Questions tagged [android-jetpack]
Android Jetpack is a Google's set of libraries, tools and architectural guidance to build Android apps and provides common infrastructure code.
android-jetpack
422
questions
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What is AndroidX?
I am reading about a room library of Android. I see they changed package android to androidx. I did not understand that. Can someone explain, please?
implementation "androidx.room:room-runtime:$...
- 58.6k
35
votes
2
answers
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Android Jetpack Compose width / height / size modifier vs requiredWidth / requiredHeight / requiredSize
Android Jetpack Compose contains width(), height() and size() layout modifiers as well as requiredWidth(), requiredHeight() and requiredSize(). What is the difference between these two sets of ...
- 39k
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votes
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answers
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Jetpack Compose - Order of Modifiers
Documentation says that Modifiers are applied from the left.
But from this example it looks like they are applied from the right:
First border and then padding because there is no space between text ...
- 1,019
118
votes
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answers
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Can I use library that used android support with Androidx projects.
I know, androidx and support dependency causing multidex error
We can not use androidx and android support at a same time. So I totally migrate to androidx. but one of my dependency lib used android ...
- 2,154
88
votes
3
answers
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Android. Is WorkManager running when app is closed?
I want to schedule nightly database updates. So I use new Android WorkManager. My understanding is that once scheduled it will always run in the background independently from the app's lifecycle.
Is ...
- 1,266
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votes
12
answers
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Jetpack Compose collapsing toolbar
I can't find any documents on the matter, is there something similar to a CollapsingToolbar in Compose?
All I found was a mention of it here, but nothing on how to set it up
- 1,971
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votes
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answers
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Android Navigation Architecture Component - Get current visible fragment
Before trying the Navigation component I used to manually do fragment transactions and used the fragment tag in order to fetch the current fragment.
val fragment:MyFragment = supportFragmentManager....
- 14.5k
155
votes
32
answers
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Handling back button in Android Navigation Component
I'd like to know how properly handle system back button action using Navigation Controller. In my app I have two fragments (for ex. fragment1 and fragment2) and I have an action in fragment1 with ...
- 3,455
125
votes
9
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Fragments destroyed / recreated with Jetpack's Android Navigation components
I'm trying to implement Navigation with Jetpack's architecture components in my existing app.
I have a single activity app where the main fragment (ListFragment) is a list of items. Currently, when ...
- 3,596
8
votes
3
answers
14k
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Different types of width in jetpack compose
I am working in textfield in jetpack compose. I want to build something like this
TextField(
value = value,
onValueChange = {
value = it
},
...
- 6,129
101
votes
3
answers
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When should I use Android Jetpack Compose's Surface composable?
There's a Surface composable in Jetpack Compose which represents a material surface. A surface allows you to set up things like background color or border but it seems that the same might be done ...
- 39k
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Error: "@Composable invocations can only happen from the context of a @Composable function"
I'm trying to show a toast message when clicking on a toolbar action, but I got this error
@composable invocations can only happen from the context of a
@composable function
Code:
@Composable
fun ...
- 6,355
33
votes
5
answers
41k
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Android Jetpack Compose mutableStateListOf not doing Recomposition
So, I have a mutableStateListOf in viewModel:
var childTravellersList = mutableStateListOf<TravellersDetails>()
TravellersDetails is a data class having a field called error.
this ...
- 840
21
votes
5
answers
20k
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How to schedule notifications using WorkManager?
I want to schedule a notification everytime the user add a note in the database for a specific time. While there are multiple ways to do it using AlarmManager, BroadcastReceiver etc. How can it be ...
- 410
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votes
1
answer
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Android Work Manager vs Services?
In my Android app i have multiple intent services which run one after another and the very first intent service is trigerred by a broadcast. I came across Work Manager a few days ago and really liked ...
- 8,749