diff --git a/quickstep/AndroidManifest.xml b/quickstep/AndroidManifest.xml
index 826a27553c..5d871c363f 100644
--- a/quickstep/AndroidManifest.xml
+++ b/quickstep/AndroidManifest.xml
@@ -91,6 +91,17 @@
android:taskAffinity="${packageName}.locktask"
android:directBootAware="true" />
+
+
+
+
+
+
+
diff --git a/quickstep/res/drawable/ic_bulb_outline.xml b/quickstep/res/drawable/ic_bulb_outline.xml
deleted file mode 100644
index ef7bf9a07e..0000000000
--- a/quickstep/res/drawable/ic_bulb_outline.xml
+++ /dev/null
@@ -1,29 +0,0 @@
-
-
-
-
-
\ No newline at end of file
diff --git a/quickstep/res/values/strings.xml b/quickstep/res/values/strings.xml
index 378858ffcb..2bc5015a26 100644
--- a/quickstep/res/values/strings.xml
+++ b/quickstep/res/values/strings.xml
@@ -69,13 +69,6 @@
Close
-
- Try the new back gesture
-
- Learn how to go back while using your apps
-
- Try it
-
Try the back gesture
diff --git a/quickstep/res/xml/notification_action.xml b/quickstep/res/xml/notification_action.xml
deleted file mode 100644
index cc3612e2d8..0000000000
--- a/quickstep/res/xml/notification_action.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-
-
-
-
\ No newline at end of file
diff --git a/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialActivity.java b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialActivity.java
new file mode 100644
index 0000000000..295ab4897e
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialActivity.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2020 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.android.quickstep.interaction;
+
+import android.graphics.Color;
+import android.os.Bundle;
+import android.view.View;
+import android.view.Window;
+
+import androidx.fragment.app.FragmentActivity;
+
+import com.android.launcher3.R;
+import com.android.quickstep.interaction.BackGestureTutorialFragment.TutorialStep;
+import com.android.quickstep.interaction.BackGestureTutorialFragment.TutorialType;
+
+import java.util.Optional;
+
+/** Shows the Back gesture interactive tutorial in full screen mode. */
+public class BackGestureTutorialActivity extends FragmentActivity {
+
+ Optional mFragment = Optional.empty();
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ requestWindowFeature(Window.FEATURE_NO_TITLE);
+ setContentView(R.layout.back_gesture_tutorial_activity);
+
+ mFragment = Optional.of(BackGestureTutorialFragment.newInstance(TutorialStep.ENGAGED,
+ TutorialType.RIGHT_EDGE_BACK_NAVIGATION));
+ getSupportFragmentManager().beginTransaction()
+ .add(R.id.back_gesture_tutorial_fragment_container, mFragment.get())
+ .commit();
+ }
+
+ @Override
+ public void onWindowFocusChanged(boolean hasFocus) {
+ super.onWindowFocusChanged(hasFocus);
+ if (hasFocus) {
+ hideSystemUI();
+ }
+ }
+
+ @Override
+ public void onBackPressed() {
+ if (mFragment.isPresent()) {
+ mFragment.get().onBackPressed();
+ }
+ }
+
+ private void hideSystemUI() {
+ getWindow().getDecorView().setSystemUiVisibility(
+ View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
+ | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
+ | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
+ | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
+ | View.SYSTEM_UI_FLAG_FULLSCREEN);
+ getWindow().setNavigationBarColor(Color.TRANSPARENT);
+ }
+}
diff --git a/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialConfirmController.java b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialConfirmController.java
new file mode 100644
index 0000000000..486d6765d1
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialConfirmController.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2020 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.android.quickstep.interaction;
+
+import android.view.View;
+
+import com.android.launcher3.R;
+import com.android.quickstep.interaction.BackGestureTutorialFragment.TutorialStep;
+
+import java.util.Optional;
+
+/**
+ * An implementation of {@link BackGestureTutorialController} that defines the behavior of the
+ * {@link TutorialStep#CONFIRM}.
