sdk

前提： 1.下载好anndoid studio 2.配置好sdk环境变量 ANDROID_HOME 1.下载flutter SDK flutter网址 https://flutter.cn/docs/get-started/install/windows 下载>>解压到相关目 录下 2.配置flutter环境变量 在Windows 环境变量Path中添加flutter的路径，路径指向到Flutter文件的bin路径如下图： 3.打开一个命令窗口 win+r>>cmd 输入fultter doctor 可以看到，检查的有android sdk，android studio版本等等 出现的问题 　　3.1 flutter doctor 无反应 　　　　　　重新打开一个命令窗口，就ok了 　　3.2 flutter doctor 没有权限 Android toolchain - develop for Android devices (Android SDK version 28.0.3) ! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses 方法： cd 到自己sdk的路径 cd tools cd bin sdkmanager --licenses /

I know there are already quite a lot of blog entries , how to's , questions out there that cover backward compatibility of Android 3.0 apps. However, after reading them all I'm just more confused than before. :( What I have is a Smartphone app that supports min. SDK version 8 (2.2). I now want this one to stay the same on Smartphones, but also provide a fancy version on Honeycomb Tablets with Action Bar and Fragments and so on. I know there is the compatibility pack, but all I read about it was about Fragments. What's with the Action Bar and the holographic Theme? I did get this pretty nice

　　本节主要讲解如何安装ArcGIS Runtime SDK，以及移除注释与水印。 　　附上 ArcGIS Runtime SDK for .NET 的官方操作手册网址： https://developers.arcgis.com/net/latest/wpf/guide/install-the-sdk.htm 一、项目添加 ArcGIS Runtime SDK 引用 。 　　 鼠标右键点击项目，选择“管理NuGet程序包”。 　　在“浏览”中输入“Esri”,在列表中选中“Esri.ArcGISRuntime.WPF”进行安装。 二、在View中使用地图。 　　在界面中添加引用 xmlns:esri="http://schemas.esri.com/arcgis/runtime/2013" 后，就可以直接使用地图控件了。 1 <esri:MapView> 2 <esri:Map> 3 <!-- 用法一 --> 4 <!--<esri:ArcGISTiledLayer Source="http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer" />--> 5 6 <!-- 用法二 --> 7 <esri:Map.Basemap> 8 <esri:Basemap> 9 <esri

前言 　　官方提供了两个函数 　　 　　 GPIO_OUTPUT_SET(gpio_no, bit_value) 设置GPIO2输出高电平 GPIO_OUTPUT_SET(2, 1); 设置GPIO2输出低电平 GPIO_OUTPUT_SET(2, 0); GPIO_OUTPUT(gpio_bits, bit_value) 官方提供的一次性设置多个引脚函数 设置GPIO2和GPIO5输出高电平 GPIO_OUTPUT(BIT2 | BIT5, 1); 设置GPIO2和GPIO5输出低电平 GPIO_OUTPUT(BIT2 | BIT5, 0); 开发板原理图 　　一,LED(GPIO2) 　　　　 　　二,继电器(GPIO5) 　　　　 　　 测试(GPIO2输出高电平点亮LED) #include "gpio.h" GPIO_OUTPUT_SET(2, 1);//设置GPIO2输出高电平 测试(GPIO2输出低电平,GPIO5输出高电平控制继电器吸合) #include "gpio.h" GPIO_OUTPUT_SET(2, 0);//设置GPIO2输出低电平 GPIO_OUTPUT_SET(5, 1);//设置GPIO5输出高电平 测试(GPIO2输出低电平,GPIO5输出低电平) #include "gpio.h" GPIO_OUTPUT(BIT2 | BIT5, 0);/

I'm having an issue displaying the elements of an array in Lua programming language. Basically, i created an array with 3 elements, and i'm trying to display its contents in a for loop on the corona sdk emulator. What happens is that if i display the individual array elements (without the loop), they display fine; as soon as I put them in a for loop, nothing shows up on the screen anymore this is my code: myText = {"hello", "world", "there"} for i = 1, myText do local myText = display.newText( myText[i], 0, 0, native.systemFont, 35 ) end fenadoruk Here is a function I wrote to list the items

I am trying to create a Facebook-Login in my Laravel application. However, the array I get with all the user information does not contain the users email even though I already ask for permission to receive the email. This is my code: Route::get('login/fb', function() { $facebook = new Facebook(Config::get('facebook')); $params = array( 'redirect_uri' => url('/login/fb/callback'), 'scope' => 'email', ); return Redirect::to($facebook->getLoginUrl($params)); }); Route::get('login/fb/callback', function() { $code = Input::get('code'); if (strlen($code) == 0) return Redirect::to('/')->with('message