Github Android Carouselview

viewpager view slideview slider rainman positionselectedcommand github forms carouselviewrenderer carouselview Xamarin. For example, Android used to referenced: Xamarin. 2 works with 2141 ms speed. GitHub Gist: instantly share code, notes, and snippets. Like this: (Image). This library is updated version of Android 3D Carousel. I think there should be a way to set swipe tolerance so carouselview does not wake up. I ran the sample on an Android 6. My main phone is an Android and as a news app I use a 3rd party aggregator that, al nearly all Android apps today is based on Material Design. We will use circular dot navigation indicator to tell user which slide number is currently going on. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy. [Android] ListView scrolls to the top as you swipe right and left on the CarouselView bug #258 [Android] On Property changed not fired when carousel view is inside ViewCell (Listview) #183. はじめに Xamarin Formsで以下のようなUIを作りたくて、Carouselコントロールについて あたふた したのでブログにメモっておきます。. GitHub is home to over 28 million developers working together to host and review code, manage projects, and build software together. Forms, Xamarin. You can also follow the CarouselView Issue there. 1 For projects that support PackageReference , copy this XML node into the project file to reference the package. The Android ViewPager has become a fairly popular component among Android apps. As such I. Tutorial using PlaceHolderView. CarouselView is a view for presenting information in a carousel-like way. You probably want your project and solution to use the same name as your app. Forms XFPagedCarouselView for Xamarin. jpg e doce4. 56 bugs on the web resulting in android. Imagine you have a very long list of items you want to display, maybe several screens worth of content. of Xamarin. LoginRegistrationPage contains a CarouselView and its first page is the registration form, while the second page is the login form. dotnet add package CarouselView --version 7. Hello! New post for Windows 10 and Raspberry Pi 2 series Hardware and software (1 on N) Boot from SD card in the device (2 of N) Hello World mode! (3 of N) Visual Studio deployment process and Web Management app (4 on N) Hello Blinky !!!. zip; 170407 341k 0 Isometric drawing library for Android https://github. GitHub Gist: star and fork victorkifer's gists by creating an account on GitHub. You now have a basic Xamarin. Sliding Gallery View supporting both images and videos, for android applications. x on GitHub (npm) Release blog post Changelog This is a major release that includes the new reloading experience Fast Refresh. xml located under res ⇒ values and add the below color values. There are no charting controls in the Xamarin. When I run this on iOS, it is working perfectly, but when running on Android, it is getting crashed. A debug build apk of your app to be sent to [email protected] Android Image Slider Using ViewPager Example In this tutorial you will learn to make android image slider using ViewPager and PagerAdapter. JavaProxyThrowable. Put it in your preferred folder for projects and click Create. Now we will discuss how to create android image slideshow by extending android pagerAdapter. In CarouselView on Android, scrolling to an item by object doesn’t work. org has expired. 當您需要讓使用者可以在螢幕上,透過手勢左右滑動,看到不同的資料內容,如下圖所呈現的效果。 這個時候,您可以選擇使用旋轉木馬 CarouselView 這個控制項,要使用這個控制項,您需在方案中,加入這個 NuGet 套件到所有的專案內,此時,請在 NuGet 套件安裝視窗中,輸入 Xamarin. Using it everyday I couldn’t ignore a nice UI feature it exposes: it’s share button (a Material Design’s FloatinActionButton) fades out when you scroll the list vertically and it reappears when you scroll the list down. GitHub Gist: star and fork paour's gists by creating an account on GitHub. It has all the XAML pages, ContentViews, converters, etc. Android Keystore System; Verifying hardware-backed key pairs with key attestation; Android Protected Confirmation; Supporting Direct Boot; Using scoped directory access; Running embedded DEX code; App security improvement program. Dispose Null reference Unhandled Exception: #210 [iOS] Exception thrown on Dispose #233. CarouselView paket add Naxam. Please report any issues you encounter on GitHub. Based on how Android works, I’d infer that what happened here was that the layout inflater wanted to get thru all of the items in the XF CarouselView so it could calculate the device size and then properly set the height of the view. CarouselView control for Xamarin Forms. Also it handles growing heap memory by flushing the memory. A library for carouselview to display 2D fancy carousels for Android. Beginning with Android 3. CircleIndicator library. But in last tutorial I stored android images to MySQL database. 