com.app.chatbot.fragment.BaseFragment.java Source code

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Here is the source code for com.app.chatbot.fragment.BaseFragment.java

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/*
 * Copyright (C) 2014 Pedro Vicente Gmez Snchez.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.app.chatbot.fragment;

import android.content.Context;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.app.chatbot.CBApplication;
import com.app.chatbot.component.ApplicationComponent;

import butterknife.ButterKnife;
import butterknife.Unbinder;

/**
 * Base fragment created to be extended by every fragment in this application. This class provides
 * dependency injection configuration, ButterKnife Android library configuration and some methods
 * common to every fragment.
 *
 * @author Niranjan
 * @since 1/7/17
 */
public abstract class BaseFragment extends Fragment {

    private Unbinder unbinder;

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        injectComponent(((CBApplication) getActivity().getApplication()).getComponent());
        initializePresenter();

    }

    protected abstract void initializePresenter();

    protected abstract void injectComponent(ApplicationComponent component);

    @Override
    public void onAttach(Context activity) {
        super.onAttach(activity);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(getFragmentLayout(), container, false);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH
                && Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
            view.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
        }
        injectViews(view);
        return view;
    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
    }

    /**
     * Every fragment has to inflate a layout in the onCreateView method. We have added this method to
     * avoid duplicate inflate code in every fragment. You only have to return the layout to
     * inflate in this method when extends BaseFragment.
     */
    abstract int getFragmentLayout();

    /**
     * Replace every field annotated with ButterKnife annotations like @BindView with the proper
     * value.
     *
     * @param view to extract each widget injected in the fragment.
     */
    private void injectViews(final View view) {
        unbinder = ButterKnife.bind(this, view);
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        unbinder.unbind();
    }
}