创建 vcs.xml

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

app/src/main/java/iku/os/net/taskInfo.java

@@ -78,12 +78,4 @@ public class taskInfo {
             Log.e(TAG, "Error downloading file: ", e);
         }
     }
-
-    public static boolean downloadGoBack(){
-        if (completed == true){
-            return completed;
-        }
-        return false;
-    }
-
 }