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[NavigationRail] Navigation rail expansion
PiperOrigin-RevId: 689848271
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39 changes: 39 additions & 0 deletions
39
...va/io/material/catalog/navigationrail/res/layout/cat_navigation_rail_efab_header_view.xml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <!-- | ||
| Copyright 2024 The Android Open Source Project | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| https://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| --> | ||
| <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" | ||
| xmlns:app="http://schemas.android.com/apk/res-auto" | ||
| android:orientation="vertical" | ||
| android:id="@+id/cat_navigation_rail_efab_container" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="wrap_content" | ||
| android:clipToPadding="false" | ||
| android:clipChildren="false" | ||
| android:layout_gravity="top|start"> | ||
| <ImageView | ||
| android:id="@+id/cat_navigation_rail_expand_button" | ||
| android:layout_width="56dp" | ||
| android:layout_height="56dp" | ||
| android:src="@drawable/ic_drawer_menu_24px" | ||
| android:contentDescription="@null" | ||
| android:scaleType="center" /> | ||
| <com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton | ||
| android:id="@+id/cat_navigation_rail_efab" | ||
| android:layout_width="wrap_content" | ||
| android:layout_height="wrap_content" | ||
| app:icon="@drawable/ic_add_24px" | ||
| android:text="@string/cat_navigation_rail_efab_text"/> | ||
| </LinearLayout> |
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71 changes: 71 additions & 0 deletions
71
lib/java/com/google/android/material/navigationrail/LabelMoveTransition.java
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| @@ -0,0 +1,71 @@ | ||
| /* | ||
| * Copyright (C) 2024 The Android Open Source Project | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package com.google.android.material.navigationrail; | ||
|
|
||
| import android.animation.Animator; | ||
| import android.animation.ValueAnimator; | ||
| import android.view.View; | ||
| import android.view.ViewGroup; | ||
| import androidx.annotation.NonNull; | ||
| import androidx.annotation.Nullable; | ||
| import androidx.transition.Transition; | ||
| import androidx.transition.TransitionValues; | ||
| import com.google.android.material.navigation.NavigationBarMenuItemView; | ||
|
|
||
| /** | ||
| * A {@link Transition} that animates the {@link NavigationBarMenuItemView} label horizontally when | ||
| * the label is fading in. | ||
| */ | ||
| class LabelMoveTransition extends Transition { | ||
|
|
||
| private static final String LABEL_VISIBILITY = "NavigationRailLabelVisibility"; | ||
| private static final float HORIZONTAL_DISTANCE = -30f; | ||
|
|
||
| @Override | ||
| public void captureStartValues(@NonNull TransitionValues transitionValues) { | ||
| transitionValues.values.put(LABEL_VISIBILITY, transitionValues.view.getVisibility()); | ||
| } | ||
|
|
||
| @Override | ||
| public void captureEndValues(@NonNull TransitionValues transitionValues) { | ||
| transitionValues.values.put(LABEL_VISIBILITY, transitionValues.view.getVisibility()); | ||
| } | ||
|
|
||
| @Nullable | ||
| @Override | ||
| public Animator createAnimator(@NonNull ViewGroup sceneRoot, | ||
| @Nullable TransitionValues startValues, | ||
| @Nullable TransitionValues endValues) { | ||
| if (startValues == null || endValues == null | ||
| || startValues.values.get(LABEL_VISIBILITY) == null | ||
| || endValues.values.get(LABEL_VISIBILITY) == null) { | ||
| return super.createAnimator(sceneRoot, startValues, endValues); | ||
| } | ||
| // Only animate if the view is appearing | ||
| if ((int) startValues.values.get(LABEL_VISIBILITY) != View.GONE | ||
| || (int) endValues.values.get(LABEL_VISIBILITY) != View.VISIBLE) { | ||
| return super.createAnimator(sceneRoot, startValues, endValues); | ||
| } | ||
| View view = endValues.view; | ||
| ValueAnimator animator = ValueAnimator.ofFloat(0f, 1f); | ||
| animator.addUpdateListener( | ||
| animation -> { | ||
| float progress = animation.getAnimatedFraction(); | ||
| view.setTranslationX(HORIZONTAL_DISTANCE * (1 - progress)); | ||
| }); | ||
| return animator; | ||
| } | ||
| } |
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