Questions tagged as 'xamarin.android'

Tagged questions
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Event Handlers Removal

In a Xamarin.Android plication application, is it important to remove the Event Handlers when exiting the screen to avoid memory consumption? Would it be a good practice? For example, in OnCreate() of one of the screens of my ap...
asked by 25.07.2018 / 14:00
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Zxing does not read CODE 128 barcode with more than 8 characters [closed]

I need some help, I made a code to read barcode from the camera of the cell phone. When I put more than 8 characters in CODE 128 the system does not read. In other formats Read but in code 128 no. What can it be? Here's an example and how's my c...
asked by 08.06.2018 / 06:06
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Xamarin Forms Android - Change Toolbar Background

I'm trying to change the background color of the Android Toolbar in a Xamarin Forms application. Expected result: CurrentResult: Styles.xml<resources><stylename="MyTheme" parent="MyTheme.Base"> </style> <style n...
asked by 08.05.2018 / 19:05
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My Xamarin is only working in the debug version!

During my applications, my xamarin started to run only in debug, when I change to solution release, it continues using the debug. Already tried to restart the pc, download the project again, change some configs, but NOTHING. Has anyone had this...
asked by 20.04.2018 / 22:04
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Difficulty in listing SQLite result in ListView Android

I'm creating an application to train mobile development, I'm doing for Android in Visual Studio, using Xamarin. I'm having trouble listing an SQLite result. I created two activities, one to do the registration and already list, and the other...
asked by 08.02.2018 / 22:23
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How to get Json's return from the Hgbrasil Weather site in my Xamarin application

How do I get the values available in Json format in my Xamarin application. The code below is not returning anything. public class MainActivity : Activity { ProgressDialog dialog; TextView txtv1; protected override void OnCre...
asked by 31.01.2018 / 20:58
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How do I show a message after a send action?

I'm trying to get the Android app to display a "successfully sent email" message after an email, which is linked to the send button action, to be sent correctly. I tried to show a Toast, but it shows before the email is sent. Follow the code...
asked by 19.10.2017 / 11:58
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How to identify the applicationId?

I'm implementing FireBase in my project, but when registering my application in the FireBase console it asks for the name of the applicationId in>). help page appears the following message:    In general, the name of your package is...
asked by 17.08.2017 / 20:47
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How to do this layout in Xamarin

What structure should I use to make this layout? It's a listView or gridView , I do not know how to do this part of SOM , When I put listView , it appears only aligns from below, not from above!     
asked by 15.08.2017 / 14:14
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Reducing the size of the photo

I'm recording the photos taken by my application in the sqlite database, I know it's not very recommended anymore, I need to transfer these photos to a central database that unifies all data in all applications. The way I'm reducing and writi...
asked by 06.07.2017 / 21:11