Questions tagged as 'android'

Tagged questions
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Buy Functionality in App (In Billing) [closed]

I would like to make my app have the option to buy functionality. Type I made two apps, one paid (full) and one free (with advertisement). I would like the person to click to buy remove the advertisement and add the activities related to t...
asked by 09.07.2017 / 22:51
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Error sending data to Firebase

Good afternoon, I'm developing an application and I'm having trouble sending the data to Firebase ... I created a Cadastre screen where you have the email field, password and name. I imported the gradile compile equal to the firebase document...
asked by 10.07.2017 / 21:32
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When I roll my listView I lose the checked checkboxes

This is a code from my adapter, in it I have a textview and 4 chekboxes. The problem is that I believe I have to save the status of my checkboxes, so as not to lose their data, because when I roll my list view my checkboxes uncheck them alone....
asked by 03.08.2017 / 01:38
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Android calendar for weeks and months

I'm working with calendars on Android. The goal is to show the calendar for weeks and months . But the calendar I'm using only allows me to view month . xml code <android.support.constraint.ConstraintLayout xmlns:andro...
asked by 01.08.2017 / 12:39
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Bound Service using IntentService

I'm creating an IntentService with Binder, so I can communicate with this service from an Activity public class MyService extends IntentService { private ChatManager chatManager; private final IBinder mBinder = new MyBinder(); p...
asked by 31.07.2017 / 17:12
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PUT or database update

   How to update objects in my database via put json? This is my post code as an example, but I do not know how to do the put that is to update, I need it a lot public class onbuttonclickHttpPost extends AsyncTask<String, Void, String&g...
asked by 18.07.2017 / 15:47
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Google Maps API Location Button (Android Studio) not displayed

I'm developing a native Android app with the Android Studio IDE, which integrates with the Google Maps API. I noticed in several videos that when activating the property setMyLocation (True) should activate the location button (Top right corn...
asked by 31.07.2017 / 18:00
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Android Folder Structure

Hello! I am starting my studies in Android development, I am trying to list and link the folders of the Android Memory, either internal or external. I can already list and display in a Listview or LinearLayout, but how do I when the user clicks...
asked by 18.07.2017 / 03:52
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Questions about different android SDK

I'm developing an Android app, it's already published in the Play Store, but cell phones with the SDK version smaller than 21 do not appear when it's searched. In my project I set the minSdkVersion 21. When I switch to a smaller SDK, some met...
asked by 30.06.2017 / 20:37
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Toolbar disappears when I add another widget in activity

I created a Toolbar for MainActivity, as shown below: However,whenIaddanyotherwidgetinthesameactivity,thetoolbardisappearswhenIruntheemulator: Hasanyoneeverhadthesameproblemorknowhowtosolveit?Codetoolbar.xml:<?xmlversion="1.0" encoding="u...
asked by 01.07.2017 / 02:12