Inspired by Android's gesture-based lock screen, and its iOS implementation GesturePasswordView, Spikef has produced its own React Native version of this Component.

react-native-gesture-password on GitHub

var PhonePickerDemo = React.createClass({
  // Example for check password
  onEnd: function (password) {
    if (password == "012") {
      this.refs.pg.setNativeProps({
        gestureError: false,
        inputTipText: "Password is right, success.",
      });

      // your codes to close this view
    } else {
      this.refs.pg.setNativeProps({
        gestureError: true,
        inputTipText: "Password is wrong, try again.",
      });
    }
  },
  onStart: function () {
    this.refs.pg.setNativeProps({
      inputDefault: "Please input your password.",
    });
  },
  render: function () {
    return (
      <PasswordGesture
        ref="pg"
        inputDefault="Please input your password."
        onStart={() => this.onStart()}
        onEnd={(password) => this.onEnd(password)}
      />
    );
  },
});