Questions tagged as 'android'

Tagged questions
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Image create and modify

Good morning classmates! First of all I told you that I am a beginner in Android, I use android studio. In my Android project I have an image in the path: app/assets/imagen_origen.png and I have to make a copy of image_origin.png to...
asked by 24.08.2018 / 14:51
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Export data to excel, and then send it via email. Android Studio

I come to ask you for a hand, I am developing an application for diabetics. In which there is a button called "Enter new record" where they are loaded (Date, BMI, Glucose, weight, etc). The idea is to save that information so that in a button ca...
asked by 25.08.2018 / 00:31
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Save a listview when you close the application and retrieve it when you open it

I have a custom listview, where each element has 6 TextView and 3 buttons, and a LinearLayout with a background that changes color. I need to know what would be the best way to save all the listView at the time the app is closed and to be able t...
asked by 24.08.2018 / 01:21
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How to implement LocationListener in MVP Clean architecture?

Hello everyone I have just started in MVP clean architecture and I have a question about the implementation I made of an Asynctask and a class that returns me to locate it using only gas, if someone knows how to improve the code and if I am comp...
asked by 29.08.2018 / 15:56
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Two volley queries in the same Android class?

Good I have this query to an external url, the results realize the set and get to a recycler. The issue is that I need to make two more queries of this style. How could I achieve these consultations in the same class? Thanks private void Carga...
asked by 23.08.2018 / 12:35
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How to fix the first row in a TableLayout

I am working on Android Studio with TableLayout, I am showing data and I would like the head (name of the columns) to be fixed in such a way that when I do Scroll horizontally everything moves but when I do a vertical Scroll, just move the data,...
asked by 29.08.2018 / 23:43
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layout_columnSpan of GridLayout with code

I have an app with a GridLayout with several rows and columns and I want the columns and rows to be combined with each other (they expand) depending on a certain entry, meaning that this change was made through code: I want the rows to...
asked by 23.08.2018 / 21:35
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Problem not having an image in Firebase Storage

I have an app where companies can register and have the option to upload an image of their company to show in the profile, the problem is that if they do not upload the image to the Storage, when I perform an action in the Activity I jump the fo...
asked by 23.08.2018 / 20:38
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Start application when turning on the device

I am developing an application with push notifications using one signal + ionic + firebase, the idea is that the application can receive push notifications at all times. I already get notified when the user closes it (the app is in the backgroun...
asked by 20.08.2018 / 16:08
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keep data from a recycler view when exiting and reopening the shared preferences app

Hello, how are your colleagues? My question is how do I keep the session and the data of a recycler view within an activity? I have tried with sharedprefrences and it brings me the data that I store, but not the necessary data for the recycler v...
asked by 20.08.2018 / 15:41