android 使用網絡連接adb（需Root）

 首先判斷是否獲取root權限，如果機器已root，則申請root權限，然後打開adb。

 private void runAsRooter(){
        if(new File("/system/bin/su").exists()||new File("/system/xbin/su").exists())    
        {
            Toast.makeText(this,"已獲取root權限",Toast.LENGTH_SHORT).show();
            return;
        }
        try {
            Process process = Runtime.getRuntime().exec("su");
            process.waitFor();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    private void startAdb()
    {
        //成功打開adb
        try {
            exec("setprop service.adb.tcp.port 5555\nstop adbd\nstart adbd");
            Toast.makeText(this,"ip地址爲: "+ NetworkUtil.getIP(this),Toast.LENGTH_SHORT).show();
        } catch (Exception e) {
           Toast.makeText(this,e.getMessage(),Toast.LENGTH_LONG).show();;
        }
    }

    private void exec(String s) {
        Process process = null;
        DataOutputStream dos = null;
        try {
            process = Runtime.getRuntime().exec("su");
            dos = new DataOutputStream(process.getOutputStream());
            dos.writeBytes(s+"\n");
            dos.writeBytes("exit\n");
            dos.flush();
            process.waitFor();
            return;
        } catch(Exception e) {
            e.printStackTrace();
        }
    }

NetworkUtil的代碼：

package com.jxd.jxdtest.commonutil;

import android.content.Context;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.util.Log;

import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;

import static android.content.Context.WIFI_SERVICE;

public class NetworkUtil {
    /**
     * 獲取的是外網ip地址
     * @return
     */
    public static String getHostIP() {

        String hostIp = null;
        try {
            Enumeration nis = NetworkInterface.getNetworkInterfaces();
            InetAddress ia = null;
            while (nis.hasMoreElements()) {
                NetworkInterface ni = (NetworkInterface) nis.nextElement();
                Enumeration<InetAddress> ias = ni.getInetAddresses();
                while (ias.hasMoreElements()) {
                    ia = ias.nextElement();
                    if (ia instanceof Inet6Address) {
                        continue;// skip ipv6
                    }
                    String ip = ia.getHostAddress();
                    if (!"127.0.0.1".equals(ip)) {
                        hostIp = ia.getHostAddress();
                        break;
                    }
                }
            }
        } catch (SocketException e) {
            Log.i("yao", "SocketException");
            e.printStackTrace();
        }
        return hostIp;

    }

    public static String getIP(Context context) {
        //獲取內網IP
        WifiManager wifiService = (WifiManager) context.getSystemService(WIFI_SERVICE);
        WifiInfo wifiinfo = wifiService.getConnectionInfo();
        return intToIp(wifiinfo.getIpAddress());
    }

    private static String intToIp(int i) {

        return (i & 0xFF) + "." + ((i >> 8) & 0xFF) + "." + ((i >> 16) & 0xFF)
                + "." + (i >> 24 & 0xFF);
    }

}