0-pre NuGet (available via your favorite NuGet package manager using the pre-release option). Ensure that your projects are on the latest version of Xamarin. carouselview github, carousel view example, xamarin image carousel, xamarin forms carouselview source, xamarin forms carousel view indicators, xamarin. Objectives of This Tutorial. How to select multiple images from the Native Gallery How to display the selected images in a CarouselView How to upload the selected images to Azure Blob Storage You can get the source code on. In order to access the Xamarin. MessagingStyle class, you can change several of the labels displayed on the notification, including the conversation title, additional messages, and the content view for the notification. Android - Image Switcher - Sometimes you don't want an image to appear abruptly on the screen, rather you want to apply some kind of animation to the image when it transitions from one im. Build beautiful, usable products faster. bingoogolapple / BGABanner-Android bingoogolapple / BGAFlowLayout-Android kingideayou / TagCloudView. activity_calendar. Github #7443 - "[Bug] The CarouselView does not snap by default" Github #7453 - "[Bug] CollectionView Header not displayed without Footer" Github #7519 - "[Android] Setting ItemSpacing for LinearItemsLayout does not work" Github #7524 - "[Bug] Android CollectionView GridItemsLayout Span with Binding does not work anymore". The control is rendered fine on Android, but not on iOS. I posted issues on the gitHub project page about slight changes I had to make to even get the lists to. CarouselView Naxam. This search view can be use to search the content in a list view This search view can be use to search the content in a list view. 在游戏商店里,我们可以有两个不同软件包同名的应用-Android 使用Google API"选择目标无效-abi armeabi-v7a" 从外部存储加载位图时出现OutOfMemoryexception 如何在android中顺利旋转地图视图 如何刷新ListView以重新查询其光标以重新填充其数据及其视图 Android WebView性能 Android getActivity()总是在片段内返回. Additionally, RefreshView, which is the basis for pull-to-refresh functionality, is in progress and is one of our current top priorities alongside CarouselView. Learn Programming Together cardview carousel layout library viewpager Making Carousel Layout in Android. ( I have only tested on Android so far) The sample contains a carouselview with 10 views and a button at the top which adds pages to the start of the observable collection like so: Items. 4-pre5 GOOD Forms 2. Android installed, selecting a Xamarin Mobile Shared App creates four projects; one for each platform: Windows Phone, iOS, and Android, and a Shared project that automatically links all file in the shared project to the platform specific projects. Ask Question Asked 5 years, 6 months ago. -> If you don't want to handle vertical swipes or they interrupt your scrolling, you can set IsVerticalSwipeEnabled = "false"-> If all these tricks didn't help you, you may use IsPanInteractionEnabled = false This trick disables pan interaction, but preserve ability to swipe cards. Vertical Stepper Form Library for Android. Insert(0, string. CarouselView for use on both iOS and Android using Xamarin. A debug build apk of your app to be sent to [email protected] I don't find the word which would explain what I want to say! 1. Each cell is is a contentView that contains an AbsoluteLayout that contains two images and a label. CarouselView. I also use shell structure in my project. Create carousel view with ViewPager. 56 bugs on the web resulting in android. We use cookies for various purposes including analytics. Ariel Ariel Ben Horesh looks at it's form component for creating UIs. A library for carouselview to display 2D fancy carousels for Android. Como primeiro exemplo, vou exibir 4 imagens de doces no controle CarouselView, e, como vou testar apenas no Android, temos que incluir na pasta Resouces/drawable as imagens: doce1. A debug build apk of your app to be sent to [email protected] As with any app that has a need to display products or services, or show off its new features, you're more than likely going to want a carousel view within your app, its a staple of UI that you'd think Xamarin would have by default right?. xml里面写代码,虽然在build时不会有error出现,但是会有烦人的warning出现,导致我们在dll里面找不到我们需要使用的class) 今天我们就是要解决这个问题. explain better in a commit message, don't remove class author and add your data in a header of class. All libraries shown below have complete documentation with great details and easy to implement for any developer. It offers real-time database, different APIs, multiple authentication types and hosting platform. GitHub Gist: instantly share code, notes, and snippets. Please note. CarouselView for use on both iOS and Android using Xamarin. 2 works with 2141 ms speed. Created attachment 15763 Repo Case I have attached a small sample. LoopingViewPager. Here is the free link of CarouselView Github Link and Android Arsenal. It assumes you have a basic understanding of Xamarin and Android already, and goes through what happens when Android starts your app, up until the MainActivity. I tested with the following versions: Forms 2. In this tutorial we are going to learn how to crate android GridLayoutManager with RecyclerView in Material Design. Alternatively, if you want to update an existing project to the Xamarin. 