CODEWITHSUNDEEP
javaandroidandroid-fragments
John Snow
John Snow

Reputation: 2018

Cannot ResolveFragmentTransaction.add() with v4.app.Fragment import

I'm trying to dynamically create a fragment and am getting the following error message:

Cannot resolve method 'add(int, com.brewguide.android.coffeebrewguide.RecipeFragment)

Other answers I have looked up suggested that the library import for the fragment was off, so I've added the library imports v4.app.Fragment instead of app.Fragment to both the Fragment and the Activity that calls the fragment and the issue hasn't gone away. Below is my code:

MenuActivity.java

package com.brewguide.android.coffeebrewguide;
import android.support.v4.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.widget.Toast;

public class MenuActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        int position;
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_menu);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        //retrieves intent
        Intent i = getIntent();

        //fetches menu option that was selected.
        // 0  is the default
        position = i.getIntExtra("position", 0);

        // get an instance of FragmentTransaction from your Activity
        FragmentManager fragmentManager = getFragmentManager();
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();

        //add a fragment
        RecipeFragment myFragment = new RecipeFragment();
        fragmentTransaction.add(R.id.myfragment, myFragment);
        fragmentTransaction.commit();

        switch (position){
            case 1:
                break;
            case 2:
                break;
            case 3:
                break;
            case 4:
                break;
            default:
                Toast toast = Toast.makeText(this,
                        "An Error has occurred.",
                        Toast.LENGTH_SHORT);
                toast.show();
                break;
        }
        if(getSupportActionBar()!= null){
            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        }
    }

}

RecipeFragment.java

package com.brewguide.android.coffeebrewguide;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class RecipeFragment extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_recipe_layout, container, false);
    }
    public RecipeFragment(){}

}

Upvotes: 0

Views: 30

Answers (1)

OneCricketeer
OneCricketeer

Reputation: 191728

It's not just the Fragment import... You also need the Support Fragments Manager instead of these 

import android.app.FragmentManager;
import android.app.FragmentTransaction;

You need getSupportFragmentManager() instead of getFragmentManager() when using the Support Fragments

Upvotes: 2

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