+ */
+final class BackGestureTutorialConfirmController extends BackGestureTutorialController {
+
+ BackGestureTutorialConfirmController(BackGestureTutorialFragment fragment,
+ BackGestureTutorialTypeInfo tutorialTypeInfo) {
+ super(fragment, TutorialStep.CONFIRM, Optional.of(tutorialTypeInfo));
+ }
+
+ @Override
+ Optional getTitleStringId() {
+ return Optional.of(mTutorialTypeInfo.get().getTutorialConfirmTitleId());
+ }
+
+ @Override
+ Optional getSubtitleStringId() {
+ return Optional.of(mTutorialTypeInfo.get().getTutorialConfirmSubtitleId());
+ }
+
+ @Override
+ Optional getActionButtonStringId() {
+ return Optional.of(R.string.back_gesture_tutorial_action_button_label);
+ }
+
+ @Override
+ Optional getActionTextButtonStringId() {
+ return Optional.of(R.string.back_gesture_tutorial_action_text_button_label);
+ }
+
+ @Override
+ void onActionButtonClicked(View button) {
+ hideHandCoachingAnimation();
+ if (button == mActionTextButton) {
+ mFragment.startSystemNavigationSetting();
+ }
+ mFragment.closeTutorial();
+ }
+}
diff --git a/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialController.java b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialController.java
new file mode 100644
index 0000000000..3fe91a3a8b
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialController.java
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2020 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.android.quickstep.interaction;
+
+import android.view.View;
+import android.widget.Button;
+import android.widget.ImageButton;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import com.android.launcher3.R;
+import com.android.quickstep.interaction.BackGestureTutorialFragment.TutorialStep;
+import com.android.quickstep.interaction.BackGestureTutorialFragment.TutorialType;
+
+import java.util.Optional;
+
+/**
+ * Defines the behavior of the particular {@link TutorialStep} and implements the transition to it.
+ */
+abstract class BackGestureTutorialController {
+
+ final BackGestureTutorialFragment mFragment;
+ final TutorialStep mTutorialStep;
+ final Optional mTutorialTypeInfo;
+ final Button mActionTextButton;
+ final Button mActionButton;
+ final TextView mSubtitleTextView;
+ final ImageButton mCloseButton;
+ final BackGestureTutorialHandAnimation mHandCoachingAnimation;
+ final LinearLayout mTitlesContainer;
+
+ private final TextView mTitleTextView;
+ private final ImageView mHandCoachingView;
+
+ BackGestureTutorialController(
+ BackGestureTutorialFragment fragment,
+ TutorialStep tutorialStep,
+ Optional tutorialTypeInfo) {
+ mFragment = fragment;
+ mTutorialStep = tutorialStep;
+ mTutorialTypeInfo = tutorialTypeInfo;
+
+ View rootView = fragment.getRootView();
+ mActionTextButton = rootView.findViewById(
+ R.id.back_gesture_tutorial_fragment_action_text_button);
+ mActionButton = rootView.findViewById(R.id.back_gesture_tutorial_fragment_action_button);
+ mSubtitleTextView = rootView.findViewById(
+ R.id.back_gesture_tutorial_fragment_subtitle_view);
+ mTitleTextView = rootView.findViewById(R.id.back_gesture_tutorial_fragment_title_view);
+ mHandCoachingView = rootView.findViewById(
+ R.id.back_gesture_tutorial_fragment_hand_coaching);
+ mHandCoachingAnimation = mFragment.getHandAnimation();
+ mHandCoachingView.bringToFront();
+ mCloseButton = rootView.findViewById(R.id.back_gesture_tutorial_fragment_close_button);
+ mTitlesContainer = rootView.findViewById(