227 on nginx/1. tons of open sourcetons of integration work 7. CarouselView has been having a bunch of issues lately and I am not sure how exactly all of a sudden Xamarin decided to add it to the 4. For more information refer our documentation. I already published tutorials about how to upload image to server from android. Contact Bugs and Feature Requests Paket dependency manager. Follow along: if you wish to follow along with this blog post you can clone and run the sample from GitHub. Platform Xamarin. Learn how to use CarouselView in Xamarin Forms apps to flip through images and items. Have a look at this: #pull/5044, CarouselView will be merged into Xamarin. Source Code : Accidentally Deleted while cleaning up hard drive Hello guys, In this tutorial I will be showing you how to create Onboarding screen in Android Studio from scratch without using any. md for details on our code of conduct, and the process for submitting pull requests to us. You can also follow the CarouselView Issue there. (Androidx support enabled). You now have a basic Xamarin. 1 For projects that support PackageReference , copy this XML node into the project file to reference the package. When we are developing Xamarin with Android, iOS and UWP apps but now Xamarin. Android, Xamarin. buildingMore With Less with android bootstrap 2. NET from a single shared codebase. Prior to fragment introduction,. Is this something the Xamarin team acknowledged and being worked on to fix it?. Listen to The Xamarin Podcast episodes free, on demand. This blog is a demonstration for creating a Carousel Picker in Android by taking an example of the Carousel Picker made in PSLab Android app under PR #1007. Using the NotificationCompat. Forms(Android) memory leakage with default Image-Views). Whether you want a consistent look across platforms or prefer native look and feel, Xamarin. Could you please confirm, comment whether 1, your app has any memory leakage (I have seen on another GitHub CarouselView repo, that it had a Xamari. Neste post irei demonstrar como criamos um CarouselView no Xamarin. I posted issues on the gitHub project page about slight changes I had to make to even get the lists to. gradle: dependencies { compile 'com. android:clipToPadding. A debug build apk of your app to be sent to [email protected] Carousel merupakan komponen yang menampilkan slideshow dari kumpulan data, pada umumnya data beruga gambar. When I try to swipe, I am swiping the CarouselView items underneath with the first item stuck on top. In contrast, the CarouselView is really optimized on each of the platforms, allowing you to swipe through many items with a simple, making use of just an ItemsSource and a. md for details on our code of conduct, and the process for submitting pull requests to us. 继上一篇Android学习资料收集得到不少响应,你们给了我很多动力,因此我决定再整理下GitHub上前100的Android开源库简介,希望对你们有所帮助本项目主要对目前GitHub上排名前100的A 博文 来自: weixin_34150224的博客. Some improvement to this would be to add custom animation to the ViewPager and adjusting the ViewPager sliding speed. Just set ToFadeDuration = 2000 (2 seconds delay before disappearing) Yoy manage LeftArrowControl and RightArrowControl as well as IndicatorsControl (ToFadeDuration is presented too). Forms XFPagedCarouselView for Xamarin. Creating JS components and native views for everything all at once, much of which may not even be shown, will contribute to slow rendering and. CarouselView está disponible en Xamarin. It can display your files as a group of different folders in project structure view. We use cookies for various purposes including analytics. If dynamic size is needed, please wrap the itemview by a fixed-width container and adjust by custom transform as a workaround. Ask Question Asked 5 years, 6 months ago. It follows Google Material Design guidelines. CarouselView:Android旋转视图。这个库是 Android 3D Carousel的升级版本。 访问GitHub主页. On Android this is used to achieve the look and feel of the CardView. Defines the relationship between the ViewGroup and its descendants when looking for a View to take focus. I previously blogged about the CarouselView and how it is taking over the CarouselPage in 2. When my application opens, the CarouselViewFormsPlugin actually works as I want. org has expired. 