android網絡狀態判斷 – Android移動開發技術文章_手機開發 Android移動開發教學課程

import java.net.InetAddress;

 

import android.app.Activity;

import android.content.Context;

import android.net.ConnectivityManager;

import android.net.NetworkInfo;

import android.net.wifi.WifiInfo;

import android.net.wifi.WifiManager;

import android.os.Bundle;

import android.widget.ScrollView;

import android.widget.TextView;

 

public class NetAct extends Activity {

        private TextView textView;

 

        public void onCreate(Bundle savedInstanceState) {

                super.onCreate(savedInstanceState);

                textView = new TextView(this);

                textView.setBackgroundColor(0xffffffff);

                textView.setTextColor(0xff0000ff);

                textView.setTextSize(15.0f);

                textView.setScrollBarStyle(TextView.SCROLLBARS_OUTSIDE_OVERLAY);

 

                ScrollView scrollView = new ScrollView(this);

                scrollView.addView(textView);

                setContentView(scrollView);

                getLocalHost();

                getWifiInfo();

                initNetworkInfo();

        }

 

        private void getLocalHost() {

                try {

                        InetAddress iAdd = InetAddress.getLocalHost();

                        String line = "";

                        String hostName = iAdd.getHostName();

                        if (hostName != null) {

                                InetAddress[] adds = InetAddress.getAllByName(hostName);

                                for (int i = 0; i < adds.length; i++) {

                                        iAdd = adds[i];

                                        line = "HostName=" + iAdd.getHostName() + "\n";

                                        textView.append(line);

                                        line = "CanonicalHostName=" + iAdd.getCanonicalHostName()

                                                        + "\n";

                                        textView.append(line);

                                        line = "HostAddress=" + iAdd.getHostAddress() + "\n";

                                        textView.append(line);

                                        textView.append("\n");

                                }

                        }

                } catch (Exception e) {

                        e.printStackTrace();

 

                }

        }

 

        public void getWifiInfo() {

                WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);

                WifiInfo info = wifi.getConnectionInfo();

                textView.append("HiddenSSID=" + info.getHiddenSSID() + "\n");

                textView.append("IpAddress=" + info.getIpAddress() + "\n");

                textView.append("LinkSpeed=" + info.getLinkSpeed() + "\n");

                textView.append("NetworkId=" + info.getNetworkId() + "\n");

                textView.append("Rssi=" + info.getRssi() + "\n");

                textView.append("SSID=" + info.getSSID() + "\n");

                textView.append("MacAddress=" + info.getMacAddress() + "\n");

        }

 

        public void initNetworkInfo() {

                ConnectivityManager mag = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);

                // 此處輸出當前可用網絡

                textView.append("\nActive:\n");

                NetworkInfo info = mag.getActiveNetworkInfo();

                textView.append("ExtraInfo=" + info.getExtraInfo() + "\n");

                textView.append("SubtypeName=" + info.getSubtypeName() + "\n");

                textView.append("TypeName=" + info.getTypeName() + "\n");

 

                textView.append("\nWifi:\n");

                NetworkInfo wifiInfo = mag

                                .getNetworkInfo(ConnectivityManager.TYPE_WIFI);

 

                textView.append("ExtraInfo=" + wifiInfo.getExtraInfo() + "\n");

                textView.append("SubtypeName=" + wifiInfo.getSubtypeName() + "\n");

                textView.append("TypeName=" + wifiInfo.getTypeName() + "\n");

                NetworkInfo mobInfo = mag

                                .getNetworkInfo(ConnectivityManager.TYPE_MOBILE);

                textView.append("\nMobile:\n");

                textView.append("ExtraInfo=" + mobInfo.getExtraInfo() + "\n");

                textView.append("SubtypeName=" + mobInfo.getSubtypeName() + "\n");

                textView.append("TypeName=" + mobInfo.getTypeName() + "\n");

        }

}

 

在AndroidManifest.xml中增加:

    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>明天繼續更新一個更加成熟的~