Fix race condition between PromptIconViewBinder and BiometricSizeBinder
Sets BiometricPrompt view invisible until all resizing is complete. Adds
new MutableStateFlow updated on iconView onCompositionLoadedListener,
and combines this new flow with the BiometricSizeBinder viewModel.size
collect call, to force the resizing logic to wait for the iconAsset to
update first to account for it in the prompt size.
Flag: NONE
Fixes: 313605043
Test: (manual) manually verified prompt appears only once and in the correct size, no resizing visible to the user
Change-Id: I6b25acbf779c7f2b80b4f2fe8693c6021dbf2903
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/AuthContainerView.java b/packages/SystemUI/src/com/android/systemui/biometrics/AuthContainerView.java
index ab23564..83d415f 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/AuthContainerView.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/AuthContainerView.java
@@ -403,6 +403,13 @@
final BiometricPromptLayout view = (BiometricPromptLayout) layoutInflater.inflate(
R.layout.biometric_prompt_layout, null, false);
+ /**
+ * View is only set visible in BiometricViewSizeBinder once PromptSize is determined
+ * that accounts for iconView size, to prevent prompt resizing being visible to the
+ * user.
+ * TODO(b/288175072): May be able to remove this once constraint layout is implemented
+ */
+ view.setVisibility(View.INVISIBLE);
mBiometricView = BiometricViewBinder.bind(view, viewModel, mPanelController,
// TODO(b/201510778): This uses the wrong timeout in some cases
getJankListener(view, TRANSIT,
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/ui/binder/BiometricViewBinder.kt b/packages/SystemUI/src/com/android/systemui/biometrics/ui/binder/BiometricViewBinder.kt
index 90e4a38..a7fb6f7 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/ui/binder/BiometricViewBinder.kt
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/ui/binder/BiometricViewBinder.kt
@@ -97,7 +97,13 @@
val iconOverlayView = view.requireViewById<LottieAnimationView>(R.id.biometric_icon_overlay)
val iconView = view.requireViewById<LottieAnimationView>(R.id.biometric_icon)
-
+ /**
+ * View is only set visible in BiometricViewSizeBinder once PromptSize is determined that
+ * accounts for iconView size, to prevent prompt resizing being visible to the user.
+ *
+ * TODO(b/288175072): May be able to remove this once constraint layout is implemented
+ */
+ iconView.addLottieOnCompositionLoadedListener { viewModel.setIsIconViewLoaded(true) }
PromptIconViewBinder.bind(
iconView,
iconOverlayView,
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/ui/binder/BiometricViewSizeBinder.kt b/packages/SystemUI/src/com/android/systemui/biometrics/ui/binder/BiometricViewSizeBinder.kt
index 7e16d1e..f340bd8 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/ui/binder/BiometricViewSizeBinder.kt
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/ui/binder/BiometricViewSizeBinder.kt
@@ -30,7 +30,6 @@
import androidx.core.view.doOnLayout
import androidx.core.view.isGone
import androidx.lifecycle.lifecycleScope
-import com.android.systemui.res.R
import com.android.systemui.biometrics.AuthPanelController
import com.android.systemui.biometrics.Utils
import com.android.systemui.biometrics.ui.BiometricPromptLayout
@@ -41,6 +40,8 @@
import com.android.systemui.biometrics.ui.viewmodel.isNullOrNotSmall
import com.android.systemui.biometrics.ui.viewmodel.isSmall
import com.android.systemui.lifecycle.repeatWhenAttached
+import com.android.systemui.res.R
+import kotlinx.coroutines.flow.combine
import kotlinx.coroutines.launch
/** Helper for [BiometricViewBinder] to handle resize transitions. */
@@ -92,8 +93,22 @@
// TODO(b/251476085): migrate the legacy panel controller and simplify this
view.repeatWhenAttached {
var currentSize: PromptSize? = null
+
lifecycleScope.launch {
- viewModel.size.collect { size ->
+ /**
+ * View is only set visible in BiometricViewSizeBinder once PromptSize is
+ * determined that accounts for iconView size, to prevent prompt resizing being
+ * visible to the user.
+ *
+ * TODO(b/288175072): May be able to remove isIconViewLoaded once constraint
+ * layout is implemented
+ */
+ combine(viewModel.isIconViewLoaded, viewModel.size, ::Pair).collect {
+ (isIconViewLoaded, size) ->
+ if (!isIconViewLoaded) {
+ return@collect
+ }
+
// prepare for animated size transitions
for (v in viewsToHideWhenSmall) {
v.showTextOrHide(forceHide = size.isSmall)
@@ -196,8 +211,9 @@
}
}
}
-
currentSize = size
+ view.visibility = View.VISIBLE
+ viewModel.setIsIconViewLoaded(false)
notifyAccessibilityChanged()
}
}
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/ui/viewmodel/PromptViewModel.kt b/packages/SystemUI/src/com/android/systemui/biometrics/ui/viewmodel/PromptViewModel.kt
index 6d0a58e..d899827e 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/ui/viewmodel/PromptViewModel.kt
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/ui/viewmodel/PromptViewModel.kt
@@ -192,6 +192,28 @@
val iconViewModel: PromptIconViewModel =
PromptIconViewModel(this, displayStateInteractor, promptSelectorInteractor)
+ private val _isIconViewLoaded = MutableStateFlow(false)
+
+ /**
+ * For prompts with an iconView, false until the prompt's iconView animation has been loaded in
+ * the view, otherwise true by default. Used for BiometricViewSizeBinder to wait for the icon
+ * asset to be loaded before determining the prompt size.
+ */
+ val isIconViewLoaded: Flow<Boolean> =
+ combine(credentialKind, _isIconViewLoaded.asStateFlow()) { credentialKind, isIconViewLoaded
+ ->
+ if (credentialKind is PromptKind.Biometric) {
+ isIconViewLoaded
+ } else {
+ true
+ }
+ }
+
+ // Sets whether the prompt's iconView animation has been loaded in the view yet.
+ fun setIsIconViewLoaded(iconViewLoaded: Boolean) {
+ _isIconViewLoaded.value = iconViewLoaded
+ }
+
/** Padding for prompt UI elements */
val promptPadding: Flow<Rect> =
combine(size, displayStateInteractor.currentRotation) { size, rotation ->