Android Programming: The Big Nerd Ranch Guide

Working with Existing Runs

The next logical thing to do is allow the user to navigate from the list of runs to the details of a specific run. In order for this to work well, RunFragment needs some support for passing a run ID as an argument. Since you host RunFragment in RunActivity, it too needs an extra for the run ID.

First, add the argument to RunFragment and a newInstance(long) method to make it easier to use.

Listing 34.18  Adding a run ID argument (RunFragment.java)

public class RunFragment extends Fragment {
    private static final String TAG = "RunFragment";
    private static final String ARG_RUN_ID = "RUN_ID";

    ...

    private TextView mStartedTextView, mLatitudeTextView,
        mLongitudeTextView, mAltitudeTextView, mDurationTextView;

 public static RunFragment ...