RoboSupportFragment.java

/*
 * Copyright (c) 2015 PocketHub
 *
 * 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.github.pockethub.android.ui.roboactivities;

import android.app.Activity;
import android.os.Bundle;
import android.support.annotation.CallSuper;
import android.support.v4.app.Fragment;
import android.view.View;

import com.trello.rxlifecycle2.LifecycleProvider;
import com.trello.rxlifecycle2.LifecycleTransformer;
import com.trello.rxlifecycle2.RxLifecycle;
import com.trello.rxlifecycle2.android.FragmentEvent;
import com.trello.rxlifecycle2.android.RxLifecycleAndroid;

import io.reactivex.Observable;
import io.reactivex.subjects.BehaviorSubject;
import roboguice.RoboGuice;

public abstract class RoboSupportFragment extends Fragment implements LifecycleProvider<FragmentEvent> {

    private final BehaviorSubject<FragmentEvent> lifecycleSubject = BehaviorSubject.create();

    @Override
    public final Observable<FragmentEvent> lifecycle() {
        return lifecycleSubject;
    }

    @Override
    public final <T> LifecycleTransformer<T> bindUntilEvent(FragmentEvent event) {
        return RxLifecycle.bindUntilEvent(lifecycleSubject, event);
    }

    @Override
    public final <T> LifecycleTransformer<T> bindToLifecycle() {
        return RxLifecycleAndroid.bindFragment(lifecycleSubject);
    }

    @Override
    @CallSuper
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        lifecycleSubject.onNext(FragmentEvent.ATTACH);
    }

    @Override
    @CallSuper
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        RoboGuice.getInjector(getActivity()).injectMembersWithoutViews(this);
        lifecycleSubject.onNext(FragmentEvent.CREATE);
    }

    @Override
    @CallSuper
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        RoboGuice.getInjector(getActivity()).injectViewMembers(this);
        lifecycleSubject.onNext(FragmentEvent.CREATE_VIEW);
    }

    @Override
    @CallSuper
    public void onStart() {
        super.onStart();
        lifecycleSubject.onNext(FragmentEvent.START);
    }

    @Override
    @CallSuper
    public void onResume() {
        super.onResume();
        lifecycleSubject.onNext(FragmentEvent.RESUME);
    }

    @Override
    @CallSuper
    public void onPause() {
        lifecycleSubject.onNext(FragmentEvent.PAUSE);
        super.onPause();
    }

    @Override
    @CallSuper
    public void onStop() {
        lifecycleSubject.onNext(FragmentEvent.STOP);
        super.onStop();
    }

    @Override
    @CallSuper
    public void onDestroyView() {
        lifecycleSubject.onNext(FragmentEvent.DESTROY_VIEW);
        super.onDestroyView();
    }

    @Override
    @CallSuper
    public void onDestroy() {
        lifecycleSubject.onNext(FragmentEvent.DESTROY);
        super.onDestroy();
    }

    @Override
    @CallSuper
    public void onDetach() {
        lifecycleSubject.onNext(FragmentEvent.DETACH);
        super.onDetach();
    }
}