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iOS Frequently Asked Questions
The iOS-related questions that get asked repeatedly, gathered together in one place. What does a new developer always ask at some point? What are the most common questions when someone is exploring a ...
- 101
Can you answer these questions?
View all unanswered questionsThese questions still don't have an answer
0
votes
0
answers
2
views
Godot Android program crash without logs
I have a Godot project (source, check 'compile_fail' branch) which crashes on startup, but for some reason only on Android; I can run it on PC just fine. video demonstrating this issue
Logcat does not ...
0
votes
0
answers
3
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combining multiple mutablestates
just started picking up Compose MP and have been running into difficulty combining 2 sources of mutablestates to a new mutablestate or flow within a viewmodel.
per documentation https://developer....
- 17
0
votes
0
answers
5
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Webview as overlay in Broadcast Upload extension
I am currently developing a screen broadcasting application aimed at assisting users in streaming games to social networking platforms. To achieve this goal, I am utilizing the Broadcast Upload ...
- 65
0
votes
0
answers
11
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Synthesize & play audio tones on android
I'm trying to write an android app that can simulate RC car sound. Looking to play bunch of frequencies together (aka Tone) but sinusoidal sum of those frequencies doesn't sound good, it sound ...
- 10.4k
0
votes
0
answers
10
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Is it possible to display a 3d path using latitude, longitude and altitude on a map?
I know it's not directly possible to do it with poly lines, however are there workarounds? Would MapKit allow to display a 3d object built in SceneKit directly on a map and allow rotating around it? ...
- 626
Looking for an extra challenge?
View all bountied questionsThese questions have a bounty on them
2
votes
1
answer
50
views
+100
How to keep drag preview exactly the same as original item?
Consider following simplified code for an element that can be dragged
HStack {
Icon(icon: .iconDrag)
Text("Title")
Spacer()
}
.padding(16)
.onDrag {
...
- 1.3m
0
votes
0
answers
28
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+50
How to test with Espresso if the popup of an AutoCompleteTextView is open or not in my Android activity
I have an AutoCompleteTextView in my Android Activity
In my espresso test, I want to check if the popup with the proposals is opened or closed.
How can I do that?
I have tried many ideas, including:
...
- 358
0
votes
0
answers
56
views
+100
Debugging MAUI issues from android playstore Crash details stacks
I have a MAUI application available on the playstore.
Google PlayStore has the "Crashes and ANRs" reports.
Because MAUI isn't exactly Java, I'm having a difficult time finding the actual ...
- 48.7k
1
vote
1
answer
96
views
+50
How to update Room database entry through UI?
I have an application that allows the user to add Goats with their details such as name, breed, age and gender and additional info. I just created a function in the GoatDao to update the goatInfo ...
- 1.3m
3
votes
2
answers
88
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+500
Setting the app langauge and sending to firebase config always using the device system language
I have an android app and using remote config.
I have this usecase and I want to send the app language change in that request. My app supports both English and Vietnam and the user can select their ...
- 851
Recommended answers
View all recommended answersThese answers have been recommended
0
votes
1
answer
15
views
ussd reader in Recket Native module
I have this code that opens a window for a phone I want when it doesn't open that window and send me the result send ussd to fronend in react native
class UssdModule(reactContext: ...
- 91.7k
Answer
Edited from original answer: It turns out they added support in Android 26 to make a USSD call. The function is TelephonyManager.sendUssdRequest. It does not exist on devices older than 26. And ...
View answer
- 91.7k
0
votes
1
answer
10
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How to read new child from firebase in an android app?
I am creating a app that will read data from firebase and display it on a map. The app keeps crashing because there are hell lot of records to retrieve from the database. I need a way with which I get ...
- 583k
Answer
It looks like you use push to add children to Data, which means you can use this approach to get only the most recently added child node: dbReference = db.getReference("Data"); Query query = ...
2
votes
1
answer
30
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Change file permsission on Android app programmatically
In my Android app, I want to create files preserved in case of app uninstallation.
I can create hidden file in
File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS), &...
Answer
You do not have rights to that file, and so you do not have rights to change the permissions of that file. A file in Documents/ can only be accessed by the app that created the file, and only for the ...
0
votes
1
answer
29
views
Turn on(Enable) GPS programmatically in flutter - android
I have 2 scripts where i try to enable GPS but none of them seem to work , so how i can enable GPS for a foreground - background task for some minutes and then close it again ? (not manually but ...
- 91.7k
Answer
You can't, for security reasons. Only the user can enable or disable GPS, so the user can protect his privacy from apps. All you can do is check if it's enabled, and ask the user to turn it on ...
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- 91.7k
1
vote
2
answers
34
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How to Automatically Generate IDs in Kotlin with Firebase?
How can I add automatically generated IDs to guests? For example, as shown in the picture below, I have two guests, the first one with ID=0 and the second one with ID=1. I want to remove the numbered ...
- 35
Answer
When you're using FieldValue.arrayUnion(guest) it means that you try to add a new element inside an array. Those numbers 0 and 1 are actually indexes, more precisely, the first and the second index of ...
View answer
- 135k
See what's trending
View all trending questionsThese are the most active questions in Mobile Development Collective
4346
votes
130
answers
1.8m
views
How can I close/hide the Android soft keyboard programmatically?
I have an EditText and a Button in my layout.
After writing in the edit field and clicking on the Button, I want to hide the virtual keyboard when touching outside the keyboard. I assume that this is ...
- 348
3547
votes
77
answers
1.1m
views
Why is the Android emulator so slow? How can we speed up the Android emulator?
I have got a 2.67 GHz Celeron processor, and 1.21 GB of RAM on a x86 Windows XP Professional machine.
My understanding is that the Android Emulator should start fairly quickly on such a machine, but ...
- 4,104
6377
votes
34
answers
1.5m
views
What is the difference between px, dip, dp, and sp?
What is the difference between the units of measure
px, dip, dp, and sp?
- 137
3168
votes
54
answers
828k
views
How to stop EditText from gaining focus when an activity starts in Android?
I have an Activity in Android, with two elements:
EditText
ListView
When my Activity starts, the EditText immediately has the input focus (flashing cursor). I don't want any control to have input ...
- 12.5k
2729
votes
64
answers
1.5m
views
How can I fix 'android.os.NetworkOnMainThreadException'?
I got an error while running my Android project for RssReader.
Code:
URL url = new URL(urlToRssFeed);
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser parser = factory....
- 2,260
Learn something new
These are the most recent articles in Mobile Development Collective
6
votes
235
views
1 minute read
Using SwiftData with SwiftUI
One thing we iOS developers should rejoice about is the development of SwiftData, at least if you are coding for a very new project and can forget about iOS versions below 17.
We finally have an ...
- 314
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