1 files changed, 90 insertions, 0 deletions
diff --git a/tools/layoutlib/create/src/com/android/tools/layoutlib/create/SimpleMonthViewAdapter.java b/tools/layoutlib/create/src/com/android/tools/layoutlib/create/SimpleMonthViewAdapter.java
new file mode 100644
index 0000000..49fd456
--- /dev/null
+++ b/tools/layoutlib/create/src/com/android/tools/layoutlib/create/SimpleMonthViewAdapter.java
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.tools.layoutlib.create;
+
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.FieldVisitor;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.Type;
+
+import java.text.SimpleDateFormat;
+
+import static com.android.tools.layoutlib.create.AsmGenerator.binaryToInternalClassName;
+
+/**
+ * A very ugly hack to transform all references to {@link java.text.SimpleDateFormat} in {@code
+ * android.widget.SimpleMonthView} to {@code com.ibm.icu.text.SimpleDateFormat}.
+ */
+public class SimpleMonthViewAdapter extends ClassVisitor {
+
+    private static final String JAVA_SDF_DESC = Type.getDescriptor(SimpleDateFormat.class);
+    private static final String JAVA_SDF_INTERNAL_NAME =
+            binaryToInternalClassName(SimpleDateFormat.class.getName());
+    private static final String ICU_SDF_INTERNAL_NAME = "com/ibm/icu/text/SimpleDateFormat";
+
+    public SimpleMonthViewAdapter(ClassVisitor cv) {
+        super(Opcodes.ASM4, cv);
+    }
+
+    @Override
+    public FieldVisitor visitField(int access, String name, String desc, String signature,
+            Object value) {
+        if (JAVA_SDF_DESC.equals(desc)) {
+            desc = "L" + ICU_SDF_INTERNAL_NAME + ";";
+        }
+        return super.visitField(access, name, desc, signature, value);
+    }
+
+    @Override
+    public MethodVisitor visitMethod(int access, String name, String desc, String signature,
+            String[] exceptions) {
+        return new MyMethodVisitor(super.visitMethod(access, name, desc, signature, exceptions));
+    }
+
+    private static class MyMethodVisitor extends MethodVisitor {
+        public MyMethodVisitor(MethodVisitor mv) {
+            super(Opcodes.ASM4, mv);
+        }
+
+        @Override
+        public void visitTypeInsn(int opcode, String type) {
+            if (JAVA_SDF_INTERNAL_NAME.equals(type) && opcode == Opcodes.NEW) {
+                type = ICU_SDF_INTERNAL_NAME;
+            }
+            super.visitTypeInsn(opcode, type);
+        }
+
+        @Override
+        public void visitMethodInsn(int opcode, String owner, String name, String desc) {
+            if (JAVA_SDF_INTERNAL_NAME.equals(owner)) {
+                owner = ICU_SDF_INTERNAL_NAME;
+            }
+            super.visitMethodInsn(opcode, owner, name, desc);
+        }
+
+        @Override
+        public void visitFieldInsn(int opcode, String owner, String name, String desc) {
+            if (JAVA_SDF_DESC.equals(desc) &&
+                    (opcode == Opcodes.PUTFIELD || opcode == Opcodes.GETFIELD) &&
+                    name.equals("mDayFormatter")) {
+                desc = "L" + ICU_SDF_INTERNAL_NAME + ";";
+            }
+            super.visitFieldInsn(opcode, owner, name, desc);
+        }
+    }
+}