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Commit 4d4070c8e1ed73a56ee2f054300a0f62e3fe2e62
Parents : b677d42
Author : James Rich <2199651+jamesarich@users.noreply.github.com>
Signature : Signature validation error
Date : 2026-08-20T17:06:08Z
Committer : GitHub <noreply@github.com>
Date : 2026-08-20T17:06:08Z
perf(ui): render QR codes at display density instead of fixed 960px (#6793)
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Changes
1 files changed, 4 insertions(+), 2 deletions(-)
Diff
diff --git a/core/ui/src/commonMain/kotlin/org/meshtastic/core/ui/component/QrDialog.kt b/core/ui/src/commonMain/kotlin/org/meshtastic/core/ui/component/QrDialog.kt
index dfcc23c033..74d93e811e 100644
--- a/core/ui/src/commonMain/kotlin/org/meshtastic/core/ui/component/QrDialog.kt
+++ b/core/ui/src/commonMain/kotlin/org/meshtastic/core/ui/component/QrDialog.kt
@@ -38,6 +38,7 @@ import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.layout.ContentScale
import androidx.compose.ui.platform.LocalClipboard
+import androidx.compose.ui.platform.LocalDensity
import androidx.compose.ui.text.style.TextOverflow
import androidx.compose.ui.unit.dp
import kotlinx.coroutines.launch
@@ -63,13 +64,14 @@ import org.meshtastic.core.ui.util.createClipEntry
import org.meshtastic.core.ui.util.rememberQrCodePainter
private const val QR_DISPLAY_SIZE = 320
-private const val QR_RENDER_SIZE = 960
@Composable
fun QrDialog(title: String, uriString: String, onDismiss: () -> Unit) {
val clipboardManager = LocalClipboard.current
val coroutineScope = rememberCoroutineScope()
- val qrPainter = rememberQrCodePainter(uriString, QR_RENDER_SIZE)
+ // Render at the actual on-screen pixel size so low-density devices don't over-allocate bitmap memory.
+ val qrRenderSizePx = with(LocalDensity.current) { QR_DISPLAY_SIZE.dp.roundToPx() }
+ val qrPainter = rememberQrCodePainter(uriString, qrRenderSizePx)
val nfcSupported = LocalNfcScannerSupported.current
val nfcWriter = LocalNfcWriterProvider.current
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