참고 URL : http://itpangpang.tistory.com/114
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public class MainActivity extends AppCompatActivity {
Button btn_move_page1;
Button btn_move_page2;
Button btn_move_page3;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setup();
movePage1();
}
private void setup()
{
btn_move_page1 = (Button) findViewById(R.id.btn_move_page1);
btn_move_page2 = (Button) findViewById(R.id.btn_move_page2);
btn_move_page3 = (Button) findViewById(R.id.btn_move_page3);
btn_move_page1.setOnClickListener(myListener);
btn_move_page2.setOnClickListener(myListener);
btn_move_page3.setOnClickListener(myListener);
}
View.OnClickListener myListener = new View.OnClickListener(){
@Override
public void onClick(View view) {
btn_move_page1.setSelected(false);
btn_move_page2.setSelected(false);
btn_move_page3.setSelected(false);
switch (view.getId()){
case R.id.btn_move_page1:
movePage1();
break;
case R.id.btn_move_page2:
movePage2();
break;
case R.id.btn_move_page3:
movePage3();
break;
}
}
};
public void movePage1(){
Page1 page1 = new Page1();
//FragmentManager : Activity위(안)에서 Fragment와 Activity의 상호작용을 관리
FragmentManager fragmentManager = getFragmentManager();
//FragmentTransaction
// - 실질적으로 이 Transaction이 Activity위에 Fragment를 올려주고(add) 있던걸 빼고
// 다시올리고(replace) 제거해주고(remove) commit등 여러가지 중요한 활동이 가능하게 도와준다.
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.ll_page, page1);
fragmentTransaction.commit();
}
public void movePage2(){
Page2 page2 = new Page2();
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.ll_page, page2);
fragmentTransaction.commit();
}
public void movePage3(){
Page3 page3 = new Page3();
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.ll_page, page3);
fragmentTransaction.commit();
}
//버튼 하단에 있는 LinearLayout에 보여줄 페이지 처리
// - 이때 Activity라면 AppCompatActivity 를 extends 받아야 된다.
// - extends를 Fragment로 하면서 Activity가 아니라 Fragment임을 알 수 있다.
// 또한 onCreate()메소드가 아닌 onCreateView()메소드를 이용했다.
public static class Page1 extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
//화면을 가져오기 위해서 LayoutInflater 객체를 이용했다.
// - inflate() : xml을 실제 객체로 사용가능하게 하는 역할을 담당
View view = inflater.inflate(R.layout.fragment_page1, container, false);
return view;
}
}
public static class Page2 extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_page2, container, false);
return view;
}
}
public static class Page3 extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_page3, container, false);
return view;
}
}
}
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