Android获取一些常用信息

获取版本号和版本名：

       PackageManager pm = context.getPackageManager();  
        PackageInfo pi = pm.getPackageInfo(context.getPackageName(), 0);  
        versionName = pi.versionName;  
        versioncode = pi.versionCode;

手机型号、系统版本号、sdk版本号

手机型号：android.os.Build.MODEL

sdk版本号：android.os.Build.VERSION.SDK_INT

android系统版本号：android.os.Build.VERSION.RELEASE

获取手机分辨率；宽、高

        WindowManager windowManager = getWindowManager();    
        Display display = windowManager.getDefaultDisplay();    
        int screenWidth = screenWidth = display.getWidth();    
        int screenHeight = screenHeight = display.getHeight(); 

//wifi情况下获取手机ip

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>

<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>

<uses-permission android:name="android.permission.WAKE_LOCK"></uses-permission> 

       //获取wifi服务  
        WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);  
        //判断wifi是否开启  
        if (!wifiManager.isWifiEnabled()) {  
        wifiManager.setWifiEnabled(true);    
        }  
        WifiInfo wifiInfo = wifiManager.getConnectionInfo();       
        int ipAddress = wifiInfo.getIpAddress();   
         String ip = (ipAddress & 0xFF ) + "." +       
        ((ipAddress  >> 8 ) & 0xFF) + "." +       
        ((ipAddress  >> 16 ) & 0xFF) + "." +       
        ( ipAddress  >> 24 & 0xFF) ; 

//GPRS下获取手机ip   需设置 < uses-permission   android:name = "android.permission.INTERNET" > </ uses-permission >

public String getLocalIpAddress()  
    {  
        try  
        {  
            for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();)  
            {  
               NetworkInterface intf = en.nextElement();  
               for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();)  
               {  
                   InetAddress inetAddress = enumIpAddr.nextElement();  
                   if (!inetAddress.isLoopbackAddress())  
                   {  
                       return inetAddress.getHostAddress().toString();  
                   }  
               }  
           }  
        }  
        catch (SocketException ex)  
        {  
            Log.e("WifiPreference IpAddress", ex.toString());  
        }  
        return null;  
    }  

//获取手机mac地址，直接用命令来获取，需要支持busybox 命令

public String getMacAddress(){   
     String result = "";     
     String Mac = "";
     result = callCmd("busybox ifconfig","HWaddr");

     //如果返回的result == null，则说明网络不可取
     if(result==null){
         return "网络出错，请检查网络";
     }

     //对该行数据进行解析
     //例如：eth0      Link encap:Ethernet  HWaddr 00:16:E8:3E:DF:67
     if(result.length()>0 && result.contains("HWaddr")==true){
         Mac = result.substring(result.indexOf("HWaddr")+6, result.length()-1);
         Log.i("test","Mac:"+Mac+" Mac.length: "+Mac.length());

         if(Mac.length()>1){
             Mac = Mac.replaceAll(" ", "");
             result = "";
             String[] tmp = Mac.split(":");
             for(int i = 0;i<tmp.length;++i){
                 result +=tmp[i];
             }
         }
         Log.i("test",result+" result.length: "+result.length());            
     }
     return result;
 }   


 public String callCmd(String cmd,String filter) {   
     String result = "";   
     String line = "";   
     try {
         Process proc = Runtime.getRuntime().exec(cmd);
         InputStreamReader is = new InputStreamReader(proc.getInputStream());   
         BufferedReader br = new BufferedReader (is);   

         //执行命令cmd，只取结果中含有filter的这一行
         while ((line = br.readLine ()) != null && line.contains(filter)== false) {   
             //result += line;
             Log.i("test","line: "+line);
         }

         result = line;
         Log.i("test","result: "+result);
     }   
     catch(Exception e) {   
         e.printStackTrace();   
     }   
     return result;   
 }

//获取mac地址，建议使用此方法

String mac = "";
WifiManager wifiManager = (WifiManager) context
.getSystemService(Context.WIFI_SERVICE);
WifiInfo wifiInfo = wifiManager.getConnectionInfo();
mac = wifiInfo.getMacAddress();

//获取手机唯一标示

IMEI：仅仅对android手机有效，需要添加权限

<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>

TelephonyManager TelephonyMgr = (TelephonyManager)getSystemService(TELEPHONY_SERVICE); 
String szImei = TelephonyMgr.getDeviceId(); 

打电话：

权限<uses-permission android:name="android.permission.CALL_PHONE">
</uses-permission>

Intent phoneIntent = new Intent("android.intent.action.CALL", Uri.parse("tel:"+ inputStr));