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Android网络监听和网络判断示例介绍

移动开发
2023-05-03

大家好，本篇文章主要讲的是Android网络监听和网络判断示例介绍，感兴趣的同学赶快来看一看吧，对你有帮助的话记得收藏一下，方便下次浏览

一、在AndroidMainfest.xml中添加权限


<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />

二、NetUtilSS 网络判断工具类


import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.LocationManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.telephony.TelephonyManager;
import android.util.Log;
import java.util.List;
 
 
public class NetUtilSS {
    // 没有连接
    public static final int NETWORN_NONE = 0;
    // wifi连接
    public static final int NETWORN_WIFI = 1;
    // 手机网络数据连接
    public static final int NETWORN_2G = 2;
 
    public static final int NETWORN_3G = 3;
 
    public static final int NETWORN_4G = 4;
 
    public static final int NETWORN_MOBILE = 5;
 
    private NetUtilSS() {
        /* cannot be instantiated */
        throw new UnsupportedOperationException("cannot be instantiated");
    }
 
    /**
     * 判断网络是否连接
     *
     * @param context
     * @return
     */
    public static boolean isConnected(Context context) {
 
        ConnectivityManager connectivity = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        // 如果仅仅是用来判断网络连接
 
        if (null != connectivity) {
 
            NetworkInfo info = connectivity.getActiveNetworkInfo();
            if (null != info && info.isConnected()) {
                if (info.getState() == NetworkInfo.State.CONNECTED) {
                    return true;
                }
            }
        }
        return false;
    }
 
    /**
     * 判断GPS是否打开
     *
     * @param context
     * @return
     */
 
    public static boolean isGpsEnabled(Context context) {
        LocationManager lm = ((LocationManager) context
                .getSystemService(Context.LOCATION_SERVICE));
        List<String> accessibleProviders = lm.getProviders(true);
        return accessibleProviders != null && accessibleProviders.size() > 0;
    }
 
    /**
     * 判断是否是3G网络
     * @param context
     * @return
     */
 
    public static boolean is3rd(Context context) {
        ConnectivityManager cm = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo networkINfo = cm.getActiveNetworkInfo();
        if (networkINfo != null
                && networkINfo.getType() == ConnectivityManager.TYPE_MOBILE) {
            return true;
        }
        return false;
    }
 
    /**
     * 判断是wifi还是3g网络,用户的体现性在这里了，wifi就可以建议下载或者在线播放。
     *
     * @param context
     * @return
     */
 
    public static boolean isWifi(Context context) {
        ConnectivityManager cm = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo networkINfo = cm.getActiveNetworkInfo();
        if (networkINfo != null
                && networkINfo.getType() == ConnectivityManager.TYPE_WIFI) {
            return true;
        }
        return false;
    }
 
    /**
     * 打开网络设置界面
     */
    public static void openSetting(final Activity activity) {
        Log.e("netutils", "我是网络1111");
        final AlertDialog.Builder builder = new AlertDialog.Builder(activity);
        builder.setTitle("开启网络服务");
        builder.setMessage("网络没有连接，请到设置进行网络设置！");
        builder.setPositiveButton("确定",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int which) {
                        if (android.os.Build.VERSION.SDK_INT > 10) {
                            // 3.0以上打开设置界面，也可以直接用ACTION_WIRELESS_SETTINGS打开到wifi界面
                            activity.startActivity(new Intent(
                                    android.provider.Settings.ACTION_SETTINGS));
                        } else {
                            activity.startActivity(new Intent(
                                    android.provider.Settings.ACTION_WIRELESS_SETTINGS));
                        }
                        dialog.cancel();
                    }
                });
 
        builder.setNegativeButton("取消",
                new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.cancel();
 
                        Log.e("netutils", "我是网络");
                    }
                });
        builder.show();
    }
 
    /**
     * 返回当前网络连接类型
     *
     * @param context 上下文
     * @return
     */
    public static int getNetworkState(Context context) {
 
        ConnectivityManager connManager = (ConnectivityManager) context
 
                .getSystemService(Context.CONNECTIVITY_SERVICE);
 
        if (null == connManager)
 
            return NETWORN_NONE;
 
        NetworkInfo activeNetInfo = connManager.getActiveNetworkInfo();
 
        if (activeNetInfo == null || !activeNetInfo.isAvailable()) {
 
            return NETWORN_NONE;
 
        }
        // Wifi
        NetworkInfo wifiInfo = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
 
        if (null != wifiInfo) {
 
            NetworkInfo.State state = wifiInfo.getState();
 
            if (null != state)
 
                if (state == NetworkInfo.State.CONNECTED || state == NetworkInfo.State.CONNECTING) {
 
                    return NETWORN_WIFI;
 
                }
 
        }
        // 网络
        NetworkInfo networkInfo = connManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
 
        if (null != networkInfo) {
 
            NetworkInfo.State state = networkInfo.getState();
 
