Questions tagged as 'android'

Tagged questions
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How to recover the status of an Activity after closing it?

How can a button on android Change state available and busy and have memory? Example if I leave the application or if I use it in the background when I return to the main screen, remember its status.     
asked by 10.09.2016 / 01:34
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Automatic reconnection of bluetooth android studio

Good morning. I am developing an app in android studio, in which I connect via bluetooth to the printer. The detail is that if I leave the app the bluetooth connection to the printer is lost, and what I want is when I start the app I wi...
asked by 21.12.2016 / 17:03
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Error running App

I have an app developed in AndroidStudio to add some activities but when trying to execute I have the following error message:    Error: (3) Error retrieving parent for item: No resource found that   matches the given name 'android: Wi...
asked by 30.07.2016 / 00:39
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Image does not work correctly in android app

I am developing an app using HTML + JavaScript + CSS with Cordova. This app uses SVG images to better suit the different resolutions, but I run into a problem: although the images are displayed well on my computer and in the android emulator, wh...
asked by 02.08.2016 / 14:56
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How to return a data list of an asyncTask class?

I have an asynctask class in which I consult the data of a person in a webservice. How can you return that data to the class from which it was invoked. I have tried creating an interface class and implementing it in the asynctask, but it returns...
asked by 02.08.2016 / 22:21
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Automatically select a default tab android

It turns out that in my app I have 4 tabs, of which one of them is the profile of the person. I would like that when the user opens the activity that contains these 4 tabs, redirect only to the tab of the profile and not open automatically the f...
asked by 14.07.2016 / 22:00
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Disable native Android virtual keyboard in my [duplicate] app

I have an app that only contains a webview (and NOT an EditText). In the web that I use for the webview, I have my own keyboard designed by me, so I do not want the native keyboard of the cell / tablet to appear when I click a textarea or inpu...
asked by 16.07.2016 / 06:58
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Check Firebase. Android

I have a question about Firebase with Android I make the query by obtaining a string with the following result: String S= "{Centro 1={Wifi=458pohh875, Freedns=centrouno.mooo.com, Webkey=h64792390hyd}, Centro 2={Wifi=2910393, Freedns=centrodos....
asked by 07.07.2016 / 16:15
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Location mapsforge

I'm trying to get the location with mapsforge 0.6.1, but in the onCreate() method when assigning latitude and longitude I get this error:    E / AndroidRuntime: FATAL EXCEPTION: main                                                     ...
asked by 25.07.2016 / 00:56
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Change text in a TextView within a CustomArrayAdapter

I have a ListView with a CustomArrayAdapter with checkbox , within Onclick of checkbox in CustomArrayAdapter I want to modify the text of a TextView of Fragment , I tried this but I do not ge...
asked by 28.07.2016 / 20:00