有时候我们需要多列表中的数据进行特定的排序,最近项目中用到的是按名称排序,所以简单来说一下:
效果图:
排序方法:
Collections.sort(students, new SortChineseName());for (Student s : students) {Log.e("David", "名称正序排列:" + s.getName());}Log.d("David", "---------------------------------------");Collections.reverse(students);for (Student s : students) {Log.e("David", "名称倒序排列(一):" + s.getName());}Log.d("David", "---------------------------------------");Collections.sort(students, Collections.reverseOrder(new SortChineseName()));for (Student s : students) {Log.e("David", "名称倒序排列(二):" + s.getName());}
sort方法
class SortChineseName implements Comparator<ResolveInfo> {/*** create by Davide* 参数说明:* ResolveInfo 为你的List集合中的类-我这里为 android系统中apk信息类*/private Context mContext;//构造-传进来context对象public SortChineseName(Context mContext) {this.mContext = mContext;}Collator cmp = Collator.getInstance(java.util.Locale.CHINA);@Overridepublic int compare(ResolveInfo info1, ResolveInfo info2) {String apkName1 = info1.loadLabel(mContext.getPackageManager()).toString();String apkName2 = info2.loadLabel(mContext.getPackageManager()).toString();/***create by Davide*开始比较-我这儿按照apk的名称排序,便获取apkName*/if (pare(apkName1, apkName2) > 0) {return 1;} else if (pare(apkName1, apkName2) < 0) {return -1;}return 0;}}
end
@Auther: David
@email :david.forever.god@
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