altosdroid: Pop up menu of nearby trackers on map click

This lets the user select one of potentially many overlapping
trackers, and also makes it clear when the current tracker is being
changed.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java b/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java
index 3a5026ee..4ac24053 100644
--- a/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java
+++ b/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java
@@ -855,6 +855,22 @@ public class AltosDroid extends FragmentActivity implements AltosUnitsListener {
 		update_state(null);
 	}
 
+	void touch_trackers(Integer[] serials) {
+		AlertDialog.Builder builder_tracker = new AlertDialog.Builder(this);
+		builder_tracker.setTitle("Select Tracker");
+		final String[] trackers = new String[serials.length];
+		for (int i = 0; i < serials.length; i++)
+			trackers[i] = String.format("%d", serials[i]);
+		builder_tracker.setItems(trackers,
+					 new DialogInterface.OnClickListener() {
+						 public void onClick(DialogInterface dialog, int item) {
+							 select_tracker(Integer.parseInt(trackers[item]));
+						 }
+					 });
+		AlertDialog alert_tracker = builder_tracker.create();
+		alert_tracker.show();
+	}
+
 	void delete_track(int serial) {
 		try {
 			mService.send(Message.obtain(null, TelemetryService.MSG_DELETE_SERIAL, (Integer) serial));