I've been pulling my hair out with this specific issue. Whenever I load the current activity (on top) of the previous activity, it causes the background of the loading activity (with transparent background) to turn black.
I can see the transparent setting when the transition is loading, but when its fully loaded it turns black.
Here is the code I use to make the background transparent:
window.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
The above code works elsewhere on another view just like this one. All settings are the same on both views, but this one doesn't want to work correctly.
This is the code for the activity:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/transparent"
android:fitsSystemWindows="true"
android:orientation="vertical"
android:scaleType="fitCenter"
tools:context=".ui.activities.TourConnectActivity">
<ImageView
android:id="@+id/backgroundImage"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginStart="24dp"
android:layout_marginTop="64dp"
android:layout_marginEnd="24dp"
android:background="@drawable/rounded_top"
android:contentDescription="background"
android:scaleType="centerCrop"
android:src="@drawable/launch_bg"
app:layout_constraintBottom_toTopOf="@+id/view7"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="HardcodedText" />
<View
android:id="@+id/view7"
android:layout_width="0dp"
android:layout_height="40dp"
android:layout_marginStart="24dp"
android:layout_marginEnd="24dp"
android:background="@drawable/preview_green_border_top"
app:layout_constraintBottom_toTopOf="@+id/linearLayout2"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/backgroundImage" />
<ImageView
android:id="@+id/logo"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_marginStart="128dp"
android:layout_marginEnd="128dp"
android:background="@drawable/org_logo_border"
android:contentDescription="background"
android:cropToPadding="true"
android:scaleType="fitCenter"
app:layout_constraintBottom_toBottomOf="@+id/view7"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:srcCompat="@drawable/dot"
tools:ignore="HardcodedText" />
<LinearLayout
android:id="@+id/linearLayout2"
android:layout_width="match_parent"
android:layout_height="315dp"
android:layout_marginStart="24dp"
android:layout_marginEnd="24dp"
android:layout_marginBottom="64dp"
android:background="@drawable/rounded_bottom"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/view7">
<TextView
android:id="@+id/connectTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="This tour is presented by"
android:textColor="#333"
android:textSize="12sp"
tools:ignore="HardcodedText" />
<TextView
android:id="@+id/connectSubtitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:fontFamily="@font/roboto"
android:text="Jackson Hole Land Trust"
android:textAlignment="center"
android:textColor="@color/colorTSGGreen"
android:textSize="20sp"
android:textStyle="bold"
tools:ignore="HardcodedText" />
<ScrollView
android:id="@+id/scrollView"
android:layout_width="match_parent"
android:layout_height="175dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="16dp"
android:background="@color/transparent">
<TextView
android:id="@+id/connectMessage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fontFamily="@font/roboto"
android:text="@string/lorem_ipsum_3"
android:textColor="#333"
android:textSize="16sp" />
</LinearLayout>
</ScrollView>
<Button
android:id="@+id/learnMore"
style="@style/Widget.MaterialComponents.Button.Icon"
android:layout_width="280dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:drawableStart="@drawable/ic_none"
android:drawableEnd="@drawable/ic_exit_to_app"
android:onClick="buttonClick"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:text="@string/learn_more"
android:textColor="@color/loginTextColor"
android:textSize="18sp"
app:backgroundTint="@color/colorTSGGreen" />
</LinearLayout>
<ImageView
android:id="@+id/buttonBack"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="32dp"
android:contentDescription="close button"
android:onClick="iconClick"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/ic_close" />
</androidx.constraintlayout.widget.ConstraintLayout>
I'm inclined to think that it has something to do with the map view on the previous activity, but I'm not sure that could be it.
Any input would be appreciated. Thanks.