Android 显示网络信息 ConnectivityManager用法

用程序显示当前Android手机联网信息

main.java

package zy.netmana;
import android.app.Activity;  
import android.content.Context;  
import android.net.ConnectivityManager;  
import android.net.NetworkInfo;  
import android.os.Bundle;  
import android.widget.TextView;
import android.widget.Toast;
public class main extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       String display="";
       ConnectivityManager connec =  (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE); 
       NetworkInfo info = connec.getActiveNetworkInfo();
       connec.getAllNetworkInfo();
      TextView tv=(TextView)findViewById(R.id.tv);
     String typeName = info.getTypeName(); //cmwap/cmnet/wifi/uniwap/uninet
     NetworkInfo []allinfo=  connec.getAllNetworkInfo();
     tv.setText( allinfo[0].toString());
    }
}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="zy.netmana"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".main"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
  
    </application>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>
    <uses-sdk android:minSdkVersion="7" />
</manifest> 

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView  
     android:id="@+id/tv"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/hello"
    />
</LinearLayout>