net.potterpcs.recipebook.HelpDialog.java Source code

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Here is the source code for net.potterpcs.recipebook.HelpDialog.java

Source

/*
 *    Copyright 2012 Michael Potter
 *
 * 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.
 * 
 */

/*
 * HelpDialog.java - Popup to display application help pages. 
 */

package net.potterpcs.recipebook;

import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebView;

public class HelpDialog extends DialogFragment {
    // Tag for logging
    private static final String TAG = "HelpDialog";

    // Bundle extra
    public static final String HELP_RESOURCE = "help-resource";

    // Name of the help page
    private String helpFile;

    static HelpDialog newInstance(String uri) {
        // Standard Android-style factory method
        HelpDialog hd = new HelpDialog();

        Bundle args = new Bundle();
        args.putString(HELP_RESOURCE, uri);
        hd.setArguments(args);

        return hd;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setStyle(STYLE_NO_TITLE, 0);
        helpFile = getArguments().getString(HELP_RESOURCE);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.helpdialog, container);
        WebView web = (WebView) v.findViewById(R.id.helpwebview);

        // All we have to do is give the WebView a location, and it does
        // all the work for us.
        if (helpFile != null) {
            String baseUrl = "file:///android_res/raw/";
            String url = baseUrl + helpFile + ".html";
            Log.v(TAG, url);
            web.loadUrl(url);
        }

        return v;
    }
}