About key-value data parsing and sorting in JsonObject (detailed tutorial)

The editor below will share with you an article about the key-value data parsing and sorting problem in JsonObject. It has a good reference value and I hope it will be helpful to everyone. Let’s follow the editor and take a look.

1. The data in JsonObject is in key-value form. The key is obtained through the keys method of JsonObject. The iterator is unordered, if you want to achieve sorting, you can currently only install a layer of processing (the method comes from Stack Overflow, thank you master) and put key-vlaue into ThreeMap sorting. The default sorting rule is alphabetical order, which can be modified by customizing the Comparator.

iteratorKeys = object.keys();//得到所有title 
  SortedMap map = new TreeMap(); 
  while (iteratorKeys.hasNext()) { 
      String key = iteratorKeys.next().toString(); 
      String vlaue = object.optString(key); 
      map.put(key, vlaue); 
  } 
  itemData = new LinkedList(map.values());

2. The above cannot be sorted in the order of the returned results, so the JsonObject key can be sorted by adding a, b, c, etc. in front of the key.

The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.

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