优化

app/src/main/java/com/shuwei/intelligent/shelves/net/LoadingDialog.kt

@@ -17,6 +17,7 @@ object Loading {
     private var dialog: LoadingDialog? = null
 
     fun show(activity: Activity) {
+        try {
             if (activity.isFinishing || activity.isDestroyed) {
                 return
             }
@@ -27,15 +28,22 @@ object Loading {
                 dialog = LoadingDialog(activity)
             }
             dialog?.show()
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
     }
 
     fun dismiss() {
+        try {
             dialog?.let {
                 if (it.isShowing) {
                     it.dismiss()
                 }
             }
             dialog = null
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
     }
 
 }