improve activity transitions

app/src/main/java/com/dkanada/gramophone/ui/activities/LoginActivity.java

@@ -39,6 +39,12 @@ public class LoginActivity extends AbsBaseActivity implements View.OnClickListen
         setUpViews();
     }
 
+    @Override
+    public void onPause() {
+        super.onPause();
+        overridePendingTransition(0, R.anim.fade_quick);
+    }
+
     private void setUpViews() {
         setUpToolbar();
         setUpOnClickListeners();
@@ -104,10 +110,9 @@ public class LoginActivity extends AbsBaseActivity implements View.OnClickListen
                     PreferenceUtil.getInstance(LoginActivity.this).setUser(user);
                     PreferenceUtil.getInstance(LoginActivity.this).setToken(token);
 
-                    Intent intent = new Intent(LoginActivity.this, MainActivity.class);
+                    Intent intent = new Intent(LoginActivity.this, SplashActivity.class);
                     intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
                     startActivity(intent);
-                    finish();
                 } else {
                     Toast.makeText(LoginActivity.this, getResources().getString(R.string.error_version), Toast.LENGTH_SHORT).show();
                 }

app/src/main/java/com/dkanada/gramophone/ui/activities/MainActivity.java

@@ -39,6 +39,7 @@ public class MainActivity extends AbsSlidingMusicPanelActivity {
     private ActivityMainDrawerLayoutBinding binding;
     private ActivityMainContentBinding contentBinding;
     private NavigationDrawerHeaderBinding navigationBinding;
+    private boolean onLogout;
 
     @Nullable
     MainActivityFragmentCallbacks currentFragment;
@@ -88,6 +89,17 @@ public class MainActivity extends AbsSlidingMusicPanelActivity {
         });
     }
 
+    @Override
+    public void onPause() {
+        super.onPause();
+
+        // only override when logout selected
+        if (onLogout) {
+            overridePendingTransition(0, R.anim.fade_slow);
+            onLogout = false;
+        }
+    }
+
     private void setCurrentFragment(Fragment fragment) {
         getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, fragment, null).commit();
         currentFragment = (MainActivityFragmentCallbacks) fragment;
@@ -123,6 +135,7 @@ public class MainActivity extends AbsSlidingMusicPanelActivity {
                     new Handler().postDelayed(() -> startActivity(new Intent(MainActivity.this, AboutActivity.class)), 200);
                     break;
                 case R.id.nav_logout:
+                    onLogout = true;
                     ConfirmLogoutDialog.create().show(getSupportFragmentManager(), "CONFIRM_LOGOUT_DIALOG");
                     break;
             }

app/src/main/java/com/dkanada/gramophone/ui/activities/SplashActivity.java

@@ -24,6 +24,7 @@ public class SplashActivity extends AbsBaseActivity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+
         setContentView(R.layout.activity_splash);
         setDrawUnderStatusbar();
 
@@ -32,6 +33,12 @@ public class SplashActivity extends AbsBaseActivity {
         setTaskDescriptionColorAuto();
     }
 
+    @Override
+    public void onPause() {
+        super.onPause();
+        overridePendingTransition(0, R.anim.fade_delay);
+    }
+
     @Override
     protected void onResume() {
         super.onResume();

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

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <alpha
+        android:interpolator="@android:anim/accelerate_interpolator"
+        android:fromAlpha="1.0" android:toAlpha="0.0"
+        android:fillAfter="true"
+        android:startOffset="1600"
+        android:duration="200" />
+</set>

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

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <alpha
+        android:interpolator="@android:anim/accelerate_interpolator"
+        android:fromAlpha="1.0" android:toAlpha="0.0"
+        android:fillAfter="true"
+        android:duration="400" />
+</set>

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

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <alpha
+        android:interpolator="@android:anim/accelerate_interpolator"
+        android:fromAlpha="1.0" android:toAlpha="0.0"
+        android:fillAfter="true"
+        android:startOffset="800"
+        android:duration="200" />
+</set>