BTDPCommandActivity.java

package com.cheng.bigtalkdesignpatterns.command;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import com.cheng.designpatternstudy.R;

public class BTDPCommandActivity extends AppCompatActivity {

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

    public void onClick(View view) {
        Receiver r = new Receiver();
        Command c = new ConcreteCommand(r);
        Invoker i = new Invoker();
        i.setCommand(c);
        i.executeCommand();
    }

}