¿Qué hace Put Extra?
Intent i = new Intent(FirstScreen.this, SecondScreen.class);
String keyIdentifer = null;
i.putExtra("STRING_I_NEED", strName);
Yellowed Yacare
Intent i = new Intent(FirstScreen.this, SecondScreen.class);
String keyIdentifer = null;
i.putExtra("STRING_I_NEED", strName);
String newString
if (savedInstanceState == null) {
extras = getIntent().getExtras();
if(extras == null) {
newString= null;
} else {
newString= extras.getString("STRING_I_NEED");
}
} else {
newString= (String) savedInstanceState.getSerializable("STRING_I_NEED");
}