Windows phone 8 operating system download free. Windows Phone 8.1 – platform concepts and app development

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Apps can be pinned and can have static or live tiles as well as secondary tiles which are pinned from inside the app and allow users to quickly access specific areas within an app [27]. Similarly, any app may provide a lock screen notification icon where the user may select five apps to show an icon and a badge-like value [29].

Apps are also allowed to provide a text for a larger text notification where the user is also in charge to select which app is allowed to provide this text. However, registering the app as the lock screen background image provider is not supported anymore and is only possible for Windows Phone 8 or Silverlight 8. Furthermore, a tile is based on four states in Windows Phone: tiny 44x44px , small 71x71px , medium xpx and wide x [30].

Only medium and wide tiles can be live tiles which either can be a code-generated bitmap, that can also be created in background tasks using the new XamlRenderingBackgroundTask [31], or created by the API by sending a XML text following one of the numerous supported tile template structures [32][33].

Besides tiles, apps are capable of showing toast notifications which may include text as well as an optional icon [34]. Introduced with Windows Phone 8. An app is able to add, update or delete messages — even without notifying the user by using ghost notifications.

Push notifications sent via the Windows Push Notification Services may add or remove them in the same manner [36]. Aforesaid push notifications may also be pre-processed by background tasks such as opening a messenger should display new messages immediately instead of having to load them from the server separately from the notification. What background tasks are will be described in the following section.

The old agent and task model has been replaced by the Windows model for background processing which leverages a number of triggers an app can listen for. This allows tasks to launch on time, location, push, Bluetooth and system events. Background tasks can react on changes of internet availability, change of the network state in general or even be triggered when entering a specific geofence, a geographical region watched by location services [37].

Furthermore, the available resources for background tasks are restricted by the platform. Each app is given a quota which is calculated based on different parameters such as whether the device is powered or in which network environment the device is [37]. Apps may be restricted in using the CPU, memory and network data.

Two specific background tasks are the maintenance task [38] which runs when the device is plugged in and the update task [39] which is invoked when the user installs an update of the app in order to perform initialization tasks.

Furthermore, Windows Phone 8. Data can be uploaded and downloaded together with the possibility to access downloads while the transfer is still in progress for example in order to start watching videos.

Aforesaid transfers may also be given a cost policy to either always download data on metered networks only, to disallow it on metered networks or always transfer data. Lastly, all transferred data has to be stored on the device. The following section will highlight the different ways on how to achieve this.

The data is preserved when updating an app and specific data is synchronized to the cloud being available in both Windows Phone and Windows apps used with the same Microsoft account [41]. Firstly, each app has access to a predefined key-value-storage which is either the local or roaming setting storage.

Each setting name can be characters in length whereas the content may be up to 64 kB in size. The same also applies to the roaming storage where the synchronization engine may limit the total size of the roaming data. Next to this setting storage, there are multiple folders available to apps to store any data. In the first place there is a LocalFolder which is the root folder to store data locally. The only difference to the LocalCacheFolder is that the cache is not included in backups.

Similarly, there is a TemporaryFolder where temporary files can be stored. Developers should keep in mind that this folder may be deleted at any time by the operating system to free data.

Furthermore, there exists a RoamingFolder which also synchronizes to the cloud and is restricted by a quota as well. Using the DataChanged event handler of ApplicationData the app can respond to changed roaming data. Finally, there is also a PasswordFault storage for storing sensitive information and apps also have access to the folder they are installed to. This is essential to access assets that are bundled with the application. The following section will discuss how resources are handled and what developers have to keep in mind.

Assets and string resources can be tailored to support multiple display scales, user interface languages, the home region, high contrast settings and even more.

It is free to the developers whether to put the qualifiers in the folder or file names, because this structure is recognized by the app at run time. The same applies to string resources which are stored in a key-value-list in files with the. Not only strings but all properties of controls can be localized.

The values can either be accessed from the logic but also directly in the views. Subscribe to our Free Newsletter: Subscribe. Downloads Windows Visual Studio Twitter Facebook WhatsApp Telegram. Supported Base. Free space. There's a full Facebook client in WP8. Office applications work standalone as well as they always did, for example creating an Excel sheet and emailing it off to someone. Just be aware that because of the lack of Microsoft account support there's no OneDrive access.

Still, Word and Excel are always handy to have in full editing form. Load up some albums into the phone's internal 32GB storage and you're away. And with a 3. Of course, for much of Windows Phone's lifetime, OneDrive was a source of music, i. No files for me. Or documents. Or backups! Still, local music is also good and means not having to worry about bandwidth; right remember also that Windows Phone 8. Xbox Video still works - you can browse the Microsoft libraries, with films and TV shows.

Though note that I found play options for an old TV series I had bought now greyed out. So your mileage may vary. Plus, of course, you can play your own MP4s, just side load them with drag and drop from Windows, or similar. System: Windows Phone 8 and 8. The Windows Insider program allows users to bypass the carriers and install the new Windows 10 mobile operating system on their phones directly. RAM: MB and only support for bit.

Note: 1. The Windows 10 mobile download and update may need quite some time and might need to restart more than once to finish the Insider Preview installation and get the complete Windows 10 mobile update. If you have installed the Insider Preview and then want to return to Windows Phone 8. It's the only way to remove Insider Preview — only uninstalling the Windows Insider app will not restore your phone to the previous Windows Phone version.

So we strongly advise you to backup all your useful and important data before downloading and upgrading to Windows 10 mobile and remember to fully charge your phone battery, really. Step 1: To download and install Windows 10 mobile on your mobile devices, you'll first need to check whether your device is against the list of compatible devices. Step 2: Make sure your device is running on Windows Phone 8.