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https://github.com/LawnchairLauncher/lawnchair.git
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Subclassing Launcher instead of using UiFactory
Allows us to override only the required methods, instead of providing a proxy method for everything Change-Id: I816dcdb2a8d5432496050118ded0f2bbe7122cf7
This commit is contained in:
Sunny Goyal
254
quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
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254
quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
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/*
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* Copyright (C) 2019 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.launcher3;
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import static com.android.launcher3.AbstractFloatingView.TYPE_ALL;
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import static com.android.launcher3.AbstractFloatingView.TYPE_HIDE_BACK_BUTTON;
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import static com.android.launcher3.LauncherState.ALL_APPS;
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import static com.android.launcher3.LauncherState.NORMAL;
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import static com.android.launcher3.LauncherState.OVERVIEW;
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import static com.android.launcher3.allapps.DiscoveryBounce.BOUNCE_MAX_COUNT;
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import static com.android.launcher3.allapps.DiscoveryBounce.HOME_BOUNCE_COUNT;
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import static com.android.launcher3.allapps.DiscoveryBounce.HOME_BOUNCE_SEEN;
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import static com.android.launcher3.allapps.DiscoveryBounce.SHELF_BOUNCE_COUNT;
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import static com.android.launcher3.allapps.DiscoveryBounce.SHELF_BOUNCE_SEEN;
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import android.animation.AnimatorSet;
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import android.animation.ValueAnimator;
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import android.content.Intent;
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import android.content.IntentSender;
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import android.os.Bundle;
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import android.os.CancellationSignal;
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import com.android.launcher3.LauncherState.ScaleAndTranslation;
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import com.android.launcher3.LauncherStateManager.StateHandler;
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import com.android.launcher3.proxy.ProxyActivityStarter;
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import com.android.launcher3.proxy.StartActivityParams;
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import com.android.launcher3.uioverrides.BackButtonAlphaHandler;
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import com.android.launcher3.uioverrides.RecentsViewStateController;
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import com.android.launcher3.util.UiThreadHelper;
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import com.android.quickstep.RecentsModel;
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import com.android.quickstep.SysUINavigationMode;
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import com.android.quickstep.SysUINavigationMode.Mode;
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import com.android.quickstep.SysUINavigationMode.NavigationModeChangeListener;
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import com.android.quickstep.SystemUiProxy;
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import com.android.quickstep.util.RemoteFadeOutAnimationListener;
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/**
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* Extension of Launcher activity to provide quickstep specific functionality
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*/
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public abstract class BaseQuickstepLauncher extends Launcher
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implements NavigationModeChangeListener {
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/**
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* Reusable command for applying the back button alpha on the background thread.
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*/
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public static final UiThreadHelper.AsyncCommand SET_BACK_BUTTON_ALPHA =
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(context, arg1, arg2) -> SystemUiProxy.INSTANCE.get(context).setBackButtonAlpha(
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Float.intBitsToFloat(arg1), arg2 != 0);
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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SysUINavigationMode.Mode mode = SysUINavigationMode.INSTANCE.get(this)
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.addModeChangeListener(this);
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getRotationHelper().setRotationHadDifferentUI(mode != Mode.NO_BUTTON);
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if (!getSharedPrefs().getBoolean(HOME_BOUNCE_SEEN, false)) {
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getStateManager().addStateListener(new LauncherStateManager.StateListener() {
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@Override
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public void onStateTransitionStart(LauncherState toState) { }
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@Override
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public void onStateTransitionComplete(LauncherState finalState) {
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boolean swipeUpEnabled = SysUINavigationMode.INSTANCE
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.get(BaseQuickstepLauncher.this).getMode().hasGestures;
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LauncherState prevState = getStateManager().getLastState();
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if (((swipeUpEnabled && finalState == OVERVIEW) || (!swipeUpEnabled
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&& finalState == ALL_APPS && prevState == NORMAL) || BOUNCE_MAX_COUNT
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<= getSharedPrefs().getInt(HOME_BOUNCE_COUNT, 0))) {
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getSharedPrefs().edit().putBoolean(HOME_BOUNCE_SEEN, true).apply();
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getStateManager().removeStateListener(this);
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}
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}
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});
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}
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if (!getSharedPrefs().getBoolean(SHELF_BOUNCE_SEEN, false)) {
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getStateManager().addStateListener(new LauncherStateManager.StateListener() {
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@Override
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public void onStateTransitionStart(LauncherState toState) { }
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@Override
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public void onStateTransitionComplete(LauncherState finalState) {
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LauncherState prevState = getStateManager().getLastState();
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if ((finalState == ALL_APPS && prevState == OVERVIEW) || BOUNCE_MAX_COUNT
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<= getSharedPrefs().getInt(SHELF_BOUNCE_COUNT, 0)) {
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getSharedPrefs().edit().putBoolean(SHELF_BOUNCE_SEEN, true).apply();
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getStateManager().removeStateListener(this);
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}
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}
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});
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}
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}
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@Override
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public void onDestroy() {
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SysUINavigationMode.INSTANCE.get(this).removeModeChangeListener(this);
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super.onDestroy();
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}
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@Override
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public void onNavigationModeChanged(Mode newMode) {
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getDragLayer().recreateControllers();
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getRotationHelper().setRotationHadDifferentUI(newMode != Mode.NO_BUTTON);
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}
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@Override
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public void onEnterAnimationComplete() {
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super.onEnterAnimationComplete();
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// After the transition to home, enable the high-res thumbnail loader if it wasn't enabled
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// as a part of quickstep, so that high-res thumbnails can load the next time we enter
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// overview