+ R.id.back_gesture_tutorial_fragment_titles_container);
+ }
+
+ void transitToController() {
+ updateTitles();
+ updateActionButtons();
+ }
+
+ void hideHandCoachingAnimation() {
+ mHandCoachingAnimation.stop();
+ }
+
+ void onGestureDetected() {
+ hideHandCoachingAnimation();
+
+ if (mTutorialStep == TutorialStep.CONFIRM) {
+ mFragment.closeTutorial();
+ return;
+ }
+
+ if (mTutorialTypeInfo.get().getTutorialType() == TutorialType.RIGHT_EDGE_BACK_NAVIGATION) {
+ mFragment.changeController(TutorialStep.ENGAGED,
+ TutorialType.LEFT_EDGE_BACK_NAVIGATION);
+ return;
+ }
+
+ mFragment.changeController(TutorialStep.CONFIRM);
+ }
+
+ abstract Optional getTitleStringId();
+
+ abstract Optional getSubtitleStringId();
+
+ abstract Optional getActionButtonStringId();
+
+ abstract Optional getActionTextButtonStringId();
+
+ abstract void onActionButtonClicked(View button);
+
+ private void updateActionButtons() {
+ updateButton(mActionButton, getActionButtonStringId(), this::onActionButtonClicked);
+ updateButton(mActionTextButton, getActionTextButtonStringId(), this::onActionButtonClicked);
+ }
+
+ private static void updateButton(Button button, Optional stringId,
+ View.OnClickListener listener) {
+ if (!stringId.isPresent()) {
+ button.setVisibility(View.INVISIBLE);
+ return;
+ }
+
+ button.setVisibility(View.VISIBLE);
+ button.setText(stringId.get());
+ button.setOnClickListener(listener);
+ }
+
+ private void updateTitles() {
+ updateTitleView(mTitleTextView, getTitleStringId(),
+ R.style.TextAppearance_BackGestureTutorial_Title);
+ updateTitleView(mSubtitleTextView, getSubtitleStringId(),
+ R.style.TextAppearance_BackGestureTutorial_Subtitle);
+ }
+
+ private static void updateTitleView(TextView textView, Optional stringId,
+ int styleId) {
+ if (!stringId.isPresent()) {
+ textView.setVisibility(View.GONE);
+ return;
+ }
+
+ textView.setVisibility(View.VISIBLE);
+ textView.setText(stringId.get());
+ textView.setTextAppearance(styleId);
+ }
+
+ /**
+ * Constructs {@link BackGestureTutorialController} for providing {@link TutorialType} and
+ * {@link TutorialStep}.
+ */
+ static Optional getTutorialController(
+ BackGestureTutorialFragment fragment, TutorialStep tutorialStep,
+ TutorialType tutorialType) {
+ BackGestureTutorialTypeInfo tutorialTypeInfo =
+ BackGestureTutorialTypeInfoProvider.getTutorialTypeInfo(tutorialType);
+ switch (tutorialStep) {
+ case ENGAGED:
+ return Optional.of(
+ new BackGestureTutorialEngagedController(fragment, tutorialTypeInfo));
+ case CONFIRM:
+ return Optional.of(
+ new BackGestureTutorialConfirmController(fragment, tutorialTypeInfo));
+ default:
+ throw new AssertionError("Unexpected tutorial step: " + tutorialStep);
+ }
+ }
+}
diff --git a/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialEngagedController.java b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialEngagedController.java
new file mode 100644
index 0000000000..c9ee1e2006
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialEngagedController.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2020 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.android.quickstep.interaction;
+
+import android.view.View;
+
+import com.android.quickstep.interaction.BackGestureTutorialFragment.TutorialStep;
+
+import java.util.Optional;
+
+/**
+ * An implementation of {@link BackGestureTutorialController} that defines the behavior of the
+ * {@link TutorialStep#ENGAGED}.
