Questions tagged as 'android'

Tagged questions
2
answers

Error connecting Bluetooth printer Andoid Studio

I am new to the programming in android studio, I am generating an interface to connect a Bluetooh printer with the help of the included SDK but when calling the method that made the connection I generated the following error, an expert that coul...
asked by 28.02.2018 / 23:56
0
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Volley Headers Customs Java Android

Testing in my app I notice that the headers of my app do not reach the server, I have the following method private ObjetRequest<BaseRequest> objectRequest; objectRequest = new ObjetRequest(1, "", BaseRequest.class, "", new Respo...
asked by 14.02.2018 / 21:15
0
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Efficient way to connect to an external DB [closed]

I am creating an application on Android. I have a TextAutoCompleteView . What will be better in performance for the application? Bring a JSON with the query that I need to the database and upload it to a list, to then compare it wi...
asked by 11.02.2018 / 18:19
1
answer

Error Android Plugin with id 'jetty' not found

My question is this. I just created a project and it does not let me synchronize the Gradle, it puts me all the time that it does not find the jetty plugin, I tried to download the gradle version, change the classpath, ... but doing this tell...
asked by 12.02.2018 / 19:44
1
answer

Error opening the Android studio database

I'm doing an application where I use a database. I miss this error 02-17 02:25:56.504 21955-21955/dev.mros.espanyaapp E/AndroidRuntime: FATAL EXCEPTION: main java.lang.RuntimeExc...
asked by 16.02.2018 / 22:59
0
answers

Upload stream by ftp

I have this function that uploads the image of a signaturepad via ftp to a folder; the situation is that the file actually goes up, but it is not the image as such, I do not know what I can miss: private async void onSaveAsync(object sender, E...
asked by 16.02.2018 / 22:48
1
answer

Zxing QR Codes android

I am following this answer for the use of a perzonalized layout link summarizing the amount of all libraries maven { url "https://raw.github.com/embarkmobile/zxing-android-minimal/mvn-repo/maven-repository/" } compile '...
asked by 16.02.2018 / 17:39
1
answer

How to fill a personalized ListView dimanicamente in android?

I am trying to fill a list in Android dynamically with a FOR The ListView is filled in manually like this: Lista_productos_categoria lista_productos_categoria_data[] = new Lista_productos_categoria[]{ new Lista_productos_categ...
asked by 21.03.2018 / 20:52
1
answer

Content ViewPager is deleted when exiting the fragmen and returning with the button back

I have several fragments which have several tabs, the problem is that when changing the fragment and returning the button behind the navigation bar, the content does not appear, only the bar appears with the titles of the tabs. This is my tab...
asked by 21.03.2018 / 20:46
2
answers

How to change the title name in the toolbar? And how do I center it?

I would like to know how to change the title of each activity (I have eight different activities) in the toolbar. I have created a toolbar.xml <android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android...
asked by 21.03.2018 / 20:45