4-pre5 GOOD Forms 2. OK, I Understand. Migrating from CarouselView 1. GitHub Gist: instantly share code, notes, and snippets. ScrollView renders all its react child components at once, but this has a performance downside. Problems we were afraid to encounter was the swipe handling by the android, and everything is actually working just fine on almost any device. CalendarActivity. Forms TabbedPage. We can use my favorite library for tutorial compile "com. Cirrhosis of the liver refers to scarring of the liver which results in abnormal liver function as a consequence of chronic (long-term) liver injury. Apps often need to display data in similarly styled containers. Look at most relevant Carousel view in android sample code websites out of 42. Unity along with all their dependencies. LoopingViewPager. CarouselView doesn't work on iOS I have tried to implement Xamarin. This is an introductory tutorial, which covers the basics of the Firebase platform and explains how to deal with its various components and sub-components. xml里面写代码,虽然在build时不会有error出现,但是会有烦人的warning出现,导致我们在dll里面找不到我们需要使用的class). NET, App Center, and Azure. The role of Order property depends on platform, on Windows Phone using Secondary creates MenuItems, on Android it adds entries to Page menu and on iOS render menu as horizontally aligned buttons. 2 is too! There's something cool called Boots that will keep your feet dry in the pool of continuous integration and Azure Functions now has Dependency Injection!. I am working for a PCL project where I have the carouselView in my design page. It isestimated that 1. But in last tutorial I stored android images to MySQL database. CarouselView is available in Xamarin. CarouselView has been having a bunch of issues lately and I am not sure how exactly all of a sudden Xamarin decided to add it to the 4. NuGet packages were added to these projects for Xamarin. 自动轮播视图(CarouselView)的核心思想就是这些,其他具体代码就不在这儿贴出,文末留出GitHub地址。在实现中,遇到一些问题或是新的,总结如下: 在自定义布局中,OnMeasure方法不是100%会被调用的,这个布局的大小是否已经被约束;. CarouselView for use on both iOS and Android using Xamarin. My last post was on Android RecyclerView and CardView in Material Design Tutorial. It offers real-time database, different APIs, multiple authentication types and hosting platform. I don't find the word which would explain what I want to say! 1. O objetivo do CarouselView é que os usuários possam deslizar de um lado para o outro a fim de visualizar uma lista de conteúdo, como uma galeria de fotos por exemplo. How to select multiple images from the Native Gallery How to display the selected images in a CarouselView How to upload the selected images to Azure Blob Storage You can get the source code on. Forms version( < 3. Can someone give me an example of a simple carouselview with 3 steps? Preferably some example without using nuget library. Learn how to use CarouselView in Xamarin Forms apps to flip through images and items. For example, Android used to referenced: Xamarin. CarouselView is a great new addition because it allows you to add a carousel to nearly anything that can hold a view, so you are no longer limited to whole pages as with CarouselPage. The Android ViewPager has become a fairly popular component among Android apps. 10 For projects that support PackageReference , copy this XML node into the project file to reference the package. Apps often need to display data in similarly styled containers. One list is 48 items, the other is 32 items long. Sign up A wonderful library to display 2D fancy carousels for Android. Based on how Android works, I’d infer that what happened here was that the layout inflater wanted to get thru all of the items in the XF CarouselView so it could calculate the device size and then properly set the height of the view. ChatMessageView helps you to create chat message view quickly like a typical chatting application. Contribute to alexrainman/CarouselView development by creating an account on GitHub. Click the Play button to try it out. Advancing gastroenterology, improving patient care. Contributing. Dispose Null reference Unhandled Exception: #210 [iOS] Exception thrown on Dispose #233. Android Kotlin Image Slider tutorial with example is the main task of our right now. Now in android creating card views has gotten even more simpler. I saw this cool view in the Play Store for quite sometimes now and cannot help myself of creating one. I thought if it is possible to avoid a use of OpenGL. But in last tutorial I stored android images to MySQL database. Jason Smith, lead engineer of Xamarin Forms, gave a great talk at this year's Evolve. CarouselView doesn't work on iOS I have tried to implement Xamarin. SeekBar Tutorial With Example In Android Studio. js to register custom icons for your project or to access default icon shapes from a controller or another service. forms project. It can display your files as a group of different folders in project structure view. Some improvement to this would be to add custom animation to the ViewPager and adjusting the ViewPager sliding speed. Hi there, I am trying to create something akin to the tabbed page but within an existing page, the current plan is to use the Forms 4 Carousel View and make changes to another control to indicate the current view. dependencies { implementatio. This new release also includes other work that you'll see very soon in the next stable release of Xamarin. com/alexrainman/CarouselView. CarouselView is a view for presenting information