+ */
+final class BackGestureTutorialEngagedController extends BackGestureTutorialController {
+
+ BackGestureTutorialEngagedController(
+ BackGestureTutorialFragment fragment, BackGestureTutorialTypeInfo tutorialTypeInfo) {
+ super(fragment, TutorialStep.ENGAGED, Optional.of(tutorialTypeInfo));
+ }
+
+ @Override
+ void transitToController() {
+ super.transitToController();
+ mHandCoachingAnimation.maybeStartLoopedAnimation(mTutorialTypeInfo.get().getTutorialType());
+ }
+
+ @Override
+ Optional getTitleStringId() {
+ return Optional.of(mTutorialTypeInfo.get().getTutorialPlaygroundTitleId());
+ }
+
+ @Override
+ Optional getSubtitleStringId() {
+ return Optional.of(mTutorialTypeInfo.get().getTutorialEngagedSubtitleId());
+ }
+
+ @Override
+ Optional getActionButtonStringId() {
+ return Optional.empty();
+ }
+
+ @Override
+ Optional getActionTextButtonStringId() {
+ return Optional.empty();
+ }
+
+ @Override
+ void onActionButtonClicked(View button) {
+ }
+}
diff --git a/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialFragment.java b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialFragment.java
new file mode 100644
index 0000000000..54408ceb6e
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialFragment.java
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2020 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.android.quickstep.interaction;
+
+import android.content.ActivityNotFoundException;
+import android.content.Intent;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.fragment.app.Fragment;
+
+import com.android.launcher3.R;
+
+import java.net.URISyntaxException;
+import java.util.Optional;
+
+/** Shows the Back gesture interactive tutorial. */
+public class BackGestureTutorialFragment extends Fragment {
+
+ private static final String LOG_TAG = "TutorialFragment";
+ private static final String KEY_TUTORIAL_STEP = "tutorialStep";
+ private static final String KEY_TUTORIAL_TYPE = "tutorialType";
+ private static final String SYSTEM_NAVIGATION_SETTING_INTENT =
+ "#Intent;action=com.android.settings.SEARCH_RESULT_TRAMPOLINE;S"
+ + ".:settings:fragment_args_key=gesture_system_navigation_input_summary;S"
+ + ".:settings:show_fragment=com.android.settings.gestures"
+ + ".SystemNavigationGestureSettings;end";
+
+ private TutorialStep mTutorialStep;
+ private TutorialType mTutorialType;
+ private Optional mTutorialController = Optional.empty();
+ private View mRootView;
+ private BackGestureTutorialHandAnimation mHandCoachingAnimation;
+
+ public static BackGestureTutorialFragment newInstance(
+ TutorialStep tutorialStep, TutorialType tutorialType) {
+ BackGestureTutorialFragment fragment = new BackGestureTutorialFragment();
+ Bundle args = new Bundle();
+ args.putSerializable(KEY_TUTORIAL_STEP, tutorialStep);
+ args.putSerializable(KEY_TUTORIAL_TYPE, tutorialType);
+ fragment.setArguments(args);
+ return fragment;
+ }
+
+ @Override
+ public void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ Bundle args = savedInstanceState != null ? savedInstanceState : getArguments();
+ mTutorialStep = (TutorialStep) args.getSerializable(KEY_TUTORIAL_STEP);
+ mTutorialType = (TutorialType) args.getSerializable(KEY_TUTORIAL_TYPE);
+ }
+
+ @Override
+ public View onCreateView(
+ LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+ super.onCreateView(inflater, container, savedInstanceState);
+
+ mRootView = inflater.inflate(R.layout.back_gesture_tutorial_fragment,
+ container, /* attachToRoot= */ false);
+ mRootView.findViewById(R.id.back_gesture_tutorial_fragment_close_button)
+ .setOnClickListener(this::onCloseButtonClicked);
+ mHandCoachingAnimation = new BackGestureTutorialHandAnimation(getContext(), mRootView);
+
+ return mRootView;
+ }
+
+ @Override
