Android: Skip zip entries with UTFDataFormatException

In most cases it is 配布フリー宣言.txt and can be safely ignored.

android/README.md

@@ -57,4 +57,4 @@ Note: This form of ZIP can be used in [Kichikuou on Web](http://kichikuou.github
 - To uninstall a game, long-tap the title in the game list.
 
 ## Known Issues
-- Android versions older than 7.0 cannot handle ZIPs containing Shift-JIS file names. This is the case with some ZIPs distributed on [retroc.net](http://retropc.net/alice/). If you get the error "This type of ZIP is not supported.", unzip the ZIP file on your PC and re-archive it with a modern ZIP creation software.
+- Installation from a ZIP containing multiple games (e.g. DPS series) does not work well.

android/app/src/main/java/io/github/kichikuou/system3/Launcher.kt

@@ -201,9 +201,6 @@ class Launcher private constructor(private val rootDir: File) {
             handler.sendMessage(handler.obtainMessage(SUCCESS, outDir))
         } catch (e: InstallFailureException) {
             handler.sendMessage(handler.obtainMessage(FAILURE, e.msgId))
-        } catch (e: UTFDataFormatException) {
-            // Attempted to read Shift_JIS zip in Android < 7
-            handler.sendMessage(handler.obtainMessage(FAILURE, R.string.unsupported_zip))
         } catch (e: IOException) {
             Log.e("launcher", "Failed to extract ZIP", e)
             handler.sendMessage(handler.obtainMessage(FAILURE, R.string.zip_extraction_error))
@@ -249,8 +246,13 @@ private fun forEachZipEntry(input: InputStream, action: (ZipEntry, ZipInputStrea
     }
     zip.use {
         while (true) {
-            val zipEntry = zip.nextEntry ?: break
-            action(zipEntry, zip)
+            try {
+                val zipEntry = zip.nextEntry ?: break
+                action(zipEntry, zip)
+            } catch (e: UTFDataFormatException) {
+                Log.w("forEachZipEntry", "UTFDataFormatException: skipping a zip entry")
+                zip.closeEntry()
+            }
         }
     }
 }