如何使用导航图形工具在 Android Studio 中打开一个页面上的“按钮单击操作”？

Question

I'm new to Android Studio and Java programming. I'm stuck trying to figure out how the graphical navigation Resource feature is used to link pages visually. I've made 2 pages for my app each with unique names (eg Page1 & Page2). I've also been able to link the two pages visually by dragging and dropping the round circle in the Graphic Navigation panel and named the action (eg action 1).

I followed the solutions offered in this thread How do I get a button to open another activity? but none of them worked for me.

This is my button's code.

public class MainActivity extends AppCompatActivity {
    private Button register_button;

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


        register_button = (Button) findViewById(R.id.action_mainActivity_to_registration);
        register_button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                openRegistrationPage();
            }
        });


    }

    public void openRegistrationPage () {

        Intent intent = new Intent(this, registration.class);
        startActivity(intent);
    }
}

I would want the next page to open when one button is clicked.

Answer 1

Make sure you declare your activities in Manifest file like this

   <activity android:name=".YOUR_ACTIVITY" />

And in you Button action, make the navigation action like this

  Intent intent = new Intent(YOUR_ACTIVITY_1.this, YOUR_ACTIVITY_2.class);
  startActivity(intent);