+ public void onResume() {
+ super.onResume();
+ changeController(mTutorialStep, mTutorialType);
+ }
+
+ @Override
+ public void onPause() {
+ super.onPause();
+ mHandCoachingAnimation.stop();
+ }
+
+ @Override
+ public void onSaveInstanceState(Bundle savedInstanceState) {
+ savedInstanceState.putSerializable(KEY_TUTORIAL_STEP, mTutorialStep);
+ savedInstanceState.putSerializable(KEY_TUTORIAL_TYPE, mTutorialType);
+ super.onSaveInstanceState(savedInstanceState);
+ }
+
+ View getRootView() {
+ return mRootView;
+ }
+
+ BackGestureTutorialHandAnimation getHandAnimation() {
+ return mHandCoachingAnimation;
+ }
+
+ void changeController(TutorialStep tutorialStep) {
+ changeController(tutorialStep, mTutorialType);
+ }
+
+ void changeController(TutorialStep tutorialStep, TutorialType tutorialType) {
+ Optional tutorialController =
+ BackGestureTutorialController.getTutorialController(/* fragment= */ this,
+ tutorialStep, tutorialType);
+ if (!tutorialController.isPresent()) {
+ return;
+ }
+
+ mTutorialController = tutorialController;
+ mTutorialController.get().transitToController();
+ this.mTutorialStep = mTutorialController.get().mTutorialStep;
+ this.mTutorialType = tutorialType;
+ }
+
+ void onBackPressed() {
+ if (mTutorialController.isPresent()) {
+ mTutorialController.get().onGestureDetected();
+ }
+ }
+
+ void closeTutorial() {
+ getActivity().finish();
+ }
+
+ void startSystemNavigationSetting() {
+ try {
+ startActivityForResult(
+ Intent.parseUri(SYSTEM_NAVIGATION_SETTING_INTENT, /* flags= */ 0),
+ /* requestCode= */ 0);
+ } catch (URISyntaxException e) {
+ Log.e(LOG_TAG, "The launch Intent Uri is wrong syntax: " + e);
+ } catch (ActivityNotFoundException e) {
+ Log.e(LOG_TAG, "The launch Activity not found: " + e);
+ }
+ }
+
+ private void onCloseButtonClicked(View button) {
+ closeTutorial();
+ }
+
+ /** Denotes the step of the tutorial. */
+ enum TutorialStep {
+ ENGAGED,
+ CONFIRM,
+ }
+
+ /** Denotes the type of the tutorial. */
+ enum TutorialType {
+ RIGHT_EDGE_BACK_NAVIGATION,
+ LEFT_EDGE_BACK_NAVIGATION,
+ }
+}
diff --git a/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialHandAnimation.java b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialHandAnimation.java
new file mode 100644
index 0000000000..d03811de55
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialHandAnimation.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2020 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.android.quickstep.interaction;
+
+import android.content.Context;
+import android.graphics.drawable.Animatable2;
+import android.graphics.drawable.AnimatedVectorDrawable;
+import android.graphics.drawable.Drawable;
+import android.view.View;
+import android.widget.ImageView;
+
+import androidx.core.content.ContextCompat;
+
+import com.android.launcher3.R;
+import com.android.quickstep.interaction.BackGestureTutorialFragment.TutorialType;
+
+import java.time.Duration;
+
+/** Hand coaching animation. */
+final class BackGestureTutorialHandAnimation {
+
+ // A delay for waiting the Activity fully launches.
+ private static final Duration ANIMATION_START_DELAY = Duration.ofMillis(300L);
+
+ private final ImageView mHandCoachingView;
+ private final AnimatedVectorDrawable mGestureAnimation;
+
+ private boolean mIsAnimationPlayed = false;
+
+ BackGestureTutorialHandAnimation(Context context, View rootView) {
+ mHandCoachingView = rootView.findViewById(
+ R.id.back_gesture_tutorial_fragment_hand_coaching);
+ mGestureAnimation = (AnimatedVectorDrawable) ContextCompat.getDrawable(context,
+ R.drawable.back_gesture);
+ }
+
+ boolean isRunning() {
+ return mGestureAnimation.isRunning();
+ }
+
+ /**
+ * Starts animation if the playground is launched for the first time.
