Questions tagged as 'android-studio'

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How to request GPS data in Android Studio

I have created an html page in which I show a map , the page opens well in the pc browser In Androdi Studio with a clase Fragment I show the page from the webview , but unlike the pc browser that shows the page if I want to sh...
asked by 01.02.2018 / 20:19
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Problem with VOLLEY accents

private class DescargarNoticias extends AsyncTask<Void, Void, Void> { public void onPreExecute() { } public void onPostExecute(Void unused) { } @Override protected Void doInBackground(Vo...
asked by 11.01.2018 / 08:44
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How to link material buttons desing to social networks?

My problem is as follows, create a menu with Material desing and I do not know how to link the url of my profiles to the buttons that are displayed BELOW I LEAVE MY CODE <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:...
asked by 14.03.2018 / 20:56
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Android Studio problem with the Nexus 5x Api 25 emulator

I need help with android studio, when the nexus starts 5x api25 I get a warning    pixel launcher still not working and gives the option to close the app. check if you have what it takes and it looks good I'm a novice in this of the sc...
asked by 28.12.2017 / 15:47
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Toast Problems Android Alerts

I have these codes in my MainActivity.java I intend to show a toast type alert with a duration of one second and that if I give it 50 times and I stop pressing it does not keep appearing, that the previous ones are canceled.They do not appear wh...
asked by 15.01.2018 / 18:59
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project advanced calculation, android error: "java.lang.NullPointerException at java.lang.StringToReal.parseFloat (StringToReal.java:285)"

I am creating a project in android studio, in the first instance the app asks the user what kind of calculation he wants to do, after that he asks that he provide a certain amount of data, because there were many divided into three activities...
asked by 23.01.2018 / 06:21
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Send Json by Volley

I need to send something similar to this: "nuevo": [ { "idusuario": "1", "idcuenta": "2", "calidades": [ { "id": "1", "peso": "100", "cajas": "5" }, ] } ] Do I need to...
asked by 14.06.2018 / 01:51
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Problem when switching from a second activity to a third AndroidStudio

Good morning, I'm practicing with AndroidStudio and I want to make an app with several activities , the case is that from the main to the second happens perfectly but from this second to the rest the application closes with the following e...
asked by 30.11.2017 / 20:13
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Can I make an adapter with an activity?

I'm a novice programmer and I'm practicing creating screens and other things, including a ListView. The case is that I created 3 activities, the second screen (Activity) is linked to a third one that says nothing and I wanted to take advantage o...
asked by 05.12.2017 / 02:59
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error when running window in android app in versions less than 7

I have problem executing window in application with android less than 7 I can not find the error or incompatibility I leave the logcat code FATAL EXCEPTION: main j...
asked by 14.11.2017 / 23:25