App crashes on Samsung Galaxy S6 (Android 7.0+) with opacity: 0.99

[jd20]

Bug description:
Our app has a WebView wrapped in View, on which we set opacity: 0.99. On the Galaxy S6 (and a few other similar models, such as S6+, S6 Edge, etc...) with Android 7 or 8, the app will crash once the WebView renders.

If the OS is downgraded to Android 6, it stops crashing. If I change to opacity: 1, it also stops crashing. We've not seen crashes on any other devices.

To Reproduce:
This is the commit which introduced the crash to our app: jd20/react-native-signature-pad@46ae445

Generally though, the WebView code looks like:

    <View style={containerStyle} onLayout={onLayout}>
      {size && (
        <View style={size}>
          <WebView
            ref={setRef}
            automaticallyAdjustContentInsets={false}
            onMessage={onMessage}
            onLoadEnd={start}
            renderError={onError}
            renderLoading={loader}
            source={source}
            javaScriptEnabled={true}
            style={{
              ...StyleSheet.absoluteFillObject,
              backgroundColor,
              opacity: started ? 1 : 0,
            }}
          />
        </View>
      )}
    </View>

Expected behavior:
Not to crash.

Environment:

• OS: Android
• OS version: 7.0
• react-native version: Any react-native version
• react-native-webview version: 11.3.1

[superandrew213]

@jd20 when did you start seeing this? We started seeing this error on 22 March.

Do you have overflow: 'hidden' on parent View?

[jd20]

We are not using overflow: 'hidden' on the parent View (or anywhere else). We've been seeing the issue (only ever on S6 devices running Android 7 or higher) every since we added the opacity: 0.99 fix (about 6 months ago).

[sr7354476]

I also faced same issue on Samsung Galaxy S7 series. Any solution you got @jd20 ?

[jd20]

Removing the opacity: 0.99 seems to work fine. I've not seen crashes on any other devices so far, after removing it.

While that's a valid workaround, would be great to fix underlying issue, so if someone really did need to set opacity: 0.99, it wouldn't crash the app.

[avonipenti]

Has removing opacity caused any issues on Android 8+ as I see another issue in Here
I don't want to fix for Samsung while causing additional crashes for others.

[github-actions]

Hello 👋, this issue has been opened for more than 2 months with no activity on it. If the issue is still here, please keep in mind that we need community support and help to fix it! Just comment something like still searching for solutions and if you found one, please open a pull request! You have 7 days until this gets closed automatically

[EricaLi123]

Removing the opacity: 0.99 seems to work fine. I've not seen crashes on any other devices so far, after removing it.

While that's a valid workaround, would be great to fix underlying issue, so if someone really did need to set opacity: 0.99, it wouldn't crash the app.

Do you mean that setting opacity fix some crashes but sometimes cause crash? Or just can't fix?