Android 中具有多个片段的多个活动

Question

I divided my app into three different activities: Authentication, Database, and Welcome screen.

For each package I Three activities and numerous fragments. My question is how to inflate each fragment to its corresponding activity? For example, Fragments google Authentication to Activity Auth.

Answer 1

You can use fragment manager to dynamically switch between your fragments such as following:

button1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                load(new fragment1()); //fragment1 is an already created fragment class name
            }
        });

public void load(Fragment f) #user defined function which loads fragment
{
    FragmentManager fm=getFragmentManager();
    FragmentTransaction transaction=fm.beginTransaction();
    transaction.replace(R.id.f1,f); //f1 is an framelayout which will be replaced by fragment1
    transaction.addToBackStack(null);
    transaction.commit();
} 

you can create a fragment class such as following

public class fragment1 extends Fragment {}

for more information on how to create and use fragments visit this website

https://guides.codepath.com/android/creating-and-using-fragments