DownloadAsyncTaskForRotateActivity.java

package com.google.mcommerce.sample.android.chapter06.asyncTask;

import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;

import com.google.mcommerce.sample.android.R;

public class DownloadAsyncTaskForRotateActivity extends Activity {
	private DownloadImageTask diTask;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.c06_async_task_download);
	}

	public void doClick(View view) {
		if (diTask != null) {
			AsyncTask.Status diStatus = diTask.getStatus();
			Log.v("doClick", "diTask status is " + diStatus);
			if (diStatus != AsyncTask.Status.FINISHED) {
				Log.v("doClick", "... no need to start a new task");
				return;
			}
			// Since diStatus must be FINISHED, we can try again.
		}
		diTask = new DownloadImageTask(this);
		diTask.execute("http://chart.apis.google.com/chart?&cht=p&chs=460x250&chd=t:15.3,20.3,0.2,59.7,4.5&chl=Android%201.5%7CAndroid%201.6%7COther*%7CAndroid%202.1%7CAndroid%202.2&chco=c4df9b,6fad0c");
	}
}