Xamarin for visual studio language
- XAMARIN FOR VISUAL STUDIO LANGUAGE HOW TO
- XAMARIN FOR VISUAL STUDIO LANGUAGE ANDROID
- XAMARIN FOR VISUAL STUDIO LANGUAGE CODE
Layout_weight indicates a space occupancy percentage. The property should have the value of its container, or wrap_content, or that should fit the content as it changes You can also indicate the value by some reserved words: For example, often we see the use of match_parent, which indicates that Layout_width and layout_height properties respectively define the width and height of a control. So it is important to point me / customize it (in the form " for all of those controls that are actually used.
XAMARIN FOR VISUAL STUDIO LANGUAGE CODE
Without it, you can not reference the code from the object, First, the parameter id: is a basic setting, as defines the name of a control on their layout. In it you can appreciate some recurring parameters, for which we note here some important information. The XML code that will realize our window is as follows: ListView (we'll need to list the records added) on the third a Button to perform a possible emptying massive operation of our table. Objects (containers that allow you to reserve a certain percentage of screen space to their content, and to give an orientation to the same), to populate then each of them with the desired controls in the first LinearLayout insert aĮditText (editable text box) and a Button (clickable object) the second will add a Graphically, we will take care of creating three types LinearLayout
XAMARIN FOR VISUAL STUDIO LANGUAGE ANDROID
Lets add a new item, and select the Android type layout. Lets now define the layout for the main screen of our app. Layout - containing AXML files, which define using XML syntax of app screens and the controls defined on them, and the values directory, in which to define the constant files, for example by associating to predefined identifiers by referencingĪpp of fixed text strings (in the case of strings.xml files).Ĭompleting the list, in this case, C # classes MainActivity.cs (the class that will control our startup object) and SQLiteORM.cs, class written specifically to perform the mundane tasks of database we're going to define In our case, we notice the drawable subfolder (which here contains the Icon.png file or icon to be attributed to the app), the directory The structure of the Resources folder is more diverse, and contains several sub-folders (for example, the list is not exhaustive), by which go to define string constants, graphic objects, icons and images to use in the program. To precisely interact with a database, we want it to be regarded as the solution files, before being moved physically on your smartphone / tablet / device that will run the app. In the image, we see in it a file name test.db: it comes to our database, which we will see later development. The first contains all the files that you need a copy of the device. Leaving alone those classes which defines solution's Activities, two folder can be seen: AssetsĪnd Resources. In the following image, it can be seen the structure of an already complete solution, to give a first overview on the general organization of and Android project, and the meaning exposed by each folder. the interaction (as essential as it may be) with a database, using here and ORM available as This objective aims to give sufficient elements to further deepen the more general and basic topics for developing an Android app: the structure of the project, the creation of a GUI, its control through code and - important! More specifically, the present article will expose a trivial project: what we want to do here is a simple app which, given a textbox, allows inserting of alphanumeric strings, to save them in a In the present case, lets choose an empty solution, to later add classes and object of interest. If Xamarinįramework has been previously installed (its configuration won't be treated here),Īndroid templates will be available. We will use C# language to write down our source codeĪs usual, let's create a new project in Visual Studio. The project will allow us to analyze, more generally, the peculiarities of an Android solution, such as - for example - the organization of the projectįiles (and so its structure), and the peculiarities of the framework itself, speaking about the code syntax. Xamarin, the developer framework which allows the creation of cross-platform solutions.
XAMARIN FOR VISUAL STUDIO LANGUAGE HOW TO
In the present article we'll see how to develop a simple Android solution, through the use of Visual Studio and