Using MotionLayout to Create a Complex Animation Results in Overlapping Views
I'm working on a personal project and I'm trying to implement a complex animation using MotionLayout in my Android app, targeting SDK version 30... I have two overlapping views, a `TextView` and an `ImageView`, which I want to animate independently. However, during the transition, the views overlap unexpectedly, causing visual glitches. Here's a simplified version of my `MotionScene` XML: ```xml <MotionScene xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto"> <Transition android:id="@+id/transition" app:constraintSetStart="@+id/start" app:constraintSetEnd="@+id/end" app:duration="1000"> <KeyFrame app:targetId="@+id/textView" app:framePosition="100" app:translationY="-150" /> <KeyFrame app:targetId="@+id/imageView" app:framePosition="100" app:translationY="150" /> </Transition> <ConstraintSet android:id="@+id/start"> <Constraint android:id="@+id/textView" android:layout_width="wrap_content" android:layout_height="wrap_content" app:layout_constraintTop_toTopOf="parent" app:layout_constraintStart_toStartOf="parent" /> <Constraint android:id="@+id/imageView" android:layout_width="wrap_content" android:layout_height="wrap_content" app:layout_constraintTop_toBottomOf="@+id/textView" app:layout_constraintStart_toStartOf="parent" /> </ConstraintSet> <ConstraintSet android:id="@+id/end"> <Constraint android:id="@+id/textView" android:layout_width="wrap_content" android:layout_height="wrap_content" app:layout_constraintTop_toTopOf="parent" app:layout_constraintStart_toStartOf="parent" /> <Constraint android:id="@+id/imageView" android:layout_width="wrap_content" android:layout_height="wrap_content" app:layout_constraintTop_toBottomOf="@+id/textView" app:layout_constraintStart_toStartOf="parent" /> </ConstraintSet> </MotionScene> ``` The issue arises when I run it. The `TextView` animates upward, while the `ImageView` moves downward. However, they overlap at the center of the screen during the transition, creating an undesired visual effect. I've tried adjusting the `layout_constraintTop_toBottomOf` attribute for the `ImageView`, but it doesn’t seem to resolve the problem. I also experimented with changing the `KeyFrame` timing to stagger the animations, but that led to other synchronization issues. Additionally, I verified that there are no conflicting constraints set in the layout. I would appreciate any insight on how to properly coordinate these animations to avoid overlaps and achieve a smooth transition without glitches. Is there a best practice for handling independent animations in `MotionLayout` without them interfering with each other? Thank you! I'm working on a CLI tool that needs to handle this. What am I doing wrong? Any examples would be super helpful.