如何在android lifecycleobserver中获取上下文和视图？

import android.arch.lifecycle.Lifecycle;
import android.arch.lifecycle.LifecycleObserver;
import android.arch.lifecycle.OnLifecycleEvent;
import android.content.Context;
import android.view.View;

public class MyLifecycleObserver implements LifecycleObserver {
    private Context mContext;
    private View mView;

    public MyLifecycleObserver(Context context, View view) {
        mContext = context;
        mView = view;
    }

    @OnLifecycleEvent(Lifecycle.Event.ON_CREATE)
    public void onCreate() {
        // 在这里可以使用 mContext 和 mView
    }

    @OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
    public void onDestroy() {
        // 在这里释放资源
    }
}

public class MainActivity extends AppCompatActivity {
    private MyLifecycleObserver mLifecycleObserver;

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

        View rootView = findViewById(android.R.id.content);
        mLifecycleObserver = new MyLifecycleObserver(this, rootView);

        getLifecycle().addObserver(mLifecycleObserver);
    }
}