在NavigationUI.setupWithNavController()方法中添加一个参数，即将onStartDestinationChanged()方法的返回值改为true。示例代码如下：

NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
NavigationUI.setupWithNavController(navigationView, navController);

navController.addOnDestinationChangedListener((controller, destination, arguments) -> {
    if (destination.getId() == R.id.nav_home) {
        NavigationUI.navigateUp(navController, drawerLayout);
    }
});

NavigationUI.setupActionBarWithNavController(this, navController, drawerLayout);

// 添加参数以防止导航图在onResume后重置
NavigationUI.setupWithNavController(toolbar, navController,
        new AppBarConfiguration.Builder(navController.getGraph())
                .setFallbackOnNavigateUpListener(this::onSupportNavigateUp)
                .setIsBottomNavigation(true)
                .build(),
        true); 

这样做的效果是，当我们从后台返回应用程序时，导航图不会被重置，而是保留在当前位置。