How can I change the fragment in current fragment?-CodePudding

I am developing a mobile application using with java in android studio.I am new to this environment.I have bottom navigation bar with 3 menu item (Home,Add article,Profile).

<menu xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <item
        android:id="@ id/home"
        android:icon="@drawable/ic_baseline_home_24"
        android:title="Home" />
    <item
        android:id="@ id/article"
        android:icon="@drawable/ic_baseline_post_add_24"
        android:title="Article" />
    <item
        android:id="@ id/profile"
        android:icon="@drawable/ic_baseline_person_24"
        android:title="Profile" />
</menu>

and in profile fragment I have two buttons(change password,update profile informations).When I click the change password button,I want to change current fragment to changePasswordFragment.But navigation bar has to be shown at the bottom . How can I figure that?

CodePudding user response：

You have to use fragment transactions to show one fragment and remove the other in the UI like in the code below.

profileFragment = new ProfileFragment();
changePassFragement= new ChangePassFragment();
changePassBtn.setonClickListener(e->{
getSupportFragmentManager().beginTransaction().replace(R.id.profileLayout,changePassFragment).commit()
});

and to replace back useprofileFragment instead of changePassFragment and the required layout in the replace() method.

CodePudding user response：

You can use fragment transaction manager to add the new fragments.Given code.

changePassBtn.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();   
transaction.replace(R.id.profile, new ChangePassFragment());
transaction.commit();
}
});

And again you can use the same code for return to the profile fragment by using replace method.