Subversion Repositories ES

package ch.ffhs.converter;

/*

 * Copyright (C) 2007 The Android Open Source Project

 *

 * 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.

 */

import android.app.ListActivity;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.content.pm.ResolveInfo;

import android.os.Bundle;

import android.view.View;

import android.widget.ListView;

import android.widget.SimpleAdapter;

import java.text.Collator;

import java.util.ArrayList;

import java.util.Collections;

import java.util.Comparator;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

public class MenuActivity extends ListActivity {

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        Intent intent = getIntent();

        String path = intent.getStringExtra("ch.ffhs.converter.Path");

        if (path == null) {

            path = "";

        }

        setListAdapter(new SimpleAdapter(this, getData(path),

                android.R.layout.simple_list_item_1, new String[] { "title" },

                new int[] { android.R.id.text1 }));

        getListView().setTextFilterEnabled(true);

    }

    protected List getData(String prefix) {

        List<Map> myData = new ArrayList<Map>();

        Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);

        mainIntent.addCategory(Intent.CATEGORY_SAMPLE_CODE);

        PackageManager pm = getPackageManager();

        List<ResolveInfo> list = pm.queryIntentActivities(mainIntent, 0);

        if (null == list)

            return myData;

        String[] prefixPath;

        if (prefix.equals("")) {

            prefixPath = null;

        } else {

            prefixPath = prefix.split("/");

        }

        int len = list.size();

        Map<String, Boolean> entries = new HashMap<String, Boolean>();

        for (int i = 0; i < len; i++) {

            ResolveInfo info = list.get(i);

            CharSequence labelSeq = info.loadLabel(pm);

            String label = labelSeq != null

                    ? labelSeq.toString()

                    : info.activityInfo.name;

            if (prefix.length() == 0 || label.startsWith(prefix)) {

                String[] labelPath = label.split("/");

                String nextLabel = prefixPath == null ? labelPath[0] : labelPath[prefixPath.length];

                if ((prefixPath != null ? prefixPath.length : 0) == labelPath.length - 1) {

                    addItem(myData, nextLabel, activityIntent(

                            info.activityInfo.applicationInfo.packageName,

                            info.activityInfo.name));

                } else {

                    if (entries.get(nextLabel) == null) {

                        addItem(myData, nextLabel, browseIntent(prefix.equals("") ? nextLabel : prefix + "/" + nextLabel));

                        entries.put(nextLabel, true);

                    }

                }

            }

        }

        Collections.sort(myData, sDisplayNameComparator);

        return myData;

    }

    private final static Comparator<Map> sDisplayNameComparator = new Comparator<Map>() {

        private final Collator   collator = Collator.getInstance();

        public int compare(Map map1, Map map2) {

            return collator.compare(map1.get("title"), map2.get("title"));

        }

    };

    protected Intent activityIntent(String pkg, String componentName) {

        Intent result = new Intent();

        result.setClassName(pkg, componentName);

        return result;

    }

    protected Intent browseIntent(String path) {

        Intent result = new Intent();

        result.setClass(this, MenuActivity.class);

        result.putExtra("ch.ffhs.converter.Path", path);

        return result;

    }

    protected void addItem(List<Map> data, String name, Intent intent) {

        Map<String, Object> temp = new HashMap<String, Object>();

        temp.put("title", name);

        temp.put("intent", intent);

        data.add(temp);

    }

    @Override

    protected void onListItemClick(ListView l, View v, int position, long id) {

        Map map = (Map) l.getItemAtPosition(position);

        Intent intent = (Intent) map.get("intent");

        startActivity(intent);

    }

}