bug: hardware back button in ionic 4

[kushalkulle]

this.platform.backButton.subscribeWithPriority(0 ,() => {
// close action sheet
this.routerOutlets.forEach((outlet: IonRouterOutlet) => {
this.appExit();
if (outlet && outlet.canGoBack()) {
outlet.pop();
}
});
});

async appExit(){
const alert = await this.alertController.create({
header: 'App termination',
message: 'Do you want to close the app?',
buttons: [{
text: 'Cancel',
role: 'cancel',
handler: () => {
console.log('Application exit prevented!');
}
}, {
text: 'Close App',
handler: () => {
navigator['app'].exitApp(); // Close this application
}
}]
});
return await alert.present();
}

Apart from this, tried with other ways from Stackoverflow and other forums too. Still unable to solve. Hope I get support from Ionic team ASAP.

These dependencies are using in my applications.

"dependencies": {
"@angular/common": "^7.2.2",
"@angular/core": "^7.2.2",
"@angular/fire": "^5.1.2",
"@angular/forms": "^7.2.2",
"@angular/http": "^7.2.2",
"@angular/platform-browser": "^7.2.2",
"@angular/platform-browser-dynamic": "^7.2.2",
"@angular/router": "^7.2.2",
"@ionic-native/app-minimize": "^5.5.0",
"@ionic-native/core": "^5.0.0",
"@ionic-native/google-plus": "^5.3.0",
"@ionic-native/network": "^5.5.0",
"@ionic-native/splash-screen": "^5.0.0",
"@ionic-native/status-bar": "^5.0.0",
"@ionic/angular": "^4.0.0",
"@ionic/storage": "^2.2.0",
"cordova": "^9.0.0",
"cordova-android": "7.1.4",
"cordova-plugin-device": "^2.0.2",
"cordova-plugin-googleplus": "7.0.1",
"cordova-plugin-ionic-keyboard": "^2.1.3",
"cordova-plugin-ionic-webview": "^3.1.2",
"cordova-plugin-splashscreen": "^5.0.2",
"cordova-plugin-statusbar": "^2.4.2",
"cordova-plugin-whitelist": "^1.3.3",
"core-js": "^2.5.4",
"firebase": "^5.9.2",
"moment": "^2.24.0",
"rxjs": "~6.3.3",
"zone.js": "~0.8.29"
}

[liamdebeasi]

Hi there,

Thanks for the issue. I am going to close this as a duplicate of #16611. Note: This is a collection of multiple issues, but the issue you describe is under the Cordova/App section.

Thanks!

[ionitron-bot]

Thanks for the issue! This issue is being locked to prevent comments that are not relevant to the original issue. If this is still an issue with the latest version of Ionic, please create a new issue and ensure the template is fully filled out.