ListView on Android, occasionally displays the wrong image
This issue only happens on Android - not IOS. When I have a lot of scrolling up and down, upon occasion, the image displayed is the wrong image. I can say it is the wrong image because when I tap on...
View Articleinstagram picture wall is very smooth
i try to do the same picture wall like instagram. but the performance is bad. slow scrolling , laggy showing picture(listview). or slow when adding layout to scrollview. i think instagram is a...
View ArticleIs there any way to get the notification (at specified alarm time) even after...
In my Android application, I am trying to fire an alarm after 10 mins. How to get the notification (at specified alarm time) even after the app is closed?.
View ArticleImages in ListView - best practices?
Hello. I have a few question about the best approach for handling images in ListView cells 1) If I have a background image that is shared in more than one cell, should I create it outside the cell and...
View ArticleAnimation / How to fade-out and fade-in images
I have a grid with several images and I would like to change some of the images every 30 seconds. How can I fade-out and fade-in images similar to jquery .fadeOut(). If not directly possible what is...
View ArticleMemory issue with ViewCell
I currently have a single page xamarin.forms project that switches out the contents of various ContentViews. While in the final stages of test I ran into some OutOfMemory issues in iOS (my main...
View ArticleBoxView displayed on iOS and not on Android
Hello, I am facing some troubles with a BoxView. I would like to put an image in the background with an opacity. This works perfectly fine on iOS but not on Android. The image is not displayed on...
View ArticleToolbar Items on Carousel Page
Hi guys, I'm trying to put a toolbar in my Carousel Page but it doesn't appear. Can you please help me? Is it possible to do that? Here's my code: void Home_Appearing(object sender, EventArgs e) {...
View ArticleForms.Maps detecting map pan, zoom, etc. events
I've added a Map to my ContentPage and need to know when the user has changed the VisibleRegion (i.e. moved, zoomed, etc.) so I can update the pins shown in the region. I don't see any events on the...
View ArticleImage 9 patch image not working
Hi all, I'm trying to use 9 patch images in a Xamarin.Forms project generated using the Android tool. But I'm not able to make them work as the Image control is not expanding them by default. I'm...
View ArticleListView ViewCell click animation (on Windows Phone)
Hi all, I have got the following ViewCell as Data template for my ListView: <ListView.ItemTemplate> <DataTemplate> <ViewCell> <ViewCell.View> <StackLayout Padding="15,5,5,5"...
View ArticleNavigation Page + Master Detail Page
Hi all, bit of an odd problem or maybe its just the way i'm trying to solve it. I have a Login page which can branch off to a regular content page (registration page) or a master detail page. The...
View ArticleHow to calculate the optimal font size, characters per line and the font family?
I have an application where I want an optimal reader experience. I found an excellent tool for calculating the best typography : http://www.pearsonified.com/typography/. In my application I'm building...
View ArticleProgressBar binding problem on WP
I'm binding a Progressbar to a property of type double (between 0 and 1) in my viewModel. On android it works ok but on Windows Phone it doesn't update. <Label Text="{Binding DistanceLeft}"...
View Articleexited abnormally with signal 6: Abort trap: 6 in Xamarin
I am facing the SIGSEGV exception in my application and my application is crashing on that. After 5-6 times tapping a button my app automatically crashes and gives a error of " Got a SIGSEGV while...
View Articleempty Collection
Hallo, If i bind the first row form a list like list[0] to a listview everything is working great. But when the list is null my app crash how to deal with this problem. I get the list from a rest...
View ArticlePush Notifications & Xamarin.Forms what service is best?
What is the most compatible server side solution/service for Xamarin.Forms and Push Notifications? I prefer use a simple BAAS like Parse. Parse would be perfect for me if they played nicer with...
View ArticleXamarin.Forms.Maps error
Hi all. I'm trying to use maps with Xamarin.Forms and I'm receiving a lot of errors. Apparently, all errors derived from that error: "package com.google.android.gms.panorama.PanoramaClient does not...
View ArticleException when loading Image from phone using ImageSource.FromFile("..") on...
Hi, I'm trying Building a very simple cross-plaform app - for all three platforms - that can show an image - that is stored on the phone - in a Image control. My app have two pages: The main page that...
View ArticlePop causing SystemException on Android not iPhone
I am not able to trace back to where this occurring in my code. The exception is being generated in external code. Message: Operation is not valid due to the current state of the object StackTrace: at...
View Article