Questions tagged as 'android'

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Create Forms on Android and how to treat them

I'm designing an application on Android and I need to create a form with many fields, my idea is to make a form with different sections and instead of doing all the sections in the same activity with a vertical scroll I want to create one or sev...
asked by 05.04.2016 / 16:07
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Implement Undo and Redo in an EditText on Android

As much as I am looking for, the EditText component does not integrate a Undo changes system, I would like to implement a system Undo/Redo ie Deshacer/Rehacer Or do you know a component that derives from EditText o...
asked by 26.06.2016 / 08:18
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What is the best way to generate the APK file of a project in polymer V1.0

I'm looking for a way to generate a .apk from a polymer project. I am working with version 1.0 specifically of the PSK generated with yeoman: yo polymer . I have tried with cordova and also with the project generated with yeoman: yo...
asked by 16.03.2016 / 21:31
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UnsupportedOperationException when adding object in a list

I am using a Adapter that extends from RecyclerView.Adapter to show information obtained from a query SQL . When I perform the query at BD I get a List<Inventario> . When entering a Inventario when...
asked by 18.02.2016 / 20:25
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Ksoap sending request in null

I have the following code using the Ksoap2-android-3.6.0 library @Override protected Void doInBackground(String... params) { try { SoapObject request = new SoapObject(NAME_SPACE, METHOD); PropertyInfo prope...
asked by 21.09.2016 / 00:28
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Replace listeners with RxJava

I am beginning to know the advantages of RxJava, and I would like someone to lend me a hand to get to the point. The issue would be to modify this code made with listeners: public void getData( final OnResponseListener listener ){ if(da...
asked by 07.02.2017 / 17:35
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Image in base64 by Webservice

Is it OK to load an image encoded in base64 by a REST service? charge the data of a business and send the image of that business already in base64 although I do not know if it is good practice to do so, I want to know if I am doing well, and if...
asked by 08.02.2017 / 20:32
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Synchronize phone book with my app

Would someone please help me with what would be the synchronization of mobile contacts with my application? I manage to obtain them through a code, but it turns out that they are repeated, so I see this is given by whatsapp, etc. Because I try o...
asked by 05.11.2018 / 22:49
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How to read a text file in a Fragment Android Studio

Good afternoon community, I wanted to ask the question, it turns out that I try to read a text file from a fragment but when I open it in the application I jump that the application stopped working, so I wanted to know if they could give me a ha...
asked by 10.01.2018 / 17:42
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how to access the ringtone per current with URI?

Hi, I'm doing a fake call app and I do not know how to use the default call tone that the phone has, I'm using uri to save the audio that the user of his music chooses, I just need the default tone prefs=getSharedPreferences("MisPreferencias",...
asked by 01.11.2018 / 04:38