Change Activity via Options Menu

gorjan · October 27th, 2010, 12:38 PM

Hi All,

I'm really new to Android development, so I have one basic question.
I have the following code. I want to change the screen(the Activity) via Options menu:

Code:

@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		// TODO Auto-generated method stub
		switch (item.getItemId())
		{
		case R.id.item01:
			Intent intentItem1 = new Intent(this, Item1Activity.class);
			startActivityForResult(intentItem1, 0);
			//startActivity(intentItem1);
			return true;
			
		default: return super.onOptionsItemSelected(item);
		}
		
	}

But the activity doesn't change and the error message I receive while debugging is that "The resource doesn't exist"

Any ideas?

Thanks in advance.

sscAndroid · October 27th, 2010, 06:18 PM

Your code for changing the activity looks solid.

If you receive the error that a resource cannot be found, that means you're accessing a xml resource that just isn't there. In your example, the only line where you access a resource is your

Code:

case R.id.item01:

line. You should check if your menuitem is really spelled that way.

Besides, your compiler should tell you exactly where and what is causing the error, just check the logcat output.