diff --git a/source/src/cn/eoe/app/ui/DetailsActivity.java b/source/src/cn/eoe/app/ui/DetailsActivity.java
index d90181d..bf1decc 100644
--- a/source/src/cn/eoe/app/ui/DetailsActivity.java
+++ b/source/src/cn/eoe/app/ui/DetailsActivity.java
@@ -70,6 +70,8 @@ public class DetailsActivity extends BaseActivity implements OnClickListener {
     private DetailDB mDetailDB;
     private String mKey;
     private int mDBID = -1;
+    
+    private AsyncTask<Void, Void, Void> initAppraiseTask;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -85,7 +87,13 @@ protected void onCreate(Bundle savedInstanceState) {
         mKey = sharePre.getString(UserLoginUidActivity.KEY, "");
         initData();
         initControl();
-        initAppraise();
+        initAppraiseTask = new AsyncTask<Void, Void, Void>() {
+            @Override
+            protected Void doInBackground(Void... params) {
+                initAppraise();
+                return null;
+            }
+        }.execute();
     }
 
     private void initData() {
@@ -193,16 +201,32 @@ protected void onPause() {
         if (mKey.equals(null) && mKey.equals("")) {
             return;
         }
-        if (mDBID == -1 && (IsGood || IsBed || IsCollect)) {
-            // 添加
-            mDetailDB.insertSQL(mUrl, mKey, IsGood ? 1 : 0, IsBed ? 1 : 0,
-                    IsCollect ? 1 : 0);
-        } else if (mDBID != -1) {
-            // 修改
-            mDetailDB.updateSQL(mDBID, IsGood ? 1 : 0, IsBed ? 1 : 0,
-                    IsCollect ? 1 : 0);
-        }
-        mDetailDB.dbClose();
+        new AsyncTask<Void, Void, Void>() {
+            @Override
+            protected void onPreExecute() {
+                // synchronize with initAppraiseTask
+                try {
+                    initAppraiseTask.get();
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+            }
+            
+            @Override
+            protected Void doInBackground(Void... params) {
+                if (mDBID == -1 && (IsGood || IsBed || IsCollect)) {
+                    // 添加
+                    mDetailDB.insertSQL(mUrl, mKey, IsGood ? 1 : 0, IsBed ? 1 : 0,
+                            IsCollect ? 1 : 0);
+                } else if (mDBID != -1) {
+                    // 修改
+                    mDetailDB.updateSQL(mDBID, IsGood ? 1 : 0, IsBed ? 1 : 0,
+                            IsCollect ? 1 : 0);
+                }
+                mDetailDB.dbClose();
+                return null;
+            }
+        }.execute();
     }
 
     class MyTask extends AsyncTask<String, Integer, String> {
@@ -277,6 +301,14 @@ public void onClick(View v) {
             showLongToast(getResources().getString(R.string.user_login_prompt));
             return;
         }
+        
+        // synchronize with initAppraiseTask
+        try {
+            initAppraiseTask.get();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        
         String url = null;
         switch (v.getId()) {
             case R.id.rlGood:
diff --git a/source/src/cn/eoe/app/utils/ImageUtil.java b/source/src/cn/eoe/app/utils/ImageUtil.java
index df9bd30..f2fa428 100644
--- a/source/src/cn/eoe/app/utils/ImageUtil.java
+++ b/source/src/cn/eoe/app/utils/ImageUtil.java
@@ -20,9 +20,11 @@
 import android.graphics.BitmapFactory;
 import android.graphics.BitmapFactory.Options;
 import android.graphics.Rect;
+import android.os.AsyncTask;
 import android.os.Build;
 import android.os.Environment;
 import android.os.Handler;
+import android.os.Looper;
 import android.os.Message;
 import android.util.Log;
 import android.widget.ImageView;
@@ -116,16 +118,24 @@ public static boolean hasExternalCacheDir() {
 	private static void setThumbnailImage(ImageView view, String imageUrl,
 			String cachePath, DBHelper dbHelper, ImageCallback callback,
 			boolean b) {
-		Bitmap bitmap = null;
-		bitmap = ImageUtil.loadThumbnailImage(cachePath, imageUrl, dbHelper,
-				callback, b);
-		if (bitmap == null) {// 先查找数据库，再查找本地sd卡,若没有.再从网站加载，若网站上没有图片或错误时返回null
-			// 设置默认图片
-			view.setImageResource(Default_Img);
-		} else {
-			// 设置本地SD卡缓存图片
-			view.setImageBitmap(bitmap);
-		}
+		new AsyncTask<Void, Void, Bitmap>() {
+			@Override
+			protected Bitmap doInBackground(Void... params) {
+				return ImageUtil.loadThumbnailImage(cachePath, imageUrl, dbHelper,
+						callback, b);
+			}
+			
+			@Override
+			protected void onPostExecute(Bitmap bitmap) {
+				if (bitmap == null) {// 先查找数据库，再查找本地sd卡,若没有.再从网站加载，若网站上没有图片或错误时返回null
+					// 设置默认图片
+					view.setImageResource(Default_Img);
+				} else {
+					// 设置本地SD卡缓存图片
+					view.setImageBitmap(bitmap);
+				}
+			}
+		}.execute();
 	}
 
 	private static Bitmap getImageFromDB(String imagePath, String imageUrl,
@@ -297,7 +307,7 @@ public static Bitmap loadThumbnailImage(final String imagePath,
 			return bitmap;
 		} else {
 			// 从网上加载
-			final Handler handler = new Handler() {
+			final Handler handler = new Handler(Looper.getMainLooper()) {
 				@Override
 				public void handleMessage(Message msg) {
 					if (msg.obj != null) {