Highlight car nav facet when recent task changes.
CarStatusBar will now register a ITaskStackListener to handle changes in task stack and highlight the appropriate facet for the current task. Currently using resource defined package names and category to the filter for a given facet. OEMs are expected to use categories definied in Intent.java Also refactored business logic from CarNavigationBarView into CarNavigationBar controller. Change-Id: I203917ea43f2f488a1167f27dab84f1c451b3e93
This commit is contained in:
Victor Chan
27
packages/SystemUI/res/drawable/car_ic_arrow.xml
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27
packages/SystemUI/res/drawable/car_ic_arrow.xml
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@@ -0,0 +1,27 @@
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<!--
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~ Copyright (C) 2015 The Android Open Source Project
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~
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~ Licensed under the Apache License, Version 2.0 (the "License");
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~ you may not use this file except in compliance with the License.
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~ You may obtain a copy of the License at
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~
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~ http://www.apache.org/licenses/LICENSE-2.0
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~
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~ Unless required by applicable law or agreed to in writing, software
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~ distributed under the License is distributed on an "AS IS" BASIS,
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~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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~ See the License for the specific language governing permissions and
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~ limitations under the License
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-->
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<vector xmlns:android="http://schemas.android.com/apk/res/android"
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android:width="48.0dp"
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android:height="48.0dp"
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android:viewportWidth="48.0"
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android:viewportHeight="48.0">
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<path
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android:fillColor="#FFFFFFFF"
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android:pathData="M14.0,20.0l10.0,10.0 10.0,-10.0z"/>
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<path
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android:pathData="M0 0h48v48H0z"
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android:fillColor="#00000000"/>
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</vector>
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42
packages/SystemUI/res/layout/car_navigation_button.xml
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42
packages/SystemUI/res/layout/car_navigation_button.xml
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@@ -0,0 +1,42 @@
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<?xml version="1.0" encoding="utf-8"?>
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<!--
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**
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** Copyright 2016, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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-->
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<com.android.systemui.statusbar.car.CarNavigationButton
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xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_height="match_parent"
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android:layout_width="wrap_content"
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android:orientation="horizontal"
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android:gravity="center">
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<com.android.keyguard.AlphaOptimizedImageButton
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android:id="@+id/car_nav_button_icon"
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android:layout_height="match_parent"
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android:layout_width="wrap_content"
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android:layout_centerInParent="true"
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android:animateLayoutChanges="true">
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</com.android.keyguard.AlphaOptimizedImageButton>
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<com.android.keyguard.AlphaOptimizedImageButton
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android:id="@+id/car_nav_button_more_icon"
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android:layout_height="match_parent"
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android:layout_width="wrap_content"
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android:layout_centerVertical="true"
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android:layout_toRightOf="@+id/car_nav_button_icon"
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android:animateLayoutChanges="true">
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</com.android.keyguard.AlphaOptimizedImageButton>
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</com.android.systemui.statusbar.car.CarNavigationButton>
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@@ -22,7 +22,9 @@
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isn't a longpress action associated with a shortcut item, put in an empty item to make
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sure everything lines up.
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-->
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<array name="car_shortcut_icons" />
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<array name="car_shortcut_intent_uris" />
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<array name="car_shortcut_longpress_intent_uris" />
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<array name="car_facet_icons" />
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<array name="car_facet_intent_uris" />
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<array name="car_facet_longpress_intent_uris" />
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<array name="car_facet_package_filters"/>
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<array name="car_facet_category_filters"/>
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</resources>
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@@ -0,0 +1,275 @@
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/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.systemui.statusbar.car;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.content.pm.ResolveInfo;
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import android.content.res.Resources;
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import android.content.res.TypedArray;
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import android.graphics.drawable.Drawable;
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import android.support.v4.util.SimpleArrayMap;
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import android.view.View;
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import android.widget.LinearLayout;
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import com.android.systemui.R;
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import com.android.systemui.statusbar.phone.ActivityStarter;
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import java.net.URISyntaxException;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* A controller to populate data for CarNavigationBarView and handle user interactions.
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* <p/>
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* Each button inside the navigation bar is defined by data in arrays_car.xml. OEMs can customize
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* the navigation buttons by updating arrays_car.xml appropriately in an overlay.
