android设置有线网卡IP

package android.config.ip; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import android.app.Activity; import android.os.Bundle; import android.os.SystemProperties; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; import android.util.Log; import android.view.View; public class config extends Activity { /** Called when the activity is first created. */ private EditText IpText; private EditText NetmaskText; private Button Config, exit; String Filename; File file = null; // TextView ipView, netmaskView; int filelength; private int CreatFile() { file = new File("/data/data/android.config.ip/ipconfig"); if(!file.exists()) { try { file.createNewFile(); Log.i("write", "Creat file success"); return 1; }catch(IOException e) { Log.i("write", "Creat file fail"); return -1; } } else { Log.i("write", "file is exist"); return 0; } } private void writeFile(File fileName, String info) { try { OutputStream fout = new BufferedOutputStream(new FileOutputStream(fileName)); byte[] bytes = info.getBytes(); fout.write(bytes); fout.close(); Log.i("write","Write file sucess"); } catch (Exception err) { Log.i("write","Write file fail"); } } private String readFile(File fileName) { String Strtmp = null; try { InputStream fin = new BufferedInputStream(new FileInputStream(fileName)); filelength = fin.available(); byte[] bytes = new byte[filelength]; fin.read(bytes); Log.i("write","Read file success"); Strtmp = new String(bytes); return Strtmp; } catch (Exception err) { Log.i("write","Read file fail"); return ""; } } private boolean CheckIPFormat(String ip,boolean isMask) { //判断格式是否正确 String[] arrIp = ip.split("\\."); int tmpint; if(arrIp.length !=4) { //Log.i("write", "A:" + String.valueOf(arrIp.length)); return false; } for(int i=0;i<4;i++) { tmpint = Integer.parseInt(arrIp[i],10); if(!isMask && (i==0) && (tmpint<1 || tmpint>223))return false; if(tmpint<0 || tmpint>255) { //Log.i("write", "B:" + String.valueOf(tmpint)); return false; } } return true; } private boolean ConfigIpMask() { SystemProperties.set("ctl.start","setip"); try { Thread.sleep(1000); }catch(Exception ex){ Log.i("write","Excetion: " + ex.getMessage()); } String ret = SystemProperties.get("init.svc.setip",""); if(ret != null && ret.equals("stopped")) { return true; } return false; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // ipView = (TextView)findViewById(R.id.iptext); // netmaskView = (TextView)findViewById(R.id.netmasktext); IpText = (EditText)findViewById(R.id.ip); NetmaskText = (EditText)findViewById(R.id.netmask); // ipView.setText("IP: "); // netmaskView.setText("mask: "); //从/data/data/android.config.ip/ipconfig文件中读取ip和mask并显示出来 if(CreatFile() == 0) { String IpMaskStr = readFile(file); if(IpMaskStr != null && IpMaskStr.length()>0) { try{ String arrCfg[] = IpMaskStr.split(" "); IpText.setText(arrCfg[0]); NetmaskText.setText(arrCfg[1]); //SystemProperties.set("ctl.start","setip"); if(!ConfigIpMask()) Toast.makeText(config.this, "config ip & mask error", Toast.LENGTH_SHORT).show(); }catch(Exception err) { Log.i("write", "display ip & mask error"); } } } //输入ip和netmask后，按下config按钮，获取ip和mask的值 Config = (Button)findViewById(R.id.config); Config.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { IpText = (EditText)findViewById(R.id.ip); NetmaskText = (EditText)findViewById(R.id.netmask); //取得两个控件的值 String IpStr = IpText.getText().toString(); String NetmaskStr = NetmaskText.getText().toString(); if(!CheckIPFormat(IpStr,false) || !CheckIPFormat(NetmaskStr,true)) { //show message box Toast.makeText(config.this, "error input:xxx.xxx.xxx.xxx", Toast.LENGTH_SHORT).show(); } else { //把ip和netmask写入文件中 writeFile(file, IpStr.concat(" ").concat(NetmaskStr)); //调用setip服务修改IP和mask //SystemProperties.set("ctl.start","setip"); if(!ConfigIpMask()) Toast.makeText(config.this, "config ip & mask error", Toast.LENGTH_SHORT).show(); else finish(); } } }); //按下exit按钮，设置原IP和mask exit = (Button)findViewById(R.id.exit); exit.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { finish(); } } ); } }