我想使用addOnDestinationChangedListener,但是一直没有成功。我已经试着自己实现了,但是ID不匹配。
NavController mController = Navigation.findNavController(this, R.id.nav_auth_fragment);
mController.addOnDestinationChangedListener((controller, destination, arguments) -> {
switch (destination.getId()){
case R.id.action_loginFragment_to_numberEntryFragment:
Toast.makeText(this, "Welcome to number Entry", Toast.LENGTH_SHORT).show();
break;
case R.id.action_numberEntryFragment_to_otpFragment:
Toast.makeText(this, "Enter your OTP", Toast.LENGTH_SHORT).show();
break;
case R.id.action_otpFragment_to_userRegistrationFragment:
Toast.makeText(this, "Your number is verified!", Toast.LENGTH_SHORT).show();
break;
default:
break;
}
});
我尝试记录下来并且这里是结果:
2019-11-04 11:39:17.179 26830-26830/com.example.myapp D/AuthActivity: 2131230930 == 2131230775 = false
2019-11-04 11:39:17.179 26830-26830/com.example.myapp D/AuthActivity: 2131230930 == 2131230781 = false
2019-11-04 11:39:17.180 26830-26830/com.example.myapp D/AuthActivity: 2131230930 == 2131230782 = false
where 2131230930 is the destination.getId() and (2131230775, 2131230781, 2131230782) is the resource ids
even when I'm at the destination, the id still doesn't match with the resource id