public class

HostUpdateReceiver

extends BroadcastReceiver

 java.lang.Object

↳BroadcastReceiver

↳androidx.car.app.activity.HostUpdateReceiver

Gradle dependencies

compile group: 'androidx.car.app', name: 'app-automotive', version: '1.2.0-rc01'

  • groupId: androidx.car.app
  • artifactId: app-automotive
  • version: 1.2.0-rc01

Artifact androidx.car.app:app-automotive:1.2.0-rc01 it located at Google repository (https://maven.google.com/)

Overview

BroadcastReceiver used to detect host updates, and trigger automatic re-connection.

Summary

Constructors
publicHostUpdateReceiver(CarAppViewModel viewModel)

Methods
public voidonReceive(Context context, Intent intent)

public voidregister(Context context)

Registers this broadcast receiver

public voidunregister(Context context)

Unregisters this broadcast receiver

from java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructors

public HostUpdateReceiver(CarAppViewModel viewModel)

Methods

public void register(Context context)

Registers this broadcast receiver

public void unregister(Context context)

Unregisters this broadcast receiver

public void onReceive(Context context, Intent intent)

Source

/*
 * Copyright 2021 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 androidx.car.app.activity;

import static androidx.annotation.RestrictTo.Scope.LIBRARY;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;

import androidx.annotation.NonNull;
import androidx.annotation.RestrictTo;

/**
 * {@link BroadcastReceiver} used to detect host updates, and trigger automatic re-connection.
 *
 * @hide
 */
@RestrictTo(LIBRARY)
public class HostUpdateReceiver extends BroadcastReceiver {
    private final CarAppViewModel mViewModel;

    public HostUpdateReceiver(@NonNull CarAppViewModel viewModel) {
        mViewModel = viewModel;
    }

    /** Registers this broadcast receiver */
    public void register(@NonNull Context context) {
        context.registerReceiver(this, createFilter(Intent.ACTION_PACKAGE_REPLACED));
    }

    private IntentFilter createFilter(String intentAction) {
        IntentFilter filter = new IntentFilter(intentAction);
        filter.addDataScheme("package");
        return filter;
    }

    /** Unregisters this broadcast receiver */
    public void unregister(@NonNull Context context) {
        context.unregisterReceiver(this);
    }

    @Override
    public void onReceive(@NonNull Context context, @NonNull Intent intent) {
        if (!intent.getAction().equals(Intent.ACTION_PACKAGE_REPLACED)) {
            // Ignore
            return;
        }
        mViewModel.onHostUpdated();
    }
}