android 获取版本号的方法（非Activity 类下也可以）

	/*** 获取App的版本号* @return*/public static String getAppVersion(Context context) {PackageInfo pInfo = null;String version = "NotFound";try {pInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);version = pInfo.versionName; //<span style="font-family: Arial, Helvetica, sans-serif;">获取序列号使用 pInfo.</span><span style="font-family: Consolas, Menlo, Monaco, 'Lucida Console', 'Liberation Mono', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Courier New', monospace, sans-serif; white-space: inherit; color: rgb(34, 34, 34); font-size: 13px; background-color: rgb(238, 238, 238);">versionCode</span><span style="font-family: Arial, Helvetica, sans-serif;"></span>} catch (NameNotFoundException e) {e.printStackTrace();}return version;}