Update README.md

README.md

@@ -4,53 +4,7 @@ A simplified gravity simulator for Android, built with [libgdx](http://libgdx.ba
 
 # Building
 
-## Eclipse
-If you have [Eclipse with the ADT Plugin](https://developer.android.com/tools/sdk/eclipse-adt.html), you can
-just [download this zip](https://github.com/KaeruCT/glxy-android/archive/master.zip), extract it,
-import the projects inside into Eclipse and then export an APK.
-
-## Ant
-You can also build the application with Apache Ant.
-To build, you will need to have the [Android SDK](https://developer.android.com/sdk/index.html)
-and [Apache Ant](https://github.com/apache/ant) installed.
-
-Be sure to have a supported target SDK version installed.
-This application needs from version 5 onwards. It has been tested with version 17.
-You can list the SDK versions you have installed with `$ android list targets`
-
-Additionally, you will need jarsigner if you want to sign the resulting APK.
-The jarsigner utility comes with the Java JDK.
-
-1. Clone the repo:
-
-   `$ git clone https://github.com/KaeruCT/GLXY.git`
-
-2. Go into the android project directory:
-
-   `$ cd GLXY/glxy-android`
-
-4. Update the Android project:
-
-   `$ android update project --path . --target android-17`
-
-   If you don't have version 17 of the SDK, replace `android-17` for one the
-   SDK versions you have installed.
-
-3. Run Ant:
-
-   `$ ant release`
-
-4. Sign the resulting APK file:
-```
-   $ mv bin/GLXY-release-unsigned.apk GLXY.apk && \
-   jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 \
-     -keystore my-release-key.keystore GLXY.apk alias_name
-```
-5. Install the APK to your device:
-
-   You can do this manually, or with [adb](http://developer.android.com/tools/help/adb.html):
-
-   `$ adb install GLXY.apk`
+You can build this with Gradle or Android Studio.
 
 # Controls