Windows store app for android 10
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You are able to add video and image overlays, combine video clips, add background audio, and apply audio and video effects. You can use ApiInformation.
ITunes Download for iPhone & Android
You can also implement IList and INotifyCollectionChanged in your data source, providing data virtualization and further improving performance. In the past, people used the iPod for their music entertainment but now no one wishes to move around with several devices simultaneously. 6 inch android phones questions Adaptive and interactive toast notifications Choose a notification delivery method Guidelines for toast notifications Scheduling local notifications. You can schedule a toast notification using ScheduledToastNotification. Tab bar controllerssplit view controllers and page view controllers allow navigation between views of equal hierarchy.
Download iTunes for Android
Types of notifications that can be displayed. Thanks to the modernization and advancement in technology, users can download the setup through the internet.
User-interface (UI)
Here is a list of methods by which you can get the iTunes Download for Android app on your device:. The basic folder structure of an app, often created from an initial template. So, here in this section, we have elaborated some steps for our readers who would be interested in the iTunes Download for their Windows PC. Geocoding and reverse geocoding.
Version free download windows store app for android libras
13.03.2018 - The navigation controller can have a back button added to it. Secure connections to servers supporting WebSockets can be made with the MessageWebSocket class for smaller messages with receipt notifications and StreamWebSocket for larger binary file transfers which can be read in sections. No simple method of editing the visual structure of controls exists in iOS. Perform geocoding and reverse geocoding. Listsand grid listsbuttons and other controls provide descendent navigation when used with intents to load other activities. You can also use HttpClient which is ideal for smaller files.
Cool math windows store app for android bit windows
09.02.2018 - You can easily search for your desired app or view trending apps in different categories. Thanks to the iTunes Radio, users can use online streaming of music anytime they want. The Automation instrument allows you to write automated UI test scripts which identify elements using the accessibility settings or the element's position in the element hierarchy. According to the mode you choose, there are three modes for the account setup.
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So, here in this section, we have elaborated some steps for our readers who would be interested in the iTunes Download for their Windows PC. Moreover, using the iTunes App on the PC will allow the user to have more battery power and storage allowance.
Fortunately enough, the iTunes App is available for Windows from its official website. We have provided the link for our readers to access the website easily. We request you to read all the steps first and then move to downloading the app on your Windows PC.
Here are some system requirements that you must consider before downloading the iTunes App. Download iTunes for Windows. The app will also play media files through the internet network on your Windows device.
So, you see, the steps are as simple as they can be and all you need is a decent internet connection to get you through the iTunes Download for Windows. The users who purchase the Mac device do not have to purchase the iTunes App separately.
Again for that, there are no CDs with iTunes version available in the market like for other Softwares. Thanks to the modernization and advancement in technology, users can download the setup through the internet.
There is a series of steps that you need to follow, to successfully download the Mac version of iTunes download app. Now, the process for iTunes download for Mac is similar to that of Windows.
Follow the steps given here to download the iTunes App on your Mac device:. After completing all the steps, you will be able to use the iTunes download app easily.
You have to log in your iTunes account details when you launch the app for the first time after download. If you are a Mac user and you have missed out the iTunes App or are looking for a way to get it back on your Mac device then these steps will get you out of trouble.
The iTunes Store contains a huge collection of music tracks that plays with your iPod, iPhone or computer. It is one of the greatest advantages of having an iPhone or iPad or iPod where the users can stream any music file of their choice from the iTunes Store.
The iTunes Store contains the largest collection of legal apps and numbers hit around, apps. All the purchases done are saved in Cloud so there were no issues of storage.
So, here we will also discuss the requirements of the iTunes Store from your device in order to run the apps effectively:. Once these requirements are cross-checked, you can start using the iTunes Store on your iOS devices.
You can easily search for your desired app or view trending apps in different categories. When you click the app icon, there will be the description to download and install the app, as well as there will the option of payment if the app you selected is paid premium.
As you read, you must have realized that to enjoy the perks of any feature, be it iTunes for Android, Store, App Player, all the users must have an iTunes account.
The system to have an account is mandatory as per the regulations of the Apple company. If you have any of the iOS devices from the Apple company, then it is mandatory to have an iTunes account to use its services.
