RN - Android - Modal + Home Button Long Press = app crash

[GitHubTracey]

Is this a bug report?

Yes

Have you read the Contributing Guidelines?

Yes

Environment

1. react-native -v: 0.44.3
2. node -v: v8.2.1
3. npm -v: 5.3.0
4. yarn --version<!-- (if you use Yarn) —>: n/a

Target Platform: [Android/iOS]
Development Operating System: macOS
Build tools: Android Studios/xCode

Steps to Reproduce

Open App on Android phone
Open Category (custom component)
Open Modal
Hold Home button (long press)
App Crashes…

Expected Behavior

Expect app to hide in background until user brings app back up again, and return to same screen.

Actual Behavior

App Crashes with error: “Unfortunately myApp has stopped [OK]”

Notes / Comments

• does not happen for iOS
• does not happen for any other component
• for one of the modals, we use touchid to log the user in - if the user has a registered fingerprint, on a longpress, the user is signed in and the app does not crash.

Reproducible Demo

All modals are designed the same way. I have removed styling for clarity.

<Modal
    onRequestClose={()=> {
        props.waitingForResponse(false);
    }}
    visible={props.visible}>
    <View>
        <View>
            <View>
                <Image source={modalImageSrc} />
                <Text>
                    {props.showErrorMesage ? "Error" : props.title}
                </Text>
                <Text>{props.showErrorMesage ? "Item disabled" : props.text}</Text>
            </View>
            <View>
                <Button
                    onPress={()=> {
                        props.waitingForResponse(false);
                    }}
                    title="Cancel"
                />
            </View>
        </View>
    </View>
</Modal>

[christophermark]

I can reproduce as well on React Native 43.3

Android error:

                                                                        java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.dispatchProvideStructure(android.view.ViewStructure)' on a null object reference
                                                                            at android.view.ViewGroup.dispatchProvideStructure(ViewGroup.java:2961)
                                                                            at android.view.ViewGroup.dispatchProvideStructure(ViewGroup.java:2961)
                                                                            at android.view.ViewGroup.dispatchProvideStructure(ViewGroup.java:2961)
                                                                            at android.view.ViewGroup.dispatchProvideStructure(ViewGroup.java:2961)
                                                                            at android.view.ViewGroup.dispatchProvideStructure(ViewGroup.java:2961)
                                                                            at android.view.ViewGroup.dispatchProvideStructure(ViewGroup.java:2961)
                                                                            at android.view.ViewGroup.dispatchProvideStructure(ViewGroup.java:2961)
                                                                            at android.view.ViewGroup.dispatchProvideStructure(ViewGroup.java:2961)
                                                                            at android.app.assist.AssistStructure$WindowNode.<init>(AssistStructure.java:422)
                                                                            at android.app.assist.AssistStructure.<init>(AssistStructure.java:1335)
                                                                            at android.app.ActivityThread.handleRequestAssistContextExtras(ActivityThread.java:2586)
                                                                            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1539)
                                                                            at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                            at android.os.Looper.loop(Looper.java:148)
                                                                            at android.app.ActivityThread.main(ActivityThread.java:5417)
                                                                            at java.lang.reflect.Method.invoke(Native Method)
                                                                            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
                                                                            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

[christophermark]

Dupe of #13201

[GitHubTracey]

closing in favour of #13201