open-keychain/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/HelpFragmentAbout.java
2013-01-16 14:31:16 +01:00

106 lines
3.7 KiB
Java

/*
* Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
*
* 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 org.sufficientlysecure.keychain.ui;
import java.io.IOException;
import java.io.InputStream;
import net.nightwhistler.htmlspanner.HtmlSpanner;
import net.nightwhistler.htmlspanner.JellyBeanSpanFixTextView;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.helper.OtherHelper;
import org.sufficientlysecure.keychain.util.Log;
import org.sufficientlysecure.keychain.R;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Bundle;
import android.text.method.LinkMovementMethod;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import com.actionbarsherlock.app.SherlockFragment;
public class HelpFragmentAbout extends SherlockFragment {
/**
* Workaround for Android Bug. See
* http://stackoverflow.com/questions/8748064/starting-activity-from
* -fragment-causes-nullpointerexception
*/
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
setUserVisibleHint(true);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.help_fragment_about, container, false);
// load html from html file from /res/raw
InputStream inputStreamText = getResources().openRawResource(R.raw.help_about);
TextView versionText = (TextView) view.findViewById(R.id.help_about_version);
versionText.setText(getString(R.string.help_about_version) + " " + getVersion());
JellyBeanSpanFixTextView aboutTextView = (JellyBeanSpanFixTextView) view
.findViewById(R.id.help_about_text);
// load html into textview
HtmlSpanner htmlSpanner = new HtmlSpanner();
htmlSpanner.setStripExtraWhiteSpace(true);
try {
aboutTextView.setText(htmlSpanner.fromHtml(inputStreamText));
} catch (IOException e) {
Log.e(Constants.TAG, "Error while reading raw resources as stream", e);
}
// make links work
aboutTextView.setMovementMethod(LinkMovementMethod.getInstance());
// no flickering when clicking textview for Android < 4
aboutTextView.setTextColor(getResources().getColor(android.R.color.black));
return view;
}
/**
* Get the current package version.
*
* @return The current version.
*/
private String getVersion() {
String result = "";
try {
PackageManager manager = getActivity().getPackageManager();
PackageInfo info = manager.getPackageInfo(getActivity().getPackageName(), 0);
result = String.format("%s (%s)", info.versionName, info.versionCode);
} catch (NameNotFoundException e) {
Log.w(Constants.TAG, "Unable to get application version: " + e.getMessage());
result = "Unable to get application version.";
}
return result;
}
}