ionic解决android返回键的问题

 先用@HostListener('document:ionBackButton', ['$event']) 监听安卓返回键

用window.location 判断当前页面是否需要后退

window.history.back(); js回退页面

ionic里 退出app方法  this.appMinimize.minimize();

下面贴上全部代码

@HostListener('document:ionBackButton', ['$event'])
  private overrideHardwareBackAction($event: any) {
    $event.detail.register(100, async () => {
      // Do what you want
      // 安卓返回键问题
      let url = window.location.href;
      console.log("返回键盘");
      console.log(url,url.indexOf("tabs"));
      if(url.indexOf("tabs") != -1) {
        this.appMinimize.minimize();
      } else {
        console.log("退到上一级");
        window.history.back();
      }
      // this.appMinimize.minimize();
      // this.router.navigateByUrl('相应路径');
    });
  }