package com.hmkcode.android.sign; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; public class MainActivity extends Activity implements OnClickListener { Button btnSignIn; Button btnSignUp; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); btnSignIn = (Button) findViewById(R.id.btnSingIn); btnSignUp = (Button) findViewById(R.id.btnSignUp); btnSignIn.setOnClickListener(this); btnSignUp.setOnClickListener(this); } @Override public void onClick(View v) { Intent i = null; switch(v.getId()){ case R.id.btnSingIn: i = new Intent(this,SignInActivity.class); break; case R.id.btnSignUp: i = new Intent(this,SignUpActivity.class); break; } startActivity(i); } }