Motion Layout Example

MotionLayout is a layout type that helps you manage motion and widget animation in your app. MotionLayout is a subclass of ConstraintLayout and builds upon its rich layout capabilities. As part of the ConstraintLayout library, MotionLayout is available as a support library and is backwards-compatible to API level 14.

Lets get into simple motion layout example code:

Follow these simple steps to start using MotionLayout in your project.

1: First you need to add the ConstraintLayout dependency:

Add the ConstraintLayout 2.0 dependency to your app’s build.gradle file. If you’re using AndroidX, add the following dependency:

dependencies {

implementation 'androidx.constraintlayout:constraintlayout:2.0.0-beta1'

If you not using the AndroidX, add the following support library dependency:

dependencies {

implementation 'com.android.support.constraint:constraint-layout:2.0.0-beta1'

}

2: activity_main.xml:

<?xml version="1.0" encoding="utf-8"?>

<androidx.constraintlayout.motion.widget.MotionLayout 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"

app:layoutDescription="@xml/activity_main_motion"

tools:context=".MainActivity">

<androidx.appcompat.widget.AppCompatImageView

android:id="@+id/header_image"

android:layout_width="0dp"

android:layout_height="0dp"

android:scaleType="centerCrop"

app:layout_constraintBottom_toTopOf="@+id/desc_tv"

app:layout_constraintEnd_toEndOf="parent"

app:layout_constraintStart_toStartOf="parent"

app:layout_constraintTop_toTopOf="parent"

app:srcCompat="@drawable/background_logo" />

<TextView

android:id="@+id/desc_tv"

android:layout_width="0dp"

android:layout_height="wrap_content"

android:paddingStart="24dp"

android:paddingEnd="24dp"

android:paddingBottom="32dp"

android:text="@string/random_string"

app:layout_constraintBottom_toBottomOf="parent"

app:layout_constraintEnd_toEndOf="parent"

app:layout_constraintStart_toStartOf="parent"

app:lineHeight="26dp" />

<TextView

android:id="@+id/title_tv"

android:layout_width="0dp"

android:layout_height="wrap_content"

android:gravity="center"

android:padding="24dp"

android:text="@string/test_title"

android:textColor="@android:color/white"

android:textSize="22sp"

app:layout_constraintBottom_toBottomOf="@+id/header_image"

app:layout_constraintEnd_toEndOf="parent"

app:layout_constraintStart_toStartOf="parent" />

</androidx.constraintlayout.motion.widget.MotionLayout>

3: activity_main_start.xml:

<?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"

tools:context=".MainActivity">

<androidx.appcompat.widget.AppCompatImageView

android:id="@+id/header_image"

android:layout_width="0dp"

android:layout_height="0dp"

android:scaleType="centerCrop"

app:layout_constraintBottom_toTopOf="@+id/desc_tv"

app:layout_constraintEnd_toEndOf="parent"

app:layout_constraintStart_toStartOf="parent"

app:layout_constraintTop_toTopOf="parent"

app:srcCompat="@drawable/background_logo" />

<TextView

android:id="@+id/desc_tv"

android:layout_width="0dp"

android:layout_height="wrap_content"

android:paddingStart="24dp"

android:paddingEnd="24dp"

android:paddingBottom="32dp"

android:text="@string/random_string"

app:layout_constraintEnd_toEndOf="parent"

app:layout_constraintStart_toStartOf="parent"

app:layout_constraintTop_toBottomOf="parent"

app:lineHeight="26dp" />

<TextView

android:id="@+id/title_tv"

android:layout_width="0dp"

android:layout_height="wrap_content"

android:gravity="center"

android:padding="24dp"

android:text="@string/test_title"

android:textColor="@android:color/white"

android:textSize="22sp"

app:layout_constraintBottom_toBottomOf="@+id/header_image"

app:layout_constraintEnd_toEndOf="parent"

app:layout_constraintStart_toStartOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

4: activity_main_end.xml:

<?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"

tools:context=".MainActivity">

<androidx.appcompat.widget.AppCompatImageView

android:id="@+id/header_image"

android:layout_width="0dp"

android:layout_height="0dp"

android:scaleType="centerCrop"

app:layout_constraintBottom_toTopOf="@+id/desc_tv"

app:layout_constraintEnd_toEndOf="parent"

app:layout_constraintStart_toStartOf="parent"

app:layout_constraintTop_toTopOf="parent"

app:srcCompat="@drawable/background_logo" />

<TextView

android:id="@+id/desc_tv"

android:layout_width="0dp"

android:layout_height="wrap_content"

android:paddingStart="24dp"

android:paddingEnd="24dp"

android:paddingBottom="32dp"

android:text="@string/random_string"

app:layout_constraintBottom_toBottomOf="parent"

app:layout_constraintEnd_toEndOf="parent"

app:layout_constraintStart_toStartOf="parent"

app:lineHeight="26dp" />

<TextView

android:id="@+id/title_tv"

android:layout_width="0dp"

android:layout_height="wrap_content"

android:gravity="center"

android:padding="24dp"

android:text="@string/test_title"

android:textColor="@android:color/white"

android:textSize="22sp"

app:layout_constraintBottom_toBottomOf="@+id/header_image"

app:layout_constraintEnd_toEndOf="parent"

app:layout_constraintStart_toStartOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

5: activity_main_motion.xml:

<?xml version="1.0" encoding="utf-8"?>

<MotionScene xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto">

<Transition

app:constraintSetEnd="@layout/activity_main_end"

app:constraintSetStart="@layout/activity_main_start">

<OnSwipe app:touchAnchorSide="top"

app:dragDirection="dragUp" />

</Transition>

</MotionScene>

The activity_main_motion file will be in res->xml directory, either you can create the file or it can be auto generated by the android studio. In the activity_main_motion.xml file we can provide various type of animations.

We can also use the constraint set to animate the layout for animation from start to end.

Final Result:

. . . . . . . . . .

That’s it from my side for today, thanks for reading it until now.

android Android Animation

Deepak Rawat 30 November 2020

. . .

Motion Layout Example

Lets get into simple motion layout example code:

1: First you need to add the ConstraintLayout dependency:

2: activity_main.xml:

3: activity_main_start.xml:

4: activity_main_end.xml:

5: activity_main_motion.xml:

Final Result:

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