Questions tagged as 'android'

Tagged questions
1
answer

The navigation drawer does not open

I'm making an application in Android Studio, in which I use a NavigationDrawer. I have the problem when clicking on the button that would open the navigation menu does not, but it does allow me to drag the navigation from left to right so that i...
asked by 28.04.2016 / 18:08
2
answers

Error google maps api v2

I'm making an application that contains a map, using the google maps api v2, what the map does is show you your location and the point closest to you, looking at a series of previously saved points. The problem is that I have tried different...
asked by 05.04.2016 / 00:29
2
answers

Create a RecyclerView with horizontal and vertical scrolling at the same time

A few weeks ago I am learning to use the RecyclerView . My main intention to learn how to use it, was that I needed to implement a horizontal list, that is, when turning the device in landscape mode (horizontal) it appeared as follows:...
asked by 04.04.2016 / 18:22
1
answer

Error using Facebook SDK on android

I'm trying to login with facebook, this is my code MainActivity: package com.example.em645.loginfacebook; import android.content.Intent; import android.support.v7.app.AppCompatActivity; impo...
asked by 30.06.2016 / 17:53
2
answers

Delete an item from ListView and DB SQLite with OnItemLongClickListener

I'm trying to delete items from a ListView by keeping the click, which works but when I go out and go back into the activity, I reappear the items I deleted. I think this happens because I do not delete the element also from the Data Base,...
asked by 21.12.2018 / 14:04
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
1
answer

Problems with the toast in android studio

I am developing a small app that will show me a Toast when I click on a button. The problem is that I run the normal app but it does not show me the toast and it does not throw me an error either, it's as if I had not put it. I would apprecia...
asked by 22.10.2018 / 07:20
2
answers

I get the error RecyclerView: No adapter attached; skipping layout when I try to load a RecyclerView

I'm doing a chat, where I charge it through a RecyclerView. When I enter the chat, I should load the messages, but it does not, and I try to scroll in that recyclerView and I get the following message every time I scroll: RecyclerView: No adap...
asked by 21.09.2018 / 06:05
1
answer

Problem in insert SQLite

I have a project in android, in which I have to insert records in an activity and show them in a recycler, when I insert the message it is shown that it was inserted correctly, I must show that data in a second activity, when doing the query if...
asked by 22.09.2018 / 01:06
1
answer

Show Loading when loading url in mplayer class

Dear good morning, I am quite a novice in the development of mobile applications, I am learning and I need to be able to show a loading after launching my first image of the app in a Splash. That is, I have an app that launches a Splash, it l...
asked by 18.03.2016 / 18:13