Questions tagged as 'android'

Tagged questions
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Send message via whatsapp programatically [closed]

I tried some codes but I did not get anything yet. I'm raising the possibility of sending one-on-one by looping. Does anyone know how? Follow the tutorial I tried link link Detail: I just want to send, not start a chat! In this case...
asked by 22.08.2014 / 12:20
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Android display a screen only the first time you open the application

Is there a way to run a specific screen (such as ID) the first time the application is opened? And every time I launch an update in google play, people who already have the app installed and reopen after the update, will the idle screen be displ...
asked by 12.05.2015 / 14:23
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Hybrid Android Apps. Is performance loss so great?

Someone there has already developed hybrid apps for Android and can you tell me if the performance loss is great? I have already read in various articles on this web as there are problems such as delay in the touch event, possible slows, etc. If...
asked by 20.02.2014 / 11:38
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How to set negative values for SeekBar from Android?

I'm using Xamarin to develop for Android in C # and checking the component documentation SeekBar vi that it only has a "Max" property, and that the minimum value for the component is 0. How would it be possible to make SeekBar accept negati...
asked by 12.03.2014 / 02:22
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Error when another class calls method of an Activity

In monitoring it sends an SMS to an equipment that responds with another SMS and refresh the screen and at the moment it calls the method to refresh the screen of the error. Error Log: 01-14 22:45:30.907: E/AndroidRuntime(8661): FATAL EXCE...
asked by 15.01.2015 / 02:54
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Is it possible to create a Horizontal Android ListView?

Problem I need to implement a horizontal ListView to create a horizontal navigation bar on my Product Gallery in my Sales Catalog. With the intention of making the navigation more intuitive and easy on the part of the users. But t...
asked by 25.07.2014 / 14:33
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Change button color when clicking on it or when validating text fill

Hello everyone, I'm having a hard time making the button change color when the% co_of% s fields are filled in and return to the initial color when the fields are empty and also change color when pressed. Code snippet in EditText : senh...
asked by 26.10.2014 / 07:39
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Upload web version of a website and not the mobile version in a WebView

How to load WebView from Xamarin.Android a complete site? He is bringing the mobile version. Example: I'm talking to WebView go to link And it's bringing: link     
asked by 14.03.2018 / 14:31
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How do I get my app to appear in the (share via) menu of android?

How do I get my app to appear on this screen?     
asked by 09.07.2018 / 20:19
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Download file using react native

I have an Android app that when running accesses a file and lists some information on the screen. The point is that it only works if you have internet. What I need is to download the information and save it on my device to be accessed offl...
asked by 16.01.2018 / 03:58