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feat: hide OS system bars during full-screen media

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Install a DisposableEffect in ZoomableImageDialog that hides both status
and navigation bars via WindowInsetsControllerCompat when the full-screen
media dialog opens, and restores them on dispose.
This commit is contained in:
davotoula
2026-06-17 11:24:50 +02:00
parent 04d7316e34
commit 67764300a8
1 changed files with 17 additions and 0 deletions
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amethyst/src/main/java/com/vitorpamplona/amethyst/ui/components/ZoomableContentDialog.kt
+17
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@@ -53,6 +53,7 @@ import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.OutlinedButton
import androidx.compose.material3.Surface
import androidx.compose.runtime.Composable
import androidx.compose.runtime.DisposableEffect
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.MutableState
import androidx.compose.runtime.getValue
@@ -71,10 +72,13 @@ import androidx.compose.ui.layout.boundsInWindow
import androidx.compose.ui.layout.onGloballyPositioned
import androidx.compose.ui.platform.LocalConfiguration
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.platform.LocalView
import androidx.compose.ui.util.lerp
import androidx.compose.ui.window.Dialog
import androidx.compose.ui.window.DialogProperties
import androidx.core.net.toUri
import androidx.core.view.WindowInsetsCompat
import androidx.core.view.WindowInsetsControllerCompat
import androidx.lifecycle.compose.collectAsStateWithLifecycle
import com.google.accompanist.permissions.ExperimentalPermissionsApi
import com.google.accompanist.permissions.isGranted
@@ -206,6 +210,19 @@ fun ZoomableImageDialog(
dialogWindow.attributes = attributes
}
// Go fully immersive while the full-screen media viewer is open: hide both OS bars and
// restore them when the dialog closes. BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE lets the user
// swipe to peek the bars. Applies to full-screen images and video alike (shared dialog).
val dialogView = LocalView.current
DisposableEffect(dialogWindow, dialogView) {
val controller = dialogWindow?.let { WindowInsetsControllerCompat(it, dialogView) }
controller?.apply {
systemBarsBehavior = WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
hide(WindowInsetsCompat.Type.systemBars())
}
onDispose { controller?.show(WindowInsetsCompat.Type.systemBars()) }
}
Box(modifier = Modifier.fillMaxSize()) {
// Background surface that fades in as the content grows to fullscreen.
Surface(