observer does not re-render components in React Native about mobx-react HOT 10 CLOSED

toggleText = () => {
    this.textVisibility = !this.textVisibility;
}

class TestStore {
  textVisibility = false;

  constructor() {
    makeObservable(this, {
      textVisibility: observable,
      isTextVisible: computed,
      toggleText: action
    });
  }

  get isTextVisible() {
    return this.textVisibility;
  }

  toggleText = () => {
    this.textVisibility = !this.textVisibility;
  }
}

const testStore = new TestStore();

import React from "react";
import { observable, action } from "mobx";
import { observer, inject, Provider } from "mobx-react";

export class TestStore {
    @observable timer = 0;

    @action timerInc = () => {
        this.timer += 1;
    };
}

interface IPropsTestComp {
    TestStore?: TestStore;
}

@inject("TestStore")
@observer
export class TestComp extends React.Component<IPropsTestComp> {
    constructor(props: IPropsTestComp) {
        super(props);
        setInterval(() => {
            this.props.TestStore!.timerInc();
        }, 1000);
    }

    render() {
        return <div>{this.props.TestStore!.timer}</div>;
    }
}

export class TestApp extends React.Component {
    render() {
        return <Provider TestStore={new TestStore()}>
            <TestComp />
        </Provider>
    }
}

import { makeAutoObservable } from "mobx";

export class TestStore {
    timer = 0;

    constructor() {
      // Don't need decorators now, just this call
      makeAutoObservable(this);
    }

    timerInc = () => {
        this.timer += 1;
    };
}