Android的数组列表排序按属性 [英] Android sort arraylist by properties
本文介绍了Android的数组列表排序按属性的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想通过一个属性的的ArrayList
排序。这是我的code ...
I want to sort an ArrayList
by a property. This is my code...
public class FishDB{
public static Object Fish;
public ArrayList<Fish> list = new ArrayList<Fish>();
public class Fish{
String name;
int length;
String LatinName;
//etc.
public Vis (String name) {
this.name = name;
}
}
public FishDB() {
Fish fish;
fish = new Fish("Shark");
fish.length = 200;
fish.LatinName = "Carcharodon Carcharias";
fish = new Fish("Rainbow Trout");
fish.length = 80;
fish.LatinName = "Oncorhynchus Mykiss";
//etc.
}
}
}
现在我想在想在其他活动如 latinname
属性该的ArrayList
排序。但我不知道该怎么做。有谁知道怎么样?
Now I want in want to sort this ArrayList
by a property e.g the latinname
in another activity. But I don't know how to do that. Does anybody know how?
推荐答案
您需要实现比较
,例如:
public class FishNameComparator implements Comparator<Fish>
{
public int compare(Fish left, Fish right) {
return left.name.compareTo(right.name);
}
}
,然后排序是这样的:
and then sort it like this:
Collections.sort(fishes, new FishNameComparator());
这篇关于Android的数组列表排序按属性的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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