android - 如何在android中交换两个按钮的位置

Question

当我们点击切换按钮时，我想交换两个按钮的位置。我已经尝试了很多但没有成功。因此，如果有人知道如何执行此操作，请建议我。谢谢大家。

Answer 1

//这是交换按钮所需的代码。

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class Foo extends Activity {

    Button switcher;
    Button A1;
    Button A2;
    Button B1;
    Button B2;
    boolean buttons1AreVisible = true;

    protected void onCreate(Bundle allthethings) {
        super.onCreate(allthethings);
        setContentView(R.layout.activity_main);

        switcher = (Button) findViewById(R.id.switcher);
        A1 = (Button) findViewById(R.id.buttonA1);
        A2 = (Button) findViewById(R.id.buttonA2);
        B1 = (Button) findViewById(R.id.buttonB1);
        B2 = (Button) findViewById(R.id.buttonB2);


        switcher.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                if (buttons1AreVisible) {
                    A1.setVisibility(View.GONE);
                    B1.setVisibility(View.GONE);
                    B2.setVisibility(View.VISIBLE);
                    A2.setVisibility(View.VISIBLE);
                } else {
                    A1.setVisibility(View.VISIBLE);
                    B1.setVisibility(View.VISIBLE);
                    B2.setVisibility(View.GONE);
                    A2.setVisibility(View.GONE);
                }

                buttons1AreVisible = !buttons1AreVisible;

            }
        });
    }


}