ProgressDialogAsyncTaskBase.java

package com.jobmineplus.mobile.widgets;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnCancelListener;

public abstract class ProgressDialogAsyncTaskBase<TParams, TProgress, TResult>
                            extends JbmnplsAsyncTaskBase<TParams, TProgress, TResult> implements OnCancelListener{
    private ProgressDialog progressDial;
    private String message;
    private boolean doDialog;

    public ProgressDialogAsyncTaskBase(Activity activity, String dialogueMessage) {
        super(activity);
        message = dialogueMessage;
        doDialog = true;
    }

    public ProgressDialogAsyncTaskBase(Activity activity, String dialogueMessage, boolean showDialog) {
        super(activity);
        message = dialogueMessage;
        doDialog = showDialog;
    }

    @Override
    public void attach(Activity activity) {
        super.attach(activity);
        if (isRunning()) {
            showProgress();
        }
    };

    @Override
    public void detach() {
        dismissProgress();
        super.detach();
    }

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        showProgress();
    };

    @Override
    protected void onPostExecute(TResult result) {
        super.onPostExecute(result);
        dismissProgress();
    };

    @Override
    protected void onCancelled() {
        super.onCancelled();
        dismissProgress();
    };

    public void onCancel(DialogInterface dialog) {
        this.cancel(true);
    }

    public void setMessage(String text) {
        message = text;
        if (progressDial != null) {
            progressDial.setMessage(text);
        }
    }

    public void showProgress() {
        if (doDialog) {
            progressDial = ProgressDialog.show(getActivity(), "", message, true, true, this);
        }
    }

    public void dismissProgress() {
        if (doDialog && progressDial != null && progressDial.isShowing()) {
            progressDial.dismiss();
            progressDial = null;
        }
    }

}