android - .hprof 文件 android studio 中的 $ 是什么意思

Question

启动Gc后在android studio monitor中点击dump java heap，出现下图:

DialogFrag$1 类 DialogFrag 旁边的 $ 是什么意思？ (DialogFrag只是一个扩展Dialogfragment的类)

我应该只有这个类的一个实例，但正如您在 DialogFrag$1 旁边看到的那样，总数是 7，这是否意味着我有内存泄漏？

编辑:这是我的对话框 fragment 类

public class DialogFrag extends DialogFragment {
     AsyncTask<Void,Void,Void> asyncTask;


        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {


 AlertDialog.Builder alertdialog=new AlertDialog.Builder(getActivity());


            alertdialog.setTitle("Solution:");

            View view = getActivity().getLayoutInflater().inflate(R.layout.dialogfrag,null);

            final MyView myview= (MyView) view.findViewById(R.id.myview);
            myview.setVisibility(View.INVISIBLE);

   alertdialog.setView(view);

  asyncTask=new AsyncTask<Void, Void, Void>() {
                @Override
                protected void doInBackground(Void... voids) {
                     //compute something here 

               }

                @Override
                protected void onPostExecute(Void param) {
                    super.onPostExecute(param);

                                         getDialog().findViewById(R.id.progress).setVisibility(View.GONE);
                    myview.setVisibility(View.VISIBLE);
                }
            });


            asyncTask.execute();





            alertdialog.setPositiveButton("SHOW", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialogInterface, int i) {


                  if(!(asyncTask.getStatus()== AsyncTask.Status.FINISHED)){
                        asyncTask.cancel(true);
                    }

                    asyncTask=null;


                    dismiss();
                }
            });



            alertdialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialogInterface, int i) {

                    if(!(asyncTask.getStatus()== AsyncTask.Status.FINISHED)){
                        asyncTask.cancel(true);
                    }

                    asyncTask=null;
                    dismiss();
                }
            });


            Dialog dialog=alertdialog.create();
            dialog.getWindow().getAttributes().windowAnimations = R.style.MyDialogViewAnimation;

            return dialog;
        }


        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
            getDialog().getWindow().setGravity(Gravity.CENTER_HORIZONTAL | Gravity.TOP);
            getDialog().requestWindowFeature(Window.FEATURE_NO_TITLE);
            return super.onCreateView(inflater, container, savedInstanceState);
        }

Answer 1

what does the $ next to the class DialogFrag like in DialogFrag$1 means ?

$number 表示匿名内部类，例如 new View.OnClickListener() {...}。

but as you can see next to DialogFrag$1 the total count is 7 , does this mean i have memory leak?

也许，你 Handlebars 机旋转了七次？

请记住在适当的生命周期方法中注销监听器和 BroadcastReceiver。尽量避免使用静态字段。