"_this2.setState is not a function."

I’m a new for rect-native, but I even can’t run the example which is given. It get the error as title when it run the code: this.setState({ avatarSource: source }); and when I add the invoker into my own project, it give another warning and doesn’t work properly: Attempt to present <UIAlertController: 0x7ff8ad99e9d0> on <UIImagePickerController: 0x7ff8c49f2e00> whose view is not in the window hierarchy! Is there some wrong with my environment?

[Julia-Lavrova]

try use () => {}

  showActionSheet = () => {
    {your code}
  } 

[yfuks]

_this2.setState is not a function

mean that you don’t have the react class context in your function

for exemple on the onPress you can do like :

onPress={() => this.myFunction()}

To bind your react class context into your function