Questions tagged as 'android'

Tagged questions
2
answers

Render problem in android studio, does not show components

I just created the project and it does not show my action bar, nor the textview that I just put, it sends me that message of render problem, I hope you can help me, it's the first time this happens to me, and maybe it has to do with which...
asked by 25.06.2018 / 18:16
0
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Problem with fourth level height of ExpandableListView android studio

I have a small problem with my ExpanableListView, it has 4 levels. 1.- dates 2.- Locations 3.- Streets 4.- Lots When I want to expand the fourth level this is not shown. Use, according to guides, the onMeasure method as follows: public Seco...
asked by 26.06.2018 / 22:20
0
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Problem with Layout

Very Good, I'm starting to use android studio 3.1 The problem is that when I want to add an element as a text or a botton I can not see it on the Layout screen. What could be the problem?     
asked by 26.06.2018 / 17:38
1
answer

How can I detect that there was an error when connecting to a wifi?

In my application I ask you to connect to a Wi-Fi network, but there are times when the user puts the password wrong because we are human. I want that if this happens put a warning sign. Is there any way to know this? It must be because the oper...
asked by 25.06.2018 / 13:03
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How to fill in expandableListView from room database

I am trying to fill a multi-level expandable ListView (three levels, for now), I can fill the first level (header), but only show the first item of the second level and none of the third level the queries I make to the database are: @...
asked by 25.06.2018 / 17:22
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How to generate pdf reports from mysql on Android

Good morning to all, I am new to Android programming, I'm making an application that brings data from a database and I want to create a pdf report from an Android application     
asked by 25.06.2018 / 09:52
1
answer

Obtain data from a Fragment within an Activity

I have an Activity in which I register the users and in this same Activity I have a Fragment that shows me the map of Google Maps, what I want is to be able to pass the data I collect from the Google Maps Fragment to the Activity for be able to...
asked by 25.06.2018 / 17:37
0
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Display remote database data with Volley, Android

I am currently loading all the data in the table in a ReciclerView and everything goes OK. Now I want to do a search by name I modified the .php, leaving it as follows: // post para recoger el nombre $nombre=$_POST['nombrecito']; // inten...
asked by 09.07.2018 / 16:17
2
answers

How to call a fragment from an Android RecyclerView?

As you can call an un fragment when you select an element of my RecyclerView, I already search the internet and no method works for me. I would appreciate your strong response, I urge a lot. Thanks My Adapter's code public class ReciclerAda...
asked by 24.06.2018 / 02:26
1
answer

How to set the "summary" attribute of a Preference from its persistent value in Android

I am developing the preferences for an Android application, for this I have created the file "preferences.xml" where I set the preferences and its summary from the default value. <EditTextPreference android:key="pref_ciudad" android...
asked by 20.06.2018 / 17:29