Taller Android SHDH Obregonx

primer_app_main_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal">
    <EditText android:id="@+id/edit_message"
        android:layout_weight="1"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:hint="@string/edit_message" />
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/button_send" />
</LinearLayout>

PrimerApp_DisplayMessageActivity.java

package personal.nombre.prueba;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.widget.TextView;

public class DisplayMessageActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

	    // Obtener el intent y el mensaje
	    Intent intent = getIntent();
	    String message = intent.getStringExtra(MainActivity.EXTRA_MESSAGE);

	    // Crear TextView
	    TextView textView = new TextView(this);
	    textView.setTextSize(40);
	    textView.setText(message);

	    // Darle la vista a la activity
	    setContentView(textView);
	}

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

}

PrimerApp_MainActivity.java

package personal.nombre.prueba;

import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.app.Activity;
import android.content.Intent;

public class MainActivity extends Activity {

  public final static String EXTRA_MESSAGE = "com.example.myfirstapp.MESSAGE";
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
	}
	
	public void sendMessage(View view) {
		Intent intent = new Intent(this, DisplayMessageActivity.class);
		EditText editText = (EditText) findViewById(R.id.edit_message);
		String message = editText.getText().toString();
		intent.putExtra(EXTRA_MESSAGE, message);
		startActivity(intent);
	}
	
}