com.lkunic.libs.apptoolbox.twopane.fragments.ItemDetailFragment.java Source code

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Here is the source code for com.lkunic.libs.apptoolbox.twopane.fragments.ItemDetailFragment.java

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/**
 * Copyright (c) Luka Kunic 2015 / "ItemDetailFragment.java"
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software to deal in the software without restriction, including without
 * limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, provided that the licence notice is included
 * in all copies or substantial portions of the software.
 *
 * Created by lkunic on 08/04/2015.
 */
package com.lkunic.libs.apptoolbox.twopane.fragments;

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

/**
 * Base class for a detail fragment in the TwoPane master-detail flow.
 */
public abstract class ItemDetailFragment extends Fragment {
    // The fragment argument representing the item id that this fragment displays
    public static final String ARG_ITEM_ID = "item_id";

    // Id of the item that was selected in the list
    private long mItemId;

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

        if (savedInstanceState != null && savedInstanceState.containsKey(ARG_ITEM_ID)) {
            // Load the item id from the saved instance
            mItemId = savedInstanceState.getLong(ARG_ITEM_ID);
        }
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);

        // Save the item id so that it can be loaded when the fragment is recreated
        outState.putLong(ARG_ITEM_ID, mItemId);
    }

    /**
     * Refresh the fragment content. Assumes a new item id was set.
     */
    public void refreshContent() {
        View view = getView();

        if (view != null) {
            setupContent(view);
        }
    }

    /**
     * Returns the item id that was passed in by the list activity.
     */
    protected long getItemId() {
        return mItemId;
    }

    /**
     * Set the id of the item that will be displayed in this fragment.
     */
    public void setItemId(long id) {
        mItemId = id;
    }

    // region Abstract methods

    /**
     * Use to get the item data from the database.
     */
    protected abstract void getItemData();

    /**
     * Setup the fragment content.
     */
    protected abstract void setupContent(View view);

    // endregion
}