Question

I’m new to Android app development and Java in general. I have been watching some tutorials but decided it was time to start doing something on my own. I’m trying to make a fat caliper calculator where I insert all the info in one activity, calculate it and then pass the results on to another activity for displaying it. For some reason I’m getting a force close every time I hit the calculate button and I’m not sure what’s causing it or which activity.

Here’s the code:

MainActivity

Display

Can you see what’s causing the force closes?

Thanks.

Answer 1

The problem is you are starting display Activity but not passing bundle to the Display Activity.

Change your code like this when you are starting Display Activity.

Intent a = new Intent(MainActivity.this, Display.class);
a.putExtras("giveResults",packet );
startActivity(a);