I am trying to initialize a generic fragment in such manner that it can be used globally no matter what the instance of it is. For example:
public MainActivity extends Activity{
private Fragment fragment;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_first_layout);
FragmentManager fragManager = getFragmentManager();
FragmentTransaction transaction = fragManager.beginTransaction();
if(condition1){
fragment = new MyFirstFragment();
transaction
.add(R.id.registrationFragment, fragment); //registrationFragment is FrameLayout
transaction.commit();
}else if(condition2){
fragment = new MySecondFragment();
transaction
.add(R.id.registrationFragment, fragment); //registrationFragment is FrameLayout
transaction.commit();
}
//create intent filter
//create MyBroadcast object
//registerReceiver(receiverObject, intentFilter)
}
//Some action happens
class MyBroadcast extends BroadcastReceiver {
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(action1)) {
fragment.performAction();
}
}
}
public class MyFirstFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(
R.layout.fragment_holder_a, container, false);
//setWidgets etc...
// TODO Auto-generated method stub
return view;
}
//Used from main
public void performAction(String text){
//set some TextView's text from MainActivity event
//different from MySecondFragment performAction method
}
}
public class MySecondFragmentFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(
R.layout.fragment_holder_b, container, false);
//setWidgets etc...
// TODO Auto-generated method stub
return view;
}
//Used from main
public void performAction(String text){
//set some TextView's text from MainActivity event
//different from MyFirstFragment performAction method
}
}
The problem is that in my real application I may have more than 2 Fragments that the Fragment object could become an instance of. I am trying to avoid a lot of if statements to check which fragment instance was inflated with the FragmentManager. Also the problem I am facing is that When i declare the Fragment fragment = new MyFirstFragment(); I cannot access the fragment.performAction("Stringssss") method. This is not the solution I am looking for:
public MainActivity extends Activity{
private MyFirstFragment myFirstFrag;
private MySecondFragment mySecondFrag;
private MyThirdFragment myThirdFrag;
private MyNthFragment myNthFrag;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_first_layout);
FragmentManager fragManager = getFragmentManager();
FragmentTransaction transaction = fragManager.beginTransaction();
if(condition1){
myFirstFrag = new MyFirstFragment();
transaction
.add(R.id.registrationFragment, myFirstFrag); //registrationFragment is FrameLayout
transaction.commit();
}else if(condition2){
mySecondFrag = new MySecondFragment();
transaction
.add(R.id.registrationFragment, mySecondFrag); //registrationFragment is FrameLayout
transaction.commit();
}else if(condition3){
//...
}else if(conditionNth){
//...
}
//create intent filter
//create MyBroadcast object
//registerReceiver(receiverObject, intentFilter)
}
//Some action happens
class MyBroadcast extends BroadcastReceiver {
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(action1)) {
if(null != myFirstFrag)
myFirstFrag.performAction();
}else if(null != mySecondFrag){
mySecondFrag.performAction();
}else if(null != myThirdFrag){
myThirdFrag.performAction();
}else if(null != myNthFrag){
myNthFrag.performAction();
}
}else if(action.equals(actionNTH)){
if(null != myFirstFrag)
myFirstFrag.performAction();
}else if(null != mySecondFrag){
mySecondFrag.performAction();
}else if(null != myThirdFrag){
myThirdFrag.performAction();
}else if(null != myNthFrag){
myNthFrag.performAction();
}
}
}
}
As you can see in the BroadcastReceiver a lot of If-else statements start to pile up making the code clunky and dirty. I am looking for a clean solution that will not require me to have a bunch of if-else statements and keep the code simple.
Thank you.
