(Android Studio) How to debug through my code only?

When I try to debug through my code in Android (using Step Into, F7 command), the debugger takes me through all system classes, which I do not want.

For example, when I place a breakpoint at the 2nd line below (i.e. "startActivity(ourIntent);"), instead of going into my Activity (i.e. "myclass), the execution point goes into Activity.java > Instrumentation.java, etc... all system classes.

I dont want that. I only want to step through my code that I have written.

What is a way to achieve this?

        Intent ourIntent = new Intent(MainActivity.this, "com.practice.gamesbook.myclass");
        startActivity(ourIntent);

"Add new Pattern" option under "Debugger" > "Stepping" is disabled

Go to Android Studio > Preferences > Debugger > Stepping then in the bottom click the plus arrow with the question mark that says Add Pattern. Type android.* and hit OK and then Apply.

In Android Studio 2.0 select File > Settings > Build, Execution, Deployment > Debugger > Stepping. Then click the "Add Pattern"

button on the right. Type android.* (or whatever pattern you want to exclude) and click "OK" twice.

In addition to Adam Johns's answer for ignoring the Android libraries, you can use the "Step Over" button (F8) to step over a method call the details of which you're not interested in, such as from any other library you import.

Use f9 (Resume Program). This will Resume your Program and stop only to the next Break Point.

In Android 2.3.1 Go to Android Studio > Preferences > Debugger > Stepping then in the bottom click the plus arrow icon which has dot,star and question mark which is Add Pattern. Type android.* and com.android.* and click OK and Apply.

Shift-F11 to step out of the method helps too.