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/*
* 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.
*/
package com.example.android.apis;
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 ApiDemos extends ListActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent = getIntent();
String path = intent.getStringExtra("com.example.android.apis.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, ApiDemos.class);
result.putExtra("com.example.android.apis.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);
}
}
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