Most voted "app" questions
App (short for "application software") denotes software developed for a specific user application, running in a manner dependent on a system software platform. The term is commonly used for mobile applications.
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answer166
viewsHow does social application integration work?
Lately it has become increasingly common to integrate applications of various types into social networks, such as Facebook, Twitter and even Github. I wanted to understand how this integration…
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answer170
viewsHow to center content on the screen depending on your mobile device with intel xdk?
Good night, I’m developing a mobile application with intel XDK with bootstrap framework, I need to know how I can put my content centered on the screen on each type of smartphone and resolution that…
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answer58
viewsDoubt in app creation
I’m creating a mobile app phonegap/Cordova in which I need to search the name of a location, phone and address and find it on a map. I am in doubt if I use phonegap/Cordova Geolocation or the google…
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answer62
viewsConditional Change of Activity
Hello, I have a problem, I want to create a conditional on an Activity, inside a button, to open another Activity in my app. But how would that parole? My app has buttons in main Activity that leads…
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answer91
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answer758
viewsPhonegap build is not compatible with php. How to access a database?
I created an html website and accessed the mysql database by php. I passed the application to my android through the adobe cloud phonegap build and I realized that it will not fetch the data by php…
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answer118
viewsAndroid - How is gen folder generated?
I created a program that uses a base project to generate other projects. The applications have the same functionality, what changes is the layout, the images, the names of the packages, etc. The…
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answers78
viewsUnwind Segue - Objective-c
In the application I am working, there is a Viewcontroller where the user logs in, after logging in, is shown a welcome Alertview, and at that time, would have to return to the main screen, where…
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answers64
viewsProblem with AVD resolution
I set up according to the course I’m doing sent, but it sucks the resolution of my AVD.…
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answers178
viewsIonic framework 2 (Build problem)
Hello, I’m trying to build an app on Ionic, but any app I try to build, it generates an app just with maps, I wonder why?
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answer165
viewsApplication to manage database in Raspberry pi
Hello. I need to develop an application for Android, to extract and delete a mysql database in a pi Raspberry, being in the same network. I thought about doing it per ssh, however, I never developed…
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answer222
viewsDoes Valueeventlistener count as a simultaneous connection in Firebase?
If my application in Firebase has 5 users and they all have a valueListenerEvent on, waiting for some change in the database, do I have 5 connections simultaneously? For example, in a chat using…
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answer142
viewsINTEL XDK + IONIC error while installing apk
Good afternoon, I’m developing a study app... I followed the tutorial videos of FULL STACKER DEVELOPER and modified as wanted. The app works on localhost and on intel xdk Simulator (using an online…
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answers76
viewsHow to Resolve App Shutdown Problem?
I’m creating an app in Android Studio and whenever I test it to see the progress it does not run, takes a break. app (app name) stopped. In Logcat appears this: W/Dynamitemodule: Local module…
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answer56
viewsUpdate apps by Android Studio
I made a app In Android Studio, I ended up publishing it on Google Play. now I wanted to know how can I update it? What are the necessary steps? Just change app in android studio and compile as…
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answers96
viewsWarning: mysqli_fetch_array() expects Parameter 1 to be mysqli_result, Boolean Given in
Good afternoon guys, I’m trying to find out why this mistake... I’m grading all the help you can give me; Warning: mysqli_fetch_array() expects Parameter 1 to be mysqli_result, Boolean Given in C:…
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answers29
viewsHow to test the application on Iphone? Xcode 8 beta
Good morning, I’m doing an application on Xcode 8 beta do not have license for developer (U$ 100), as I do to test on my iPhone ? You have some tips to facilitate my tests? Thank you.…
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answers80
viewsBattery Power per App
I need to create something that measures the usage since the last full charge per app, I have no idea how to do... I searched and found nothing. All help is welcome, Thanks in advance.…
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answer939
viewsHow does Date Picker and Time Picker work in android Studio?
I am developing a consultation marking app and it seems to me that these two methods are very good. However, I wonder if when implementing the two methods in android studio, admin will be able to…
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answer76
viewsForms of monetization in applications
What ways to monetize apps you use ? And which are the easiest to apply?
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answer793
viewsError while running App on Android Studio 2.3
When I run (both in Android emulator on PC and smartphone) the App returns the following error: <p>Installation failed with message Invalid File:…
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answers84
viewsinformation for creating apk
EDITED: Developing an app that needs to communicate with an external server with "private information/registration" information transfer, I need php to maintain security as it is done on an online…
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answers884
viewsHow do I run IONIC 3 app on the IOS emulator?
