Category Archives: programming

Spring Boot SSL with Android Retrofit

To setup Spring Boot SSL with Android Retrofit connecting on HTTPS 443: In Spring Boot <your project>/src/main/resources/ – add the following values (not the “1.” which is just WordPress ordered list numbering) security.require-ssl=true server.port=8443 server.ssl.key-store=src/main/resources/private/keystore server.ssl.key-store-password=changeit server.ssl.key-password=changeit create and add an SSL key to the location specified by server.ssl.key-store. Note: the SSL certificate file is… Read More »

Android AsyncTask return result

To get Android AsyncTask to return a result use a callback method (Observer pattern) by following these steps. Define a constructor for our async class which extends AsyncTask (we’re required to subclass/extend AsyncTask for use). Let’s call our AsyncTask class MyAsyncTask. Constructor parameter takes a class which will handle the AsyncTask result.  Usually an Activity or Fragment,… Read More »

H2 Web Console to In Memory Database – Spring Boot

To get an H2 Database Web Console accessing an in-memory database running on Spring Boot: Register H2’s WebServlet (with UrlMapping /console/*) to your Spring project in a Configuration annotated class. Restart your Application. Open a web page to http://localhost:8080/console/ Be sure you’re accessing the correct database JDBC URL (default would be jdbc:h2:mem:testdb) (Credit: Spring Framework Guru)   import org.h2.server.web.WebServlet;… Read More »

Android Robolectric Support Fragment FragmentTestUtil

To use Android Support Fragment v4 in Robolectric 3.0 you must add gradle dependency in /app/build.gradle testCompile ‘org.robolectric:shadows-support-v4:3.0’ Then import into your Robolectric testing java class import; then you can create/start android support v4 fragments within your Robolectric testing java class for unit testing: SupportFragmentTestUtil.startVisibleFragment(fragment); Cross posted to StackOverflow Android Robolectric Support Fragment.

Android Studio generate foreach loop

Begin typing foreach until autocomplete pops up.  Select “Create a for each loop”. You’ll then get an empty for each loop that you can start filling in, first supplying the Type of each object, a variable name of your choice for that object, then hit Enter to move to the name of the variable (a… Read More »

Android Studio androidTest sourceSets gradle not recognized

Android Studio (app) build.gradle sourceSets androidTest java.srcDir property may not be recognized when using the array format of this source directory property setting. BAD sourceSets { androidTest { java.srcDirs = [‘androidTest/java’] } } GOOD sourceSets { androidTest { java.srcDir file(‘androidTest/java’) } } For setting up Robotium UI / Integration testing, it’s important that your androidTest source directory… Read More »