java - Android中的setOnClickListener()

Question

<分区>

Answer 1

我通常会按照以下方式做一些事情:

public class Menu extends AppCompatActivity {

Private Button button1, button2, button3, button4, button5;

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


        button1 = (Button) findViewById(R.id.button1);
        button2 = (Button) findViewById(R.id.button2);
        button3 = (Button) findViewById(R.id.button3);
        button4 = (Button) findViewById(R.id.button4);
        button5 = (Button) findViewById(R.id.button5);

        Button[] buttons = new Button[] {button1, button2, button3, button4, button5};
        final String[] functions= new String[] {"options", "exit", "credits", "more", "pictures"};
        for (int i = 0; i < buttons.length; i++) {
            final String function = functions[i].toString();
            buttons[i].setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    StartIntent(function);
                }
            });
        }
    }

    private StartIntent (String function){
        Intent i;

        switch (function) {
            case options:
                i = new Intent(this, OptionsActivity.class);
                break;
            case options:
                i = new Intent(this, ExitActivity.class);
                break;
            case options:
                i = new Intent(this, CreditsActivity.class);
                break;
            case options:
                i = new Intent(this, MoreActivity.class);
                break;
            case options:
                i = new Intent(this, PicturesActivity.class);
                break;
            default:
                Log.e("StartIntent", "invalid function");
                return;
        }

        startActivity(i);
    }
}

这将根据您单击的按钮打开不同的 Intent ，但这实际上取决于您的情况。