Removing fragments from an activity

Question

FragmantClass rSum = new FragmantClass();
getSupportFragmentManager().beginTransaction().remove(rSum).commit();       

I am trying to remove this fragm

Answer 1

getSupportFragmentManager().beginTransaction().
remove(getSupportFragmentManager().findFragmentById(R.id.frame)).commit();

Try this, it should work.

public void switchContent(Fragment fragment) {
    getSupportFragmentManager().beginTransaction().
    remove(getSupportFragmentManager().findFragmentById(R.id.frame)).commit();
    mContent = fragment;
    getSupportFragmentManager()
        .beginTransaction()
        .replace(R.id.content_frame, fragment)
        .commit();
    getSlidingMenu().showContent();
}