Close Modal in Ionic 4 by Back Button

Question

I have a Modal in Ionic 4. I\'d like to close it, when a user press the back button on her mobile (or the bac

Answer 1

For ionic 5 user

this.platform.backButton.subscribeWithPriority(999, async() => {
    if (this.modalCtrl.getTop()) {
        const modal = await this.modalCtrl.getTop();
        console.log(modal)
        if (modal) { 
            this.modalCtrl.dismiss();
            return;
        } else {
            if (this.router.url=="/myrootpage" ) {
            navigator['app'].exitApp();
        } else {
            this.navCtrl.pop();
        }
    }
    } else {
        if (this.router.url=="/myrootpage") {
            navigator['app'].exitApp();
        } else {
            this.navCtrl.pop();
        }
    } 
});