Android项目之网络状况

最新推荐文章于 2022-01-15 20:56:07 发布

原创最新推荐文章于 2022-01-15 20:56:07 发布 · 286 阅读

0 ·

CC 4.0 BY-SA版权

Android项目专栏收录该内容

34 篇文章

订阅专栏

本文介绍了一个用于监测和管理Android设备网络状态变化的实用类NetworkManager。该类能够获取当前网络类型并监听网络变化，通过注册监听器的方式通知应用程序网络状态的变化。

获取当前网络类型且监听网络变化：

public class NetworkManager extends BaseManager {
    /** 上一次的网络连接类型 */
    private int lastConnectType = -1;
    private List<OnNetworkChangeListener> onNetworkChangeListeners = new ArrayList<>();
    private BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);

            NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
            int currentType = -1;
            if (networkInfo != null && networkInfo.isConnected()) {
                currentType = networkInfo.getType();
            } else {
                currentType = -1;
            }

            if (lastConnectType != currentType) {
                lastConnectType = currentType;
                for (OnNetworkChangeListener onNetworkChangeListener : onNetworkChangeListeners) {
                    onNetworkChangeListener.onNetworkChange(currentType);
                }
            }
        }
    };

    @Override
    public void onManagerCreate(CDApplication application) {
        IntentFilter intentFilter = new IntentFilter();
        intentFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
        application.registerReceiver(broadcastReceiver, intentFilter);
    }

    /**
     * 获取当前的网络连接类型 {@link NetworkInfo#getType()}
     * 注意：手机网络并不是只有wifi和移动流量。
     *
     * @return 网络类型包括：wifi，移动数据，蓝牙共享，网线，VPN等等，
     */
    public int getNetWorkType() {
        return lastConnectType;
    }

    /** 添加网络变化监听器 */
    public void addOnNetworkChangeListener(OnNetworkChangeListener onNetworkChangeListener) {
        onNetworkChangeListeners.add(onNetworkChangeListener);
    }

    /** 移除网络变化监听器 */
    public void removeOnNetworkChangeListener(OnNetworkChangeListener onNetworkChangeListener) {
        onNetworkChangeListeners.remove(onNetworkChangeListener);
    }

    public interface OnNetworkChangeListener {
        /** 网络变化的回调 */
        void onNetworkChange(int networkType);
    }
}

常见网络类型：

ConnectivityManager
public static final int TYPE_NONE        = -1;
public static final int TYPE_MOBILE      = 0;
public static final int TYPE_WIFI        = 1;
public static final int TYPE_BLUETOOTH   = 7;//蓝牙可以上网哦