shell/platform/android/io/flutter/app/FlutterApplication.java

// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

package io.flutter.app;

import android.app.Activity;
import android.app.Application;
import android.support.annotation.CallSuper;

import io.flutter.view.FlutterMain;

/**
 * Flutter implementation of {@link android.app.Application}, managing
 * application-level global initializations.
 */
public class FlutterApplication extends Application {
    @Override
    @CallSuper
    public void onCreate() {
        super.onCreate();
        FlutterMain.startInitialization(this);
    }

    private Activity mCurrentActivity = null;
    public Activity getCurrentActivity() {
        return mCurrentActivity;
    }
    public void setCurrentActivity(Activity mCurrentActivity) {
        this.mCurrentActivity = mCurrentActivity;
    }
}