package org.altusmetrum.AltosDroid;
-import org.altusmetrum.altoslib_1.*;
+import org.altusmetrum.altoslib_5.*;
import android.location.Location;
+import android.app.Activity;
+import android.graphics.Color;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentTransaction;
+import android.support.v4.app.FragmentManager;
+import android.location.Location;
+import android.util.Log;
+
+public abstract class AltosDroidTab extends Fragment {
+ AltosState last_state;
+ AltosGreatCircle last_from_receiver;
+ Location last_receiver;
+
+ public abstract void show(AltosState state, AltosGreatCircle from_receiver, Location receiver);
+
+ public abstract String tab_name();
+
+ public void set_visible(boolean visible) {
+ FragmentTransaction ft = AltosDroid.fm.beginTransaction();
+ if (visible)
+ ft.show(this);
+ else
+ ft.hide(this);
+ ft.commit();
+ }
+
+ public void update_ui(AltosState state, AltosGreatCircle from_receiver, Location receiver, boolean is_current) {
+ if (is_current) {
+ Log.d(AltosDroid.TAG, String.format("%s: visible, performing update", tab_name()));
+
+ show(state, from_receiver, receiver);
+ } else {
+ Log.d(AltosDroid.TAG, String.format("%s: not visible, skipping update", tab_name()));
+ last_state = state;
+ last_from_receiver = from_receiver;
+ last_receiver = receiver;
+ return;
+ }
+ }
+
+ public void onHiddenChanged(boolean hidden) {
+ if (last_state != null && isVisible()) {
+ AltosState state = last_state;
+ AltosGreatCircle from_receiver = last_from_receiver;
+ Location receiver = last_receiver;
-public interface AltosDroidTab {
- public void update_ui(AltosState state, AltosGreatCircle from_receiver, Location receiver);
+ last_state = null;
+ last_from_receiver = null;
+ last_receiver = null;
+ show(state, from_receiver, receiver);
+ }
+ }
}