add in predictive back snippets for NavHost and predictive back handler #394
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@googlebot hello |
| // [START android_compose_predictiveback_navhost] | ||
| NavHost( | ||
| navController = navController, | ||
| startDestination = "home", |
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This should use type safe routes. To do this declare:
@Serializable data object Home
@Serializable data object Settings
before the function.
Then to use it do startDestination = Home
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Ahhh, thanks for the tip of changing them to safe routes, Don!
| ) | ||
| // [END android_compose_predictiveback_navhost] | ||
| { | ||
| composable("home") { |
| navController = navController, | ||
| ) | ||
| } | ||
| composable("settings") { |
| // code for progress | ||
| boxScale = 1F - (1F * backEvent.progress) | ||
| } | ||
| // code for completion |
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Shouldn't this have a completion state? From the looks of it, it should be boxScale = 0F
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Yep, it should have a completion state. Added it into the #399 PR.
| val navController = rememberNavController() | ||
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| // [START android_compose_predictiveback_navhost] | ||
| NavHost( |
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Not sure of the context in which this is being used but I think it's important to mention that NavHost supports predictive back out of the box. There's nothing extra required, aside from defining the animations you want to use between destinations.
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Yes, we do mention NavHost supports PB out of the box. This snippets shows a custom in-app animations example for PB
Add in the predictive back snippets for NavHost implementation and the Predictive Back Handler for a navigation drawer