package com.example.activity; import androidx.appcompat.app.AppCompatActivity; import android.content.Intent; import android.os.Bundle; import android.view.View; import com.example.R; import butterknife.OnClick; public class MainActivity2 extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main2); } @OnClick({R.id.ll_main_start_answer,R.id.btn_choose}) public void onViewClicked(View view){ switch (view.getId()){ case R.id.ll_main_start_answer: Intent intent = new Intent(MainActivity2.this,AnswerActivity.class); } } }