Added card flip animation to feed info fragment

5 files changed, 91 insertions, 0 deletions

diff --git a/app/src/main/res/anim/card_flip_left_in.xml b/app/src/main/res/anim/card_flip_left_in.xml
new file mode 100644
index 000000000..0ffc85aec
--- /dev/null
+++ b/app/src/main/res/anim/card_flip_left_in.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- Before rotating, immediately set the alpha to 0. -->
+    <objectAnimator
+            android:valueFrom="1.0"
+            android:valueTo="0.0"
+            android:propertyName="alpha"
+            android:duration="0" />
+
+    <!-- Rotate. -->
+    <objectAnimator
+            android:valueFrom="-180"
+            android:valueTo="0"
+            android:propertyName="rotationY"
+            android:interpolator="@android:interpolator/accelerate_decelerate"
+            android:duration="@integer/card_flip_time_full" />
+
+    <!-- Half-way through the rotation (see startOffset), set the alpha to 1. -->
+    <objectAnimator
+            android:valueFrom="0.0"
+            android:valueTo="1.0"
+            android:propertyName="alpha"
+            android:startOffset="@integer/card_flip_time_half"
+            android:duration="1" />
+</set>
\ No newline at end of file
diff --git a/app/src/main/res/anim/card_flip_left_out.xml b/app/src/main/res/anim/card_flip_left_out.xml
new file mode 100644
index 000000000..817f0d3fc
--- /dev/null
+++ b/app/src/main/res/anim/card_flip_left_out.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- Rotate. -->
+    <objectAnimator
+            android:valueFrom="0"
+            android:valueTo="180"
+            android:propertyName="rotationY"
+            android:interpolator="@android:interpolator/accelerate_decelerate"
+            android:duration="@integer/card_flip_time_full" />
+
+    <!-- Half-way through the rotation (see startOffset), set the alpha to 0. -->
+    <objectAnimator
+            android:valueFrom="1.0"
+            android:valueTo="0.0"
+            android:propertyName="alpha"
+            android:startOffset="@integer/card_flip_time_half"
+            android:duration="1" />
+</set>
\ No newline at end of file
diff --git a/app/src/main/res/anim/card_flip_right_in.xml b/app/src/main/res/anim/card_flip_right_in.xml
new file mode 100644
index 000000000..31ff1dde5
--- /dev/null
+++ b/app/src/main/res/anim/card_flip_right_in.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- Before rotating, immediately set the alpha to 0. -->
+    <objectAnimator
+            android:valueFrom="1.0"
+            android:valueTo="0.0"
+            android:propertyName="alpha"
+            android:duration="0" />
+
+    <!-- Rotate. -->
+    <objectAnimator
+            android:valueFrom="180"
+            android:valueTo="0"
+            android:propertyName="rotationY"
+            android:interpolator="@android:interpolator/accelerate_decelerate"
+            android:duration="@integer/card_flip_time_full" />
+
+    <!-- Half-way through the rotation (see startOffset), set the alpha to 1. -->
+    <objectAnimator
+            android:valueFrom="0.0"
+            android:valueTo="1.0"
+            android:propertyName="alpha"
+            android:startOffset="@integer/card_flip_time_half"
+            android:duration="1" />
+</set>
\ No newline at end of file
diff --git a/app/src/main/res/anim/card_flip_right_out.xml b/app/src/main/res/anim/card_flip_right_out.xml
new file mode 100644
index 000000000..b57113fea
--- /dev/null
+++ b/app/src/main/res/anim/card_flip_right_out.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- Rotate. -->
+    <objectAnimator
+            android:valueFrom="0"
+            android:valueTo="-180"
+            android:propertyName="rotationY"
+            android:interpolator="@android:interpolator/accelerate_decelerate"
+            android:duration="@integer/card_flip_time_full" />
+
+    <!-- Half-way through the rotation (see startOffset), set the alpha to 0. -->
+    <objectAnimator
+            android:valueFrom="1.0"
+            android:valueTo="0.0"
+            android:propertyName="alpha"
+            android:startOffset="@integer/card_flip_time_half"
+            android:duration="1" />
+</set>
\ No newline at end of file
diff --git a/app/src/main/res/values/integers.xml b/app/src/main/res/values/integers.xml
new file mode 100644
index 000000000..8c444ee8b
--- /dev/null
+++ b/app/src/main/res/values/integers.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <integer name="card_flip_time_full">400</integer>
+    <integer name="card_flip_time_half">200</integer>
+</resources>
\ No newline at end of file