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MihaiCristianCondreaMihaiCristianCondrea
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Merge pull request #76 from MihaiCristianCondrea/codex/add-navcontroller-transitions-with-spring-effects
Add spring-based navigation transitions
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‎app/src/main/java/com/d4rk/androidtutorials/java/ui/screens/main/MainActivity.java‎

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@@ -24,6 +24,7 @@
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import androidx.lifecycle.ViewModelProvider;
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import androidx.navigation.NavController;
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import androidx.navigation.NavGraph;
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import androidx.navigation.NavOptions;
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import androidx.navigation.fragment.NavHostFragment;
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import androidx.navigation.ui.AppBarConfiguration;
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import androidx.navigation.ui.NavigationUI;
@@ -217,10 +218,25 @@ private void observeViewModel() {
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navGraph.setStartDestination(uiState.getDefaultNavDestination());
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navController.setGraph(navGraph);
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NavOptions springNavOptions = new NavOptions.Builder()
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.setEnterAnim(R.anim.fragment_spring_enter)
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.setExitAnim(R.anim.fragment_spring_exit)
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.setPopEnterAnim(R.anim.fragment_spring_pop_enter)
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.setPopExitAnim(R.anim.fragment_spring_pop_exit)
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.build();
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if (mBinding.navView instanceof BottomNavigationView bottomNav) {
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NavigationUI.setupWithNavController(bottomNav, navController);
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bottomNav.setOnItemSelectedListener(item -> {
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navController.navigate(item.getItemId(), null, springNavOptions);
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return true;
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});
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} else if (mBinding.navView instanceof NavigationRailView railView) {
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NavigationUI.setupWithNavController(railView, navController);
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railView.setOnItemSelectedListener(item -> {
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navController.navigate(item.getItemId(), null, springNavOptions);
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return true;
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});
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}
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setSupportActionBar(mBinding.toolbar);

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

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<?xml version="1.0" encoding="utf-8"?>
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<set xmlns:android="http://schemas.android.com/apk/res/android">
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<translate
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android:fromXDelta="100%"
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android:toXDelta="0%"
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android:duration="300"
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android:interpolator="@interpolator/fragment_spring" />
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<alpha
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android:fromAlpha="0"
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android:toAlpha="1"
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android:duration="300"
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android:interpolator="@interpolator/fragment_spring" />
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</set>

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

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<?xml version="1.0" encoding="utf-8"?>
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<set xmlns:android="http://schemas.android.com/apk/res/android">
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<translate
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android:fromXDelta="0%"
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android:toXDelta="-100%"
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android:duration="300"
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android:interpolator="@interpolator/fragment_spring" />
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<alpha
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android:fromAlpha="1"
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android:toAlpha="0"
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android:duration="300"
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android:interpolator="@interpolator/fragment_spring" />
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</set>

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

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<?xml version="1.0" encoding="utf-8"?>
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<set xmlns:android="http://schemas.android.com/apk/res/android">
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<translate
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android:fromXDelta="-100%"
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android:toXDelta="0%"
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android:duration="300"
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android:interpolator="@interpolator/fragment_spring" />
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<alpha
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android:fromAlpha="0"
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android:toAlpha="1"
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android:duration="300"
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android:interpolator="@interpolator/fragment_spring" />
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</set>

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

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<?xml version="1.0" encoding="utf-8"?>
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<set xmlns:android="http://schemas.android.com/apk/res/android">
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<translate
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android:fromXDelta="0%"
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android:toXDelta="100%"
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android:duration="300"
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android:interpolator="@interpolator/fragment_spring" />
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<alpha
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android:fromAlpha="1"
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android:toAlpha="0"
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android:duration="300"
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android:interpolator="@interpolator/fragment_spring" />
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</set>

‎app/src/main/res/interpolator/fragment_spring.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<overshootInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
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android:tension="1.0"/>

‎app/src/main/res/transition/fragment_spring.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<transitionSet xmlns:android="http://schemas.android.com/apk/res/android">
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<changeBounds
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android:duration="300"
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android:interpolator="@interpolator/fragment_spring" />
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<fade
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android:duration="300"
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android:interpolator="@interpolator/fragment_spring" />
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</transitionSet>

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