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Added MotionLayout for transition animation #45

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Added MotionLayout for transition animation #45

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1 change: 0 additions & 1 deletion app/src/main/java/com/akshay/newsapp/news/ui/activity/NewsActivity.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -32,7 +32,6 @@ class NewsActivity : BaseActivity() {

val adapter = NewsArticlesAdapter { toast("Clicked on item") }
newsList.adapter = adapter
newsList.layoutManager = LinearLayoutManager(this)

// Update the UI on state change
newsArticleViewModel.getNewsArticles().observeNotNull(this) { state ->
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1 change: 1 addition & 0 deletions app/src/main/res/layout/activity_main.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@
android:id="@+id/newsList"
android:layout_width="0dp"
android:layout_height="0dp"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
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90 changes: 50 additions & 40 deletions app/src/main/res/layout/row_news_article.xml
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Original file line number Diff line number Diff line change
@@ -1,60 +1,70 @@
<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
<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"
style="@style/NewsArticle.View"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:cardElevation="@dimen/card_elevation">
app:layoutDescription="@xml/row_news_article_scene">

<RelativeLayout
<androidx.cardview.widget.CardView
android:id="@+id/cardView"
style="@style/NewsArticle.View"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/drawable_list_item">
app:cardElevation="@dimen/card_elevation"
app:layout_constraintTop_toTopOf="parent">

<!-- News block -->
<RelativeLayout
android:id="@+id/newsImageView"
android:id="@+id/rootLayout"
android:layout_width="match_parent"
android:layout_height="180sp">
android:layout_height="wrap_content"
android:background="@drawable/drawable_list_item">

<ImageView
android:id="@+id/newsImage"
style="@style/NewsArticle.Image"
<!-- News block -->
<RelativeLayout
android:id="@+id/newsImageView"
android:layout_width="match_parent"
android:layout_height="@dimen/image_size"
android:contentDescription="@string/news_image"
tools:src="@drawable/tools_placeholder" />
android:layout_height="180sp">

<ImageView
android:id="@+id/newsImage"
style="@style/NewsArticle.Image"
android:layout_width="match_parent"
android:layout_height="@dimen/image_size"
android:contentDescription="@string/news_image"
tools:src="@drawable/tools_placeholder" />

<TextView
android:id="@+id/newsAuthor"
style="@style/NewsArticle.Author"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
tools:text="ABC News" />

</RelativeLayout>

<!-- News Title -->
<TextView
android:id="@+id/newsAuthor"
style="@style/NewsArticle.Author"
android:id="@+id/newsTitle"
style="@style/NewsArticle.Title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
tools:text="ABC News" />
android:layout_below="@+id/newsImageView"
tools:text="Elon Musk says Tesla can't yet launch in India" />

</RelativeLayout>
<!-- Publish at -->
<TextView
android:id="@+id/newsPublishedAt"
style="@style/NewsArticle.PublishedAt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/newsTitle"
android:layout_marginStart="@dimen/normal_padding"
android:layout_marginLeft="@dimen/normal_padding"
tools:text="@string/str_test_date" />

<!-- News Title -->
<TextView
android:id="@+id/newsTitle"
style="@style/NewsArticle.Title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/newsImageView"
tools:text="Elon Musk says Tesla can't yet launch in India" />

<!-- Publish at -->
<TextView
android:id="@+id/newsPublishedAt"
style="@style/NewsArticle.PublishedAt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/newsTitle"
android:layout_marginStart="@dimen/normal_padding"
android:layout_marginLeft="@dimen/normal_padding"
tools:text="@string/str_test_date" />
</RelativeLayout>
</androidx.cardview.widget.CardView>

</RelativeLayout>
</androidx.cardview.widget.CardView>
</androidx.constraintlayout.motion.widget.MotionLayout>
26 changes: 26 additions & 0 deletions app/src/main/res/xml/row_news_article_scene.xml
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@@ -0,0 +1,26 @@
<?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">

<ConstraintSet android:id="@+id/start">
<Constraint android:id="@+id/widget" />
<Constraint
android:id="@+id/cardView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="300dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</ConstraintSet>

<ConstraintSet android:id="@+id/end">
<Constraint android:id="@id/widget" />
</ConstraintSet>

<Transition
app:autoTransition="animateToEnd"
app:constraintSetEnd="@id/end"
app:constraintSetStart="@+id/start"
app:layoutDuringTransition="honorRequest" />

</MotionScene>