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RecentsModel.INSTANCE.get(this).getThumbnailCache()
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.getHighResLoadingState().setVisible(true);
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}
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@Override
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public void onTrimMemory(int level) {
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super.onTrimMemory(level);
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RecentsModel.INSTANCE.get(this).onTrimMemory(level);
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}
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@Override
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public void startIntentSenderForResult(IntentSender intent, int requestCode,
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Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags, Bundle options) {
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if (requestCode != -1) {
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mPendingActivityRequestCode = requestCode;
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StartActivityParams params = new StartActivityParams(this, requestCode);
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params.intentSender = intent;
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params.fillInIntent = fillInIntent;
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params.flagsMask = flagsMask;
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params.flagsValues = flagsValues;
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params.extraFlags = extraFlags;
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params.options = options;
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startActivity(ProxyActivityStarter.getLaunchIntent(this, params));
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} else {
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super.startIntentSenderForResult(intent, requestCode, fillInIntent, flagsMask,
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flagsValues, extraFlags, options);
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}
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}
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@Override
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public void startActivityForResult(Intent intent, int requestCode, Bundle options) {
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if (requestCode != -1) {
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mPendingActivityRequestCode = -1;
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StartActivityParams params = new StartActivityParams(this, requestCode);
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params.intent = intent;
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params.options = options;
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startActivity(ProxyActivityStarter.getLaunchIntent(this, params));
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} else {
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super.startActivityForResult(intent, requestCode, options);
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}
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}
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@Override
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protected void onDeferredResumed() {
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if (mPendingActivityRequestCode != -1 && isInState(NORMAL)) {
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// Remove any active ProxyActivityStarter task and send RESULT_CANCELED to Launcher.
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onActivityResult(mPendingActivityRequestCode, RESULT_CANCELED, null);
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// ProxyActivityStarter is started with clear task to reset the task after which it
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// removes the task itself.
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startActivity(ProxyActivityStarter.getLaunchIntent(this, null));
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}
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}
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@Override
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protected StateHandler[] createStateHandlers() {
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return new StateHandler[] {
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getAllAppsController(),
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getWorkspace(),
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new RecentsViewStateController(this),
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new BackButtonAlphaHandler(this)};
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}
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@Override
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protected ScaleAndTranslation getOverviewScaleAndTranslationForNormalState() {
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if (SysUINavigationMode.getMode(this) == Mode.NO_BUTTON) {
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float offscreenTranslationX = getDeviceProfile().widthPx
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- getOverviewPanel().getPaddingStart();
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return new ScaleAndTranslation(1f, offscreenTranslationX, 0f);
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}
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return super.getOverviewScaleAndTranslationForNormalState();
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}
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@Override
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public void useFadeOutAnimationForLauncherStart(CancellationSignal signal) {
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QuickstepAppTransitionManagerImpl appTransitionManager =
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(QuickstepAppTransitionManagerImpl) getAppTransitionManager();
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appTransitionManager.setRemoteAnimationProvider((appTargets, wallpaperTargets) -> {
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// On the first call clear the reference.
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signal.cancel();
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ValueAnimator fadeAnimation = ValueAnimator.ofFloat(1, 0);
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fadeAnimation.addUpdateListener(new RemoteFadeOutAnimationListener(appTargets,
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wallpaperTargets));
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AnimatorSet anim = new AnimatorSet();
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anim.play(fadeAnimation);
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return anim;
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}, signal);
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}
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@Override
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public void onDragLayerHierarchyChanged() {
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onLauncherStateOrFocusChanged();
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}
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@Override
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protected void onActivityFlagsChanged(int changeBits) {
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if ((changeBits
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& (ACTIVITY_STATE_WINDOW_FOCUSED | ACTIVITY_STATE_TRANSITION_ACTIVE)) != 0) {
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onLauncherStateOrFocusChanged();
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}
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super.onActivityFlagsChanged(changeBits);
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}
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/**
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* Sets the back button visibility based on the current state/window focus.
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*/
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private void onLauncherStateOrFocusChanged() {
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Mode mode = SysUINavigationMode.getMode(this);
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boolean shouldBackButtonBeHidden = mode.hasGestures
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&& getStateManager().getState().hideBackButton
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&& hasWindowFocus()
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&& (getActivityFlags() & ACTIVITY_STATE_TRANSITION_ACTIVE) == 0;
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if (shouldBackButtonBeHidden) {
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// Show the back button if there is a floating view visible.
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shouldBackButtonBeHidden = AbstractFloatingView.getTopOpenViewWithType(this,
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TYPE_ALL & ~TYPE_HIDE_BACK_BUTTON) == null;
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}
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UiThreadHelper.setBackButtonAlphaAsync(this, SET_BACK_BUTTON_ALPHA,
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shouldBackButtonBeHidden ? 0f : 1f, true /* animate */);
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if (getDragLayer() != null) {
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getRootView().setDisallowBackGesture(shouldBackButtonBeHidden);
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}
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}
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}
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