Now, having different accounts will not be beneficial for the user as he will have to remember too many IDs and passwords. So, it is recommended that the users should have a single or minimum two iTunes accounts.
Creating an account on the iTunes Download app is not at all hasty and is completely free of cost. We have discussed the steps to create an iTunes Account for our readers in this section.
According to the mode you choose, there are three modes for the account setup. Read the methods carefully and try any of them:. There are many apps from the iTunes Store that require account details and the ID is recorded.
Either of these methods will end up having the successful iTunes account. This is one of the most unique and awesome features of iTunes Download App in the iPhone or iPod devices. Users can send their friends or family members cool virtual gift cards.
The iTunes Store also provides e-cards that users can send to other users to express some feeling. If you have the iPhone or iPod and do not know how to respond to this feature, then read this section of the article to clear your doubts.
First, you must install the latest version of the iTunes on your device. If you do not have one follow the sections above to conquer that part. Then what you need is an Apple account ID.
In order to purchase items from the iTunes store, the user must have an Apple ID. Next, is the most fun thing of all. When you redeem the gift card, you inherit the credit. For this, you need to turn the card over to the back side and scratch for the code.
Enter the code and your gift card amount will credit to your account. The next screen will come with the exact card details and will ask you to confirm redemption. You can also send e-Cards to your friends using the credit amount or by purchasing from your account payment.
The iTunes support live internet Radio for its users. Though it is significant to mention that the service is only available in the US nation as of yet. The iTunes Radio is an alternative to the music purchases that one has to make through the iTunes Store.
It has lots of features and advantages over the local Radio channel application. If you have an iOS device, make sure you have installed the latest version of the iTunes download app in it.
Here are some more system requirements for the proper functioning of iTunes Radio:. XML styles are sets of properties that are applied to one or more controls. You can create reusable styles, which can be applied to multiple controls and stored in a ResourceDictionary for easy reuse.
Styling Controls Editing the visual structure of controls. Customize the visual structure of a control beyond just modifying properties or attributes, e. No simple method of editing the visual structure of controls exists in Android.
No simple method of editing the visual structure of controls exists in iOS. To customize the visual structure of a control, you can copy and edit its control template in XAML markup. Control Templates Built-in touch gestures.
Provide customized touch support by handling high level abstracted gesture events such as tap and double tap in views and controls. Gesture detectors detect common touch gestures including scrolling, long-press, tap, double-tap and fling.
UIKit framework provides built-in gesture recognizers which detect touch gestures including tap, pinch, pan, swipe, rotate and long-press. UI elements allow you to handle static gesture events including tap, double-tap, right-tap and holding, as well as manipulation gesture events including slide, swipe, turn, pinch and stretch.
Gesture events are routed events and can be handled by parent objects containing the child UIElement. The layout defines the structure of the user interface. Layout is composed of view groups such as the LinearLayout and the RelativeLayout which can nest other view groups or views.
Properties are used to control the size and position of the elements. Presenting the user with methods of navigating between pages of equal hierarchical importance. Tabs, swipe views and navigation drawers provide lateral navigation.
Tab bar controllers, split view controllers and page view controllers allow navigation between views of equal hierarchy. Navigation Navigate between two pages Hierarchical navigation. Navigating between parent and child pages of a hierarchy.
Lists, and grid lists, buttons and other controls provide descendent navigation when used with intents to load other activities. Navigation controllers allow users to navigate between levels of a hierarchy.
Hubs let you show the user a preview of content which can be selected to navigate to child pages. Navigation Navigate between two pages Back button navigation. Navigating back through an application.
The back and up buttons inside the action bar provide ancestral and temporal navigation using the back stack. The navigation controller can have a back button added to it. You can handle software or hardware back button presses easily using the back stack property which allows your users to traverse the navigation history.
Back button navigation Splash screen. Showing an image on app launch, used primarily for branding. Splash screens are not provided by default, and are implemented by editing the first activities theme background.
You create a splash screen using an image and colored background. Splash screen time can be extended. Speech recognition for speech input, and additional voice capabilities. Speech input can be provided by any app which implements a RecognizerIntent, such as Google Voice Search.
Apps can use the SFSpeechRecognizer class to implement speech input and speech recognition. You can use the speech recognition API to interact with your app in the foreground. Speech interactions Custom user inputs.
