packages/MtpDocumentsProvider/src/com/android/mtp/ReceiverActivity.java

/*
 * 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.mtp;

import android.app.Activity;
import android.content.Intent;
import android.hardware.usb.UsbManager;
import android.os.Bundle;

/**
 * Invisible activity to receive intents.
 * To show the application chooser for the UsbManager.ACTION_USB_DEVICE_ATTACHED intent, the intent
 * should be received by activity. The activity has NoDisplay theme and immediately terminate after
 * routing intent to MtpDocumentsService.
 */
public class ReceiverActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (UsbManager.ACTION_USB_DEVICE_ATTACHED.equals(getIntent().getAction())) {
            final Intent serviceIntent = new Intent(
                    MtpDocumentsService.ACTION_OPEN_DEVICE,
                    null,
                    this,
                    MtpDocumentsService.class);
            serviceIntent.putExtra(
                    UsbManager.EXTRA_DEVICE,
                    getIntent().getParcelableExtra(UsbManager.EXTRA_DEVICE));
            startService(serviceIntent);
        }
        finish();
    }
}