Android App Development Jobs

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Hourly - Expert ($$$) - Est. Time: Less than 1 month, Less than 10 hrs/week - Posted
I have a Xamarin Forms app delivered to both iOS and Android, iOS version is OK, but Android tends to crash sometimes. I have the crash report and need some advanced Xamarin developer to fix that issue (and probably review the app to give recommendation on fixes if required). The crash report is: java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState Method) android.os.Handler.handleCallback() android.os.Handler.dispatchMessage() android.os.Looper.loop() java.lang.reflect.Method.invokeNative(Native Method) java.lang.reflect.Method.invoke()$ dalvik.system.NativeStart.main(Native Method) Xamarin caused by: Java.Lang.IllegalStateException: Can not perform this action after onSaveInstanceState System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() Java.Interop.JniEnvironment.InstanceMethods.CallIntMethod(JniObjectReference instance, JniMethodInfo method) Android.Runtime.JNIEnv.CallIntMethod(IntPtr jobject, IntPtr jmethod) Android.Support.V4.App.FragmentTransactionInvoker.Commit() Xamarin.Forms.Platform.Android.AppCompat.NavigationPageRenderer.SwitchContentAsync(Page view, bool animated, bool removed, bool popToRoot) Xamarin.Forms.Platform.Android.AppCompat.NavigationPageRenderer.OnPushAsync(Page view, bool animated) Xamarin.Forms.Platform.Android.AppCompat.NavigationPageRenderer.PushViewAsync(Page page, bool animated) Xamarin.Forms.Platform.Android.AppCompat.NavigationPageRenderer.<OnElementChanged>b__30_0(Page p) Xamarin.Forms.EnumerableExtensions.ForEach<T>(IEnumerable<_> enumeration, Action<_> action) Xamarin.Forms.Platform.Android.AppCompat.NavigationPageRenderer.OnElementChanged(ElementChangedEventArgs<_> e) Xamarin.Forms.Platform.Android.VisualElementRenderer<TElement>.SetElement(TElement element) Xamarin.Forms.Platform.Android.VisualElementRenderer<TElement>.SetElement(VisualElement element) Xamarin.Forms.Platform.Android.Platform.CreateRenderer(VisualElement element) Xamarin.Forms.Platform.Android.MasterDetailContainer.set_ChildView(VisualElement value) Xamarin.Forms.Platform.Android.AppCompat.MasterDetailPageRenderer.UpdateDetail() Xamarin.Forms.Platform.Android.AppCompat.MasterDetailPageRenderer.Xamarin.Forms.Platform.Android.IVisualElementRenderer.SetElement(VisualElement element) Xamarin.Forms.Platform.Android.Platform.CreateRenderer(VisualElement element) Xamarin.Forms.Platform.Android.AppCompat.Platform.AddChild(Page page, bool layout) Xamarin.Forms.Platform.Android.AppCompat.Platform.SetPage(Page newRoot) Xamarin.Forms.Platform.Android.FormsAppCompatActivity.InternalSetPage(Page page) Xamarin.Forms.Platform.Android.FormsAppCompatActivity.AppOnPropertyChanged(object sender, PropertyChangedEventArgs args) Xamarin.Forms.BindableObject.OnPropertyChanged(string propertyName) Xamarin.Forms.Element.OnPropertyChanged(string propertyName) Xamarin.Forms.Application.set_MainPage(Page value) CallOfService.Mobile.App.<OnStart>d__3.MoveNext() Android.App.SyncContext.<Post>c__AnonStorey0.<>m__0() Java.Lang.Thread.RunnableImplementor.Run() Java.Lang.IRunnableInvoker.n_Run(IntPtr jnienv, IntPtr native__this) at (wrapper dynamic-method) System.Object:2a94c84b-b42c-481e-8b27-abb42bd93c13 (intptr,intptr)
Skills: Android App Development Xamarin
Fixed-Price - Intermediate ($$) - Est. Budget: $100 - Posted
Looking for a quick project (1 week or less) app that can be downloaded from the app store (android or ios) or can be accessed from the web. a simple form 5+ questions and the ability to upload a picture. I want to be able to edit the questions at will and share see a list of things submitted to delete or edit at will.
Skills: Android App Development iPhone App Development Node.js PHP
Hourly - Entry Level ($) - Est. Time: 3 to 6 months, 30+ hrs/week - Posted
We have a requirement for a Navitaire experienced contractor to work on either a native or responsive Navitaire development project. You will need to commit a minimum of 20 hours per week for next 2 months on the project starting next week. Please do not respond unless you have worked on and have extensive Navitaire web or mobile integrations directly and include a sample or outline of past Navitaire API experience.
Skills: Android App Development iOS Development Mobile App Development
Hourly - Intermediate ($$) - Est. Time: 1 to 3 months, 10-30 hrs/week - Posted
We are searching for a developer to create an app that is compatible with iOS/Android. Whether this is one person, or a different person for each platform is yet to be determined. I would like to discuss the bulk of the details in private, but what I can share about the project is this: - the app must be able to work standalone (offline) and in conjunction with a website - the app must be able to make use the of the phone's sensors - the app would best fit into Health & Wellness or Lifestyle categories - we currently have a beta version of the "app" that is being used on the web​ mobile app development​ iOS
Skills: Android App Development HTML5 iOS Development iPhone App Development
Fixed-Price - Entry Level ($) - Est. Budget: $50 - Posted
INFO: I need a bug fix to an existing App that I'm using in my lab (the project source code are attached to this description). This project is a fixed price paid, no upfront, once this bug is fixed. In the end send me the final code with instructions on what you changed so I can repeat (please write a document of instructions). If interested, send me your timeline on how long it'll take you to fix this bug. It should be easy for an experienced developer and I explain everything below. See attached document for instructions
Skills: Android App Development Java