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18
votes
10k
views
Android Frequently Asked Questions
The Android-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 ...
- 101
Can you answer these questions?
View all unanswered questionsThese questions still don't have an answer
0
votes
0
answers
6
views
RealityKit hitTest gives wrong result when changing field of view
I have a 3d model rendered on screen for hit test. This is my code:
let audio = try! await ModelEntity(named: "audio.usdz", in: nil)
audio.position = simd_float3(x: 0, y: 0, z: 0)...
- 189
-1
votes
0
answers
14
views
Android/iOS P2P HOW? LAN and/or data (complete newbie)
So I've been making a simple game in android studio. It's a social deduction game with 20ish players. The phone integration is only for ease of learning the game as it's really hard to introduce new ...
- 19
0
votes
0
answers
24
views
Android: Filter CardViews in RecyclerView with Room DAO
I have a RecylcerView List of CardViews. Each CardView holds user data that is saved in a Room database. Some of the CardViews have due dates that have been entered by the user with a TimePicker. I ...
- 1,685
0
votes
0
answers
15
views
package appears to be invalid: Attempt to read from field 'java.lang.String android.content.pm.PackageInfo.packageName' on a null object reference
I've got an Android Studio app that updates itself when new versions come out.
The update uses just fine on a few different older android versions except on Android Version 13.
I'm using a ...
- 483
0
votes
0
answers
12
views
Can't get permissions for COARSE and FINE Location on Android, target SDK 33
I am trying to make an app in Kotlin targeting Android SDK 33
I want the app to be very minimalist and simple, and as soon as the user opens it, it has a map and be centred on the user's location (I ...
Looking for an extra challenge?
View all bountied questionsThese questions have a bounty on them
1
vote
1
answer
48
views
+100
Layout issues opening keyboard
I'm developing a typical chat screen, with the text input at the bottom. The app has a bottom bar with tabs and a topbar.
I'm struggling at getting what I understand to be the expected behavior (...
- 33.6k
1
vote
0
answers
74
views
+50
Why does Firebase App Check think that my app is not registered?
I've been working on a Flutter project for iOS, and I'm confused on why Firebase App Check isn't working. Last release, it worked fine, but this release, it fails...so this leads me to believe that it'...
- 440
-1
votes
2
answers
121
views
+200
How to create more than 5 tabs in UITabBar on iOS 26
I’m trying to create more than 5 tabs in a UITabBarController on iOS 26. By default, the 6th tab and onwards get grouped into the “More” tab.
I’ve already tried using the regular trait collection ...
1
vote
0
answers
87
views
+50
Strange behaviour running iOS ReactNative app on Expo SDK 54
I recently updated my React-Native project (Android and iOS) to version 54 of Expo SDK and react-native 0.81.4. After fixing various issues related to the update, I was able to run the app without any ...
- 89
9
votes
3
answers
5k
views
+500
How to create AVD from command line using a hardware profile?
Currently I've been managing AVDs via the Android Studio UI at Tools > AVD Manager. This works for creating an AVD with a specific hardware profile (that I have in an XML file), but I find that ...
- 78.9k
Recommended answers
View all recommended answersThese answers have been recommended
0
votes
1
answer
26
views
How prevent show virtual keyboard in edittext while typing on physical keyboard?
When I use this:
etID.ShowSoftInputOnFocus = false;
the virtual keyboard does not show on focus. That's what I want.
But when I start typing on the physical keyboard, the virtual keyboard pops up. ...
- 42.9k
Answer
Try edittext.apply { showSoftInputOnFocus = false inputType = InputType.TYPE_NULL }
View answer
- 42.9k
1
vote
1
answer
34
views
How to setup different behaviour when dealing with ViewModifier and iOS availability?
Here is my DemoView:
struct ImageCropData: Identifiable {
var id = UUID()
var image: UIImage?
}
typealias CropImageHandler = (UIImage) async throws -> String
struct DemoView: View {
@...
Answer
The reason why the completion handler is not running, is because the task is only run once, at the beginning of that view's lifecycle (think onAppear). At that time, croppingData is still nil. You ...
1
vote
1
answer
82
views
SwiftUI Menu with glassEffect button shows rectangular artifact on dismiss
Menu {
Button("Duplicate", action: {})
Button("Rename", action: {})
Button("Delete…", action: {})
}
label: {
Button("Glass Button", action:{}...
Answer
Accepted
A Menu is already a Button that, when tapped, opens a menu. It does not need another Button as its label. That button's action would not be triggered in any case. You should just use a Text as the ...
1
vote
1
answer
197
views
iOS 26 - Liquid Glass with custom UITabBarController
I have a custom UITabBarController. In the init method, it sets its viewControllers. Each view controller is setting its own tabItem.
Now for liquid glass, how can I make the last tab separated like ...
- 124k
Answer
Accepted
For some reason, Apple only allows the search item to be separated. So you have to pass the .search case as the systemItem of the tabBarItem: tabBarItem = UITabBarItem(tabBarSystemItem: .search, tag: ...
0
votes
1
answer
58
views
How i navigate from email message to my Jetpack compose app?
i'm unable to navigate from my Gmail message to my jetpack compose app. But it not seem to be working. The message contain a magic link to login user without password but when i debug the logic from ...
- 95.8k
Answer
It is possible that the mail client on the Android device is simply blocking custom URL schemes, so that it doesn't recognize your myspotify scheme. In this case you can try using an "Intent URL&...
View answer
- 95.8k
See what's trending
View all trending questionsThese are the most active questions in Mobile Development Collective
4373
votes
132
answers
1.9m
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. Can someone provide a ...
- 1,787
3567
votes
78
answers
1.2m
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 ...
- 409
6428
votes
35
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?
3180
votes
54
answers
837k
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 ...
- 5,097
2749
votes
66
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....
- 11.8k
Learn something new
These are the most recent articles in Mobile Development Collective
11
votes
866
views
2 minute read
Basics of Kotlin coroutines
Basics of Kotlin coroutines
What is a coroutine?
A coroutine is a concurrency design pattern that you can use on Android to simplify code that executes asynchronously.
They are“lightweight threads”. ...
- 4,530
13
votes
1k
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 ...
- 392
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