I have a very noob question. What is the easiest way to definitely recompose a View? In other words, completely remove from the tree and reinsert like it's brand new.

I feel like I'm missing something, is there no way to align a child of a Column to the end of the column? The

gravity

modifier only allows aligning horizontally, but not vertically (and also can only be called when a Column is in scope which is very odd, I mean what do you do when the column is way up the tree?)

July 4th holiday meant a skipped cycle

I have a weird one. I have a google map view inflated from an xml which is working perfectly when I first load this "screen". I am using zsoltk/compose-router to push the view onto the router stack and remove it. When the view loads everything is perfect. When I hit back and then load it again, the map is white. The same log message "Setup map" gets outputted so its running the inflate setup function.

Someone to share a ConstraintLayout demo using

dev14

?

This message was deleted.

Hello everyone, I work on Compose Animation. I would love to collect feature requests from you guys on layout animation in compose. 😀 The more specific the better! If you have run into the cases where layout changes happen so fast and instantaneously that you wish it would slow down and get smoothed over, this would be a perfect opportunity to bring it up! 😉

Got a possible issue which I can replicate in my app causing a crash, where i filter the items for LazyColumnItems from a search box and then bind them to the items with a state {}. Sometimes if you try to scroll when its empty it crashes the app:

JNI DETECTED ERROR IN APPLICATION: JNI CallVoidMethodV called with pending exception java.lang.IndexOutOfBoundsException: Index: 0, Size: 0 
at java.lang.Object java.util.ArrayList.get(int) (ArrayList.java:437)

held mutexes= "mutator lock"(shared held)

I can share more detailed error logs if anyone wants.

Anyone know how can I access compose samples?

How can I place a component under a

LazyColumnItems

? I have no problem placing one above it, e.g.

Column {
            Text("top")
            LazyColumnItems(items = listOf("1","2","3")) {
                Text(it)
            }
        }

But if I try to place it below the

bottom

text doesn't appear.

Column {
            LazyColumnItems(items = listOf("1","2","3")) {
                Text(it)
            }
            Text("bottom")
        }

(In my case I also want to attach

bottom

to the bottom of the column so I would add

fillMaxHeight().wrapContentHeight(Alignment.Bottom)

as well)

Is there some way to make a

TextField

unfocus? I can't draw focus away not by tapping outside, or by tapping the IME action on the keyboard, and I can't find a way to do it in code (something like a FocusNode I get from the

TextField

that I can call

unfocus()

on) I've found some outdated discussion about it: https://kotlinlang.slack.com/archives/CJLTWPH7S/p1584069025456900?thread_ts=1584053267.453300&cid=CJLTWPH7S

Why my drawShadow‘s rendering is so poor?

How do you know where to draw the line when building components? How was it decided to build a

Box

but to not create a

Circle

composable? I find myself wanting to break everything out into reusable components and rather than just creating the page I need, I end up building a whole infrastructure of components behind it.

Hey, I am trying to have a popup similar to AlertDialog but bigger and with different content,

Dialog

seems good for this but it appears to have a rather small fixed size? Any pointers?

Is there a reason the bug tracker issue buttons are greyed out? I am logged in with my Google account in Chrome.

]

Hi! How can I translate xml constraint into compose?

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="<http://schemas.android.com/apk/res/android>"
    xmlns:app="<http://schemas.android.com/apk/res-auto>"
    xmlns:tools="<http://schemas.android.com/tools>"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Text goes here and it is reeeeeeeeeeeeeeeally long "
        android:singleLine="true"
        android:ellipsize="end"
        app:layout_constrainedWidth="true"
        app:layout_constraintEnd_toStartOf="@id/image"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <ImageView
        android:id="@+id/image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constrainedWidth="true"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toEndOf="@id/textView"
        app:layout_constraintTop_toTopOf="parent"
        tools:src="@tools:sample/avatars" />

</androidx.constraintlayout.widget.ConstraintLayout>

The idea is simple - don't let TextView to push ImageView out of screen. I've set a ConstraintSet but cannot found an equivalent of constrainedWidth. Any ideas?

Is there a reason why Test tagging is not implemented with Modifier?

How do you handle lifecycle inside Compose?

What about startActivityForResult / Permission Requests and all those stuff that was usually needed in an activity/fragment?

Hello, where can I find the list of already developed material components for Compose?

Hi guys. I'm trying to integrate Compose into a production project to test it's integration with our current pattern and can't seem to get it compiling correctly. I've updated the Gradle plugin to 6.5 and the AGP to 4.2.0-alpha3 and it seems all the plugins I have defined now don't work and I keep getting errors along the lines of

Plugin with id 'findbugs' not found

. I've tried removing them one by one but it eventually gets to Android plugins to which it claims to not be able to find. Just wondering if anyone ese has experienced this or if I might be missing something?

I have a Row I and in it I would like a Text() at its Start and another Text at its aligned to the end, how do I achieve that? Is there some documentation on alignments of that sort?

Any idea how to deal with viewModel and Composable? Let's say I want to declare a state inside viewModel and changed it through InputText.

class MessageViewModel : ViewModel() {

    var state: MutableState<TextFieldValue> = state { TextFieldValue() }
}

Cause: Functions which invoke @Composable functions must be marked with the @Composable annotation

Saw the PR to add LazyItemsScope. It's a neat way to "magically" make those modifiers do what you'd intuitively expect them to do, but it seems like it would be really easy to accidentally factor out a composable and not realize that you're using the shadowed modifier and forget to add the scope to the factored composable.

I’ve created a simple app with Navigation Component and a few fragments. Should I replace only the fragment views with Compose (which I am not sure how to do) or should I go all the way and replace everything with Compose and do something like the JetNews sample does, or is there any better example?

In a Composable function, I could not just call

invoke()

on a reference of another Composable function, will that work someday?

Using

Canvas.scale()