com.google.android.apps.mytracks.fragments.ConfirmDialogFragment.java Source code

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Here is the source code for com.google.android.apps.mytracks.fragments.ConfirmDialogFragment.java

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/*
 * Copyright 2012 Google Inc.
 *
 * 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.google.android.apps.mytracks.fragments;

import com.google.android.apps.mytracks.util.PreferencesUtils;
import com.google.android.maps.mytracks.R;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import android.widget.CheckBox;
import android.widget.TextView;

/**
 * A DialogFragment to confirm an action.
 * 
 * @author Jimmy Shih
 */
public class ConfirmDialogFragment extends DialogFragment {

    /**
     * Interface for caller of this dialog fragment.
     * 
     * @author Jimmy Shih
     */
    public interface ConfirmCaller {

        /**
         * Called when confirm is done.
         */
        public void onConfirmDone(int confirmId, long trackId);
    }

    public static final String CONFIRM_DIALOG_TAG = "confirmDialog";

    private static final String KEY_CONFIRM_ID = "confirmId";
    private static final String KEY_DEFAULT_VALUE = "defaultValue";
    private static final String KEY_MESSAGE = "message";
    private static final String KEY_TRACK_ID = "trackId";

    private CheckBox checkBox;

    public static ConfirmDialogFragment newInstance(int confirmId, boolean defaultValue, CharSequence message,
            long trackId) {
        Bundle bundle = new Bundle();
        bundle.putInt(KEY_CONFIRM_ID, confirmId);
        bundle.putBoolean(KEY_DEFAULT_VALUE, defaultValue);
        bundle.putCharSequence(KEY_MESSAGE, message);
        bundle.putLong(KEY_TRACK_ID, trackId);

        ConfirmDialogFragment confirmDialogFragment = new ConfirmDialogFragment();
        confirmDialogFragment.setArguments(bundle);
        return confirmDialogFragment;
    }

    private ConfirmCaller caller;
    private FragmentActivity fragmentActivity;

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        try {
            caller = (ConfirmCaller) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(
                    activity.toString() + " must implement " + ConfirmCaller.class.getSimpleName());
        }
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        int confirmId = getArguments().getInt(KEY_CONFIRM_ID);
        boolean defaultValue = getArguments().getBoolean(KEY_DEFAULT_VALUE);
        fragmentActivity = getActivity();
        if (!PreferencesUtils.getBoolean(fragmentActivity, confirmId, defaultValue)) {
            long trackId = getArguments().getLong(KEY_TRACK_ID);
            dismiss();
            caller.onConfirmDone(confirmId, trackId);
        }
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        View view = fragmentActivity.getLayoutInflater().inflate(R.layout.confirm_dialog, null);
        TextView textView = (TextView) view.findViewById(R.id.confirm_dialog_message);
        textView.setText(getArguments().getCharSequence(KEY_MESSAGE));
        checkBox = (CheckBox) view.findViewById(R.id.confirm_dialog_check_box);

        return new AlertDialog.Builder(fragmentActivity).setNegativeButton(android.R.string.cancel, null)
                .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        int confirmId = getArguments().getInt(KEY_CONFIRM_ID);
                        long trackId = getArguments().getLong(KEY_TRACK_ID);
                        PreferencesUtils.setBoolean(fragmentActivity, confirmId, !checkBox.isChecked());
                        caller.onConfirmDone(confirmId, trackId);
                    }
                }).setTitle(R.string.generic_confirm_title).setView(view).create();
    }
}