actionview

<%= with a block in rails 4

烂漫一生 提交于 2020-07-03 09:39:40
问题 I'm trying to use a block in a helper, but that's giving me this error: SyntaxError - syntax error, unexpected ')' ...rbout.concat(( green_title do ).to_s); _erbout.concat "\n ... ... ^ (erb):4254: syntax error, unexpected end-of-input, expecting ')' ; _erbout.force_encoding(__ENCODING__) ^: (erb):1649:in `' here's how I'm calling it: <%= green_title do %> text <% end %> and here's my helper: def green_title(&block) capture do concat content_tag(:h3) do yeld end end end 回答1: Your block is

<%= with a block in rails 4

丶灬走出姿态 提交于 2020-07-03 09:39:39
问题 I'm trying to use a block in a helper, but that's giving me this error: SyntaxError - syntax error, unexpected ')' ...rbout.concat(( green_title do ).to_s); _erbout.concat "\n ... ... ^ (erb):4254: syntax error, unexpected end-of-input, expecting ')' ; _erbout.force_encoding(__ENCODING__) ^: (erb):1649:in `' here's how I'm calling it: <%= green_title do %> text <% end %> and here's my helper: def green_title(&block) capture do concat content_tag(:h3) do yeld end end end 回答1: Your block is

<%= with a block in rails 4

▼魔方 西西 提交于 2020-07-03 09:39:05
问题 I'm trying to use a block in a helper, but that's giving me this error: SyntaxError - syntax error, unexpected ')' ...rbout.concat(( green_title do ).to_s); _erbout.concat "\n ... ... ^ (erb):4254: syntax error, unexpected end-of-input, expecting ')' ; _erbout.force_encoding(__ENCODING__) ^: (erb):1649:in `' here's how I'm calling it: <%= green_title do %> text <% end %> and here's my helper: def green_title(&block) capture do concat content_tag(:h3) do yeld end end end 回答1: Your block is

Open file picker form my Android activity

与世无争的帅哥 提交于 2020-05-11 14:29:48
问题 I'm making an Android app which stores some downloaded pdf files inside the device's SD card. Everything works fine, but now I want to add a function to just pop up the default android file/folder browser showing the directory where my app stores all the PDF (with subdirectories in it) so that the user sees where his documents are stored and can easily browse them. I've been throught many other SO questions and forum posts, but it seems this can only be done for music/images/contacts/etc.

android.os.FileUriExposedException:file:///storage/emulated/0/test.txt通过Intent.getData()在应用程序之外公开

守給你的承諾、 提交于 2020-05-03 16:09:10
问题: The app is crashing when I'm trying to open a file. 当我尝试打开文件时,应用程序崩溃。 It works below Android Nougat, but on Android Nougat it crashes. 它在Android Nougat以下运行,但是在Android Nougat上崩溃。 It only crashes when I try to open a file from the SD card, not from the system partition. 仅当我尝试从SD卡而不是系统分区打开文件时,它才会崩溃。 Some permission problem? 一些权限问题? Sample code: 样例代码: File file = new File("/storage/emulated/0/test.txt"); Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(Uri.fromFile(file), "text/*"); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); // Crashes on this

React Native之配置URL Scheme(iOS Android)

本小妞迷上赌 提交于 2020-04-28 11:02:39
React Native之配置URL Scheme(iOS Android) 一,需求分析 1.1,需要在网站中打开/唤起app,或其他app中打开app,则需要设置URL Scheme。比如微信的是:weixin:// 二,URL Scheme介绍 2.1,URL Scheme是什么? URL Scheme是一种页面内跳转协议,是一种非常好的实现机制,通过定义自己的scheme协议,可以非常方便跳转app中的各个页面;通过scheme协议,服务器可以定制化告诉App跳转那个页面,可以通过通知栏消息定制化跳转页面,可以通过H5页面跳转页面等。 苹果手机中的APP都有一个沙盒,APP就是一个信息孤岛,相互是不可以进行通信的。但是iOS的APP可以注册自己的URL Scheme,URL Scheme是为方便app之间互相调用而设计的。 URL Scheme必须能唯一标识一个APP,如果你设置的URL Scheme与别的APP的URL Scheme冲突时,你的APP不一定会被启动起来。因为当你的APP在安装的时候,系统里面已经注册了你的URL Scheme。 2.2,URL Scheme应用场景 客户端应用可以向操作系统注册一个 URL scheme,该 scheme 用于从浏览器或其他应用中启动本应用。通过指定的 URL 字段,可以让应用在被调起后直接打开某些特定页面,比如商品详情页

Android 实现浏览器跳转APP应用,网页也可以跳转APP

◇◆丶佛笑我妖孽 提交于 2020-04-15 10:43:04
【推荐阅读】微服务还能火多久?>>> 一、Android端如何操作 1、给Application中Activity添加跳转链接路径和相关权限 <activity android:name=".activity.LoginActivity" android:exported="true"> <intent-filter> <action android:name="android.intent.action.VIEW" /> <category android:name="android.intent.category.DEFAULT" /> <category android:name="android.intent.category.BROWSABLE" /> <dataandroid:host="login.app"android:path="/openLogin"android:scheme="alibaba" /> </intent-filter> </activity> scheme:判别启动的App host: 类似于端口,可用于分流,区分调取的功能 path:同上 ※没有也可以唤起 注意: Activity配置中android:exported="true"这个外部是否可以调用一定要写true,要不然会调用不成功,对于应用安全要求较高的一定要注意。 2、浏览器如何调起

Android 实现浏览器跳转APP应用,网页也可以跳转APP

别说谁变了你拦得住时间么 提交于 2020-04-15 10:23:16
【推荐阅读】微服务还能火多久?>>> 一、Android端如何操作 1、给Application中Activity添加跳转链接路径和相关权限 <activity android:name=".activity.LoginActivity" android:exported="true"> <intent-filter> <action android:name="android.intent.action.VIEW" /> <category android:name="android.intent.category.DEFAULT" /> <category android:name="android.intent.category.BROWSABLE" /> <dataandroid:host="login.app"android:path="/openLogin"android:scheme="alibaba" /> </intent-filter> </activity> scheme:判别启动的App host: 类似于端口,可用于分流,区分调取的功能 path:同上 ※没有也可以唤起 注意: Activity配置中android:exported="true"这个外部是否可以调用一定要写true,要不然会调用不成功,对于应用安全要求较高的一定要注意。 2、浏览器如何调起

Undefined method `remember_token=' 'find_by_remember_token' - Chapter 8 Ruby on Rails Tutorial

冷暖自知 提交于 2020-01-22 16:22:05
问题 I am trying to complete the Ruby on Rails Tutorial by Michael Hartl and I am stuck on Chapter 8. I am getting the same two errors when I run my tests: NoMethodError: undefined method remember_token=' ActionView::Template::Error: undefined method find_by_remember_token' I am very new to coding and programming so I'm not sure exactly what to post so people can help with my question. I feel like I've defined both :remember_token and find_by_remember_token. I've included each of the instances

undefined method `render' for class `ActionView::Base'

随声附和 提交于 2020-01-15 03:57:06
问题 When I start the application crashes following error /home/stereodenis/.rvm/gems/ruby-1.9.3-p194@nyanya/gems/haml-3.1.6/lib/haml/helpers/action_view_mods.rb:15:in `alias_method': undefined method `render' for class `ActionView::Base' (NameError) What maybe wrong? full trace https://gist.github.com/5e3244d488068c9d0ba7 回答1: If you are using a render inside a helper you have to include the functionality! include AbstractController::Rendering Hope it helps 来源: https://stackoverflow.com/questions