Fix: Fractional Values Not Displayed Correctly Due to parseInt Usage

[gozafar]

Hi! 👋

Firstly, thanks for your work on this project! 🙂

Today I used patch-package to patch react-native-ruler-view@0.0.4 for the project I'm working on.

Issue:
When using the ruler with fractional units (e.g., 0.1, 0.25), the displayed value doesn't update correctly. This happens because parseInt() is used on the value before rendering, which causes the fractional part to be discarded. As a result, values like 1.5 are parsed as 1, and the UI doesn't reflect the correct measurement.

Fix:
I replaced all instances of parseInt(prevValue.current) with Number(prevValue.current) and formatted the result using .toFixed(fractionDigits). This ensures that fractional values are preserved and displayed correctly in the ruler view.

Here is the diff that solved my problem:

diff --git a/node_modules/react-native-ruler-view/src/components/RulerPicker.tsx b/node_modules/react-native-ruler-view/src/components/RulerPicker.tsx
index 16c1234..39bad42 100644
--- a/node_modules/react-native-ruler-view/src/components/RulerPicker.tsx
+++ b/node_modules/react-native-ruler-view/src/components/RulerPicker.tsx
@@ -282,16 +282,16 @@ export const RulerPicker: React.FC<RulerPickerProps> = ({
     <View pointerEvents="none" style={[styles.displayTextContainer]}>
       {showLabels &&
         getLabel(
-          parseInt(prevValue.current) - step * 2 >= min
-            ? (parseInt(prevValue.current) - step * 2).toString()
+          Number(prevValue.current) - step * 2 >= min
+            ? (Number(prevValue.current) - step * 2).toFixed(fractionDigits).toString()
             : '',
           'lightgray'
         )}
 
       {showLabels &&
         getLabel(
-          parseInt(prevValue.current) - step >= min
-            ? (parseInt(prevValue.current) - step).toString()
+          Number(prevValue.current) - step >= min
+            ? (Number(prevValue.current) - step).toFixed(fractionDigits).toString()
             : '',
           'gray'
         )}
@@ -302,24 +302,24 @@ export const RulerPicker: React.FC<RulerPickerProps> = ({
           numberOfLines={1}
           adjustsFontSizeToFit
         >
-          {parseInt(prevValue.current).toFixed(fractionDigits)}{' '}
+          {Number(prevValue.current).toFixed(fractionDigits)}{' '}
           {unit && <Text style={[styles.unitText, unitTextStyle]}>{unit}</Text>}
         </Text>
       </View>
 
       {showLabels &&
         getLabel(
-          parseInt(prevValue.current) + step >= max + step
+          Number(prevValue.current) + step >= max + step
             ? ''
-            : (parseInt(prevValue.current) + step).toString(),
+            : (Number(prevValue.current) + step).toFixed(fractionDigits).toString(),
           'gray'
         )}
 
       {showLabels &&
         getLabel(
-          parseInt(prevValue.current) + step * 2 >= max + step
+          Number(prevValue.current) + step * 2 >= max + step
             ? ''
-            : (parseInt(prevValue.current) + step * 2).toString(),
+            : (Number(prevValue.current) + step * 2).toFixed(fractionDigits).toString(),
           'lightgray'
         )}
     </View>

This issue body was partially generated by patch-package.