| /* |
| * Copyright (C) 2019 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.util; |
| |
| import android.content.Context; |
| import android.content.Intent; |
| import android.os.Bundle; |
| import android.os.Handler; |
| |
| import com.android.launcher3.BaseActivity; |
| import com.android.launcher3.util.ActivityTracker; |
| import com.android.launcher3.util.ActivityTracker.SchedulerCallback; |
| |
| import java.util.function.BiPredicate; |
| |
| public class ActivityInitListener<T extends BaseActivity> implements SchedulerCallback<T> { |
| |
| private final BiPredicate<T, Boolean> mOnInitListener; |
| private final ActivityTracker<T> mActivityTracker; |
| |
| private boolean mIsRegistered = false; |
| |
| /** |
| * @param onInitListener a callback made when the activity is initialized. The callback should |
| * return true to continue receiving callbacks (ie. for if the activity is |
| * recreated). |
| */ |
| public ActivityInitListener(BiPredicate<T, Boolean> onInitListener, |
| ActivityTracker<T> tracker) { |
| mOnInitListener = onInitListener; |
| mActivityTracker = tracker; |
| } |
| |
| @Override |
| public final boolean init(T activity, boolean alreadyOnHome) { |
| if (!mIsRegistered) { |
| return false; |
| } |
| return handleInit(activity, alreadyOnHome); |
| } |
| |
| protected boolean handleInit(T activity, boolean alreadyOnHome) { |
| return mOnInitListener.test(activity, alreadyOnHome); |
| } |
| |
| /** |
| * Registers the activity-created listener. If the activity is already created, then the |
| * callback provided in the constructor will be called synchronously. |
| * @param intent The intent that will be used to initialize the activity, if the activity |
| * doesn't already exist. We add the callback as an extra on this intent. |
| */ |
| public void register(Intent intent) { |
| mIsRegistered = true; |
| mActivityTracker.runCallbackWhenActivityExists(this, intent); |
| } |
| |
| /** |
| * After calling this, we won't {@link #init} even when the activity is ready. |
| */ |
| public void unregister() { |
| mIsRegistered = false; |
| } |
| |
| /** |
| * Starts the given intent with the provided animation. Unlike {@link #register(Intent)}, this |
| * method will not call {@link #init} if the activity already exists, it will only call it when |
| * we get handleIntent() for the provided intent that we're starting. |
| */ |
| public void registerAndStartActivity(Intent intent, RemoteAnimationProvider animProvider, |
| Context context, Handler handler, long duration) { |
| mIsRegistered = true; |
| |
| Bundle options = animProvider.toActivityOptions(handler, duration, context).toBundle(); |
| context.startActivity(addToIntent(new Intent(intent)), options); |
| } |
| } |