mainActivity 에서 newAcltivity 로 가면 버튼이 안보입니다.
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void onClick(View view){
Intent i = new Intent(getApplicationContext(),NewActivity.class);
startActivity(i);
}
}
public class NewActivity extends AppCompatActivity{
@Override
public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
super.onCreate(savedInstanceState, persistentState);
setContentView(R.layout.activity_new);
}
public void onClick(View view){
Toast.makeText(getApplicationContext(),"돌아가기",Toast.LENGTH_LONG).show();
finish();
}
}