Android Open Source - 2014-Droid-code Activity4

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License

The source code is released under:

GNU General Public License

Java Source Code

package cs518.sample.multiactivity;
/*w w w  .  j  av  a 2s.co m*/
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import android.content.Intent;

/*
 * This class receives data returns data and it returns a result
 */
public class Activity4 extends Activity {
  private int counter = 0;
  private TextView tv2;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity4);
    // get the data from the Activity that fired this intent
    String value1 = getIntent().getExtras().getString(Constants.KEY3);
    TextView tv1 = (TextView) findViewById(R.id.datatv1);
    tv2 = (TextView) findViewById(R.id.datatv2);
    if (value1 != null) {
      Activity1.logIt(value1);
      tv1.setText(value1);
    } else {
      tv1.setText("no data received from invoking activity ");
    }

  } // onCreate

  public void countNow(View v) {
    counter++;
    tv2.setText(Integer.toString(counter));
  }
/*
 * Note this onPause() sets a result of ok
 * however since we rely on the back button to return to the caller
 * whenever the back button is hit is sends a cancel, note the data is ok 
 * but the result is cancel
 * 
 * (non-Javadoc)
 * @see android.app.Activity#onPause()
 *   public void onPause() {
    // set up a new Intent
    Intent i = new Intent();
    i.putExtra(Constants.KEY4, counter);
    setResult(RESULT_OK, i);
    super.onPause(); 
  }

 */
  @Override
  public void finish() {
    // set up a new Intent
    Intent i = new Intent();
    i.putExtra(Constants.KEY4, counter);
    setResult(RESULT_OK, i);  
    super.finish(); 
  }
} // class

Java Source Code List

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