Questions tagged as 'android'

Tagged questions
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Using Broadcast Receiver with DownloadManager

I'm learning how to use DownloadManager with BroadcastReceiver to know when the download is complete. The problem: let's suppose I'm going to download 2 PDFs on one page, I register 2 Receivers, that is, one for each PDF, then I...
asked by 04.09.2016 / 18:06
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Data Listing Android Chart

Good morning, I have an application where I can view customer data in the form of a listing and a graphic, I wanted a suggestion from you which component I could use in mobile to view the data in graph form. Thanks in advance for your atte...
asked by 01.08.2016 / 15:11
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Error clicking a button to access site

I tried to make the user click on a particular button, it was directed to a website, in this case google, but it did not work. The app starts normally, but when you click the button the app stops at nothing: Thisappearsintheeventlog:NullP...
asked by 14.01.2017 / 01:04
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Permission denied when accessing gallery image [duplicate]

I need to allow the user to choose an image from the gallery and for this I'm trying to get the application to ask the user for permission. I created the variable ok to give the user permission, if everything is right, its value is set...
asked by 22.08.2016 / 19:21
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Camera appears with black screen. Error fail to connect to camera service

I'd like to open the camera, but without the buttons that appear normally, I'd like to add my own buttons and assign features to them. I searched but found no answer. The buttons I'm going to add will only redirect to another activity, it's n...
asked by 20.08.2016 / 18:00
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Error publishing app on Google Play

I'm trying to post Apk, but enjoy this error message O envio falhou Você fez o upload de um APK depurável. Por razões de segurança, desative a depuração antes de publicá-lo no Google Play. Saiba mais sobre APKs depuráveis.. Use um nome de...
asked by 19.08.2016 / 19:46
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Pick view position on screen and apply to another view

I'm trying to make a transition effect when I open a DialogFragment but for this I need the photo ( CircleImageView ) of DialogFragment to be in the same place as the photo of Activity that opens it. If it is not clear...
asked by 25.08.2016 / 21:34
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Regular expression to identify text box in HTML form

Situation Give yourself a HTML page where you will find a form containing two text boxes, one for the name and one for the email. Then there was the need, to do some tests on Android, to get only a snippet of the code and play in a list, but...
asked by 28.08.2016 / 21:34
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NullPointerException error [closed]

   Caused by: java.lang.NullPointerException        at DAO.Database.ScheduleReview (Database.java:184) This error was displayed in my logcat . The method: public boolean verificaSeTemRegistroNaTabela(String tabela){ String...
asked by 17.11.2016 / 19:56
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Help with connection to database sql server 2008 and android

I followed a tutorial on the connection of Android Studio with SQL Server 2008 r2 (already existing), with which I could make the connection normally, but I have a problem. I can make the connection to the bank if the connection to the bank is s...
asked by 22.06.2016 / 14:23