net.simonvt.cathode.ui.dialog.ListDialog.java Source code

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Here is the source code for net.simonvt.cathode.ui.dialog.ListDialog.java

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/*
 * Copyright (C) 2014 Simon Vig Therkildsen
 *
 * 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 net.simonvt.cathode.ui.dialog;

import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.os.Parcel;
import android.os.Parcelable;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.Fragment;
import java.util.ArrayList;

public class ListDialog extends DialogFragment {

    public interface Callback {
        void onItemSelected(int id);
    }

    public static class Item implements Parcelable {

        int id;

        int text;

        public Item(Parcel in) {
            id = in.readInt();
            text = in.readInt();
        }

        public Item(int id, int text) {
            this.id = id;
            this.text = text;
        }

        public int getId() {
            return id;
        }

        public int getText() {
            return text;
        }

        public int describeContents() {
            return 0;
        }

        public void writeToParcel(Parcel out, int flags) {
            out.writeInt(id);
            out.writeInt(id);
        }

        public static final Parcelable.Creator<Item> CREATOR = new Parcelable.Creator<Item>() {
            public Item createFromParcel(Parcel in) {
                return new Item(in);
            }

            public Item[] newArray(int size) {
                return new Item[size];
            }
        };
    }

    private static final String ARG_TITLE = "net.simonvt.cathode.ui.dialog.ListDialog.title";
    private static final String ARG_ITEMS = "net.simonvt.cathode.ui.dialog.ListDialog.items";

    public static ListDialog newInstance(int title, ArrayList<Item> items, Fragment target) {
        ListDialog dialog = new ListDialog();
        dialog.setTargetFragment(target, 0);

        Bundle args = new Bundle();
        args.putInt(ARG_TITLE, title);
        args.putParcelableArrayList(ARG_ITEMS, items);
        dialog.setArguments(args);

        return dialog;
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        final Callback callback = (Callback) getTargetFragment();
        final int title = getArguments().getInt(ARG_TITLE);
        final ArrayList<Item> listItems = getArguments().getParcelableArrayList(ARG_ITEMS);

        CharSequence[] items = new CharSequence[listItems.size()];
        for (int i = 0, size = listItems.size(); i < size; i++) {
            String text = getResources().getString(listItems.get(i).text);
            items[i] = text;
        }

        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity())
                .setItems(items, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        callback.onItemSelected(listItems.get(which).getId());
                    }
                }).setTitle(title);

        return builder.create();
    }
}