Collections.sort对数组进行排序

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Collections.sort(countType, new Comparator<Map<String, String>>() {
           @Override
           public int compare(Map<String, String> o1, Map<String, String> o2) {
               String occupy1 = o1.get("occupy");
               String substring1 = occupy1.substring(occupy1.indexOf("{") + 1, occupy1.length() - 1);
               String occupy2 = o2.get("occupy");
               String substring2 = occupy2.substring(occupy2.indexOf("{") + 1, occupy2.length() - 1);
               int m1 = Integer.parseInt(substring1);
               int m2 = Integer.parseInt(substring2);
               if (m1 > m2) {
                   //m1在m2后面
                   return 1;
               } else if (m1 < m2) {
                   //m1在m2前面
                   return -1;
               } else {
                   Toast.makeText(FYInspecRequireActivity.this, "返回数据存在问题，occupy有相同的，我无法解析", Toast.LENGTH_SHORT).show();
                   return 0;
               }
           }
});