msa.arena.base.BaseFragment.java Source code

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Here is the source code for msa.arena.base.BaseFragment.java

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/*
 * Copyright 2017, Abhi Muktheeswarar
 *
 * 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 msa.arena.base;

import android.arch.lifecycle.ViewModelProvider;
import android.arch.lifecycle.ViewModelProviders;
import android.support.v4.app.Fragment;
import android.util.DisplayMetrics;
import android.widget.Toast;

import com.squareup.leakcanary.RefWatcher;

import javax.inject.Inject;

import io.reactivex.disposables.CompositeDisposable;
import msa.arena.ArenaApplication;
import msa.arena.BuildConfig;
import rx.subscriptions.CompositeSubscription;

/**
 * Created by Abhimuktheeswarar on 04-05-2017
 */

/** Base {@link Fragment} class for every fragment in this application. */
public abstract class BaseFragment extends Fragment {

    protected final String TAG = this.getClass().getSimpleName();

    @Inject
    protected ViewModelProvider.Factory viewModelFactory;
    protected CompositeDisposable compositeDisposable = new CompositeDisposable();
    protected CompositeSubscription compositeSubscription = new CompositeSubscription();

    protected <V extends BaseViewModel> V getViewModelF(Class<V> viewModelClass) {
        return ViewModelProviders.of(this, viewModelFactory).get(viewModelClass);
    }

    protected <V extends BaseViewModel> V getViewModelA(Class<V> viewModelClass) {
        return ViewModelProviders.of(getActivity(), viewModelFactory).get(viewModelClass);
    }

    @Override
    public void onStart() {
        super.onStart();
        bind();
    }

    @Override
    public void onStop() {
        super.onStop();
        unBind();
        compositeDisposable.clear();
        compositeSubscription.clear();
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        if (BuildConfig.DEBUG) {
            RefWatcher refWatcher = ArenaApplication.getRefWatcher(getActivity());
            refWatcher.watch(this);
        }
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        compositeDisposable.dispose();
        compositeSubscription.unsubscribe();
    }

    /**
     * Shows a {@link Toast} message.
     *
     * @param message An string representing a message to be shown.
     */
    protected void showToastMessage(String message) {
        if (message != null && message.length() > 0)
            Toast.makeText(getActivity(), message, Toast.LENGTH_SHORT).show();
    }

    protected int dp2px(float dp) {
        DisplayMetrics displayMetrics = getResources().getDisplayMetrics();
        return Math.round(dp * (displayMetrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT));
    }

    protected int pxToDp(int px) {
        DisplayMetrics displayMetrics = getContext().getResources().getDisplayMetrics();
        return Math.round(px / (displayMetrics.xdpi / DisplayMetrics.DENSITY_DEFAULT));
    }

    protected abstract void bind();

    protected abstract void unBind();
}