how can I receive image uri into my app? Do I need...

# compose

[Peter Mandeljc]

how can I receive image uri into my app? Do I need to receive Intent in my activity, and somehow send it to NavHost?

[Ian Lake]

You'll want to use the Activity Result APIs: https://developer.android.com/reference/kotlin/androidx/activity/compose/package-summary#rememberlauncherforactivityresult

[Peter Mandeljc]

thanks for answer, but maybe wasn't clear enough, sorry

[Peter Mandeljc]

I'm confused how to receive intent to my app, when using intent filter. So I can share image into my app. Basically this for compose.

[Peter Mandeljc]

I know I have to make deeplink in NavHost, but not completely sure how Uri should be passed to there. I guess I need to receive it in Activity, and somehow send it to composable destination.

[Ian Lake]

You don't need to do anything, NavHost will take care of that part for you

[Ian Lake]

As long as you have the intent filter and deep link, that's all you need

[Ian Lake]

When you are deep linked to a destination, you'll get another argument: https://developer.android.com/reference/androidx/navigation/NavController.Companion#KEY_DEEP_LINK_INTENT()

[Ian Lake]

That argument has the full Intent

[Peter Mandeljc]

cool, thank you!

[Peter Mandeljc]

gonna try it out

[Peter Mandeljc]

do you mind helping me out a bit more? I'm confused how to create composable deeplink. How does this look to you:

composable(
    route = "myroute",
	deepLinks = listOf(
		navDeepLink {
		    uriPattern = "<app://com.app.myapp>" // ???
		    action = Intent.ACTION_OPEN_DOCUMENT
		    mimeType = "image/*"
		}
)

[Ian Lake]

The navDeepLink is a DSL builder because all of them are optional - if you aren't trying to handle a url, don't use uriPattern

[Ian Lake]

Your action and mime type should match the intent filter in your manifest - if you want to be in the share menu of other apps, that would be ACTION_SEND

[Peter Mandeljc]

hm, whenever I create a deeplink without uriPattern, navigation crashes for my "startDestination" composable

java.lang.NullPointerException
        at androidx.navigation.NavDeepLink.getMatchingArguments(NavDeepLink.kt:153)
        at androidx.navigation.NavDestination.matchDeepLink(NavDestination.kt:335)
        at androidx.navigation.NavGraph.matchDeepLink(NavGraph.kt:69)
        at androidx.navigation.NavController.navigate(NavController.kt:1381)
        at androidx.navigation.NavController.navigate(NavController.kt:1687)
        at androidx.navigation.NavController.navigate$default(NavController.kt:1682)
        at androidx.navigation.NavController.navigate(NavController.kt:1668)

[Ian Lake]

Mm, that looks like a problem on our side, not something that you're doing wrong. Do you mind filing a bug so we can take a look? https://issuetracker.google.com/issues/new?component=409828

[Peter Mandeljc]

https://issuetracker.google.com/issues/193805425