in a carousel-like way. As Xamarin. “How to” at Github repository. When I try to swipe, I am swiping the CarouselView items underneath with the first item stuck on top. Now, select the blank app and target platforms - Android, iOS and Windows (UWP). Android Binding 源自github第三方库的绑定(中级教学)----aar文件,今天来个稍微复杂一点的源自github的android第三方库:CarouselView (今天我们依然不用在metadata. CarouselView 2. Support for square/rectangle, rounded square/rectangle, circle, heart, oval, triangle and star page indicator. CarouselView doesn't work on iOS I have tried to implement Xamarin. I previously blogged about the CarouselView and how it is taking over the CarouselPage in 2. Carousels | CarouselView by Nazar Ivanchuk (binaryroot) CarouselView. The Android Support Library includes three standard layout managers, each of which offers many customization options: LinearLayoutManager arranges the items in a one-dimensional list. I think there should be a way to set swipe tolerance so carouselview does not wake up. Paged carousel view for Xamarin. If you are the owner of this domain, log in so you can retrieve the invoice and renew the domain. Introduction to Android ViewFlipper. https://github. Github #7443 - "[Bug] The CarouselView does not snap by default" Github #7453 - "[Bug] CollectionView Header not displayed without Footer" Github #7519 - "[Android] Setting ItemSpacing for LinearItemsLayout does not work" Github #7524 - "[Bug] Android CollectionView GridItemsLayout Span with Binding does not work anymore". MediaSliderView is a compact library for having a slideable/swipeable gallery view inside your android application, which supports both images and videos. md file for details. Forms is an open source mobile UI framework from Microsoft for building iOS, Android, & Windows apps with. A carousel view containing the stats which was implemented using the custom-built CarouselView control for Xamarin Forms by Alexander Reyes. List of changes: Fixed touch gesture. CarouselView 2. You can find it on: GitHub NuGet Xamarin Component Store (update coming soon) What's new There have been several. I'm having trouble making the CarouselView control from AlexRainman. Imagine you have a very long list of items you want to display, maybe several screens worth of content. One list is 48 items, the other is 32 items long. I ran the sample on an Android 6. USSDNetworkService used to replace Android default one and get USSD messages results. Format("New page {0}", i)); Steps to reproduce this bug. Only horizontal scrolling is supported at this moment. App Center is mission control for apps. Its a container view, so you can add any type of message such as TextView or any customize TextView, ImageView, etc. As with material design a new view was introduced through the support v7 library, called CardView. Android File Grouping Plugin This plugin is very helpful in Android Development. population or about 4 million Americans are infected with hepatitis C. Now in android creating card views has gotten even more simpler. Firebase is a back-end platform for building Web, Android, and iOS applications. 继上一篇Android学习资料收集得到不少响应,你们给了我很多动力,因此我决定再整理下GitHub上前100的Android开源库简介,希望对你们有所帮助本项目主要对目前GitHub上排名前100的A 博文 来自: weixin_34150224的博客. 07-03 16:38:51. A simple library to add carousel view in android app. explain better in a commit message, don't remove class author and add your data in a header of class. Vertical Carousel Android Github. CarouselView into which the portable library has been merged. 0 (API level 24), Android provides a notification style template specifically for messaging content. dotnet add package CarouselView --version 7. Only horizontal scrolling is supported at this moment. Create carousel view with ViewPager. Unity along with all their dependencies. 227 on nginx/1. Use Trello to collaborate, communicate and coordinate on all of your projects. CarouselView. This tip helps you to understand how to implement an auto image scroller and handled OOM out of memory issue in Xamarin Android. In July 2017, I received a call from a former colleague asking me wether I wanted to begin a new app journey with him. This can be done by executing tns platform remove android (or ios) and then tns platform add android (or ios). In this tutorial I am going to show you how to implement Tab Layout in the Android Application using ViewPager and Fragments. Find a solution to your bug with our map. When the CarouselView has its ItemsSource binded on a list with multiple elements, by default the first element is displayed but ItemSelected or PositionSelected is not fired. 