feat: improve QR code decoding from gallery with better resource management

app-common/src/main/java/im/angry/openeuicc/ui/wizard/DownloadWizardMethodSelectFragment.kt

@@ -54,16 +54,23 @@ class DownloadWizardMethodSelectFragment : DownloadWizardActivity.DownloadWizard
         }
 
     private suspend fun onGalleryResult(result: Uri?) {
-        var bmp: Bitmap? = null
-        try {
-            bmp = requireContext().contentResolver.openInputStream(result ?: return)
+        fun <T> Bitmap.use(block: Bitmap.() -> T): T = try {
+            block()
+        } finally {
+            recycle()
+        }
+
+        val decoded = try {
+            requireContext().contentResolver.openInputStream(result ?: return)
                 .use(BitmapFactory::decodeStream)
-            val decoded = decodeQrFromBitmap(bmp)
-            withContext(Dispatchers.Main) { processLpaString(decoded) }
+                .use(::decodeQrFromBitmap)
         } catch (e: Exception) {
             Log.e(TAG, "Failed to decode QR code from gallery", e)
-        } finally {
-            bmp?.recycle()
+            return
+        }
+
+        withContext(Dispatchers.Main) {
+            processLpaString(decoded)
         }
     }