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package course.labs.intentslab; /*from w ww . j ava2 s . c o m*/ 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 GET_TEXT_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()"); // Declaring an explicit intent to start ExplicitlyLoadedActivity Intent explicitIntent = new Intent(ActivityLoaderActivity.this, ExplicitlyLoadedActivity.class); startActivityForResult(explicitIntent, GET_TEXT_REQUEST_CODE); } // Start a Browser Activity to view a web page or its URL private void startImplicitActivation() { Log.i(TAG, "Entered startImplicitActivation()"); // Create a base intent for viewing a URL Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(URL)); // Create a chooser intent, for choosing which Activity // will carry out the baseIntent. Intent chooserIntent = browserIntent.createChooser(browserIntent, CHOOSER_TEXT); Log.i(TAG,"Chooser Intent Action:" + chooserIntent.getAction()); // Start the chooser Activity, using the chooser intent startActivity(chooserIntent); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); Log.i(TAG, "Entered onActivityResult()"); // Process the result only if this method received both a // RESULT_OK result code and a recognized request code // If so, update the Textview showing the user-entered text. if(resultCode == RESULT_OK){ switch(requestCode){ case GET_TEXT_REQUEST_CODE: mUserTextView.setText(data.getCharSequenceExtra(ExplicitlyLoadedActivity.EXTRA_USER_INPUT)); break; default: break; } } } }