Handling keyboard, mouse, stylus and other inputs. Support for interactions includes touch, touchpad, stylus, mouse and keyboard. Movements and inputs are reported in the same way as touch, but it is possible to detect more information about the input device.
Support for touch, the Apple Pencil and hardware keyboards are provided. Your apps can handle the data without needing to know which input device was used, and raw input device data can be accessed if needed.
Storing settings and files related to your app locally. Local files can be saved using openFileOutput and openFileInput. Settings in a shared preferences file can be accessed using getSharedPreferences.
Local files can be stored in the application support directory, accessed via the NSFileManager class. Settings in preferences files can be accessed by the NSUserDefaults class. Storage classes handle local data storage for you in a unified way.
You store files in a StorageFolder object accessed via the ApplicationData. Store and retrieve settings and other app data Local database storage. Storing app data in a relational database, with object-relational mappers ORM if applicable.
The SQLite database is provided. No ORM is built-in. You can store data using SQLite. Entity Framework is a built-in ORM which eliminates the need to write lots of data access code and enables you to easily query the database without writing SQL.
Platform-provided backup services for app data. Android's backup manager handles the backing up of application data in Google's Android Backup Service. Guidelines for roaming app data HTTP file downloads.
Downloading large and small files over HTTP. You can also use HttpClient which is ideal for smaller files. Networking basics Which networking technology? Provide two-way communication between a client and server, enabling real-time data transfer.
No built-in WebSockets libraries exist on Android. No built-in WebSockets libraries exist on iOS. Secure connections to servers supporting WebSockets can be made with the MessageWebSocket class for smaller messages with receipt notifications and StreamWebSocket for larger binary file transfers which can be read in sections.
WebSockets overview OAuth libraries. OAuth libraries allowing access to third party OAuth providers, and any account management built into the platform. No generic OAuth library is provided.
The accounts framework provides access to user accounts already stored on the device such as Facebook and Twitter. The generic OAuth library Web authentication broker lets you connect to third-party identity provider services.
The Credential locker allows your users to save their login and use it on multiple devices. Authentication and user identity Windows. The toolset used to create your app.
Visual Studio also provides you with emulators for Windows 10 devices, so you can test your app across a range of emulated devices. Downloads and tools for UWP Code organization.
The basic folder structure of an app, often created from an initial template. AndroidManifest file, java folder containing source files, res folder with resources including layouts and values, Gradle build scripts in Android Studio and Ant build scripts in Eclipse.
Source files and Supporting Files, Info. Images are stored in Asset libraries. Each activity has its own activity lifecycle with states such as resumed. Lifecycle callbacks such as onResume are implemented in in your activity classes.
The application lifecycle has states such as suspended. Methods such as applicationDidEnterBackground: You can implement the Application class methods OnLaunched, OnActivated, Suspending or Resuming in your app to run code when the state changes.
App lifecycle Background tasks. Tasks that perform background operations and continue to run when the app is no longer in the foreground. Apps can launch services which perform background operations when the app is no longer in the foreground.
Services have their own lifecycle and are registered in the manifest. Background execution is only permitted for specific task types. Apps declare supported background tasks in the Info.
The system controls when background tasks are run and for how long. You can create a background task by implementing the IBackgroundTask interface and registering the task in the application manifest.
You can set a task to be triggered with a timer, system trigger, and maintenance trigger. Guidelines for building apps that are fast, responsive, considerate of battery life with a fast startup time.
Android provides the Best Practices for Performance training guide. You can read the detailed Performance guide with sections covering topics such as; setting performance goals, measuring performance, memory management, smooth animations, efficient file system access and the tools available for profiling and performance.
View optimization for a responsive UI. Improving performance by optimizing views. Optimizing layout hierarchies using the Hierarchy Viewer tool, reusing layouts and loading views on demand are all techniques to help keep the UI thread responsive and avoid "Application Not Responding" dialogs ANR's.
Fixing UI issues with offscreen rendering, blended layers, rasterization using the Core Animation tool help keep the UI thread responsive. You can easily optimize XAML markup and layouts by following a few simple steps.
Techniques include reducing layout structure, minimizing the element count and minimizing overdrawing. Use of threading to maintain a responsive UI and run multiple tasks in parallel.
