        NSString* name = [_fileName stringByAppendingString:@".pdf"];
        _filePath = [_filePath stringByAppendingPathComponent:name];
        NSLog(@"%@",_filePath);
        
        //将下载的二进制文件转成入文件
        NSFileManager *manager = [NSFileManager defaultManager];
        BOOL isDownLoad =  [manager createFileAtPath:_filePath contents:data attributes:nil];
          [Loading hide];
        if (isDownLoad) {
            [SVProgressHUD  showSuccessWithStatus:@"下载完成"];
        }else{
            [SVProgressHUD  showErrorWithStatus:@"下载失败，请重试"];
        }
          [SVProgressHUD dismissWithDelay:1];
    }];
    //开始下载 否则不会开始
    [task resume];
}

-(void)sharePDF{
    //创建实例(写成成员变量，不然可能导致分享出去被释放崩溃问题)
    _documentController = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:_filePath]];
    //设置代理
    _documentController.delegate = self;
    BOOL canOpen = [_documentController presentOpenInMenuFromRect:CGRectZero inView:self.view animated:YES];
    if (!canOpen) {
        NSLog(@"沒有程序可以打開要分享的文件");
        [Loading showLoginFail:_webview for:@"沒有程序可以打開要分享的文件"];
         [SVProgressHUD dismissWithDelay:1];
    }
}

css-bootstrap table-stripe reverse

Posted on 2018-05-28 15:00

.table-striped > tbody > tr:nth-of-type(odd) {
background: #fff !important;
}
.table-striped > tbody > tr:nth-of-type(even) {
background: #f9f9f9 !important;
}

ruby-position 排序

Posted on 2018-05-27 14:19

1.gem ‘acts_as_list’

2.model

1	acts_as_list

3.controller

up
@recruit_info.move_higher

down
@recruit_info.move_lower  

top
@recruit_info.move_to_top

bottom
@recruit_info.move_to_bottom

4.view
一般置顶最末会刷新页面
上移下移用js

<%= link_to content_tag(:i, "", class: "fa fa-arrow-up"), "javascript:;", method: :post,
                     class: "info-up", data: { id: recruit_info.id, url: up_comp_recruit_info_path(recruit_info),
                     toggle: "popover", placement: "top", content: "上移" } %>
         <%= link_to content_tag(:i, "", class: "fa fa-arrow-down"), "javascript:;", method: :post,
                     class: "info-down", data: { id: recruit_info.id, url: down_comp_recruit_info_path(recruit_info),
                     toggle: "popover", placement: "top", content: "下移" } %>
         <%= link_to content_tag(:i, "", class: "fa fa-arrow-circle-up"), top_comp_recruit_info_path(recruit_info),
                     method: :post, class: "info-top", data: { toggle: "popover", placement: "top", content: "置顶" } %>
         <%= link_to content_tag(:i, "", class: "fa fa-arrow-circle-down"), bottom_comp_recruit_info_path(recruit_info),
                     method: :post, class: "info-bottom", data: { toggle: "popover", placement: "top", content: "最末" } %> |

<script type="text/javascript">

  $prevLink = $('.pagination').find('.active').prev().find('a').attr('href');
  $nextLink = $('.pagination').find('.active').next().find('a').attr('href');

  $('.info-up').on('click', function(){
      const pageFirst = $('.recruit-info-item').first();
      $page = $(this).closest('.recruit-info-item');
      $.ajax({
          url: $(this).data('url'),
          type: 'POST',
          data: {
            id: $(this).data('id')
          },
          success: function() {
              if ($page.is(pageFirst)) {
                if (<%= @recruit_infos.current_page %> === 1) {
                  $.notify('不可上移！！','error')
                } else {
                  window.location.href = $prevLink
                }
              } else {
                  $page.prev().before($page);
              }
          }
      });
  });

