Android studio(안드로이드 스튜디오) Fragment 플래그먼트와 버튼 적용

 

 

 

button = findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        FragmentTransaction fragmentTransactionClick = fragmentManager.beginTransaction(); //클릭 함수 내에서 따로 실행
        if (flag == false) {
            flag = true;
            fragmentTransactionClick.replace(R.id.container, new FragmentTwo());
            //(int containerViewId, Fragment)
            fragmentTransactionClick.commit();
        } else if (flag == true) {
            flag = false;
            fragmentTransactionClick.replace(R.id.container, new FragmentOne());
            //(int containerViewId, Fragment)
            fragmentTransactionClick.commit();
        }
    }
});