Android Open Source - SocketTest Main Activity

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License

The source code is released under:

MIT License

Java Source Code

package com.talsockettest;
/* w  w  w . j ava 2s . c o  m*/
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.TextView;

public class MainActivity extends Activity {
  private ImageDownloadTask diTask;

  @SuppressWarnings("deprecation")
  @Override
  public void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // The following checks to see if we're restarting with a backgrounded
    // AsyncTask. If so, re-establish the connection. Also, since the image
    // did not get saved across the destroy/create cycle, if the AsyncTask
    // has finished, grab the downloaded image again from the AsyncTask.
    if( (diTask = (ImageDownloadTask)getLastNonConfigurationInstance()) != null) {
      diTask.setContext(this);  // Give my AsyncTask the new Activity reference
      if(diTask.getStatus() == AsyncTask.Status.FINISHED)
        diTask.setImageInView();
    }
  }

  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 ImageDownloadTask(this);
    TextView t = (TextView)this.findViewById(R.id.editText1);

    try{
      diTask.execute(Uri.parse(t.getText().toString()).toString());
    }
    catch(Exception e){
      e.printStackTrace();
      TextView err = (TextView)this.findViewById(R.id.error_text);
      err.setText(e.getMessage());
    }
    //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");
  }

  // This gets called before onDestroy(). We want to pass forward a reference
  // to our AsyncTask.
  @Override
  public Object onRetainNonConfigurationInstance() {
    return diTask;
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.activity_main, menu);
    return true;
  }

}

Java Source Code List

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