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*/
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class CarNavigationBarController {
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// Each facet of the navigation bar maps to a set of package names or categories defined in
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// arrays_car.xml. Package names for a given facet are delimited by ";"
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private static final String FACET_FILTER_DEMILITER = ";";
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private Context mContext;
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private CarNavigationBarView mNavBar;
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private ActivityStarter mActivityStarter;
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// Set of categories each facet will filter on.
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private List<String[]> mFacetCategories = new ArrayList<String[]>();
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// Set of package names each facet will filter on.
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private List<String[]> mFacetPackages = new ArrayList<String[]>();
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private SimpleArrayMap<String, Integer> mFacetCategoryMap
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= new SimpleArrayMap<String, Integer>();
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private SimpleArrayMap<String, Integer> mFacetPackageMap
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= new SimpleArrayMap<String, Integer>();
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private List<Intent> mIntents = new ArrayList<Intent>();
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private List<Intent> mLongPressIntents = new ArrayList<Intent>();
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private List<CarNavigationButton> mNavButtons = new ArrayList<CarNavigationButton>();
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private int mCurrentFacetIndex;
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public CarNavigationBarController(Context context,
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CarNavigationBarView navBar,
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ActivityStarter activityStarter) {
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mContext = context;
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mNavBar = navBar;
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mActivityStarter = activityStarter;
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bind();
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}
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public void taskChanged(String packageName) {
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// If the package name belongs to a filter, then highlight appropriate button in
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// the navigation bar.
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if (mFacetPackageMap.containsKey(packageName)) {
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setCurrentFacet(mFacetPackageMap.get(packageName));
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}
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// Check if the package matches any of the categories for the facets
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String category = getPackageCategory(packageName);
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if (category != null) {
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setCurrentFacet(mFacetCategoryMap.get(category));
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}
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}
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private void bind() {
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// Read up arrays_car.xml and populate the navigation bar here.
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Resources r = mContext.getResources();
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TypedArray icons = r.obtainTypedArray(R.array.car_facet_icons);
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TypedArray intents = r.obtainTypedArray(R.array.car_facet_intent_uris);
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TypedArray longpressIntents =
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r.obtainTypedArray(R.array.car_facet_longpress_intent_uris);
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TypedArray facetPackageNames = r.obtainTypedArray(R.array.car_facet_package_filters);
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TypedArray facetCategories = r.obtainTypedArray(R.array.car_facet_category_filters);
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if (icons.length() != intents.length()
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|| icons.length() != longpressIntents.length()
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|| icons.length() != facetPackageNames.length()
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|| icons.length() != facetCategories.length()) {
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throw new RuntimeException("car_facet array lengths do not match");
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}
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for (int i = 0; i < icons.length(); i++) {
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Drawable icon = icons.getDrawable(i);
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try {
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mIntents.add(i,
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Intent.parseUri(intents.getString(i), Intent.URI_INTENT_SCHEME));
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String longpressUri = longpressIntents.getString(i);
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boolean hasLongpress = !longpressUri.isEmpty();
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if (hasLongpress) {
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mLongPressIntents.add(i,
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Intent.parseUri(longpressUri, Intent.URI_INTENT_SCHEME));
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}
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CarNavigationButton button = createNavButton(icon, i, hasLongpress);
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mNavButtons.add(button);
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mNavBar.addButton(button, createNavButton(icon, i, hasLongpress));
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initFacetFilterMaps(i,
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facetPackageNames.getString(i).split(FACET_FILTER_DEMILITER),
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facetCategories.getString(i).split(FACET_FILTER_DEMILITER));
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} catch (URISyntaxException e) {
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throw new RuntimeException("Malformed intent uri", e);
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}
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}
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}
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private void initFacetFilterMaps(int id, String[] packageNames, String[] categories){
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mFacetCategories.add(categories);
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for (int i = 0; i < categories.length; i++) {
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mFacetCategoryMap.put(categories[i], id);
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}
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mFacetPackages.add(packageNames);
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for (int i = 0; i < packageNames.length; i++) {
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mFacetPackageMap.put(packageNames[i], id);
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}
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}
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private String getPackageCategory(String packageName) {
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PackageManager pm = mContext.getPackageManager();
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int size = mFacetCategories.size();
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// For each facet, check if the given package name matches one of its categories
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for (int i = 0; i < size; i++) {
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String[] categories = mFacetCategories.get(i);
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for (int j = 0; j < categories.length; j++) {
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String category = categories[j];
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Intent intent = new Intent();
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intent.setPackage(packageName);
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intent.setAction(Intent.ACTION_MAIN);
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intent.addCategory(category);
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List<ResolveInfo> list = pm.queryIntentActivities(intent, 0);
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if (list.size() > 0) {
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// Cache this package name into facetPackageMap, so we won't have to query
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// all categories next time this package name shows up.
