加入@ContentView注解，用于Activity，见sample。

Author: wyouflf

library/src/com/lidroid/xutils/ViewUtils.java

@@ -23,6 +23,7 @@
 import com.lidroid.xutils.util.LogUtils;
 import com.lidroid.xutils.util.core.DoubleKeyValueMap;
 import com.lidroid.xutils.view.*;
+import com.lidroid.xutils.view.annotation.ContentView;
 import com.lidroid.xutils.view.annotation.PreferenceInject;
 import com.lidroid.xutils.view.annotation.ResInject;
 import com.lidroid.xutils.view.annotation.ViewInject;
@@ -87,8 +88,18 @@ public static void inject(Object handler, PreferenceActivity preferenceActivity)
     @SuppressWarnings("ConstantConditions")
     private static void injectObject(Object handler, ViewFinder finder) {
 
+        Class<?> handlerType = handler.getClass();
+
+        // inject ContentView
+        if (Activity.class.isAssignableFrom(handlerType)) {
+            ContentView contentView = handlerType.getAnnotation(ContentView.class);
+            if (contentView != null) {
+                ((Activity) handler).setContentView(contentView.value());
+            }
+        }
+
         // inject view
-        Field[] fields = handler.getClass().getDeclaredFields();
+        Field[] fields = handlerType.getDeclaredFields();
         if (fields != null && fields.length > 0) {
             for (Field field : fields) {
                 ViewInject viewInject = field.getAnnotation(ViewInject.class);
@@ -134,7 +145,7 @@ private static void injectObject(Object handler, ViewFinder finder) {
         }
 
         // inject event
-        Method[] methods = handler.getClass().getDeclaredMethods();
+        Method[] methods = handlerType.getDeclaredMethods();
         if (methods != null && methods.length > 0) {
             String eventName = OnClick.class.getCanonicalName();
             String prefix = eventName.substring(0, eventName.lastIndexOf('.'));

library/src/com/lidroid/xutils/view/annotation/ContentView.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2013. wyouflf ([email protected])
+ *
+ * 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.lidroid.xutils.view.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface ContentView {
+    int value();
+}

sample/src/com/lidroid/xutils/sample/MyActivity.java

@@ -13,8 +13,10 @@
 import com.lidroid.xutils.sample.fragment.DbFragment;
 import com.lidroid.xutils.sample.fragment.HttpFragment;
 import com.lidroid.xutils.util.LogUtils;
+import com.lidroid.xutils.view.annotation.ContentView;
 import com.lidroid.xutils.view.annotation.ViewInject;
 
+@ContentView(R.layout.main)
 public class MyActivity extends FragmentActivity {
 
     @ViewInject(R.id.tabhost)
@@ -36,7 +38,6 @@ public class MyActivity extends FragmentActivity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        setContentView(R.layout.main);
 
         LogUtils.customTagPrefix = "xUtilsSample"; // 方便调试时过滤 adb logcat 输出
         LogUtils.allowI = false; //关闭 LogUtils.i(...) 的 adb log 输出