Android Device Hardware Back Button is not working in ionic4 Apps

2
votes

I am new to ionic framework. I have developed a simple app using ionic 4. It is working fine but Android Hardware back button is not working inside ionic app. Please suggest me how can i fix this issue. Thank you!

2
androidionic-frameworkionic4

2 Answers

2
votes

Here is the solution : in homepage.ts 

 ionViewDidEnter(){ 
  this.subscription = this.platform.backButton.subscribe(()=>{    
  navigator['app'].exitApp(); }); } 

ionViewWillLeave(){ 
   this.subscription.unsubscribe();
 }
2
votes

modifying @Vinod's answer a bit. use subscribeWithPriority

ionViewDidEnter(){ 
  this.subscription = this.platform.backButton.subscribeWithPriority(1, ()=>{    
    navigator['app'].exitApp(); 
  }); 
} 

ionViewWillLeave() { 
   this.subscription.unsubscribe();
}