diff --git a/app/src/main/java/com/duolebo/blyrobot/MainActivity.kt b/app/src/main/java/com/duolebo/blyrobot/MainActivity.kt
index ce0912723af66e027b442b55bde5537442b2ee59..676feebc44a0b9deca23bc5b4d82adeb8571e47a 100644
--- a/app/src/main/java/com/duolebo/blyrobot/MainActivity.kt
+++ b/app/src/main/java/com/duolebo/blyrobot/MainActivity.kt
@@ -88,6 +88,10 @@ class MainActivity : AppCompatActivity(), IAppBaseCallback {
             this.appInfoAdapter.clear()
             requestAppList()
         }
+
+        clearBtn.setOnClickListener {
+            AppUtil.clearCache()
+        }
     }
 
     private fun start() {
diff --git a/app/src/main/java/com/duolebo/blyrobot/ui/AppConfigListItem.kt b/app/src/main/java/com/duolebo/blyrobot/ui/AppConfigListItem.kt
index df0479b5a3cfeb4843a93536d69a3ed352bf00c3..b5bd058510c14b4e1a81482d0b5ac5a1bb97629d 100644
--- a/app/src/main/java/com/duolebo/blyrobot/ui/AppConfigListItem.kt
+++ b/app/src/main/java/com/duolebo/blyrobot/ui/AppConfigListItem.kt
@@ -22,7 +22,7 @@ class AppConfigListItem(context: Context?) : RelativeLayout(context) {
         else if (!apkInfo.monitoring)
             tips = "(监播未启用)"
         this.appName.text = apkInfo.name + tips
-        this.packageName.text = apkInfo.packageName
+        this.packageName.text = "包名:${apkInfo.packageName}\t\t版本:" + AppUtil.getVersionName(context, apkInfo.packageName)
     }
 
     fun setIcon(drawable: Drawable) {
diff --git a/app/src/main/java/com/duolebo/blyrobot/util/AppUtil.kt b/app/src/main/java/com/duolebo/blyrobot/util/AppUtil.kt
index c2aefc7eb5d37fe31f81d9f3b815eded0ddcaef9..89b235df39974e49f18f22e0ca735c651e2c6a6c 100644
--- a/app/src/main/java/com/duolebo/blyrobot/util/AppUtil.kt
+++ b/app/src/main/java/com/duolebo/blyrobot/util/AppUtil.kt
@@ -14,9 +14,13 @@ import android.os.Build
 import android.os.Environment
 import java.util.regex.Pattern
 import android.app.ActivityManager.RunningAppProcessInfo
+import java.net.HttpURLConnection
 import java.nio.file.Files.delete
-
-
+import java.net.HttpURLConnection.HTTP_OK
+import java.net.HttpURLConnection.setFollowRedirects
+import java.net.URL
+import android.R.attr.versionName
+import android.content.pm.PackageInfo
 
 
 
@@ -224,4 +228,43 @@ object AppUtil {
             e.printStackTrace()
         }
     }
+
+    fun exists(url: String): Boolean {
+        return try {
+            HttpURLConnection.setFollowRedirects(false)
+            val con = URL(url).openConnection() as HttpURLConnection
+            con.requestMethod = "HEAD"
+            con.responseCode == HttpURLConnection.HTTP_OK
+        } catch (e: Exception) {
+            e.printStackTrace()
+            false
+        }
+    }
+
+    fun getVersionName(context: Context, packageName: String): String {
+        val manager = context.packageManager
+        var name = ""
+        try {
+            val info = manager.getPackageInfo(packageName, 0)
+            name = info.versionName
+        } catch (e: PackageManager.NameNotFoundException) {
+            e.printStackTrace()
+        }
+
+        return name
+    }
+
+    fun clearCache() {
+        val path = getAbsoluteSdcardPath() + "/upload/"
+        val dir = File(path)
+        if (dir.exists()) {
+            for (subDir in dir.listFiles()) {
+                if (subDir.isDirectory) {
+                    for (file in subDir.listFiles()) {
+                        file.delete()
+                    }
+                }
+            }
+        }
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 5e4fc1402e669192c38f9324b37fa5fa86745f07..0e47214b34150b4ea77ef147d1e5fbb208ca642c 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -40,6 +40,13 @@
             android:layout_height="wrap_content"
             android:layout_marginLeft="10dp"
             android:text="刷新应用列表"/>
+
+        <Button
+            android:id="@+id/clearBtn"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="10dp"
+            android:text="清除缓存"/>
     </LinearLayout>
 
     <ListView