Fixed bottomBar Slide Animation

app/src/main/java/org/fossasia/phimpme/MyApplication.java

@@ -23,6 +23,7 @@ public class MyApplication extends Application {
   private HandlingAlbums albums = null;
   public static Context applicationContext;
   private RefWatcher refWatcher;
+  public int NavItem = 1;
 
   public Album getAlbum() {
     return albums.dispAlbums.size() > 0 ? albums.getCurrentAlbum() : Album.getEmptyAlbum();

app/src/main/java/org/fossasia/phimpme/accounts/AccountActivity.java

@@ -38,6 +38,7 @@
 import com.twitter.sdk.android.core.identity.TwitterAuthClient;
 import io.realm.RealmQuery;
 import java.util.ArrayList;
+import org.fossasia.phimpme.MyApplication;
 import org.fossasia.phimpme.R;
 import org.fossasia.phimpme.base.PhimpmeProgressBarHandler;
 import org.fossasia.phimpme.base.RecyclerItemClickListner;
@@ -92,7 +93,7 @@ public void onCreate(Bundle savedInstanceState) {
     ActivitySwitchHelper.setContext(this);
     setSupportActionBar(toolbar);
     parentLayout.setBackgroundColor(getBackgroundColor());
-    overridePendingTransition(R.anim.right_to_left, R.anim.left_to_right);
+    startSlideAnimation(2);
     phimpmeProgressBarHandler = new PhimpmeProgressBarHandler(this);
     ThemeHelper themeHelper = new ThemeHelper(this);
     toolbar.setPopupTheme(getPopupToolbarStyle());
@@ -110,6 +111,15 @@ public void onCreate(Bundle savedInstanceState) {
     initObserver();
   }
 
+  private void startSlideAnimation(int currentMenuItem) {
+    if (((MyApplication) this.getApplication()).NavItem > currentMenuItem)
+      overridePendingTransition(R.anim.slide_in_left, R.anim.slide_out_right);
+    else if (((MyApplication) this.getApplication()).NavItem < currentMenuItem)
+      overridePendingTransition(R.anim.slide_in_right, R.anim.slide_out_left);
+    // Update the Global NavItem
+    ((MyApplication) this.getApplication()).NavItem = currentMenuItem;
+  }
+
   private void initObserver() {
     accountViewModel.error.observe(
         this,
@@ -348,7 +358,6 @@ public void onBackPressed() {
     Intent intent = new Intent(this, LFMainActivity.class);
     startActivity(intent);
     finish();
-    overridePendingTransition(R.anim.left_to_right, R.anim.right_to_left);
   }
 
   private void boxAuthentication() {

app/src/main/java/org/fossasia/phimpme/base/BaseActivity.java

@@ -141,7 +141,6 @@ public boolean onNavigationItemSelected(@NonNull final MenuItem item) {
           break;
       }
       finish();
-      overridePendingTransition(R.anim.left_to_right, R.anim.right_to_left);
     }
     return true;
   }

app/src/main/java/org/fossasia/phimpme/gallery/activities/LFMainActivity.java

@@ -106,6 +106,7 @@
 import java.util.Locale;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
+import org.fossasia.phimpme.MyApplication;
 import org.fossasia.phimpme.R;
 import org.fossasia.phimpme.base.SharedMediaActivity;
 import org.fossasia.phimpme.data.local.FavouriteImagesModel;
@@ -661,7 +662,7 @@ public void onCreate(Bundle savedInstanceState) {
     rvAlbums = findViewById(R.id.grid_albums);
     rvMedia = findViewById(R.id.grid_photos);
 
-    overridePendingTransition(R.anim.right_to_left, R.anim.left_to_right);
+    startSlideAnimation(1);
     SP = PreferenceUtil.getInstance(getApplicationContext());
     albumsMode = true;
     editMode = false;
@@ -730,6 +731,15 @@ public void onResume() {
     firstLaunch = false;
   }
 
+  private void startSlideAnimation(int currentMenuItem) {
+    if (((MyApplication) this.getApplication()).NavItem > currentMenuItem)
+      overridePendingTransition(R.anim.slide_in_left, R.anim.slide_out_right);
+    else if (((MyApplication) this.getApplication()).NavItem < currentMenuItem)
+      overridePendingTransition(R.anim.slide_in_right, R.anim.slide_out_left);
+    // Update the Global NavItem
+    ((MyApplication) this.getApplication()).NavItem = currentMenuItem;
+  }
+
   private void displayCurrentAlbumMedia(boolean reload) {
     toolbar.setTitle(getAlbum().getName());
     toolbar.setNavigationIcon(getToolbarIcon(GoogleMaterial.Icon.gmd_arrow_back));

app/src/main/java/org/fossasia/phimpme/opencamera/Camera/CameraActivity.java

@@ -78,6 +78,7 @@
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
+import org.fossasia.phimpme.MyApplication;
 import org.fossasia.phimpme.R;
 import org.fossasia.phimpme.base.ThemedActivity;
 import org.fossasia.phimpme.gallery.activities.LFMainActivity;
@@ -180,7 +181,7 @@ public void onCreate(Bundle savedInstanceState) {
     }
     super.onCreate(savedInstanceState);
     ButterKnife.bind(this);
-    overridePendingTransition(R.anim.right_to_left, R.anim.left_to_right);
+    startSlideAnimation(0);
     ButterKnife.bind(this);
     PreferenceManager.setDefaultValues(
         this, R.xml.preferences, false); // initialise any unset preferences to their default values
@@ -886,6 +887,16 @@ public void onResume() {
     }
   }
 
+  private void startSlideAnimation(int currentMenuItem) {
+
+    if (((MyApplication) this.getApplication()).NavItem > currentMenuItem)
+      overridePendingTransition(R.anim.slide_in_left, R.anim.slide_out_right);
+    else if (((MyApplication) this.getApplication()).NavItem < currentMenuItem)
+      overridePendingTransition(R.anim.slide_in_right, R.anim.slide_out_left);
+    // Update the Global NavItem
+    ((MyApplication) this.getApplication()).NavItem = currentMenuItem;
+  }
+
   private void defaultBrightness() {
     WindowManager.LayoutParams layout = getWindow().getAttributes();
     layout.screenBrightness = WindowManager.LayoutParams.BRIGHTNESS_OVERRIDE_NONE;
@@ -1404,7 +1415,6 @@ public void onBackPressed() {
     Intent intent = new Intent(this, LFMainActivity.class);
     startActivity(intent);
     finish();
-    overridePendingTransition(R.anim.left_to_right, R.anim.right_to_left);
   }
 
   public boolean usingKitKatImmersiveMode() {

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

@@ -0,0 +1,8 @@
+<?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:toXDelta="0" />
+</set>

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

@@ -0,0 +1,8 @@
+<?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:toXDelta="0" />
+</set>

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

@@ -0,0 +1,8 @@
+<?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"
+        android:toXDelta="-100%p" />
+</set>

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

@@ -0,0 +1,8 @@
+<?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"
+        android:toXDelta="100%p" />
+</set>