android 网络状态判断

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);
// 此处输出当前可用网络
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>


明天继续更新一个更加成熟的~

更多相关文章

随机推荐