add constructor for json.ParsedQuantity that instantiates from string

fixes a reported crash

diff --git a/app/src/main/java/net/ktnx/mobileledger/json/ParsedQuantity.java b/app/src/main/java/net/ktnx/mobileledger/json/ParsedQuantity.java
index 0dfc583f97f1bf61bff2da5ea566432e2ca5228a..600c26474d73f58fac6018c28d425a09575b9057 100644 (file)
--- a/app/src/main/java/net/ktnx/mobileledger/json/ParsedQuantity.java
+++ b/app/src/main/java/net/ktnx/mobileledger/json/ParsedQuantity.java
@@ -25,6 +25,18 @@ public class ParsedQuantity {
     private int decimalPlaces;
     public ParsedQuantity() {
     }
     private int decimalPlaces;
     public ParsedQuantity() {
     }

+    public ParsedQuantity(String input) {
+        int pointPos = input.indexOf('.');
+        if (pointPos >= 0) {
+            String integral = input.replace(".", "");
+            decimalMantissa = Long.valueOf(integral);
+            decimalPlaces = input.length() - pointPos - 1;
+        }
+        else {
+            decimalMantissa = Long.valueOf(input);
+            decimalPlaces = 0;
+        }
+    }

     public long getDecimalMantissa() {
         return decimalMantissa;
     }
     public long getDecimalMantissa() {
         return decimalMantissa;
     }