Crash due to Invalid district key "2018tx"

[1fish2]

On Android 8.1 emulator with Google Play (also reported on 8.0), do this:

1. Open the "Districts" screen via the hamburger menu.
2. Scroll down.
3. Observe crash due to invalid district key "2018tx".

The problem is the string "tx" is not in the list of strings in DistrictType.fromAbbreviation().

    --------- beginning of crash
09-15 21:19:22.197 4387-4387/com.thebluealliance.androidclient.development E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.thebluealliance.androidclient.development, PID: 4387
    java.lang.IllegalArgumentException: Invalid district key
        at com.thebluealliance.androidclient.listeners.DistrictClickListener.<init>(DistrictClickListener.java:21)
        at com.thebluealliance.androidclient.listitems.DistrictListElement.getView(DistrictListElement.java:61)
        at com.thebluealliance.androidclient.adapters.ListViewAdapter.getView(ListViewAdapter.java:29)
        at android.widget.AbsListView.obtainView(AbsListView.java:2365)
        at android.widget.ListView.makeAndAddView(ListView.java:2052)
        at android.widget.ListView.fillDown(ListView.java:786)
        at android.widget.ListView.fillGap(ListView.java:750)
        at android.widget.AbsListView.trackMotionScroll(AbsListView.java:5225)
        at android.widget.ListView.trackMotionScroll(ListView.java:1971)
        at android.widget.AbsListView$FlingRunnable.run(AbsListView.java:4769)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911)
        at android.view.Choreographer.doCallbacks(Choreographer.java:723)
        at android.view.Choreographer.doFrame(Choreographer.java:655)
        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)
        at android.os.Handler.handleCallback(Handler.java:790)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6494)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
09-15 21:19:22.199 4387-4387/com.thebluealliance.androidclient.development W/GAv4: Discarding hit. Missing tracking id parameter: exd=IllegalArgumentException (@DistrictClickListener:<init>:21) {main},cd=com.thebluealliance.androidclient.activities.HomeActivity,a=1824206452,exf=1,sf=100.0,t=exception,av=4.3.1-2+g7354a73,an=The Blue Alliance Debug,aid=4.3.1-2+g7354a73,tid=
09-15 21:19:22.203 4387-4387/com.thebluealliance.androidclient.development E/UncaughtException: java.lang.IllegalArgumentException: Invalid district key
        at com.thebluealliance.androidclient.listeners.DistrictClickListener.<init>(DistrictClickListener.java:21)
        at com.thebluealliance.androidclient.listitems.DistrictListElement.getView(DistrictListElement.java:61)
        at com.thebluealliance.androidclient.adapters.ListViewAdapter.getView(ListViewAdapter.java:29)
        at android.widget.AbsListView.obtainView(AbsListView.java:2365)
        at android.widget.ListView.makeAndAddView(ListView.java:2052)
        at android.widget.ListView.fillDown(ListView.java:786)
        at android.widget.ListView.fillGap(ListView.java:750)
        at android.widget.AbsListView.trackMotionScroll(AbsListView.java:5225)
        at android.widget.ListView.trackMotionScroll(ListView.java:1971)
        at android.widget.AbsListView$FlingRunnable.run(AbsListView.java:4769)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911)
        at android.view.Choreographer.doCallbacks(Choreographer.java:723)
        at android.view.Choreographer.doFrame(Choreographer.java:655)
        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)
        at android.os.Handler.handleCallback(Handler.java:790)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6494)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

[1fish2]

This branch has the minimal fixes to the build files to build and install the APK with current dev tools. Then you can set breakpoints.

[1fish2]

(This Issue duplicates #868.)