Animations for activity transitions

app/src/main/java/acr/browser/lightning/activity/AppCompatPreferenceActivity.java

@@ -13,6 +13,8 @@ import android.view.MenuInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import acr.browser.lightning.R;
+
 /**
  * A {@link android.preference.PreferenceActivity} which implements and proxies the necessary calls
  * to be used with AppCompat.
@@ -26,6 +28,7 @@ public abstract class AppCompatPreferenceActivity extends PreferenceActivity {
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
+        overridePendingTransition(R.anim.slide_in_from_right, R.anim.fade_out_scale);
         getDelegate().installViewFactory();
         getDelegate().onCreate(savedInstanceState);
         super.onCreate(savedInstanceState);
@@ -89,6 +92,14 @@ public abstract class AppCompatPreferenceActivity extends PreferenceActivity {
         getDelegate().onConfigurationChanged(newConfig);
     }
 
+    @Override
+    protected void onPause() {
+        super.onPause();
+        if (isFinishing()) {
+            overridePendingTransition(R.anim.fade_in_scale, R.anim.slide_out_to_right);
+        }
+    }
+
     @Override
     protected void onStop() {
         super.onStop();

app/src/main/java/acr/browser/lightning/activity/BrowserActivity.java

@@ -782,6 +782,7 @@ public abstract class BrowserActivity extends ThemableBrowserActivity implements
                 return true;
             case R.id.action_incognito:
                 startActivity(new Intent(this, IncognitoActivity.class));
+                overridePendingTransition(R.anim.slide_up_in, R.anim.fade_out_scale);
                 return true;
             case R.id.action_share:
                 if (mCurrentView != null && !mCurrentView.getUrl().startsWith(Constants.FILE)) {
@@ -1444,6 +1445,9 @@ public abstract class BrowserActivity extends ThemableBrowserActivity implements
         } catch (IllegalArgumentException e) {
             e.printStackTrace();
         }
+        if (isIncognito() && isFinishing()) {
+            overridePendingTransition(R.anim.fade_in_scale, R.anim.slide_down_out);
+        }
     }
 
     void saveOpenTabs() {

app/src/main/res/anim/fade_in_scale.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <scale
+        android:duration="@android:integer/config_mediumAnimTime"
+        android:fromXScale="0.85"
+        android:fromYScale="0.85"
+        android:interpolator="@android:interpolator/decelerate_cubic"
+        android:pivotX="50%p"
+        android:pivotY="50%p"
+        android:toXScale="1.0"
+        android:toYScale="1.0" />
+    <alpha
+        android:duration="@android:integer/config_mediumAnimTime"
+        android:fromAlpha="0.0"
+        android:toAlpha="1.0" />
+</set>

app/src/main/res/anim/fade_out_scale.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <scale
+        android:duration="@android:integer/config_mediumAnimTime"
+        android:fromXScale="1.0"
+        android:fromYScale="1.0"
+        android:interpolator="@android:interpolator/decelerate_cubic"
+        android:pivotX="50%p"
+        android:pivotY="50%p"
+        android:toXScale="0.85"
+        android:toYScale="0.85" />
+    <alpha
+        android:duration="@android:integer/config_mediumAnimTime"
+        android:fromAlpha="1.0"
+        android:toAlpha="0.0" />
+</set>

app/src/main/res/anim/slide_down_out.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate
+        android:duration="@android:integer/config_mediumAnimTime"
+        android:fromYDelta="0%p"
+        android:interpolator="@android:interpolator/accelerate_cubic"
+        android:toYDelta="100%p" />
+    <alpha
+        android:duration="@android:integer/config_mediumAnimTime"
+        android:fromAlpha="1.0"
+        android:toAlpha="0.0" />
+</set>

app/src/main/res/anim/slide_in_from_right.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate
+        android:duration="@android:integer/config_mediumAnimTime"
+        android:fromXDelta="100%p"
+        android:interpolator="@android:interpolator/decelerate_cubic"
+        android:toXDelta="0%p" />
+    <!--<alpha-->
+    <!--android:duration="@android:integer/config_mediumAnimTime"-->
+    <!--android:fromAlpha="0.0"-->
+    <!--android:toAlpha="1.0" />-->
+</set>

app/src/main/res/anim/slide_out_to_right.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate
+        android:duration="@android:integer/config_mediumAnimTime"
+        android:fromXDelta="0%p"
+        android:interpolator="@android:interpolator/decelerate_cubic"
+        android:toXDelta="100%p" />
+    <!--<alpha-->
+    <!--android:duration="@android:integer/config_mediumAnimTime"-->
+    <!--android:fromAlpha="0.0"-->
+    <!--android:toAlpha="1.0" />-->
+</set>

app/src/main/res/anim/slide_up_in.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate
+        android:duration="@android:integer/config_mediumAnimTime"
+        android:fromYDelta="100%p"
+        android:interpolator="@android:interpolator/decelerate_cubic"
+        android:toYDelta="0%p" />
+    <!--<alpha-->
+        <!--android:duration="@android:integer/config_mediumAnimTime"-->
+        <!--android:fromAlpha="0.5"-->
+        <!--android:toAlpha="1.0" />-->
+</set>