获取应用和安装手机相关信息：应用版本号，手机型号，手机品牌，Android系统版本号

/**

* User-Agent

*

* @return user-agent

*/

public String getUser_Agent() {

String ua = "Android;" + getOSVersion() + ";" + getVersion() + ";"

+ getVendor() + "-" + getDevice();

return ua;

}

/**

* device model name, e.g: GT-I9100

*

* @return the user_Agent

*/

public String getDevice() {

return Build.MODEL;

}

/**

* device factory name, e.g: Samsung

*

* @return the vENDOR

*/

public String getVendor() {

return Build.BRAND;

}

/**

* @return the SDK version

*/

public int getSDKVersion() {

return Build.VERSION.SDK_INT;

}

/**

* @return the OS version

*/

public String getOSVersion() {

return Build.VERSION.RELEASE;

}

/**

* Retrieves application's version number from the manifest

*

* @return versionName

*/

public String getVersion() {

String version = "0.0.0";

try {

PackageInfo packageInfo = getPackageManager().getPackageInfo(

getPackageName(), 0);

version = packageInfo.versionName;

} catch (NameNotFoundException e) {

e.printStackTrace();

}

return version;

}