Android获取应用程序的信息

1.获取应用程序的版本号：

private String getAppVersionName() {        String versionName = "";        try {            PackageManager pm = this.getPackageManager();            PackageInfo pi = pm.getPackageInfo(this.getPackageName(), 0);            versionName = pi.versionName;            if (versionName == null || versionName.length() <= 0) {                return "";            }        } catch (Exception e) {            e.printStackTrace();        }        return versionName;    }

2.获取手机webview的useragent

private String getUserAgent() {        WebView wv = new WebView(this);        WebSettings settings = wv.getSettings();        String user_agent = settings.getUserAgentString();        wv.destroy();        return user_agent;    }

3.获取Android设备的唯一识别码

TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);telephonyManager.getDeviceId()

4.获取手机ip

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(LOG_TAG, ex.toString());   }   return null; } 

要记得添加权限 <uses-permission android:name="android.permission.INTERNET"/>

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