Sorting a list based on another list's values

List<String> MyAppNameList = new ArrayList<String>();
List<String> MyAppList = new ArrayList<String>();
List<String> MyNewAppList = new ArrayList<String>();

MyAppNameList.add("7");
MyAppNameList.add("6");
MyAppNameList.add("2");
MyAppNameList.add("1");
MyAppNameList.add("3");
MyAppNameList.add("4");
MyAppNameList.add("5");
MyAppNameList.add("8");

MyAppList.add("app1");
MyAppList.add("app2");
MyAppList.add("app3");
MyAppList.add("app4");
MyAppList.add("app5");
MyAppList.add("app6");
MyAppList.add("app7");
MyAppList.add("app8");


Map<String, String> m = new TreeMap<String, String>();
for (int i = 0; i < MyAppNameList.size(); ++i)
m.put(MyAppNameList.get(i), MyAppList.get(i));
MyAppList.clear();
MyAppList.addAll(m.values());


for (int i = 0; i < MyAppNameList.size(); i++) {
Toast.makeText(getApplicationContext(), "" + MyAppList.get(i),
Toast.LENGTH_SHORT).show();
}