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onChange event Android

See original GitHub issue

@kevinstumpf thank you very much for the wrapper! Awesome job!

I cannot get onChange event triggered on Android. Do you know what could be wrong? Please let me know.

<SignaturePad ref={(element) => this.signPad = element}

handleOnSignatureChange is not called:

handleOnSignatureChange = () => {

Issue Analytics

  • State:closed
  • Created 6 years ago
  • Reactions:14
  • Comments:22 (2 by maintainers)

github_iconTop GitHub Comments

n-permanacommented, Sep 16, 2017

@satishsynnov add this to /node_modules/react-native-signature-pad/injectedJavaScript/executeNativeFunction.js window.postMessage(JSON.stringify(args));

and this to /node_modules/react-native-signature-pad/index.js

onMessage = (event) => {
   var base64DataUrl = JSON.parse(;

 render = () => {
   return (
       <WebView automaticallyAdjustContentInsets={false}
davidkhuucommented, Sep 20, 2017


Not sure technically how but when Google released Nougat they stated that default WebViews would now use Chrome WebView as opposed to Google WebView that was used in previous versions. That’s my guess.


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