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【转】用App Inventor 2实现电子围栏功能 - App应用开发 - 清泛IT社区，为创新赋能！
在行空板《家庭安全相册》项目中，第四部分是手机APP监护人部分。这部分需要完成手机获取家庭成员传送回来的位置后，计算是否在安全的电子围栏范围内。因为电子围栏是相对复杂的部分，因此独立一章详细说明。
App In...
angular js unknown provider
...will be helpful. What I'm suspecting is that you are not initializing your app with the 'productServices' module. It would give the same error, we can see this in another jsFiddle: http://jsfiddle.net/a69nX/1/
If you are planning to work with AngularJS and MongoLab I would suggest using an existing...
How do I manage MongoDB connections in a Node.js web application?
...de-mongodb-native says:
You open do MongoClient.connect once when your app boots up and reuse
the db object. It's not a singleton connection pool each .connect
creates a new connection pool.
So, to answer your question directly, reuse the db object that results from MongoClient.connect(). ...
Is there a way to get a collection of all the Models in your Rails app?
...ere a way that you can get a collection of all of the Models in your Rails app?
28 Answers
...
Can an AngularJS controller inherit from another controller in the same module?
...o use the $controller service to instantiate the controller instead:-
var app = angular.module('angularjs-starter', []);
app.controller('ParentCtrl', function($scope) {
// I'm the sibling, but want to act as parent
});
app.controller('ChildCtrl', function($scope, $controller) {
$controller('P...
How do I keep the screen on in my App? [duplicate]
For my Android app I never want the phone to lock or the back light to turn off
11 Answers
...
Create a new Ruby on Rails application using MySQL instead of SQLite
I want to create my Rails application with MySQL, because I like it so much. How can I do that in the latest version of Rails instead of the default SQLite?
...
How can I access Google Sheet spreadsheets only with Javascript?
... way to access Google APIs with JavaScript, and that would be from Node.js apps using its client library, so I added it below.
It's Mar 2017, and most of the answers here are outdated -- the accepted answer now refers to a library that uses an older API version. A more current answer: you can acces...
Is there a Google Keep API? [closed]
Is there a API for Google Keep? I want to make a windows 8 app for Google Keep, so that it synchronizes with your phone.
3...
Your build failed due to an error in the AAPT stage, not because of an...
...或过时的扩展（请咨询扩展开发人员）该项目已使用非 App Inventor IDE 保存，使其不兼容不支持浏览器 - 使用 FireFox、Chrome 或 Safari（最新版本）互联网连接不是最佳的网络防火墙正在阻止 App Inventor
目标设备（例如智能手机）没...