Posts by Matheus Rodrigues • 319 points
16 posts
-
0
votes2
answers161
viewsA: When to use Livedata or when to use Rxjava (or Rxjava2 / Rxkotlin)?
Livedata contains some limitations in relation to Rxjava, for example the lack of thread manipulation, (What is solved in Livedata with the help of coroutines), the big advantage in turn of Livedata…
-
0
votes1
answer920
viewsQ: Import data to Firebase with JSON file
I am having problems with importing data to firebase, I transformed an excel spreadsheet into csv and then converted to a JSON file, the registration in Firebase is performed normally, but I would…
-
1
votes1
answer119
viewsQ: Problems with PHP and Xampp
I was mounting this api in php linked with xampp following this video(https://www.youtube.com/watch?v=8Ou1ERM2MOw&index=4&list=PLk7v1Z2rk4hjQaV062aE_CW68xgXdYFpV), but even if I follow…
-
2
votes1
answer716
viewsQ: Firebase reference error
I am developing an application in Android Studio and using Firebase as a bank, but after finishing the structure of the project when I went to test it accuses a reference error of Android Strudio…
-
0
votes1
answer255
viewsQ: Error while displaying information in Android + Firebase listview
I’m having two problems with this program... the first is that when registering it does not enter the first loop replay msm being td straight... it jumps and displays the message "no data"The second…
-
0
votes2
answers194
viewsQ: Nullpointerexception error using Boolean type
I’m having problems again with this project, the application runs normally opens the screen to register and everything, but when you click on the button to save it simply closes the app, but the…
-
3
votes1
answer285
viewsQ: Problems with Android Studio + Firebase
Well I am developing this app, to be able to display the information of a user in an arraylist, I run the code and it simply hangs and closes the app, I reviewed the code and found nothing, some…
-
1
votes1
answer280
viewsQ: Error android Studio + Firebase
I developed an application was registering and everything, but at the time I implemented the function to display the data in a Logcat, my application even stopped starting Activity. Has anyone ever…
-
3
votes2
answers3456
viewsA: How to create Android apps on weak PC?
You can try using the Intelxdk, it is much lighter...
-
2
votes1
answer90
viewsQ: Notification on a local network with Postgresql
I would like to know how to send a simple notification to users of a local network, send a notification to all other devices with the app connected to the Postgresql database...
-
0
votes1
answer129
viewsQ: Application to make emergency calls
I am trying to make q my application make an emergency call by clicking the button, however while running it presents the following error: ERROR: FATAL EXCEPTION: main Process:…
-
0
votes1
answer1041
viewsQ: Onclick problem, I cannot pass Array information to a text view
I’m having trouble inflating a list with information from the bank, I want to take the user information and set it in a list, but only with a type of data as a name, however it presents the…
-
1
votes2
answers328
viewsQ: Search and display in a listview a single type of BD information
I’m having problems to search for a single type of BD information, I’ve created a list where I bring all the information in it present, but I want to pull only one, for example search only the names…
-
1
votes1
answer120
viewsQ: Links within the application
I’m trying to get my app to make an emergency call and call a pre-defined emergency number, but when I open Activity she simply for already looked and redid the code 3 times, but the error persists,…
-
1
votes1
answer69
viewsQ: Error when bringing information from database
I’m having trouble bringing the information from the database and displaying it in a list, when executing the code to bring the information from the application BD to and the following error…
-
4
votes1
answer165
viewsQ: I can’t save the information to a local database!
I’m having trouble saving the information typed by the user in the Postgresql database, I developed an application in Android Studio and I’m using an external local database with Postgresql to store…