+ */
+ void maybeStartLoopedAnimation(TutorialType tutorialType) {
+ if (isRunning() || mIsAnimationPlayed) {
+ return;
+ }
+
+ mIsAnimationPlayed = true;
+ clearAnimationCallbacks();
+ mGestureAnimation.registerAnimationCallback(
+ new Animatable2.AnimationCallback() {
+ @Override
+ public void onAnimationEnd(Drawable drawable) {
+ super.onAnimationEnd(drawable);
+ mGestureAnimation.start();
+ }
+ });
+ start(tutorialType);
+ }
+
+ private void start(TutorialType tutorialType) {
+ // Because the gesture animation has only the right side form.
+ // The left side form of the gesture animation is made from flipping the View.
+ float rotationY = tutorialType == TutorialType.LEFT_EDGE_BACK_NAVIGATION ? 180f : 0f;
+ mHandCoachingView.setRotationY(rotationY);
+ mHandCoachingView.setImageDrawable(mGestureAnimation);
+ mHandCoachingView.postDelayed(() -> mGestureAnimation.start(),
+ ANIMATION_START_DELAY.toMillis());
+ }
+
+ private void clearAnimationCallbacks() {
+ mGestureAnimation.clearAnimationCallbacks();
+ }
+
+ void stop() {
+ mIsAnimationPlayed = false;
+ clearAnimationCallbacks();
+ mGestureAnimation.stop();
+ }
+}
diff --git a/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialTypeInfo.java b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialTypeInfo.java
new file mode 100644
index 0000000000..ac8443d588
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialTypeInfo.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2020 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.android.quickstep.interaction;
+
+import com.android.quickstep.interaction.BackGestureTutorialFragment.TutorialType;
+
+/** Defines the UI element identifiers for the particular {@link TutorialType}. */
+final class BackGestureTutorialTypeInfo {
+
+ private final TutorialType mTutorialType;
+ private final int mTutorialPlaygroundTitleId;
+ private final int mTutorialEngagedSubtitleId;
+ private final int mTutorialConfirmTitleId;
+ private final int mTutorialConfirmSubtitleId;
+
+ TutorialType getTutorialType() {
+ return mTutorialType;
+ }
+
+ int getTutorialPlaygroundTitleId() {
+ return mTutorialPlaygroundTitleId;
+ }
+
+ int getTutorialEngagedSubtitleId() {
+ return mTutorialEngagedSubtitleId;
+ }
+
+ int getTutorialConfirmTitleId() {
+ return mTutorialConfirmTitleId;
+ }
+
+ int getTutorialConfirmSubtitleId() {
+ return mTutorialConfirmSubtitleId;
+ }
+
+ static Builder builder() {
+ return new Builder();
+ }
+
+ private BackGestureTutorialTypeInfo(
+ TutorialType tutorialType,
+ int tutorialPlaygroundTitleId,
+ int tutorialEngagedSubtitleId,
+ int tutorialConfirmTitleId,
+ int tutorialConfirmSubtitleId) {
+ mTutorialType = tutorialType;
+ mTutorialPlaygroundTitleId = tutorialPlaygroundTitleId;
+ mTutorialEngagedSubtitleId = tutorialEngagedSubtitleId;
+ mTutorialConfirmTitleId = tutorialConfirmTitleId;
+ mTutorialConfirmSubtitleId = tutorialConfirmSubtitleId;
+ }
+
+ /** Builder for producing {@link BackGestureTutorialTypeInfo} objects. */
+ static class Builder {
+
+ private TutorialType mTutorialType;
+ private Integer mTutorialPlaygroundTitleId;
+ private Integer mTutorialEngagedSubtitleId;
+ private Integer mTutorialConfirmTitleId;
