如何使用带有进度条的改造库？

Question

我正在使用改造库.如何在调用回调成功方法之前使用进度条？

public void getMovies() {

    MovieClient.getWeather().movies(MovieClient.getRandomMovie(), new Callback<MovieRequest>() {
        @Override
        public void success(MovieRequest movieRequest, Response response) {

            Picasso.with(getApplicationContext()).load(movieRequest.getPoster()).into(image);

        }

        @Override
        public void failure(RetrofitError error) {
            Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_SHORT).show();

        }
    });
}

Answer 1

你可以这样使用它:

public void getMovies() {

      ProgressDialog mProgressDialog = new ProgressDialog(this);
      mProgressDialog.setIndeterminate(true);
      mProgressDialog.setMessage("Loading...");
      mProgressDialog.show();
      MovieClient.getWeather().movies(MovieClient.getRandomMovie(), new Callback<MovieRequest>() {
      @Override
      public void success(MovieRequest movieRequest, Response response) {

         Picasso.with(getApplicationContext()).load(movieRequest.getPoster()).into(image);

         if (mProgressDialog.isShowing())
            mProgressDialog.dismiss();


    }

      @Override
      public void failure(RetrofitError error) {
          if (mProgressDialog.isShowing())
            mProgressDialog.dismiss();

          Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_SHORT).show();

      }
   });
}