ADT #1825491: Provide default choices for <uses-library>

We currently hardcode a list in the PlatformTarget and propagate
it to the UI via the AndroidTargetParser. This way we can later
decide to actually get the info from some kind of manifest.

tools/sdkmanager/libs/sdklib/src/com/android/sdklib/AddOnTarget.java

@@ -192,6 +192,15 @@ final class AddOnTarget implements IAndroidTarget {
         return mLibraries;
     }
     
+    /**
+     * Returns the list of libraries of the underlying platform.
+     * 
+     * {@inheritDoc}
+     */
+    public String[] getPlatformLibraries() {
+        return mBasePlatform.getPlatformLibraries();
+    }
+    
     public boolean isCompatibleBaseFor(IAndroidTarget target) {
         // basic test
         if (target == this) {

tools/sdkmanager/libs/sdklib/src/com/android/sdklib/IAndroidTarget.java

@@ -149,7 +149,14 @@ public interface IAndroidTarget extends Comparable<IAndroidTarget> {
      * @return an array of optional libraries or <code>null</code> if there is none.
      */
     IOptionalLibrary[] getOptionalLibraries();
-    
+
+    /**
+     * Returns the list of libraries available for a given platform.
+     * 
+     * @return an array of libraries provided by the platform or <code>null</code> if there is none.
+     */
+    String[] getPlatformLibraries();
+
     /**
      * Returns whether the given target is compatible with the receiver.
      * <p/>A target is considered compatible if applications developed for the receiver can run on

tools/sdkmanager/libs/sdklib/src/com/android/sdklib/PlatformTarget.java

@@ -149,15 +149,25 @@ final class PlatformTarget implements IAndroidTarget {
         return "HVGA";
     }
 
-    /*
-     * Always returns null, as a standard platforms have no optional libraries.
+    /**
+     * Always returns null, as a standard platform ha no optional libraries.
      * 
-     * (non-Javadoc)
+     * {@inheritDoc}
      * @see com.android.sdklib.IAndroidTarget#getOptionalLibraries()
      */
     public IOptionalLibrary[] getOptionalLibraries() {
         return null;
     }
+
+    /**
+     * Currently always return a fixed list with "android.test.runner" in it.
+     * <p/>
+     * TODO change the fixed library list to be build-dependent later.
+     * {@inheritDoc}
+     */
+    public String[] getPlatformLibraries() {
+        return new String[] { SdkConstants.ANDROID_TEST_RUNNER_LIB };
+    }
     
     public boolean isCompatibleBaseFor(IAndroidTarget target) {
         // basic test

tools/sdkmanager/libs/sdklib/src/com/android/sdklib/SdkConstants.java

@@ -167,6 +167,9 @@ public final class SdkConstants {
     /** Namespace for the resource XML, i.e. "http://schemas.android.com/apk/res/android" */
     public final static String NS_RESOURCES = "http://schemas.android.com/apk/res/android";
 
+    /** The name of the uses-library that provides "android.test.runner" */
+    public final static String ANDROID_TEST_RUNNER_LIB = "android.test.runner";
+    
     /* Folder path relative to the SDK root */
     /** Path of the documentation directory relative to the sdk folder.
      *  This is an OS path, ending with a separator. */