Question

I have an activity with a TextView that needs to be updated from a second activity.
I can pass the Text view data to the 2nd activity ok, but when I try to update that TextView
within the 2nd activity it crashes. My code:

1st Activity (where the TextView is defined in my xml):

Intent intent = new Intent(1stactivity.this, 2ndactivity.class); 
intent.putExtra("homescore_value", ((TextView)findViewById(R.id.score_home)).getText());
startActivity(intent);

// code snippet

Then in my 2nd activity:

Bundle bundle = getIntent().getExtras();
hometext = bundle.getString("homescore_value"); // this works and displays the correct String from 1st activity, 

but it crashes when I try to pull in as a TextView:

// other code snipped
int homescore = 0;
String Home_nickname = "HOME ";

TextView homestext = (TextView) bundle.get("homescore_value");
hometext.setText(Home_nickname +": "+homescore   );

Please help.

Answer 1

You trying to cast String to TextView. The code that crashes is equivalent of:

String text = bundle.get("homescore_value"); //this is ok
TextView textView = (TextView)text; //this is bad

You should do instead:

String text = bundle.get("homescore_value");
TextView textView = (TextView)findViewById(R.id.yourTextViewId);
textView.setText(text);