Questions tagged as 'android-studio'

Tagged questions
2
answers

error with mainactivity.java

Folders error and in the mainActivity also error. it indicates a class (R.) which does not allow me to access the id of an xml Then the errors:     
asked by 03.08.2017 / 05:34
1
answer

Why do I get this error when compiling my project in Windows?

Good morning, I am trying to compile my android project in Windows since the development of it was in Linux but when trying to run the application I get this message. I do not know if something similar ever happened to someone.  ...
asked by 04.04.2017 / 17:42
1
answer

How to make a form on android and send the information to an email?

Hello I am creating an android app and I want to create a contact form that was sent to my mail I would like you to help me I am new to this. thank you very much     
asked by 05.09.2016 / 22:43
2
answers

Consuming a JSON from android What's wrong? [closed]

I'm trying to get a Json from a web resource and convert it to string to show it on the screen. I am using android Studio for this and I can not consume that resource. Any idea that is wrong PS: In the manifests I have added the INTERNET and ACC...
asked by 18.10.2016 / 13:11
1
answer

Error while Launching activity in the Android Studio emulator

I have running the native emulator running Android Studio 2.1.2, I find that only once does the application load me into the emulator, and the following times I give it to compile I get the error:    Error while Launching activity     
asked by 12.07.2016 / 14:31
3
answers

Elements stacked Android Studio

I'm starting in Android Studio (2.3), I made a program with 4 elements (sum of numbers) but at the time of executing it, the elements appear on the top left and I can not manipulate the program, what should it be? Thanks     
asked by 24.03.2017 / 02:54
2
answers

Route recent projects android studio 2.3

Good morning, I had android studio 2.2 and when I opened the menu of recent projects the route of the same ones came to me at the top. As well as showing in , now when I'm in the recent menu shows the route below and how the route is very long...
asked by 23.03.2017 / 12:44
2
answers

Why does my app stop when using this line of code?

This is the code of my database class. public class SQLite_OpenHelper extends SQLiteOpenHelper { public SQLite_OpenHelper(Context context, String name, SQLiteDatabase.CursorFactory factory, int version) { super(context, name, factory, vers...
asked by 08.11.2018 / 19:29
2
answers

How to call specific fields Firebase Database Android

Good morning, I have this model private Button verdosis, verhipo; private String Lista="dosis"; private String lis2="Hipoglucemia"; private TextView textViewf,textViewhipo; FirebaseDatabase database = FirebaseDatabase.getInstance(); FirebaseD...
asked by 26.09.2018 / 18:45
1
answer

open an Activity from another Activity

Good morning everyone I develop an app in Android studio but I have a problem opening an activity and that is when I touch a button, it is supposed to send me to another screen however when I do that, the app closes, I followed the steps I've se...
asked by 23.07.2018 / 06:40