package com.cheng.bigtalkdesignpatterns.singleton; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import com.cheng.designpatternstudy.R; public class BTDPSingletonActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_btdp_singleton); } public void onClick(View v) { } }