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mFacetPackageMap.put(packageName, mFacetCategoryMap.get(category));
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return category;
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}
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}
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}
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return null;
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}
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/**
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* Helper method to check if a given facet has multiple packages associated with it.
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* This can be resource defined package names or package names filtered by facet category.
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*/
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private boolean facetHasMultiplePackages(int index) {
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PackageManager pm = mContext.getPackageManager();
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// Check if the packages defined for the filter actually exists on the device
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String[] packages = mFacetPackages.get(index);
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if (packages.length > 1) {
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int count = 0;
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for (int i = 0; i < packages.length; i++) {
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count += pm.getLaunchIntentForPackage(packages[i]) != null ? 1 : 0;
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if (count > 1) {
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return true;
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}
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}
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}
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// If there weren't multiple packages defined for the facet, check the categories
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// and see if they resolve to multiple package names
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String categories[] = mFacetCategories.get(index);
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int count = 0;
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for (int i = 0; i < categories.length; i++) {
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String category = categories[i];
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Intent intent = new Intent();
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intent.setAction(Intent.ACTION_MAIN);
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intent.addCategory(category);
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count += pm.queryIntentActivities(intent, 0).size();
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if (count > 1) {
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return true;
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}
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}
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return false;
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}
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private void setCurrentFacet(int index) {
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if (index == mCurrentFacetIndex) {
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return;
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}
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if (mNavButtons.get(mCurrentFacetIndex) != null) {
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mNavButtons.get(mCurrentFacetIndex)
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.setSelected(false /* selected */, false /* showMoreIcon */);
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}
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if (mNavButtons.get(index) != null) {
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mNavButtons.get(index).setSelected(true /* selected */,
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facetHasMultiplePackages(index) /* showMoreIcon */);
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}
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mCurrentFacetIndex = index;
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}
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private CarNavigationButton createNavButton(Drawable icon, final int id,
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boolean longClickEnabled) {
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CarNavigationButton button = (CarNavigationButton) View.inflate(mContext,
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R.layout.car_navigation_button, null);
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button.setResources(icon);
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LinearLayout.LayoutParams lp =
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new LinearLayout.LayoutParams(0, LinearLayout.LayoutParams.MATCH_PARENT, 1);
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button.setLayoutParams(lp);
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button.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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setCurrentFacet(id);
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onFacetClicked(id);
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}
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});
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if (longClickEnabled) {
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button.setLongClickable(true);
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button.setOnLongClickListener(new View.OnLongClickListener() {
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@Override
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public boolean onLongClick(View v) {
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onFacetLongClicked(id);
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setCurrentFacet(id);
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return true;
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}
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});
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} else {
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button.setLongClickable(false);
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}
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return button;
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}
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private void startActivity(Intent intent) {
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if (mActivityStarter != null && intent != null) {
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mActivityStarter.startActivity(intent, true);
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}
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}
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private void onFacetClicked(int index) {
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// TODO: determine what data to pass to the trampoline, so it can start
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// the default app or the lens picker.
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startActivity(mIntents.get(index));
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}
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private void onFacetLongClicked(int index) {
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// TODO: determine what data to pass to the trampoline, so it can start
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// the default app or the lens picker.