You can work with threads by submitting work items to the threadpool with RunAsync. You can use a timer to submit a work item with CreateTimer and create a repeating work item with CreatePeriodicTimer.
Submit a work item to the thread pool Use a timer to submit a work item Create a periodic work item Best practices for using the thread pool Asynchronous programming. Avoid threading complexity by taking advantage of asynchronous programming patterns to keep the UI thread responsive.
The use of threading is required to create your own asynchronous classes. Some built-in classes are asynchronous. The use of threading is required is required to create your own asynchronous classes.
You can use asynchronous patterns to avoid blocking the main thread when you create your own APIs, e. You can use the asynchronous built-in APIs which end in the word Async.
Built-in patterns to aid with optimizing lists of data, which often have poor performance when large amounts of data need to be shown The ViewHolder design pattern is used to avoid multiple view lookups, which allows you to use reusable UI elements.
A range of optimizations can be made to improve the performance of UITableView, nothing is built-in. You can use the ListView and GridView controls which provide UI virtualization out-of-box, providing a smooth panning and scrolling experience and a faster startup time.
You can also implement IList and INotifyCollectionChanged in your data source, providing data virtualization and further improving performance. Platform features that allow users to make purchases in your apps.
In-app billing is provided by Google Services. Products are added to the Google Play Developer Console. In-app purchases are implemented with the Google Play Billing Library.
Products are added to iTunes Connect. In-app purchases are implemented using the StoreKit framework. You create in-app product purchases for your app by adding them to your app and submitting them to the Store.
You use the CurrentApp class to define in-app purchases. Enable in-app product purchases Consumable in-app purchases. In-app products which can be purchased, used and then purchased again.
Consumable purchases are enabled by making a regular purchase and then consuming it with consumePurchase, enabling it to be purchased, used, and then purchased again.
Consumable products are defined as consumable products in iTunes Connect. You can support consumables by defining their product type as Consumable when you submit them to the Store. You then call CurrentApp.
ReportConsumableFulfillmentAsync after a consumable purchase has been made to allow the customer to access it. Enable consumable in-app purchases Testing in-app purchases.
Enabling you to test your in-app purchase code without putting your app in the Store. The in-app billing sandbox is used for testing. Sandbox tester accounts are used for testing.
Enabling you to easily limit content or remove advertising based on a trial version of an app. Google Play doesn't officially support app trials. Trials or removing advertising is achieved by creating an in-app purchase and taking the appropriate code path when confirming the purchase was successful.
The App Store doesn't officially support app trials. You can offer a free trial version of your app by using the 'Free Trial' option when submitting your app to the Store. You can then use LicenseInformation.
IsTrial to check the trial status of the app and present different code paths accordingly. You can register for the LicenseChanged event to be notified when the user changes the trial status while the app is running.
Supporting different screen sizes with a flexible height and width. Flexible layouts can be achieved using the adaptive model with universal Storyboards, making use of Auto Layout with constraints and traits such as horizontalSizeClass and displayScale which are applied to view controllers.
You can create a fluid layout using layout properties and panels with a combination of fixed and dynamic sizing. Supporting different screen sizes with separate targeted layouts.
Providing alternative layout files for different screen configurations in the resources directory using configuration qualifiers such as small, large, ldpi, and hdpi allows you to target custom layouts to screens of varying size and density.
Define a separate iPhone and iPad Storyboard to tailor layouts to different device families in a universal app. You can build a tailored layout by defining different XAML markup files per device family.
Responding to changes in screen size, such as rotation, or a change in the size of a window. Use of flexible layouts with LinearLayout and RelativeLayout, or providing alternative layout files for different orientations enable responsive layouts.
When the size or traits of a view change, the constraints specified in storyboards are applied. You can easily reflow, reposition, resize, reveal, or replace sections of your UI at runtime in response to window size changes using VisualState, the VisualStateManager and AdaptiveTrigger.
Define layouts with XAML - visual states and state triggers Responsive design Supporting different device capabilities. Take advantage of advanced hardware features while still supporting devices without them.
Testing for device features at runtime using PackageManager. There is no single check you can perform at runtime to test for device features, you test for each feature in a specific way to decide if hardware specific code can be run.