0-pre2 has a performance issue with ScrollView. List of changes: Fixed touch gesture. This library is updated version of Android 3D Carousel. [Update] Navigation arrows now supported in Android and iOS [Android] Fixing ViewRenderer constructor [Android] ListView scrolls to the top as you swipe right and left on the CarouselView bug #258 [Android] On Property changed not fired when carousel view is inside ViewCell (Listview) #183 4. We visualize these cases as a tree for easy understanding. iOS to improve your page performance and the response of UI. Earlier we have discussed, the working of android view pager by implementing FragmentPagerAdapter in Android Viewpager Example Tutorial. The readme file should contain a list of all libraries used. Android Image Slider Using ViewPager Example In this tutorial you will learn to make android image slider using ViewPager and PagerAdapter. GitHub Gist: instantly share code, notes, and snippets. Find a solution to your bug with our map. Learn how to use CarouselView in Xamarin Forms apps to flip through images and items. Put it in your preferred folder for projects and click Create. NET, App Center, and Azure. Forms(Android) memory leakage with default Image-Views). android:clipToPadding. NuGet packages were added to these projects for Xamarin. He went through a long list of performance tips, as well as a Q&A session. Click the Play button to try it out. Create a new Android project and name it as AndroidImageSlideShow. CarouselView but i have pretty the same problem of my previous post: If i load the carousel in the first Detail Page the app crashes, else if i open it by the menu of the masterPage is working perfectly (but is always a DetailPage, the difference is that I load it after an event and not at application start). iOS is fine, but on Android I get a blank page. The CarouselView was introduced on Xamarin Forms(2. Skip to content. Use Trello to collaborate, communicate and coordinate on all of your projects. CarouselView for use on both iOS and Android using Xamarin. You probably want your project and solution to use the same name as your app. Android Multiple Auto Image Slider Example Tutorial using Online URL Juned Mughal September 28, 2016 September 28, 2016 Android Examples Tutorials How to create image slider gallery with indicators left to right animation with multiple images. Using the NotificationCompat. Forms(Android) memory leakage with default Image-Views). The CarouselView is also now open source and can be viewed on GitHub at Xamarin. com is Android Gems. Can someone give me an example of a simple carouselview with 3 steps? Preferably some example without using nuget library. You supply an implementation of a PagerAdapter to generate the pages that the view shows. Hello! At the beginning of this year, I participated in a meeting with the general manager of Avanade Canada at the Microsoft Technology Center, where we presented our global Vision on technologies and trends for this year. [Android] Matching Xamarin. (Androidx support enabled). You can find it on: GitHub NuGet Xamarin Component Store (update coming soon) What's new There have been several. It isestimated that 1. slick is a responsive carousel jQuery plugin that supports multiple breakpoints, CSS3 transitions, touch events/swiping & much more!. 4-pre2 GOOD Forms 2. This post used the same concept that we will use on this post so there is no need to repeat what I have covered in detail before. Based on how Android works, I’d infer that what happened here was that the layout inflater wanted to get thru all of the items in the XF CarouselView so it could calculate the device size and then properly set the height of the view. Making Carousel Layout in Android please see it's Github. 10 For projects that support PackageReference , copy this XML node into the project file to reference the package. CarouselView --version 1. iOS to improve your page performance and the response of UI. explain better in a commit message, don't remove class author and add your data in a header of class. B4A library files - copy them to your additional library folder 2. CarouselView Control for Xamarin Forms Create Horizontal and Vertical carousels, add page indicators, navigation arrows and much more. LoopingViewPager. CarouselView Xamarin. Forms provides a custom ContentView allowing you to display paged carousel views in Android and iOS apps. Android, Xamarin. agenda open source libraries examples bootstrap 5. When the CarouselView has its ItemsSource binded on a list with multiple elements, by default the first element is displayed but ItemSelected or PositionSelected is not fired. forms project with Android Platform make sure your project name. Sliding Gallery View supporting both images and videos, for android applications. You can install Image Carousel via NuGet, or you can browse the source code on GitHub. This is an introductory tutorial, which covers the basics of the Firebase platform and explains how to deal with its various components and sub-components. This video was a part of a course that was never released. It assumes you have a basic understanding of Xamarin and Android already, and goes through what happens when Android starts your app, up until the MainActivity.