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View all 2 collectionsMobile Development admins have deemed these posts noteworthy.
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18
votes
5k
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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
Pinned
13
votes
3k
views
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
5
views
Flutter's Android Apps white out on the second run or later, if without the Emulator's 'Wipe Data'
The app ran well the first time with no problem. But then when I stopped the program and ran it again, the emulator failed to launch the app and whited out like the following picture, without throwing ...
- 11
0
votes
0
answers
7
views
using kotlin.reflect on the elements of a array not working
I am trying to use kotlin.reflect to get the names of variables in this array all. Then iterate over the array and get the name of each variable a, b, c. But well its not working and im not sure how ...
0
votes
0
answers
6
views
Android : sound recognition release version
I know that sound recognition feature was introduced on iOS 14.
But what about android ?
When was it released on Android ?
Thank you
- 493
0
votes
0
answers
8
views
Firebase returns no result in ios testflight using capacitor
Hi im using nextjs with capacitor and have firebase authentication. everything works fine on local configuration
import { CapacitorConfig } from '@capacitor/cli';
const config: CapacitorConfig = {
...
- 254
0
votes
0
answers
10
views
Android resource tools TargetApi Doesn't Work?
I am getting the following error when building my Android app while compiling by syles.xml file:
Error: android:windowSplashScreenBackground requires API level 31 (current min is 30) [NewApi]
The ...
- 11
Looking for an extra challenge?
View all bountied questionsThese questions have a bounty on them
0
votes
0
answers
26
views
+50
SSL Handshake Aborted Error with Coil in Kotlin
I'm currently working on a Kotlin project using coil3 for image loading. I'm encountering an SSL handshake aborted error with the following details:
javax.net.ssl.SSLHandshakeException: Handshake ...
- 75
0
votes
0
answers
57
views
+50
how to fix open failed: EACCES (Permission denied)
i am getting W/System.err: java.io.FileNotFoundException: /storage/emulated/0/Pictures/JayTN24/mens_shirt_0.jpg: open failed: EACCES (Permission denied) public void shareWallpaper i have send image ...
- 29
-1
votes
0
answers
29
views
+100
SecurityError: The operation is insecure on iOS in Next.js Project
I'm encountering a persistent SecurityError: The operation is insecure. issue in my Next.js project, but only on iOS devices. I've reviewed several related posts that suggest it could be a Firefox-...
- 9,957
-1
votes
0
answers
19
views
+50
Archive Fails only when invoking fastlane from Remote Jenkins Server works totally fine when done locally or done from Jenkins Localhost
I am trying to build pipeline for our iOS project using (fastlane + Jenkins). It works totally fine when I am running machine on local host but fails when I connect the same AWS EC2 instance to our ...
- 913
1
vote
1
answer
77
views
+500
Installing Device Admin & Device Owner App
I'm writing a device owner application, where I'm setting the app as device owner via ADB command:
adb shell dpm set-device-owner {package-name}/{admin-receiver}
The app is successfully set as a ...
- 139
Recommended answers
View all recommended answersThese answers have been recommended
1
vote
1
answer
41
views
How to prevent a selectable List from being updated when a confirmation dialog appears?
Let's us a selectable List as follows:
import SwiftUI
struct ContentView: View {
@State private var elements: Set<UUID> = [.init(), .init(), .init()]
@State private var selection: Set&...
- 250k
Answer
I found that this only happens in edit mode. If you select some list rows then press the delete button, without pressing "Edit", the selected rows are successfully deleted. I'm not sure if ...
View answer
- 250k
0
votes
1
answer
19
views
Permission Dialog for Kotlin App not showing up
I am making an Android App with Kotlin for a College Assignment. The assignment has a requirement to store an image into an SQLite database. I code in the code to request permissions to access the ...
- 73.1k
Answer
Accepted
When targeting android 13+ READ_EXTERNAL_STORAGE no longer works and you must use a different permission Please read the behavior changes If the image is already on the device I am not sure why you ...
View answer
- 73.1k
1
vote
1
answer
25
views
SwiftUI Xcode project - Can I change the struct name in the automatically generated file whose name is the app's name?
Suppose I create a new Xcode project of SwiftUI with app name "ExampleApp", then Xcode automatically generates a file ExampleAppApp.swift that contains the following code:
@main
struct ...
- 250k
Answer
Accepted
Yes, you can change the struct name and/or the file name, and you don't need to make any additional changes. All that is important is the @main attribute, and that it is attached to a struct that ...
View answer
- 250k
2
votes
1
answer
30
views
Kotlin sealed class inheritance not working without casting to sealed class
I am trying to use sealed class inheritance to organize data in a recyclerview which consumes data through PagingData, and I have been able to make it work but there is situation that I could not ...
- 91.6k
Answer
Accepted
The default variance of a PagingData's type is invariant. That means that a PagingData<SubClass> does not qualify as a subtype of PagingData<SealedClass>. You described this as working ...
View answer
- 91.6k
0
votes
1
answer
13
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Detecting field access in Android applications using Java and Xposed Framework
I'm trying to detect when a specific field in an Android application is accessed or modified. I'm using Java and the Xposed Framework.
Specifically, I want to log when this field is read or written
...
- 41.6k
Answer
Xposed bases on method hooks, but fields can be accessed by DEX code directly by iget* iput* sget* sput* DEX commands. But Xposed isn't able to hook DEX commands, only methods. Therefore the only way ...
View answer
- 41.6k
See what's trending
View all trending questionsThese are the most active questions in Mobile Development Collective
4354
votes
130
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 ...
- 17.8k
3554
votes
78
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 ...
6393
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?
CommunityBot
- 1
3172
votes
54
answers
831k
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
2735
votes
65
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....
- 230
Learn something new
These are the most recent articles in Mobile Development Collective
6
votes
203
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”. ...
- 4,462
9
votes
588
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 ...
- 344
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