You can add platform extension SDKs to your package to target additional functionality found in different device families including phone, desktop, and IoT. You use the ApiInformation API to test for the presence of types and members at runtime, and can call those types and members only if they're present.
Supporting different device capabilities. Testing for the API level at runtime can be done using Build. Standard runtime checks are used to find out if APIs are available, such as the class method to check if a class exists and respondsToSelector: You can use ApiInformation.
You also use the ApiInformation API to test for the presence of types and members at runtime, and can call those types and members only if they're present.
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Compare platform features between iOS, Android, and Windows
21.02.2018 - Testing for device features at runtime using PackageManager. All the purchases done are saved in Cloud so there were no issues of storage. You can use Launcher. Oneplus 5t headphone jack 0 lantern face patterns... Gesture detectors detect common touch gestures including scrolling, long-press, tap, double-tap and fling. Google Cloud Messaging provides push notification support for Android.
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22.02.2018 - You can support consumables by defining their product type as Consumable when you submit them to the Store. For this, you need to turn the card over to the back side and scratch for the code. Kelley rv blue book rv blue book value - Down with... Displaying an interactive built-in map and adding points of interest. Your app has a tile which can be pinned to the start screen and is used to display your choice of text, images, and a badge with glyphs and numbers.
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30.01.2018 - Layout is composed of view groups such as the LinearLayout and the RelativeLayout which can nest other view groups or views. Either of these methods will end up having the successful iTunes account. You also use the ApiInformation API to test for the presence of types and members at runtime, and can call those types and members only if they're present. Xiaomi redmi note 3 xiaomi redmi note 4 - The goog... Now, having different accounts will not be beneficial for the user as he will have to remember too many IDs and passwords. Notifications can have actions added to them by defining a PendingIntent.
Download iTunes for Windows. The app will also play media files through the internet network on your Windows device. So, you see, the steps are as simple as they can be and all you need is a decent internet connection to get you through the iTunes Download for Windows.
The users who purchase the Mac device do not have to purchase the iTunes App separately. Again for that, there are no CDs with iTunes version available in the market like for other Softwares.
Thanks to the modernization and advancement in technology, users can download the setup through the internet. There is a series of steps that you need to follow, to successfully download the Mac version of iTunes download app.
Now, the process for iTunes download for Mac is similar to that of Windows. Follow the steps given here to download the iTunes App on your Mac device:. After completing all the steps, you will be able to use the iTunes download app easily.
You have to log in your iTunes account details when you launch the app for the first time after download. If you are a Mac user and you have missed out the iTunes App or are looking for a way to get it back on your Mac device then these steps will get you out of trouble.
The iTunes Store contains a huge collection of music tracks that plays with your iPod, iPhone or computer. It is one of the greatest advantages of having an iPhone or iPad or iPod where the users can stream any music file of their choice from the iTunes Store.
The iTunes Store contains the largest collection of legal apps and numbers hit around, apps. All the purchases done are saved in Cloud so there were no issues of storage. So, here we will also discuss the requirements of the iTunes Store from your device in order to run the apps effectively:.
Once these requirements are cross-checked, you can start using the iTunes Store on your iOS devices. You can easily search for your desired app or view trending apps in different categories.
When you click the app icon, there will be the description to download and install the app, as well as there will the option of payment if the app you selected is paid premium. As you read, you must have realized that to enjoy the perks of any feature, be it iTunes for Android, Store, App Player, all the users must have an iTunes account.
The system to have an account is mandatory as per the regulations of the Apple company. If you have any of the iOS devices from the Apple company, then it is mandatory to have an iTunes account to use its services.
Now, having different accounts will not be beneficial for the user as he will have to remember too many IDs and passwords. So, it is recommended that the users should have a single or minimum two iTunes accounts.
Creating an account on the iTunes Download app is not at all hasty and is completely free of cost. We have discussed the steps to create an iTunes Account for our readers in this section. According to the mode you choose, there are three modes for the account setup.
Read the methods carefully and try any of them:. There are many apps from the iTunes Store that require account details and the ID is recorded. Either of these methods will end up having the successful iTunes account.
This is one of the most unique and awesome features of iTunes Download App in the iPhone or iPod devices. Users can send their friends or family members cool virtual gift cards. The iTunes Store also provides e-cards that users can send to other users to express some feeling.