  $('.info-down').on('click', function(){
      const pageLast = $('.recruit-info-item').last();
      $page = $(this).closest('.recruit-info-item');
      $.ajax({
          url: $(this).data('url'),
          type: 'POST',
          data: {
            id: $(this).data('id')
          },
          success: function() {
              if ($page.is(pageLast)) {
                  if (<%= @recruit_infos.total_pages == @recruit_infos.current_page %>) {
                    $.notify('不可下移！！','error')
                  } else {
                    window.location.href = $nextLink
                  }
              } else {
                  $page.next().after($page);
              }
          }
      });
  });
</script>

ps: 必须有position字段如果是后加的在migration文件中需要

1
2
3

ExampleCv.order(updated_at: :desc).each.with_index(1) do |todo_item, index|
  todo_item.update_column :position, index
end

微信小程序-获取小程序二维码

Posted on 2018-05-25 17:34

def miniProgramQR
 res = RestClient.get 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid='+ ENV['WECHAT_MINIPROGRAM_APP_ID'] + '&secret=' + ENV['WECHAT_MINIPROGRAM_APP_SECRECT']
  json = JSON.parse res.body
  access_token = json['access_token']
  miniProgram_image = RestClient.post 'https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=' + access_token, {'page': 'pages/cvShare/cvShare', 'scene': @cv.token}.to_json, {content_type: :json, accept: :json}
  image = Base64.encode64 miniProgram_image
 render json: {
    image: image
  }
end

ps: scene 最大32位可以用’type:’ + params[:file_type] +’,id:’ + params[:token]这种字符串然后在小程序中用js分割，不可以用json格式、也不可以用to_s

显示用$(‘.qr-code’).attr(‘src’, “data:image/jpeg;base64,” + data[‘image’])

ruby-ascii-8bit 转image

Posted on 2018-05-25 11:33

1.将data转成base64编码用Base64.encode64 data

2.用data_uri的方法将base64编码展示出来

“data:image/jpeg;base64,data”

data uri scheme

js-data传参键名是变量不能识别

Posted on 2018-05-23 16:16

const fileData= {};
fileData[fileType] = data;

ps: 一定要注意在里面写的时候data: fileData 这么传值！

js-判断页面是否加载完成

Posted on 2018-05-22 17:12

对于页面来说，dom结构，样式,脚本也属于内容，页面内的图片文字视频音频也是内容。

那么我们常用的 window.onload和 jquery 中的 ready 函数就能判断内容是否全部加载完成吗？答案是否定的。以上两个只能判定页面骨架加载完成了，但是不能判定页面资源是否加载完成，比如页面的超大图片，视频等。还有如果是有异步请求的资源等都无法检测到的，尤其是在 onload 之后发生的请求。

onreadystatechange回调不行，原因：每当有请求发生时 readyState 都会改变并触发 onreadystatechange

如果需要动态处理 dom 那么在 onload|ready 中就可以了，因为此时页面 dom 已经加载完成了。如果你需要对某些异步的请求做监控，则只需要在对应的异步中添加上回调即可。

if(document.readyState == “complete”) //当页面加载状态 



window.onload页面(包括资源)准备就绪

document.onloadDOM加载完毕

微信小程序-iphonx适配

Posted on 2018-05-22 11:17

在app.js文件中创建全局变量，然后获取设备型号

globalData: {  
  isIphoneX: false,  
  userInfo: null  
},  
onShow:function(){  
  let  that = this;  
  wx.getSystemInfo({  
    success:  res=>{  
      // console.log('手机信息res'+res.model)  
      let modelmes = res.model;  
      if (modelmes.search('iPhone X') != -1) {  
        that.globalData.isIphoneX = true  
      }  
  
    }  
  })  
    
},

在需要引用的页面js文件中onload方法里获取全局变量

let isIphoneX = app.globalData.isIphoneX;
    this.setData({
      isIphoneX: isIphoneX
    })

ps:button 的边框用button::after{ border: none; }来去除

redis-数据缓存

Posted on 2018-05-17 11:12

gem ‘redis-namespace’
bundle
新建文件 config/initializers/redis.rb

1	$redis = Redis::Namespace.new("site_point", :redis => Redis.new)

存 $redis.set(“test_key”, “Hello World!”)
取 $redis.get(“test_key”)
删 $redis.del “categories”

参考