Using a proxy activity for startActivityForResult

This ensures that the home task is never blocked by a different task

Bug: 74500048
Change-Id: I01fd26f1d6242e39b2d8fabac5e064b748aebe62

quickstep/src/com/android/launcher3/proxy/StartActivityParams.java

@@ -0,0 +1,103 @@
+/*
+ * 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.launcher3.proxy;
+
+import android.app.Activity;
+import android.app.PendingIntent;
+import android.app.PendingIntent.CanceledException;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentSender;
+import android.os.Bundle;
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.util.Log;
+
+public class StartActivityParams implements Parcelable {
+
+    private static final String TAG = "StartActivityParams";
+
+    private final PendingIntent mCallback;
+    public final int requestCode;
+
+    public Intent intent;
+
+    public IntentSender intentSender;
+    public Intent fillInIntent;
+    public int flagsMask;
+    public int flagsValues;
+    public int extraFlags;
+    public Bundle options;
+
+    public StartActivityParams(Activity activity, int requestCode) {
+        mCallback = activity.createPendingResult(requestCode, new Intent(),
+                PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT);
+        this.requestCode = requestCode;
+    }
+
+    private StartActivityParams(Parcel parcel) {
+        mCallback = parcel.readTypedObject(PendingIntent.CREATOR);
+        requestCode = parcel.readInt();
+        intent = parcel.readTypedObject(Intent.CREATOR);
+
+        intentSender = parcel.readTypedObject(IntentSender.CREATOR);
+        fillInIntent = parcel.readTypedObject(Intent.CREATOR);
+        flagsMask = parcel.readInt();
+        flagsValues = parcel.readInt();
+        extraFlags = parcel.readInt();
+        options = parcel.readBundle();
+    }
+
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel parcel, int flags) {
+        parcel.writeTypedObject(mCallback, flags);
+        parcel.writeInt(requestCode);
+        parcel.writeTypedObject(intent, flags);
+
+        parcel.writeTypedObject(intentSender, flags);
+        parcel.writeTypedObject(fillInIntent, flags);
+        parcel.writeInt(flagsMask);
+        parcel.writeInt(flagsValues);
+        parcel.writeInt(extraFlags);
+        parcel.writeBundle(options);
+    }
+
+    public void deliverResult(Context context, int resultCode, Intent data) {
+        try {
+            mCallback.send(context, resultCode, data);
+        } catch (CanceledException e) {
+            Log.e(TAG, "Unable to send back result", e);
+        }
+    }
+
+    public static final Parcelable.Creator<StartActivityParams> CREATOR =
+            new Parcelable.Creator<StartActivityParams>() {
+                public StartActivityParams createFromParcel(Parcel source) {
+                    return new StartActivityParams(source);
+                }
+
+                public StartActivityParams[] newArray(int size) {
+                    return new StartActivityParams[size];
+                }
+            };
+}