ActivityLoaderActivity

package course.labs.intentslab;

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class ActivityLoaderActivity extends Activity {

    static private final int REQUEST_CODE = 1;
    static private final String URL = "http://www.google.com";
    static private final String TAG = "Lab-Intents";

    // For use with app chooser
    static private final String CHOOSER_TEXT = "Load " + URL + " with:";

    // TextView that displays user-entered text from ExplicitlyLoadedActivity runs
    private TextView mUserTextView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_loader_activity);

        // Get reference to the textView
        mUserTextView = (TextView) findViewById(R.id.textView1);

        // Declare and setup Explicit Activation button
        Button explicitActivationButton = (Button) findViewById(R.id.explicit_activation_button);
        explicitActivationButton.setOnClickListener(new OnClickListener() {

            // Call startExplicitActivation() when pressed
            @Override
            public void onClick(View v) {
                startExplicitActivation();
            }
        });

        // Declare and setup Implicit Activation button
        Button implicitActivationButton = (Button) findViewById(R.id.implicit_activation_button);
        implicitActivationButton.setOnClickListener(new OnClickListener() {

            // Call startImplicitActivation() when pressed
            @Override
            public void onClick(View v) {
                startImplicitActivation();
            }
        });
    }


    // Start the ExplicitlyLoadedActivity

    private void startExplicitActivation() {
        Log.i(TAG,"Entered startExplicitActivation()");

        Intent explicitIntent = new Intent(getApplicationContext(), ExplicitlyLoadedActivity.class);
        startActivityForResult(explicitIntent, REQUEST_CODE);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        Log.i(TAG, "Entered onActivityResult()");

        if (requestCode == REQUEST_CODE && resultCode == Activity.RESULT_OK)
            mUserTextView.setText(data.getStringExtra("string"));
    }

    // Start a Browser Activity to view a web page or its URL

    private void startImplicitActivation() {
        Log.i(TAG, "Entered startImplicitActivation()");

        Intent baseIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(URL));

        Intent chooserIntent = Intent.createChooser(baseIntent, CHOOSER_TEXT);

        Log.i(TAG,"Chooser Intent Action:" + chooserIntent.getAction());

        startActivity(chooserIntent);
    }
}