            String strSubTypeName = networkInfo.getSubtypeName();
 
            if (null != state)
                if (state == NetworkInfo.State.CONNECTED || state == NetworkInfo.State.CONNECTING) {
 
                    switch (activeNetInfo.getSubtype()) {
 
                        case TelephonyManager.NETWORK_TYPE_GPRS: // 联通2g
 
                        case TelephonyManager.NETWORK_TYPE_CDMA: // 电信2g
 
                        case TelephonyManager.NETWORK_TYPE_EDGE: // 移动2g
 
                        case TelephonyManager.NETWORK_TYPE_1xRTT:
 
                        case TelephonyManager.NETWORK_TYPE_IDEN:
 
                            return NETWORN_2G;
 
                        case TelephonyManager.NETWORK_TYPE_EVDO_A: // 电信3g
 
                        case TelephonyManager.NETWORK_TYPE_UMTS:
 
                        case TelephonyManager.NETWORK_TYPE_EVDO_0:
 
                        case TelephonyManager.NETWORK_TYPE_HSDPA:
 
                        case TelephonyManager.NETWORK_TYPE_HSUPA:
 
                        case TelephonyManager.NETWORK_TYPE_HSPA:
 
                        case TelephonyManager.NETWORK_TYPE_EVDO_B:
 
                        case TelephonyManager.NETWORK_TYPE_EHRPD:
 
                        case TelephonyManager.NETWORK_TYPE_HSPAP:
 
                            return NETWORN_3G;
 
                        case TelephonyManager.NETWORK_TYPE_LTE:
 
                            return NETWORN_4G;
 
                        default://有机型返回16,17
 
                            //中国移动 联通 电信 三种3G制式
 
                            if (strSubTypeName.equalsIgnoreCase("TD-SCDMA") || strSubTypeName.equalsIgnoreCase("WCDMA") || strSubTypeName.equalsIgnoreCase("CDMA2000")) {
 
                                return NETWORN_3G;
 
                            } else {
 
                                return NETWORN_MOBILE;
 
                            }
                    }
                }
        }
        return NETWORN_NONE;
    }
}

三、IntentReceiver网络监听工具类


import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
 
public class IntentReceiver extends BroadcastReceiver {
    private boolean isnet ;
    @Override
    public void onReceive(Context context, Intent intent) {
        ConnectivityManager manager = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetworkInfo = manager.getActiveNetworkInfo();
        if (isnet == true){
            if (activeNetworkInfo != null && activeNetworkInfo.isAvailable()){
                ToastUtils.getInstance(context).show("网络连接成功",1000);
                SpUtils.putString(context,"network","有网");
                isnet = false;
            }else{
                ToastUtils.getInstance(context).show("网络开小差了",1000);
                SpUtils.putString(context,"network","无网");
                isnet = true;
            }
        }else{
            isnet = true;
        }
        isnet = true;
    }
}

四、BaseActivity


import androidx.appcompat.app.AppCompatActivity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.IntentFilter;
import android.net.ConnectivityManager;
import android.os.Bundle;
import android.widget.Toast;
 
public class BaseActivity extends AppCompatActivity {
 
    private BroadcastReceiver receiver =  new IntentReceiver();
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_base);
 
        IntentFilter filter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
        this.registerReceiver(receiver,filter);
 
        boolean connected = NetUtilSS.isConnected(this);
        if (connected) {
            boolean wifi = NetUtilSS.isWifi(this);
            boolean rd = NetUtilSS.is3rd(this);
            if (wifi) {
                Toast.makeText(this, "WIFI已经连接", Toast.LENGTH_SHORT).show();
                SpUtils.putString(this,"network","有网");
            } else if (rd) {
                Toast.makeText(this, "手机流量已经连接", Toast.LENGTH_SHORT).show();
                SpUtils.putString(this,"network","有网");
            } else {
                Toast.makeText(this, "网络连接不可用，请检查网络设置", Toast.LENGTH_SHORT).show();
                SpUtils.putString(this,"network","无网");
//                NetUtilSS.openSetting((Activity) mContext);
            }
        } else {
            Toast.makeText(this, "网络连接不可用，请检查网络设置", Toast.LENGTH_SHORT).show();
            SpUtils.putString(this,"network","无网");
//            NetUtilSS.openSetting((Activity) mContext);
        }
    }
 
    public static boolean isNetwork(Context context){
        String network = SpUtils.getString(context, "network");
        if (network.equals("有网")){
            return true;
        }
        return false;
    }
 
    @Override
    protected void onDestroy() {
        super.onDestroy();
        unregisterReceiver(receiver);
    }
 
}

五、MainActivity   


import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
 
public class MainActivity extends BaseActivity {
 
    String TAG  =  "MainActivity";
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
 
        if (isNetwork(this)){
            Log.e(TAG,"有网");
            //请求
            //....
 
        }else {
            Log.e(TAG,"无网");
            //提示
            //....
        }
    }
}

到此这篇关于Android网络监听和网络判断示例介绍的文章就介绍到这了,更多相关Android网络监听和网络判断内容请搜索编程学习网以前的文章希望大家以后多多支持编程学习网！

本文标题为：Android网络监听和网络判断示例介绍

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