For android worked well, then tried to use the same standard for IOS and could not. 1 - Ionic Cordova Platform add Ios 2 - Ionic Cordova run Ios --Emulator Gave the BUILD SUCCEEDED but did not run…
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answer588
viewsImplement recaptcha in an Ionic app
I tried to use all the plugins I found to check (captcha) within my application. I am using the Ionic framework. I wonder if there is a plugin that works inside the html code in this case. Some of…
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answer265
viewsError in adb.exe running "Ionic Cordova run android --device"
I’m trying to run my app on mobile and gives this error: Until yesterday it was working and had already tested on mobile several times. When I updated Ionic started to appear this message adb.exe. I…
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answer88
viewsgoogle login problem on android
I’m having a lot of difficulty logging into google with android, I have an app, in Ordova, configured my app, I have credentials in google. I’m following this example:…
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answers37
viewsError creating PHP connection
When creating the connection Activity in the Connection.getRequestMethod("POST") field; does not accept the Post method. I’m new in the field, could help me? public static String postdados(String…
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answer378
viewsRecover Contact List Name List on an android Edit
All right, guys ? I have a problem in the development of an app, because when I call his registration screen before I want to take the name and phone of the selected contact and send to the Activity…
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answers198
viewsFirebase - Filterable - Search View
I’m developing an app, I use Firebase as a database to store registered customers. So I have a Listview that shows these clients, shows their name and number. What I need to do is a search, put the…
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answer521
viewsCreate buttons in a grid layout
I would like to know how it is possible to make a Activity as a grid menu... Which type of layout is most advisable? A relative, linear, grid or table? Example of what I need: No need for banners,…
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answer112
viewsFirebase: App rebooting alone
I’m developing an android app, and I’m using Firebase’s Realtime Database to store the data. There I have a user node, with all the users I have registered through my App. When I make a change to…
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answer147
viewsHow to integrate an App to an ASP.NET Webservice (ASMX) via Xamarin?
Good morning, I have an sql server created with an Asp.net web service, but I wanted to know how I do so that I integrate the server data creating an app for you to read using the GET request.…
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answers131
viewsWebview + Print App
I created an APP that opens a site where I log in, so I fill a spreadsheet at the end by Google Chrome it generates a print command (I can choose to save or print). In my app I do everything when…
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answer132
viewsHow to make a deserialize in a Json with C-Sharp
I have the following code private void WbRanking_DownloadDataCompleted(object sender, DownloadDataCompletedEventArgs e) { RunOnUiThread(() => { string json = Encoding.UTF8.GetString(e.Result);…
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answers813
viewsStart an app with a screen that isn’t Main?
Hello, I wonder if it is possible to start an application with an Activity that is not the main Activity, and from it call the main, as a kind of login to access the main menu, or even a…
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answer85
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answer41
viewsAndroid: Listview loses information/status when you put the app in the background
Good afternoon, I have an android application that fills a listview with certain information, and in this listview there is a validation that changes the color of the line according to the priority…
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answer212
viewsFirebase SWIFT and Storage Image Gallery
Good afternoon, I’m finishing a APP developed in Swift 4, with Xcode 9 and Firebase. I can already log in with Firebase, and e-mail through my App, what I need to do, which I’m not getting at all is…
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answers13140
viewsReact Native - Pass data to another component
I’m having a question, I’m starting with React On and I’m building an app that contains some components and uses React-navigation. The doubt is as follows: From this component that renders several…
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answer33
viewsAndroid App Creation Problem - Java
I need to ask a number of questions, for a problem that was imposed on me, regarding the creation of an Android application in Java. To describe the circumstances, I am creating an app to serve my…
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answer66
viewsUpload app to Apple Store
I’m trying to upload an app to the apple store using Xcode 8, but I get the message that it’s no longer possible to upload to the apple store using Xcode 8. From what I searched, it’s possible to…
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answer560
viewsError uploading apk to google play console
I’m uploading my app to google play and I’m not getting my apk up, anyone knows what the mistake is?…
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answer53
viewsURL with "app" instead of "www"
Some web applications such as CRM’s (https://app.hubspot.com/ - https://app.moskitcrm.com/), start the url with "app" instead of "www". I would like to know if these are applications that are…
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answer39
viewsProblems with hotkey to open and hide the interface using "Application.Current" (C# WPF)
The following code works without problem I made it based on the code available on the internet of Sirmestre, however it only opens/closes the Mainwindow UI, I have tried some things to work but…
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answer3215
viewsError creating an application with create-React-app
I installed the create-React-app all right, but when tried to create a project using the command create-React-app hello-world of the following error:…
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answer126
viewsMake my website open in the app automatically when accessed by Browser
i have an Android app made in Android Studio, and a simple webview, what should I do in the app to recognize the site and open it in the app ?
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answer141
viewsRegister button for the application
I’m developing an app and it has user registration and login, I’ve done a lot already, but every time I click the button to register user, the app to, could anyone help me? Follows the code. Class…
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answers317
viewsUpdate APP in Google Play Console
Good afternoon. I’m having a problem updating my already released app. I updated his grandle and now when I try to release a new update he presents the image below: I’ve checked the app key and it’s…
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answers22
viewsThe app terminates unexpectedly when I run the database
I made an application in Android Studio that inserts into the sql server database some registration data. When I give a send, the app closes unexpectedly. package imports public class…
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answer63
viewsApp tablayout does not appear when operating on Mobile
I’m creating an app that has a Tablayout with three Tabs that should return specific fragments each. However, when I test the app on mobile none of the tabs are shown, which makes it impossible to…