package com.capgemini.playinwithfragmenttransactions;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
public class MainActivity extends Activity {
private String _dynamicFragments = "DynamicFragment";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void onClickBtnAdd(View view) {
FragmentManager fragmentManager = getFragmentManager();
HappyFragment happyFragment = new HappyFragment();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.add(R.id.group1, happyFragment, _dynamicFragments);
fragmentTransaction.addToBackStack("Add");
fragmentTransaction.commit();
}
public void onClickBtnRemove(View view) {
FragmentManager fragmentManager = getFragmentManager();
SadFragment sadFragment = new SadFragment();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
Fragment oldFragment = fragmentManager.findFragmentByTag(_dynamicFragments);
if (oldFragment != null)
fragmentTransaction.remove(oldFragment);
fragmentTransaction.add(R.id.group1, sadFragment, _dynamicFragments);
fragmentTransaction.addToBackStack("Remove");
fragmentTransaction.commit();
}
public void onClickBtnReplace(View view) {
FragmentManager fragmentManager = getFragmentManager();
HappyFragment happyFragment = new HappyFragment();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.group1, happyFragment, _dynamicFragments);
fragmentTransaction.addToBackStack("Replace");
fragmentTransaction.commit();
}
public void onClickBtnDetach(View view) {
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.detach(fragmentManager.findFragmentByTag(_dynamicFragments));
fragmentTransaction.addToBackStack("Detach");
fragmentTransaction.commit();
}
public void onClickBtnAttach(View view) {
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.attach(fragmentManager.findFragmentByTag(_dynamicFragments));
fragmentTransaction.addToBackStack("Attach");
fragmentTransaction.commit();
}
public void onClickBtnPrevious(View view) {
FragmentManager fm = getFragmentManager();
fm.popBackStack();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}