ActivityWithProgressDialog.java

package com.juanpabloprado.ui.activity;

import android.app.ProgressDialog;
import android.support.v7.app.AppCompatActivity;

public abstract class ActivityWithProgressDialog extends AppCompatActivity {

  private ProgressDialog mProgressDialog;

  public void showProgressDialog() {
    mProgressDialog =
        ProgressDialog.show(this, null, getString(R.string.progress_dialog_loading), true, false);
  }

  public void hideProgressDialog() {
    if (mProgressDialog != null && mProgressDialog.isShowing()) {
      mProgressDialog.dismiss();
    }
  }
  
}