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startActivity(mLongPressIntents.get(index));
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}
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}
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@@ -17,36 +17,29 @@
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package com.android.systemui.statusbar.car;
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import android.content.Context;
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import android.content.Intent;
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import android.content.res.Resources;
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import android.content.res.TypedArray;
|
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import android.graphics.drawable.Drawable;
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import android.R.color;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.view.View;
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import android.widget.ImageButton;
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import android.widget.ImageView.ScaleType;
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import android.widget.LinearLayout;
|
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import com.android.systemui.R;
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import com.android.systemui.statusbar.phone.ActivityStarter;
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import com.android.systemui.statusbar.phone.NavigationBarView;
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import com.android.systemui.statusbar.phone.NavigationBarGestureHelper;
|
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import com.android.systemui.statusbar.policy.KeyButtonView;
|
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|
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import java.net.URISyntaxException;
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import java.util.ArrayList;
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import java.util.HashMap;
|
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|
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/**
|
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* A custom navigation bar for the automotive use case.
|
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* <p>
|
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* The navigation bar in the automotive use case is more like a list of shortcuts, which we
|
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* expect to be customizable by the car OEMs. This implementation populates the nav_buttons layout
|
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* from resources rather than the layout file so customization would then mean updating
|
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* arrays_car.xml appropriately in an overlay.
|
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* The navigation bar in the automotive use case is more like a list of shortcuts, rendered
|
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* in a linear layout.
|
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*/
|
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class CarNavigationBarView extends NavigationBarView {
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private ActivityStarter mActivityStarter;
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private LinearLayout mNavButtons;
|
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private LinearLayout mLightsOutButtons;
|
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|
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public CarNavigationBarView(Context context, AttributeSet attrs) {
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super(context, attrs);
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@@ -54,83 +47,13 @@ class CarNavigationBarView extends NavigationBarView {
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|
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@Override
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public void onFinishInflate() {
|
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// Read up arrays_car.xml and populate the navigation bar here.
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Context context = getContext();
|
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Resources r = getContext().getResources();
|
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TypedArray icons = r.obtainTypedArray(R.array.car_shortcut_icons);
|
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TypedArray intents = r.obtainTypedArray(R.array.car_shortcut_intent_uris);
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TypedArray longpressIntents =
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r.obtainTypedArray(R.array.car_shortcut_longpress_intent_uris);
|
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|
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if (icons.length() != intents.length()) {
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throw new RuntimeException("car_shortcut_icons and car_shortcut_intents do not match");
|
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}
|
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|
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LinearLayout navButtons = (LinearLayout) findViewById(R.id.nav_buttons);
|
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LinearLayout lightsOut = (LinearLayout) findViewById(R.id.lights_out);
|
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|
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for (int i = 0; i < icons.length(); i++) {
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Drawable icon = icons.getDrawable(i);
|
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|
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try {
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Intent intent = Intent.parseUri(intents.getString(i), Intent.URI_INTENT_SCHEME);
|
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Intent longpress = null;
|
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String longpressUri = longpressIntents.getString(i);
|
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if (!longpressUri.isEmpty()) {
|
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longpress = Intent.parseUri(longpressUri, Intent.URI_INTENT_SCHEME);
|
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}
|
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|
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// nav_buttons and lights_out should match exactly.
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navButtons.addView(makeButton(context, icon, intent, longpress));
|
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lightsOut.addView(makeButton(context, icon, intent, longpress));
|
||||
} catch (URISyntaxException e) {
|
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throw new RuntimeException("Malformed intent uri", e);
|
||||
}
|
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}
|
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mNavButtons = (LinearLayout) findViewById(R.id.nav_buttons);
|
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mLightsOutButtons = (LinearLayout) findViewById(R.id.lights_out);
|
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}
|
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|
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private ImageButton makeButton(Context context, Drawable icon,
|
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final Intent intent, final Intent longpress) {
|
||||
ImageButton button = new ImageButton(context);
|
||||
|
||||
button.setImageDrawable(icon);
|
||||
button.setScaleType(ScaleType.CENTER);
|
||||
button.setBackgroundColor(color.transparent);
|
||||
LinearLayout.LayoutParams lp =
|
||||
new LinearLayout.LayoutParams(0, LayoutParams.MATCH_PARENT, 1);
|
||||
button.setLayoutParams(lp);
|
||||
|
||||
button.setOnClickListener(new OnClickListener() {
|
||||
@Override
|
||||
public void onClick(View v) {
|
||||
if (mActivityStarter != null) {
|
||||
mActivityStarter.startActivity(intent, true);
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
// Long click handlers are optional.
