fix(android): switch on double fails to compile — cast to int

[FerRiv3ra]

Hi! 👋

Firstly, thanks for your work on this project! 🙂

Today I used patch-package to patch react-native-zip-archive@7.1.0 for the project I'm working on.

Problem

getCompressionLevel(double compressionLevel) uses a switch statement with a double selector, which is a compile error in Java. The Java language only supports switch on int, char, byte, short, String, and enums — not double.

This causes the following build failure with newer JDK/AGP versions (related to #340):

error: constant label of type int is not compatible with switch selector type double
    case -1:
         ^
... (12 errors total)

Fix

Cast compressionLevel to int before the switch. This is safe because all valid values (-1, 0–9) are whole numbers passed from JS as number.

Here is the diff that solved my problem:

diff --git a/android/src/main/java/com/rnziparchive/RNZipArchiveModule.java b/android/src/main/java/com/rnziparchive/RNZipArchiveModule.java
index 14bd68f..cccbd99 100644
--- a/android/src/main/java/com/rnziparchive/RNZipArchiveModule.java
+++ b/android/src/main/java/com/rnziparchive/RNZipArchiveModule.java
@@ -470,7 +470,7 @@ public class RNZipArchiveModule extends ReactContextBaseJavaModule {
   }
 
   private static CompressionLevel getCompressionLevel(double compressionLevel) {
-    switch (compressionLevel) {
+    switch ((int) compressionLevel) {
       case -1:
         return CompressionLevel.NORMAL;
       case 0:

This issue body was partially generated by patch-package.

[Streudal]

Using v7.1.0, I can confirm that this patch fixes the compilation issues for Android on my end as well.

Had the same logs when running locally and using expo eas.