Layoutlib: Load fragments

This change does the following:
- Make the bridge context extend Activity instead of Context
so that it can act as a view factory. This is needed because
the Activity is used as factory for Fragment objects.

- Override the default Fragment.instantiate(...) method
through a delegate. This is done to load the Fragment
classes located in the project (similar to custom views).

Change-Id: If62e7c9ff2b7585677077ad825aa1c3591d1b5e0

2 files changed, 5 insertions, 1 deletions

diff --git a/tools/layoutlib/create/src/com/android/tools/layoutlib/create/CreateInfo.java b/tools/layoutlib/create/src/com/android/tools/layoutlib/create/CreateInfo.java
index 8e05c31..1c95400 100644
--- a/tools/layoutlib/create/src/com/android/tools/layoutlib/create/CreateInfo.java
+++ b/tools/layoutlib/create/src/com/android/tools/layoutlib/create/CreateInfo.java
@@ -94,6 +94,7 @@ public final class CreateInfo implements ICreateInfo {
      * The list of methods to rewrite as delegates.
      */
     private final static String[] DELEGATE_METHODS = new String[] {
+        "android.app.Fragment#instantiate", //(Landroid/content/Context;Ljava/lang/String;Landroid/os/Bundle;)Landroid/app/Fragment;",
         // TODO: comment out once DelegateClass is working
         // "android.view.View#isInEditMode",
         // "android.content.res.Resources$Theme#obtainStyledAttributes",
diff --git a/tools/layoutlib/create/src/com/android/tools/layoutlib/create/Main.java b/tools/layoutlib/create/src/com/android/tools/layoutlib/create/Main.java
index 43f2971..ce48069 100644
--- a/tools/layoutlib/create/src/com/android/tools/layoutlib/create/Main.java
+++ b/tools/layoutlib/create/src/com/android/tools/layoutlib/create/Main.java
@@ -66,7 +66,10 @@ public class Main {
             AsmGenerator agen = new AsmGenerator(log, osDestJar[0], new CreateInfo());
 
             AsmAnalyzer aa = new AsmAnalyzer(log, osJarPath, agen,
-                    new String[] { "android.view.View" },   // derived from
+                    new String[] {                          // derived from
+                        "android.view.View",
+                        "android.app.Fragment"
+                    },
                     new String[] {                          // include classes
                         "android.*", // for android.R
                         "android.util.*",