If you have the iPhone or iPod and do not know how to respond to this feature, then read this section of the article to clear your doubts. First, you must install the latest version of the iTunes on your device.
If you do not have one follow the sections above to conquer that part. Then what you need is an Apple account ID. In order to purchase items from the iTunes store, the user must have an Apple ID.
Next, is the most fun thing of all. When you redeem the gift card, you inherit the credit. For this, you need to turn the card over to the back side and scratch for the code.
Enter the code and your gift card amount will credit to your account. The next screen will come with the exact card details and will ask you to confirm redemption. You can also send e-Cards to your friends using the credit amount or by purchasing from your account payment.
The iTunes support live internet Radio for its users. Though it is significant to mention that the service is only available in the US nation as of yet. The iTunes Radio is an alternative to the music purchases that one has to make through the iTunes Store.
It has lots of features and advantages over the local Radio channel application. If you have an iOS device, make sure you have installed the latest version of the iTunes download app in it.
Here are some more system requirements for the proper functioning of iTunes Radio:. Thanks to the iTunes Radio, users can use online streaming of music anytime they want. In the iTunes Radio, there are ready-made channels and users can create their own channels too.
The channel mixing is also an extra advantage to get a huge amount of endless music collection. Having said much about the iTunes Download app, we must understand that every great app has some drawbacks.
Likely, iTunes Store, and other features of the iTunes App are associated with few minor flaws. Of these problems, some are as follows:. No built-in bindings system exists on iOS. Key-value observing can be built upon to perform data binding, either with the use of a third-party library, or writing additional code.
The UWP platform handles data binding for you. Data Binding UI Automation. Programmatic access to UI elements, making apps accessible to assistive technology products and enabling automated test scripts to interact with your UI.
Text labels, contentDescription and hint values help ensure UI elements can be found by automation. The Automation instrument allows you to write automated UI test scripts which identify elements using the accessibility settings or the element's position in the element hierarchy.
Custom Automation Peers allow you to provide automation support for your own custom UI classes. Changing the appearance of a control. Editing size, color and other attributes. Controls have properties which can be edited using the designer tool, in XML markup or programmatically.
Controls have attributes which you can edit using the Attributes Inspector in Interface Builder or programmatically. Add controls and handle events Reusable visual styles. Apply visual changes to a number of controls, in a reusable format.
XML styles are sets of properties that are applied to one or more controls. You can create reusable styles, which can be applied to multiple controls and stored in a ResourceDictionary for easy reuse.
Styling Controls Editing the visual structure of controls. Customize the visual structure of a control beyond just modifying properties or attributes, e. No simple method of editing the visual structure of controls exists in Android.
No simple method of editing the visual structure of controls exists in iOS. To customize the visual structure of a control, you can copy and edit its control template in XAML markup.
Control Templates Built-in touch gestures. Provide customized touch support by handling high level abstracted gesture events such as tap and double tap in views and controls. Gesture detectors detect common touch gestures including scrolling, long-press, tap, double-tap and fling.
UIKit framework provides built-in gesture recognizers which detect touch gestures including tap, pinch, pan, swipe, rotate and long-press. UI elements allow you to handle static gesture events including tap, double-tap, right-tap and holding, as well as manipulation gesture events including slide, swipe, turn, pinch and stretch.
Gesture events are routed events and can be handled by parent objects containing the child UIElement. The layout defines the structure of the user interface. Layout is composed of view groups such as the LinearLayout and the RelativeLayout which can nest other view groups or views.
Properties are used to control the size and position of the elements. Presenting the user with methods of navigating between pages of equal hierarchical importance. Tabs, swipe views and navigation drawers provide lateral navigation.
Tab bar controllers, split view controllers and page view controllers allow navigation between views of equal hierarchy. Navigation Navigate between two pages Hierarchical navigation.
Navigating between parent and child pages of a hierarchy. Lists, and grid lists, buttons and other controls provide descendent navigation when used with intents to load other activities.
Navigation controllers allow users to navigate between levels of a hierarchy. Hubs let you show the user a preview of content which can be selected to navigate to child pages. Navigation Navigate between two pages Back button navigation.
