Questions tagged as 'android'

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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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Facebook: The parameter app_id is required

It turns out that I am developing an application using Xamarin for Android consumption and well, the problem is when I want to authenticate my app with Facebook, I followed this tutorial (I used the Xamarin.Auth package) link but I got the f...
asked by 12.06.2018 / 09:02
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fragment on android

Hi, I am using fragment in android and the problem is that from a button that has an activity it calls a fragment but the views of the activity overlap in the fragment this is the activity and when I pulse in the floatingbutton it ca...
asked by 02.12.2017 / 19:19
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error with edittext android java

Hello, I want to print by a message toast what I entered in an edit text. <EditText android:id="@+id/idprodtxxt" style="@style/Widget.AppCompat.EditText" android:layout_width="wrap_content" android:layout_height="wrap_co...
asked by 04.12.2017 / 02:34
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Rename the package of my project in Android Studio

I had a project for Android Studio, with a name "example001" both the folder where the project is, and internally the internal code that name, as I can change its name for example "Program X" I follow these steps, but not all names are change...
asked by 06.12.2017 / 10:42
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How can I generate an apk to test my app in native react

I have a project done with react-native and I've been testing it with expo, but I want to generate an apk to be able to see it on a device but I do not know how to do it, the react documentation is not very clear since it only explains how gener...
asked by 05.12.2017 / 15:58
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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
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ERROR - com.google.firebase.firestore.FirebaseFirestoreException: FAILED_PRECONDITION: The query requires an index

Good community, I'm starting to work with the new tool that has recently included FireBase, I mean Cloud Firestore. I'm trying to get a list of documents but I get the following error:    com.google.android.gms.tasks.RuntimeExecutionException...
asked by 10.11.2017 / 19:40
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Error opening my android studio project from another pc

I have a problem since I made my first application in android studio and so far I do not know how to solve it, my problem is that when I take my project to another PC (from the university) an error appears, I leave that error that appears...
asked by 10.11.2017 / 15:02
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Wait for retrofit to answer a call?

I have to do a Retrofit Call inside an adapter to compare information from two arraylist: public void checkguardadas(int id_usuario) { RetrofitService retrofitService = RetrofitService.getInstance(); PabloAPI api = retrofitService.get...
asked by 30.11.2017 / 11:31