observe background task count in the UI fragments

[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / ui / transaction_list / TransactionListFragment.java

diff --git a/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListFragment.java b/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListFragment.java
index c84da7921b6ab343b2dbaed5033fd897e00d8466..92b95fb402f5936cb08d0172a7a88b59d9201aa8 100644 (file)
--- a/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListFragment.java
+++ b/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListFragment.java
@@ -55,8 +55,17 @@ public class TransactionListFragment extends MobileLedgerListFragment {
     private MenuItem menuTransactionListFilter;
     private View vAccountFilter;
     private AutoCompleteTextView accNameFilter;
+    private Observer backgroundTaskCountObserver;
     private static void update(Observable o, Object arg) {
     }
+    @Override
+    public void onDestroy() {
+        if (backgroundTaskCountObserver != null) {
+            Log.d("rtl", "destroying background task count observer");
+            Data.backgroundTaskCount.deleteObserver(backgroundTaskCountObserver);
+        }
+        super.onDestroy();
+    }
     public void setShowOnlyAccountName(String mShowOnlyAccountName) {
         this.mShowOnlyAccountName = mShowOnlyAccountName;
         if (modelAdapter != null) {
@@ -80,6 +89,22 @@ public class TransactionListFragment extends MobileLedgerListFragment {
     public void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setHasOptionsMenu(true);
+        if (backgroundTaskCountObserver == null) {
+            Log.d("rtl", "creating background task count observer");
+            Data.backgroundTaskCount.addObserver(backgroundTaskCountObserver = new Observer() {
+                @Override
+                public void update(Observable o, Object arg) {
+                    mActivity.runOnUiThread(new Runnable() {
+                        @Override
+                        public void run() {
+                            int cnt = Data.backgroundTaskCount.get();
+                            Log.d("trl", String.format("background task count changed to %d", cnt));
+                            swiper.setRefreshing(cnt > 0);
+                        }
+                    });
+                }
+            });
+        }
     }
     @Override
     public void onAttach(Context context) {
@@ -180,6 +205,7 @@ public class TransactionListFragment extends MobileLedgerListFragment {
                 });
             }
         });
+
     }
     @Override
     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {