降低targetSdk到27，暂时处理键盘无法弹起问题，fix #132

Author: CarGuo

android/app/build.gradle

@@ -30,7 +30,7 @@ android {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "com.shuyu.gsygithub.gsygithubappflutter"
         minSdkVersion 16
-        targetSdkVersion 28
+        targetSdkVersion 27
         versionCode 15
         versionName "1.1.5"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

lib/widget/HomeDrawer.dart

@@ -145,7 +145,7 @@ class HomeDrawer extends StatelessWidget {
                                     color: Colors.transparent,
                                     child: new Text(
                                       CommonUtils.getLocale(context).home_user_info,
-                                      style: GSYConstant.normalText,
+                                      style: GSYConstant.normalTextBold,
                                     ))),
                             onTap: () {
                               NavigatorUtils.gotoUserProfileInfo(context);