Android -如何知道，在主机活动中，导航已经结束

public class MainActivity extends AppCompatActivity {
    private boolean isNavigationEnded = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    @Override
    protected void onResume() {
        super.onResume();
        // 导航开始
        isNavigationEnded = false;
    }

    @Override
    protected void onStop() {
        super.onStop();
        // 导航结束
        isNavigationEnded = true;
    }

    public void someMethod() {
        if (isNavigationEnded) {
            // 导航已经结束，执行相应的逻辑
        } else {
            // 导航还未结束，执行其他逻辑
        }
    }
}