+ private Integer mTutorialConfirmSubtitleId;
+
+ Builder setTutorialType(TutorialType tutorialType) {
+ mTutorialType = tutorialType;
+ return this;
+ }
+
+ Builder setTutorialPlaygroundTitleId(int stringId) {
+ mTutorialPlaygroundTitleId = stringId;
+ return this;
+ }
+
+ Builder setTutorialEngagedSubtitleId(int stringId) {
+ mTutorialEngagedSubtitleId = stringId;
+ return this;
+ }
+
+ Builder setTutorialConfirmTitleId(int stringId) {
+ mTutorialConfirmTitleId = stringId;
+ return this;
+ }
+
+ Builder setTutorialConfirmSubtitleId(int stringId) {
+ mTutorialConfirmSubtitleId = stringId;
+ return this;
+ }
+
+ BackGestureTutorialTypeInfo build() {
+ return new BackGestureTutorialTypeInfo(
+ mTutorialType,
+ mTutorialPlaygroundTitleId,
+ mTutorialEngagedSubtitleId,
+ mTutorialConfirmTitleId,
+ mTutorialConfirmSubtitleId);
+ }
+ }
+}
diff --git a/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialTypeInfoProvider.java b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialTypeInfoProvider.java
new file mode 100644
index 0000000000..9575d833a2
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/interaction/BackGestureTutorialTypeInfoProvider.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2020 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.android.quickstep.interaction;
+
+import com.android.launcher3.R;
+import com.android.quickstep.interaction.BackGestureTutorialFragment.TutorialType;
+
+/** Provides instances of {@link BackGestureTutorialTypeInfo} for each {@link TutorialType}. */
+final class BackGestureTutorialTypeInfoProvider {
+
+ private static final BackGestureTutorialTypeInfo RIGHT_EDGE_BACK_NAV_TUTORIAL_INFO =
+ BackGestureTutorialTypeInfo.builder()
+ .setTutorialType(TutorialType.RIGHT_EDGE_BACK_NAVIGATION)
+ .setTutorialPlaygroundTitleId(
+ R.string.back_gesture_tutorial_playground_title_swipe_inward_right_edge)
+ .setTutorialEngagedSubtitleId(
+ R.string.back_gesture_tutorial_engaged_subtitle_swipe_inward_right_edge)
+ .setTutorialConfirmTitleId(R.string.back_gesture_tutorial_confirm_title)
+ .setTutorialConfirmSubtitleId(R.string.back_gesture_tutorial_confirm_subtitle)
+ .build();
+
+ private static final BackGestureTutorialTypeInfo LEFT_EDGE_BACK_NAV_TUTORIAL_INFO =
+ BackGestureTutorialTypeInfo.builder()
+ .setTutorialType(TutorialType.LEFT_EDGE_BACK_NAVIGATION)
+ .setTutorialPlaygroundTitleId(
+ R.string.back_gesture_tutorial_playground_title_swipe_inward_left_edge)
+ .setTutorialEngagedSubtitleId(
+ R.string.back_gesture_tutorial_engaged_subtitle_swipe_inward_left_edge)
+ .setTutorialConfirmTitleId(R.string.back_gesture_tutorial_confirm_title)
+ .setTutorialConfirmSubtitleId(R.string.back_gesture_tutorial_confirm_subtitle)
+ .build();
+
+ static BackGestureTutorialTypeInfo getTutorialTypeInfo(TutorialType tutorialType) {
+ switch (tutorialType) {
+ case RIGHT_EDGE_BACK_NAVIGATION:
+ return RIGHT_EDGE_BACK_NAV_TUTORIAL_INFO;
+ case LEFT_EDGE_BACK_NAVIGATION:
+ return LEFT_EDGE_BACK_NAV_TUTORIAL_INFO;
+ default:
+ throw new AssertionError("Unexpected tutorial type: " + tutorialType);
+ }
+ }
+
+ private BackGestureTutorialTypeInfoProvider() {
+ }
+}