Navigating back through an application. The back and up buttons inside the action bar provide ancestral and temporal navigation using the back stack. The navigation controller can have a back button added to it.
You can handle software or hardware back button presses easily using the back stack property which allows your users to traverse the navigation history. Back button navigation Splash screen.
Showing an image on app launch, used primarily for branding. Splash screens are not provided by default, and are implemented by editing the first activities theme background. You create a splash screen using an image and colored background.
Splash screen time can be extended. Speech recognition for speech input, and additional voice capabilities. Speech input can be provided by any app which implements a RecognizerIntent, such as Google Voice Search.
Apps can use the SFSpeechRecognizer class to implement speech input and speech recognition. You can use the speech recognition API to interact with your app in the foreground.
Speech interactions Custom user inputs. Handling keyboard, mouse, stylus and other inputs. Support for interactions includes touch, touchpad, stylus, mouse and keyboard. Movements and inputs are reported in the same way as touch, but it is possible to detect more information about the input device.
Support for touch, the Apple Pencil and hardware keyboards are provided. Your apps can handle the data without needing to know which input device was used, and raw input device data can be accessed if needed.
Storing settings and files related to your app locally. Local files can be saved using openFileOutput and openFileInput. Settings in a shared preferences file can be accessed using getSharedPreferences.
Local files can be stored in the application support directory, accessed via the NSFileManager class. Settings in preferences files can be accessed by the NSUserDefaults class.
Storage classes handle local data storage for you in a unified way. You store files in a StorageFolder object accessed via the ApplicationData. Store and retrieve settings and other app data Local database storage.
Storing app data in a relational database, with object-relational mappers ORM if applicable. The SQLite database is provided. No ORM is built-in. You can store data using SQLite. Entity Framework is a built-in ORM which eliminates the need to write lots of data access code and enables you to easily query the database without writing SQL.
Platform-provided backup services for app data. Android's backup manager handles the backing up of application data in Google's Android Backup Service. Guidelines for roaming app data HTTP file downloads.
Downloading large and small files over HTTP. You can also use HttpClient which is ideal for smaller files. Networking basics Which networking technology? Provide two-way communication between a client and server, enabling real-time data transfer.
No built-in WebSockets libraries exist on Android. No built-in WebSockets libraries exist on iOS. Secure connections to servers supporting WebSockets can be made with the MessageWebSocket class for smaller messages with receipt notifications and StreamWebSocket for larger binary file transfers which can be read in sections.
WebSockets overview OAuth libraries. OAuth libraries allowing access to third party OAuth providers, and any account management built into the platform. No generic OAuth library is provided.
The accounts framework provides access to user accounts already stored on the device such as Facebook and Twitter. The generic OAuth library Web authentication broker lets you connect to third-party identity provider services.
The Credential locker allows your users to save their login and use it on multiple devices. Authentication and user identity Windows. The toolset used to create your app.
Visual Studio also provides you with emulators for Windows 10 devices, so you can test your app across a range of emulated devices. Downloads and tools for UWP Code organization. The basic folder structure of an app, often created from an initial template.
AndroidManifest file, java folder containing source files, res folder with resources including layouts and values, Gradle build scripts in Android Studio and Ant build scripts in Eclipse.
Source files and Supporting Files, Info. Images are stored in Asset libraries. Each activity has its own activity lifecycle with states such as resumed. Lifecycle callbacks such as onResume are implemented in in your activity classes.
The application lifecycle has states such as suspended. Methods such as applicationDidEnterBackground: You can implement the Application class methods OnLaunched, OnActivated, Suspending or Resuming in your app to run code when the state changes.
App lifecycle Background tasks. Tasks that perform background operations and continue to run when the app is no longer in the foreground. Apps can launch services which perform background operations when the app is no longer in the foreground.
Services have their own lifecycle and are registered in the manifest. Background execution is only permitted for specific task types. Apps declare supported background tasks in the Info.
The system controls when background tasks are run and for how long. You can create a background task by implementing the IBackgroundTask interface and registering the task in the application manifest.
You can set a task to be triggered with a timer, system trigger, and maintenance trigger. Guidelines for building apps that are fast, responsive, considerate of battery life with a fast startup time.