|
||||
if (longpress != null) {
|
||||
button.setLongClickable(true);
|
||||
button.setOnLongClickListener(new OnLongClickListener() {
|
||||
@Override
|
||||
public boolean onLongClick(View v) {
|
||||
if (mActivityStarter != null) {
|
||||
mActivityStarter.startActivity(longpress, true);
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
});
|
||||
} else {
|
||||
button.setLongClickable(false);
|
||||
}
|
||||
|
||||
return button;
|
||||
}
|
||||
|
||||
public void setActivityStarter(ActivityStarter activityStarter) {
|
||||
mActivityStarter = activityStarter;
|
||||
public void addButton(CarNavigationButton button, CarNavigationButton lightsOutButton){
|
||||
mNavButtons.addView(button);
|
||||
mLightsOutButtons.addView(lightsOutButton);
|
||||
}
|
||||
|
||||
@Override
|
||||
|
||||
@@ -0,0 +1,73 @@
|
||||
/*
|
||||
* Copyright (C) 2015 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.systemui.statusbar.car;
|
||||
|
||||
import android.content.Context;
|
||||
import android.graphics.drawable.Drawable;
|
||||
import android.util.AttributeSet;
|
||||
import android.widget.ImageButton;
|
||||
import android.widget.ImageView;
|
||||
import android.widget.RelativeLayout;
|
||||
import com.android.keyguard.AlphaOptimizedImageButton;
|
||||
import com.android.systemui.R;
|
||||
|
||||
/**
|
||||
* A wrapper view for a car navigation facet, which includes a button icon and a drop down icon.
|
||||
*/
|
||||
public class CarNavigationButton extends RelativeLayout {
|
||||
private static final float SELECTED_ALPHA = 1;
|
||||
private static final float UNSELECTED_ALPHA = 0.7f;
|
||||
|
||||
private AlphaOptimizedImageButton mIcon;
|
||||
private AlphaOptimizedImageButton mMoreIcon;
|
||||
|
||||
public CarNavigationButton(Context context, AttributeSet attrs) {
|
||||
super(context, attrs);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onFinishInflate() {
|
||||
super.onFinishInflate();
|
||||
mIcon = (AlphaOptimizedImageButton) findViewById(R.id.car_nav_button_icon);
|
||||
mIcon.setClickable(false);
|
||||
mIcon.setScaleType(ImageView.ScaleType.CENTER);
|
||||
mIcon.setBackgroundColor(android.R.color.transparent);
|
||||
mIcon.setAlpha(UNSELECTED_ALPHA);
|
||||
|
||||
mMoreIcon = (AlphaOptimizedImageButton) findViewById(R.id.car_nav_button_more_icon);
|
||||
mMoreIcon.setClickable(false);
|
||||
mMoreIcon.setScaleType(ImageView.ScaleType.CENTER);
|
||||
mMoreIcon.setBackgroundColor(android.R.color.transparent);
|
||||
mMoreIcon.setVisibility(INVISIBLE);
|
||||
mMoreIcon.setImageDrawable(getContext().getDrawable(R.drawable.car_ic_arrow));
|
||||
mMoreIcon.setAlpha(UNSELECTED_ALPHA);
|
||||
}
|
||||
|
||||
public void setResources(Drawable icon) {
|
||||
mIcon.setImageDrawable(icon);
|
||||
}
|
||||
|
||||
public void setSelected(boolean selected, boolean showMoreIcon) {
|
||||
if (selected) {
|
||||
mMoreIcon.setVisibility(showMoreIcon ? VISIBLE : INVISIBLE);
|
||||
mMoreIcon.setAlpha(SELECTED_ALPHA);
|
||||
mIcon.setAlpha(SELECTED_ALPHA);
|
||||
} else {
|
||||
mMoreIcon.setVisibility(INVISIBLE);
|
||||
mIcon.setAlpha(UNSELECTED_ALPHA);
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -16,30 +16,52 @@
|
||||
|
||||
package com.android.systemui.statusbar.car;
|
||||
|
||||
import android.app.ActivityManager;
|
||||
import android.app.ITaskStackListener;
|
||||
import android.content.Context;
|
||||
import android.graphics.PixelFormat;
|
||||
import android.os.Handler;
|
||||
import android.os.Looper;
|
||||
import android.view.View;
|
||||
import android.view.ViewGroup.LayoutParams;
|
||||
import android.view.WindowManager;
|
||||
|
||||
import com.android.systemui.R;
|
||||
import com.android.systemui.recents.Recents;
|
||||
import com.android.systemui.recents.misc.SystemServicesProxy;
|
||||
import com.android.systemui.statusbar.phone.PhoneStatusBar;
|
||||
|
||||
/**
|
||||
* A status bar (and navigation bar) tailored for the automotive use case.
