我正在开发必须在活动之间滑动的应用程序,然后在特定的活动类上我必须放置一个列表,并且列表必须显示一个菜单,它也完成了;我面临的问题是我得到了我的应用程序运行时控制台上出现此消息:-I/Choreographer(): Skipped 77 frames!应用程序可能在其主线程上做了太多工作。我之前也被告知要添加 AsyncTask,但它似乎没有那么有帮助,但我知道只有这样我才能纠正这个问题,我无法理解任何事情。
公共类 TabFragmentClass 扩展片段 {
DisplayMetrics metrics;
ListView list_view=null;
Animation animation=null;
int mode=R.id.TranslateAnimation1;
ArrayList<String> ar_li;
@Override
public void onStart() {
setHasOptionsMenu(true);
super.onStart();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_main,null);
metrics=new DisplayMetrics();
getActivity().getWindowManager().getDefaultDisplay().getMetrics(metrics);
list_view=(ListView) view.findViewById(R.id.list_view);
list_view.setFadingEdgeLength(0);
new NewClass().execute();
return view;
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.activity_main, menu);
menu.add(Menu.NONE,1,0,"TranslateAnimation1");
menu.add(Menu.NONE, 2, 0, "TranslateAnimation2");
menu.add(Menu.NONE, 3, 0, "ScaleAnimation");
menu.add(Menu.NONE, 4, 0, "fade_in");
menu.add(Menu.NONE, 5, 0, "hyper_space_out");
menu.add(Menu.NONE, 6, 0, "wave_scale");
menu.add(Menu.NONE, 7, 0, "push_left_in");
menu.add(Menu.NONE, 8, 0, "push_left_out");
menu.add(Menu.NONE, 9, 0, "push_up_in");
menu.add(Menu.NONE, 10, 0, "push_up_out");
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
mode=item.getItemId();
return super.onOptionsItemSelected(item);
}
@Override
public void setHasOptionsMenu(boolean hasMenu) {
super.setHasOptionsMenu(hasMenu);
}
class NewClass extends AsyncTask<String, String, ArrayList<String>>
{
View convertView;
@Override
protected void onPreExecute() {
ProgressDialog dialog=new ProgressDialog(getActivity());
dialog.setMessage("List loading...");
dialog.show();
}
@Override
protected ArrayList<String> doInBackground(String... params) {
ar_li=new ArrayList<String>();
for(int i=0;i<100;i++)
{
ar_li.add("item: "+(i+1));
}
return ar_li;
}
@Override
protected void onPostExecute(ArrayList<String> result) {
MainAdapter mAdapter=new MainAdapter(getActivity(),ar_li,metrics);
list_view.setAdapter(mAdapter);
}
}}