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Add spring-based navigation transitions #76

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Merged
merged 2 commits into from
Aug 31, 2025
Merged

Add spring-based navigation transitions #76

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ddf1a55
Add spring-based fragment navigation transitions
MihaiCristianCondrea Aug 31, 2025
5dabe47
Fix interpolator resource for spring transitions
MihaiCristianCondrea Aug 31, 2025
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16 changes: 16 additions & 0 deletions app/src/main/java/com/d4rk/androidtutorials/java/ui/screens/main/MainActivity.java
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@
import androidx.lifecycle.ViewModelProvider;
import androidx.navigation.NavController;
import androidx.navigation.NavGraph;
import androidx.navigation.NavOptions;
import androidx.navigation.fragment.NavHostFragment;
import androidx.navigation.ui.AppBarConfiguration;
import androidx.navigation.ui.NavigationUI;
Expand Down Expand Up @@ -217,10 +218,25 @@ private void observeViewModel() {
navGraph.setStartDestination(uiState.getDefaultNavDestination());
navController.setGraph(navGraph);

NavOptions springNavOptions = new NavOptions.Builder()
.setEnterAnim(R.anim.fragment_spring_enter)
.setExitAnim(R.anim.fragment_spring_exit)
.setPopEnterAnim(R.anim.fragment_spring_pop_enter)
.setPopExitAnim(R.anim.fragment_spring_pop_exit)
.build();

if (mBinding.navView instanceof BottomNavigationView bottomNav) {
NavigationUI.setupWithNavController(bottomNav, navController);
bottomNav.setOnItemSelectedListener(item -> {
navController.navigate(item.getItemId(), null, springNavOptions);
return true;
});
} else if (mBinding.navView instanceof NavigationRailView railView) {
NavigationUI.setupWithNavController(railView, navController);
railView.setOnItemSelectedListener(item -> {
navController.navigate(item.getItemId(), null, springNavOptions);
return true;
});
}

setSupportActionBar(mBinding.toolbar);
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13 changes: 13 additions & 0 deletions app/src/main/res/anim/fragment_spring_enter.xml
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@@ -0,0 +1,13 @@
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:fromXDelta="100%"
android:toXDelta="0%"
android:duration="300"
android:interpolator="@interpolator/fragment_spring" />
<alpha
android:fromAlpha="0"
android:toAlpha="1"
android:duration="300"
android:interpolator="@interpolator/fragment_spring" />
</set>
13 changes: 13 additions & 0 deletions app/src/main/res/anim/fragment_spring_exit.xml
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@@ -0,0 +1,13 @@
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:fromXDelta="0%"
android:toXDelta="-100%"
android:duration="300"
android:interpolator="@interpolator/fragment_spring" />
<alpha
android:fromAlpha="1"
android:toAlpha="0"
android:duration="300"
android:interpolator="@interpolator/fragment_spring" />
</set>
13 changes: 13 additions & 0 deletions app/src/main/res/anim/fragment_spring_pop_enter.xml
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@@ -0,0 +1,13 @@
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:fromXDelta="-100%"
android:toXDelta="0%"
android:duration="300"
android:interpolator="@interpolator/fragment_spring" />
<alpha
android:fromAlpha="0"
android:toAlpha="1"
android:duration="300"
android:interpolator="@interpolator/fragment_spring" />
</set>
13 changes: 13 additions & 0 deletions app/src/main/res/anim/fragment_spring_pop_exit.xml
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@@ -0,0 +1,13 @@
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:fromXDelta="0%"
android:toXDelta="100%"
android:duration="300"
android:interpolator="@interpolator/fragment_spring" />
<alpha
android:fromAlpha="1"
android:toAlpha="0"
android:duration="300"
android:interpolator="@interpolator/fragment_spring" />
</set>
3 changes: 3 additions & 0 deletions app/src/main/res/interpolator/fragment_spring.xml
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@@ -0,0 +1,3 @@
<?xml version="1.0" encoding="utf-8"?>
<overshootInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
android:tension="1.0"/>
9 changes: 9 additions & 0 deletions app/src/main/res/transition/fragment_spring.xml
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@@ -0,0 +1,9 @@
<?xml version="1.0" encoding="utf-8"?>
<transitionSet xmlns:android="http://schemas.android.com/apk/res/android">
<changeBounds
android:duration="300"
android:interpolator="@interpolator/fragment_spring" />
<fade
android:duration="300"
android:interpolator="@interpolator/fragment_spring" />
</transitionSet>