|
||||
*/
|
||||
public class CarStatusBar extends PhoneStatusBar {
|
||||
private SystemServicesProxy mSystemServicesProxy;
|
||||
private TaskStackListenerImpl mTaskStackListener;
|
||||
private Handler mHandler;
|
||||
|
||||
private CarNavigationBarView mCarNavigationBar;
|
||||
private CarNavigationBarController mController;
|
||||
|
||||
@Override
|
||||
public void start() {
|
||||
super.start();
|
||||
mHandler = new Handler();
|
||||
mTaskStackListener = new TaskStackListenerImpl(mHandler);
|
||||
mSystemServicesProxy = new SystemServicesProxy(mContext);
|
||||
mSystemServicesProxy.registerTaskStackListener(mTaskStackListener);
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void addNavigationBar() {
|
||||
WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
|
||||
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT,
|
||||
WindowManager.LayoutParams.TYPE_NAVIGATION_BAR,
|
||||
WindowManager.LayoutParams.FLAG_TOUCHABLE_WHEN_WAKING
|
||||
| WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
|
||||
| WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
|
||||
| WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH
|
||||
| WindowManager.LayoutParams.FLAG_SPLIT_TOUCH
|
||||
| WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED,
|
||||
WindowManager.LayoutParams.FLAG_TOUCHABLE_WHEN_WAKING
|
||||
| WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
|
||||
| WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
|
||||
| WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH
|
||||
| WindowManager.LayoutParams.FLAG_SPLIT_TOUCH
|
||||
| WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED,
|
||||
PixelFormat.TRANSLUCENT);
|
||||
lp.setTitle("CarNavigationBar");
|
||||
lp.windowAnimations = 0;
|
||||
@@ -51,11 +73,11 @@ public class CarStatusBar extends PhoneStatusBar {
|
||||
if (mNavigationBarView != null) {
|
||||
return;
|
||||
}
|
||||
|
||||
CarNavigationBarView carNavBar =
|
||||
mCarNavigationBar =
|
||||
(CarNavigationBarView) View.inflate(context, R.layout.car_navigation_bar, null);
|
||||
carNavBar.setActivityStarter(this);
|
||||
mNavigationBarView = carNavBar;
|
||||
mController = new CarNavigationBarController(context, mCarNavigationBar,
|
||||
this /* ActivityStarter*/);
|
||||
mNavigationBarView = mCarNavigationBar;
|
||||
}
|
||||
|
||||
@Override
|
||||
@@ -63,4 +85,40 @@ public class CarStatusBar extends PhoneStatusBar {
|
||||
// The navigation bar for a vehicle will not need to be repositioned, as it is always
|
||||
// set at the bottom.
|
||||
}
|
||||
|
||||
/**
|
||||
* An implementation of ITaskStackListener, that listens for changes in the system task
|
||||
* stack and notifies the navigation bar.
|
||||
*/
|
||||
private class TaskStackListenerImpl extends ITaskStackListener.Stub implements Runnable {
|
||||
private Handler mHandler;
|
||||
|
||||
public TaskStackListenerImpl(Handler handler) {
|
||||
this.mHandler = handler;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onActivityPinned() {
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onTaskStackChanged() {
|
||||
mHandler.removeCallbacks(this);
|
||||
mHandler.post(this);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void run() {
|
||||
ensureMainThread();
|
||||
SystemServicesProxy ssp = Recents.getSystemServices();
|
||||
ActivityManager.RunningTaskInfo runningTaskInfo = ssp.getTopMostTask();
|
||||
mController.taskChanged(runningTaskInfo.baseActivity.getPackageName());
|
||||
}
|
||||
|
||||
private void ensureMainThread() {
|
||||
if (!Looper.getMainLooper().isCurrentThread()) {
|
||||
throw new RuntimeException("Must be called on the UI thread");
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user