com.jsw.MngProductDatabase.Fragments.ListProduct_Fragment.java Source code

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Here is the source code for com.jsw.MngProductDatabase.Fragments.ListProduct_Fragment.java

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package com.jsw.MngProductDatabase.Fragments;

/*
 * Copyright (c) 2016 Jos Luis del Pino Gallardo.
 *
 *  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.
 *
 *  jose.gallardo994@gmail.com
 */

import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v4.app.ListFragment;
import android.support.v7.widget.PopupMenu;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.TextView;

import com.jsw.MngProductDatabase.Adapter.ProductAdapter;
import com.jsw.MngProductDatabase.Model.Product;
import com.jsw.MngProductDatabase.Presenter.ProductPresenter;
import com.jsw.MngProductDatabase.R;
import com.jsw.MngProductDatabase.interfaces.IProduct;

import java.util.List;

public class ListProduct_Fragment extends ListFragment implements IProduct, ProductPresenter.View {

    public static Product p;
    PopupMenu popup;
    private ProductAdapter mAdapter;
    private ListView mList;
    private int mItemPos;
    private AdapterView<?> mItemParent;
    private TextView mEmpty;
    private FloatingActionButton mFab;
    private ProgressDialog mProgress;
    private ProductPresenter mPresenter;

    private IListProductListener mCallback;

    public static ListProduct_Fragment getInstance(Bundle args) {
        ListProduct_Fragment f = new ListProduct_Fragment();
        f.setArguments(args);
        return f;
    }

    @Override
    public void onCreate(Bundle savedInstance) {
        super.onCreate(savedInstance);
        mAdapter = new ProductAdapter(getContext());
        mPresenter = new ProductPresenter(this);
        setRetainInstance(true);

        /**
         * Esta opcion le dice a la actitivity que este fragment tiene su propio menu y llama a todos
         * los mtodos de los fragments.
         */
        setHasOptionsMenu(true);
    }

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle args) {
    super.onCreateView(inflater, container,  args);
    View rootView = inflater.inflate(R.layout.fragment_list_product, container, false);
    mEmpty = (TextView)rootView.findViewById(android.R.id.empty);
    mFab = (FloatingActionButton)rootView.findViewById(R.id.fab_aadir);
    mProgress = new ProgressDialog(getContext());
    return rootView;
}

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        inflater.inflate(R.menu.menu_listproduct, menu);
        super.onCreateOptionsMenu(menu, inflater);
    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        mList = getListView();
        setListAdapter(mAdapter);

        mList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int i, long l) {
                Bundle potatoe = new Bundle();
                potatoe.putParcelable(PRODUCT_KEY, (Product) parent.getItemAtPosition(i));
                mCallback.showManageProduct(potatoe);
            }
        });

        mList.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(AdapterView<?> adapterView, View view, int i, long l) {
                mItemParent = adapterView;
                mItemPos = i;

                popup = new PopupMenu(getContext(), view);
                popup.setGravity(Gravity.END);
                popup.getMenuInflater().inflate(R.menu.delete_menu, popup.getMenu());

                popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
                    @Override
                    public boolean onMenuItemClick(MenuItem item) {
                        p = (Product) mItemParent.getItemAtPosition(mItemPos);
                        mCallback.showDeletePopUp(p);
                        return true;
                    }
                });
                popup.show();
                return true;
            }
        });

        mFab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                mCallback.showManageProduct(null);
            }
        });
        mPresenter.getAllProducts();
    }

    public void showProduct(List<Product> products) {

        if (products != null)
            mAdapter.replace(products);
    }

    private void hideList(boolean hide) {
        mList.setVisibility(hide ? View.VISIBLE : View.GONE);
        mEmpty.setVisibility(hide ? View.VISIBLE : View.GONE);
    }

    public void showEmptyState(boolean show) {
        hideList(show);
    }

    public void showMessage(String message, final Product product) {
        Snackbar.make(getView(), "Producto Eliminado", Snackbar.LENGTH_LONG)
                .setAction("UNDO", new View.OnClickListener() {
                    @Override //Aqui eliminamos si o si, si clicka en undo, volvemos a aadir.
                    public void onClick(View view) {
                        mCallback.undoDeleting(product);
                    }
                }).show();
    }

    @Override
    public ProgressDialog getProgressDialog() {
        mProgress.setMessage("Cargando la base de datos");
        mProgress.setTitle("Conectando.");
        mProgress.setCancelable(false);
        return mProgress;
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        mAdapter = null;
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        mCallback = (IListProductListener) activity;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case R.id.action_sort_product:
            mAdapter.sortAlphabetically();
            break;
        }

        return super.onOptionsItemSelected(item);
    }

    public interface IListProductListener {
        void showManageProduct(Bundle bundle);

        void showDeletePopUp(Product product);

        void undoDeleting(Product product);
    }
}