diff --git a/src/appmanagerwidget.cpp b/src/appmanagerwidget.cpp
index 021046eafa0222e0aaf83f6b75d513a3f2b13bea..5c4cfac0e827b1caddc8a2f89bd4599449d5eed2 100644
--- a/src/appmanagerwidget.cpp
+++ b/src/appmanagerwidget.cpp
@@ -518,7 +518,8 @@ void AppManagerWidget::showAppInfo(const AppInfo &info)
         }
 
         // 根据版本找到候选包中对应的包大小和下载地址
-        if (m_showingAppInfo.installedPkgInfo.version == srvPkgInfo.version) {
+        if (m_showingAppInfo.installedPkgInfo.version == srvPkgInfo.version
+                && m_showingAppInfo.installedPkgInfo.arch == srvPkgInfo.arch) {
             m_showingAppInfo.installedPkgInfo.pkgSize = srvPkgInfo.pkgSize;
             m_showingAppInfo.installedPkgInfo.downloadUrl = srvPkgInfo.downloadUrl;
         }
diff --git a/src/job/appmanagerjob.cpp b/src/job/appmanagerjob.cpp
index 1d49e59275909757a51a5239743eac7046fac666..b7f1c9b4799cf37faff5b945ecc784765dcb0197 100644
--- a/src/job/appmanagerjob.cpp
+++ b/src/job/appmanagerjob.cpp
@@ -15,28 +15,6 @@
 #include <zlib.h>
 #include <aio.h> // async I/O
 
-int zlibCompress(char *dest, int &destLen,
-                 char *source, int sourceLen)
-{
-    unsigned char *dest1 = reinterpret_cast<unsigned char *>(dest);
-    unsigned long destLen1 = static_cast<unsigned long>(destLen);
-    unsigned char *source1 = reinterpret_cast<unsigned char *>(source);
-    unsigned long sourceLen1 = static_cast<unsigned long>(sourceLen);
-
-    return (compress(dest1, &destLen1, source1, sourceLen1));
-}
-
-int zlibUncompress(char *dest, int &destLen,
-                   char *source, int sourceLen)
-{
-    unsigned char *dest1 = reinterpret_cast<unsigned char *>(dest);
-    unsigned long destLen1 = static_cast<unsigned long>(destLen);
-    unsigned char *source1 = reinterpret_cast<unsigned char *>(source);
-    unsigned long sourceLen1 = static_cast<unsigned long>(sourceLen);
-
-    return (uncompress(dest1, &destLen1, source1, sourceLen1));
-}
-
 enum ComPressError {
     Ok = 0,
     Fail = -1