问题描述

progress dialog不显示

private Button.OnClickListener mFinalClickListener = new Button.OnClickListener() {    public void onClick(View v) {        if (Utils.isMonkeyRunning()) {            return;        }        final PersistentDataBlockManager pdbManager = (PersistentDataBlockManager)                getActivity().getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE);        if (pdbManager != null && !pdbManager.getOemUnlockEnabled()) {            // if OEM unlock is enabled this will be wiped during FR process.            final ProgressDialog progressDialog = getProgressDialog();            progressDialog.show();                          // need to prevent orientation changes as we're about to go into            // a long IO request so we won't be able to access inflate resources on flash            final int oldOrientation = getActivity().getRequestedOrientation();            getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LOCKED);            new AsyncTask<Void Void Void>() {                   @Override                protected Void doInBackground(Void... params) {                    pdbManager.wipe();                                                                                                                  return null;                }                @Override                protected void onPostExecute(Void aVoid) {                    progressDialog.hide();                    getActivity().setRequestedOrientation(oldOrientation);                              doMasterClear();                }            }.execute();        } else {            doMasterClear();        }    }    private ProgressDialog getProgressDialog() {        final ProgressDialog progressDialog = new ProgressDialog(getActivity());        progressDialog.setIndeterminate(true);        progressDialog.setCancelable(false);        progressDialog.setTitle(                getActivity().getString(R.string.master_clear_progress_title));        progressDialog.setMessage(                getActivity().getString(R.string.master_clear_progress_text));        return progressDialog;    }}    以上的代码是5.1.1版本恢复出厂设置的代码，现在会走 new AsyncTask<Void Void Void>()这里的代码，运行pdbManager.wipe();  问题是：progressDialog.show()有时候会显示进度对话框，有时候不显示，有时候显示的时间长，有时候时间短，关于为什么不显示对话框，有人帮忙解释一下吗？请教该如何修改，才能保证会显示呢？

解决方案

Universal Progress Dialog

解决方案二：
应该是onPostExecute中的hide直接给隐藏了