Improve visual transition when going from postview to final capture

- show the postview - show the final capture on top
karonque · May 23, 2024 · e37680f · e37680f
1 parent e97a8dd
commit e37680f
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Showing 2 changed files with 12 additions and 3 deletions.
diff --git a/CameraXExtensions/app/src/main/java/com/example/android/cameraxextensions/MainActivity.kt b/CameraXExtensions/app/src/main/java/com/example/android/cameraxextensions/MainActivity.kt
@@ -20,6 +20,7 @@ import android.Manifest
 import android.content.pm.PackageManager
 import android.net.Uri
 import android.os.Bundle
+import android.util.Log
 import androidx.activity.OnBackPressedCallback
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AppCompatActivity
@@ -97,7 +98,6 @@ class MainActivity : AppCompatActivity() {
                 }.updateCameraScreen {
                     it.hideCameraControls()
                         .hideProcessProgressViewState()
-                        .hidePostview()
                 }
         )
         captureUri = null
@@ -201,6 +201,7 @@ class MainActivity : AppCompatActivity() {
                                 .updateCameraScreen {
                                     it.enableCameraShutter(true)
                                         .enableSwitchLens(true)
+                                        .hidePostview()
                                 }
                         )
                     }
@@ -302,6 +303,7 @@ class MainActivity : AppCompatActivity() {
                                     }
                                     .updateCameraScreen {
                                         it.showCameraControls()
+                                            .hidePostview()
                                             .enableCameraShutter(false)
                                             .enableSwitchLens(false)
                                     }
@@ -342,6 +344,7 @@ class MainActivity : AppCompatActivity() {
             captureScreenViewState.value
                 .updateCameraScreen { state ->
                     state.showCameraControls()
+                    state.hidePostview()
                 }
                 .updatePostCaptureScreen {
                     PostCaptureScreenViewState.PostCaptureScreenHiddenViewState

diff --git a/...ions/app/src/main/java/com/example/android/cameraxextensions/ui/CameraExtensionsScreen.kt b/...ions/app/src/main/java/com/example/android/cameraxextensions/ui/CameraExtensionsScreen.kt
@@ -230,7 +230,10 @@ class CameraExtensionsScreen(private val root: View) {
     private fun showPostview(bitmap: Bitmap) {
         if (photoPostview.isVisible) return
         photoPostview.isVisible = true
-        photoPostview.load(bitmap)
+        photoPostview.load(bitmap) {
+            crossfade(true)
+            crossfade(200)
+        }
     }
 
     private fun hidePostview() {
@@ -261,7 +264,10 @@ class CameraExtensionsScreen(private val root: View) {
     private fun showPhoto(uri: Uri?) {
         if (uri == null) return
         photoPreview.isVisible = true
-        photoPreview.load(uri)
+        photoPreview.load(uri) {
+            crossfade(true)
+            crossfade(200)
+        }
         closePhotoPreview.isVisible = true
     }