Android provides the Best Practices for Performance training guide. You can read the detailed Performance guide with sections covering topics such as; setting performance goals, measuring performance, memory management, smooth animations, efficient file system access and the tools available for profiling and performance.
View optimization for a responsive UI. Improving performance by optimizing views. Optimizing layout hierarchies using the Hierarchy Viewer tool, reusing layouts and loading views on demand are all techniques to help keep the UI thread responsive and avoid "Application Not Responding" dialogs ANR's.
Fixing UI issues with offscreen rendering, blended layers, rasterization using the Core Animation tool help keep the UI thread responsive. You can easily optimize XAML markup and layouts by following a few simple steps.
Techniques include reducing layout structure, minimizing the element count and minimizing overdrawing. Use of threading to maintain a responsive UI and run multiple tasks in parallel. You can work with threads by submitting work items to the threadpool with RunAsync.
You can use a timer to submit a work item with CreateTimer and create a repeating work item with CreatePeriodicTimer. Submit a work item to the thread pool Use a timer to submit a work item Create a periodic work item Best practices for using the thread pool Asynchronous programming.
Avoid threading complexity by taking advantage of asynchronous programming patterns to keep the UI thread responsive. The use of threading is required to create your own asynchronous classes.
Some built-in classes are asynchronous. The use of threading is required is required to create your own asynchronous classes. You can use asynchronous patterns to avoid blocking the main thread when you create your own APIs, e.
You can use the asynchronous built-in APIs which end in the word Async. Built-in patterns to aid with optimizing lists of data, which often have poor performance when large amounts of data need to be shown The ViewHolder design pattern is used to avoid multiple view lookups, which allows you to use reusable UI elements.
A range of optimizations can be made to improve the performance of UITableView, nothing is built-in. You can use the ListView and GridView controls which provide UI virtualization out-of-box, providing a smooth panning and scrolling experience and a faster startup time.
You can also implement IList and INotifyCollectionChanged in your data source, providing data virtualization and further improving performance. Platform features that allow users to make purchases in your apps.
In-app billing is provided by Google Services. Products are added to the Google Play Developer Console. In-app purchases are implemented with the Google Play Billing Library. Products are added to iTunes Connect.
In-app purchases are implemented using the StoreKit framework. You create in-app product purchases for your app by adding them to your app and submitting them to the Store. You use the CurrentApp class to define in-app purchases.
Enable in-app product purchases Consumable in-app purchases. In-app products which can be purchased, used and then purchased again. Consumable purchases are enabled by making a regular purchase and then consuming it with consumePurchase, enabling it to be purchased, used, and then purchased again.
Consumable products are defined as consumable products in iTunes Connect. You can support consumables by defining their product type as Consumable when you submit them to the Store.
You then call CurrentApp. ReportConsumableFulfillmentAsync after a consumable purchase has been made to allow the customer to access it. Enable consumable in-app purchases Testing in-app purchases.
Enabling you to test your in-app purchase code without putting your app in the Store. The in-app billing sandbox is used for testing. Sandbox tester accounts are used for testing. Enabling you to easily limit content or remove advertising based on a trial version of an app.
Google Play doesn't officially support app trials. Trials or removing advertising is achieved by creating an in-app purchase and taking the appropriate code path when confirming the purchase was successful.
The App Store doesn't officially support app trials. You can offer a free trial version of your app by using the 'Free Trial' option when submitting your app to the Store.
You can then use LicenseInformation. IsTrial to check the trial status of the app and present different code paths accordingly. You can register for the LicenseChanged event to be notified when the user changes the trial status while the app is running.
Supporting different screen sizes with a flexible height and width. Flexible layouts can be achieved using the adaptive model with universal Storyboards, making use of Auto Layout with constraints and traits such as horizontalSizeClass and displayScale which are applied to view controllers.
You can create a fluid layout using layout properties and panels with a combination of fixed and dynamic sizing. Supporting different screen sizes with separate targeted layouts.
Providing alternative layout files for different screen configurations in the resources directory using configuration qualifiers such as small, large, ldpi, and hdpi allows you to target custom layouts to screens of varying size and density.
Define a separate iPhone and iPad Storyboard to tailor layouts to different device families in a universal app. You can build a tailored layout by defining different XAML markup files per device family.
Responding to changes in screen size, such as rotation, or a change in the size of a window.
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