S.N. Folder, File & Description 1 srcThis contains the .java source files for your project. By default, it includes an MainActivity.java source file having an activity class that runs when your app is launched using the app icon. 2 genThis contains the .R file, a compiler-generated file that references all the resources found in your
Application components are the essential building blocks of an Android application. These components are loosely coupled by the application manifest file AndroidManifest.xml that describes each component of the application and how they interact. There are following four main components that can be used within an Android application: Components Description Activities They dictate the UI and handle the
he Application Framework layer provides many higher-level services to applications in the form of Java classes. Application developers are allowed to make use of these services in their applications. The Android framework includes the following key services − Activity Manager − Controls all aspects of the application lifecycle and activity stack. Content Providers − Allows
This category encompasses those Java-based libraries that are specific to Android development. Examples of libraries in this category include the application framework libraries in addition to those that facilitate user interface building, graphics drawing and database access. A summary of some key core Android libraries available to the Android developer is as follows − android.app
Android is an open source and Linux-based operating system for mobile devices such as smartphones and tablet computers. Android was developed by the Open Handset Alliance, led by Google, and other companies. Android is an open source and Linux-based Operating System for mobile devices such as smartphones and tablet computers. Android was developed by the Open Handset Alliance,
Securing your Web API with [Authorize] Just like any ASP.net project, securing your Web API is very easy to do via the [Authorize] attribute. By using [Authorize], you can restrict access to authenticated users, this means user that have usernames / passwords in .net’s built-in identity system. If you are creating a new project, choose
What is OData query syntax? OData query syntax is a standard way of querying RESTful APIs using a pre-defined syntax that allows the calling client to define the sort order, filter parameters and pages of data that is returned. The full syntax can be found in section 5 of the OData Version 4.0 Part 2 specification
If you are building apps or websites today, the chances are you’ll have heard of REST and .net Web API, but you may not be sure what these things are, whether you should use them or how to get started. If this sounds familiar, then this article for you. API; what and why? Let’s start
ASP.NET Core MVC has built-in support for formatting response data, using fixed formats or in response to client specifications. Sections Format-Specific Action Results Content Negotiation Configuring Formatters Response Format URL Mappings View or download sample from GitHub. Format-Specific Action Results Some action result types are specific to a particular format, such as JsonResult and ContentResult.
Introduction to model validation Before an app stores data in a database, the app must validate the data. Data must be checked for potential security threats, verified that it is appropriately formatted by type and size, and it must conform to your rules. Validation is necessary although it can be redundant and tedious to implement.