在searchview android中添加进度条

Question

这是我在活动中使用的代码。

@Override
public void onReceive(Context context, Intent intent) {
    String action = intent.getAction();
    if (DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals(action)) {

        // get the DownloadManager instance
        DownloadManager manager = (DownloadManager) context.getSystemService(Context.DOWNLOAD_SERVICE);

        DownloadManager.Query q = new DownloadManager.Query();
        Cursor c = manager.query(q);

        if(c.moveToFirst()) {
            do {
                String name = c.getString(c.getColumnIndex(DownloadManager.COLUMN_LOCAL_FILENAME));
                Log.i("DOWNLOAD LISTENER", "file name: " + name);
            } while (c.moveToNext());
        } else {
            Log.i("DOWNLOAD LISTENER", "empty cursor :(");
        }

        c.close();
    }
}

在preExecute我正在使用

    $('#cancel-feedback, #feedback-dialogs .icon-close, #feedbackCloseAfter').click(function (e) {
    closeDialog();
});

在postexecute我正在使用

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().requestFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
    setContentView(com.c2info.eDawa.R.layout.hll_layout);
    AppController.logite("Activity", "HllActivity");
    final Toolbar toolbar = (Toolbar) findViewById(com.c2info.eDawa.R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayShowHomeEnabled(true);
    getSupportActionBar().setIcon(R.mipmap.app_launcher);
}

  @Override
public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater menuInflater = getMenuInflater();
    menuInflater.inflate(com.c2info.eDawa.R.menu.menu_hll, menu);
    final MenuItem searchItem = menu.findItem(com.c2info.eDawa.R.id.action_search);
    searchView = (SearchView) MenuItemCompat.getActionView(searchItem);
    searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
        @Override
        public boolean onQueryTextSubmit(String query) {
            if (searchView != null)
                searchView.clearFocus();
            return true;
        }

        @Override
        public boolean onQueryTextChange(String newText) {
            if (newText.length() > 2) {
                getSearchData(newText);                     // this is the service
            }
            }
            return false;
        }
    });
    return super.onCreateOptionsMenu(menu);
}

但是进度条没有显示任何人都可以提供帮助。提前谢谢。