標籤:cocos2d
/*
* 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 org.cocos2d;
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;
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;
public class Cocos2D extends ListActivity {//這個類用了ListActivity
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState); //繼承 ListActivity 的 onCreate方法 //以下是設定list裡的適配器
setListAdapter(new SimpleAdapter(this,//新的簡單適配器,運用了自己的上下文
(List<Map<String, ?>>)getData("org.cocos2d.tests"),//getData是個方法,getData(String)往下看有方法的聲明
android.R.layout.simple_list_item_1, new String[]{"title"},
new int[]{android.R.id.text1}));
getListView().setTextFilterEnabled(true);//啟用過濾視窗
}
protected List<?> getData(String prefix) {//即上述方法
List<Map<String,?>> myData = new ArrayList<Map<String,?>>();//一個用來盛放map的list,map立盛放String
Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);//意圖指定跳到系統案頭
mainIntent.addCategory(Intent.CATEGORY_TEST);//供測試使用
PackageManager pm = getPackageManager();//包控制器,用來獲得現在有的進程
List<ResolveInfo> list = pm.queryIntentActivities(mainIntent, 0);//通過Intent尋找相關的Activity,更準確
if (null == list)//沒找到那個測試意圖
return myData;//就結束
/* 以下是個沒有被使用的方法用來分割字串,用/
String[] prefixPath;
if (prefix.equals("")) {
prefixPath = null;
} else {
prefixPath = prefix.split("/");
}*/
int len = list.size();//得到list的長度
// Map<String, Boolean> entries = new HashMap<String, Boolean>();//一個沒有被使用的map,用了雜湊類型的map
for (int i = 0; i < len; i++) {
ResolveInfo info = list.get(i);//用來迴圈剛才得到的那個list
String activityName = info.activityInfo.name;//得到activity的名字
if (prefix.length() == 0 || activityName.startsWith(prefix)) {//如果要尋找的那個activity的包名長度為0或者與我們要找的那個名字是以這個開頭的
String[] labelPath = activityName.split("\\.");//把包名用.分開
String nextLabel = labelPath[labelPath.length - 1];//得到最後一個.後面的名字,即類名
addItem(myData, nextLabel, activityIntent(//現在把他添加到mydata的集合,這個方法在後面會出現,就是分別把各種資訊用map區分了
info.activityInfo.applicationInfo.packageName,
info.activityInfo.name));
}
}
Collections.sort(myData, sDisplayNameComparator);//Collections是個很有用的集合,其中有個sort是用來排序的,參數中sDisplayNameComparator是個比較方法
return myData;
}
//下面這個定義,乍一看是方法,其實是個欄位,定義一個比較方法的引用
private final static Comparator<Map<String, ?>> sDisplayNameComparator = new Comparator<Map<String, ?>>() {//對那個引用的實現
private final Collator collator = Collator.getInstance();//新疆一個集合
public int compare(Map<String,?> map1, Map<String,?> map2) {//兩個的比較規則
return collator.compare(map1.get("title"), map2.get("title"));//就是比較他們字元的那種方法,就是從左至右一個一個字母,比ascll碼
}
};
protected Intent activityIntent(String pkg, String componentName) {
Intent result = new Intent();
result.setClassName(pkg, componentName);//設定意圖從哪個包到哪個類
return result;
}
protected Intent browserIntent(String path) {
Intent result = new Intent();
result.setClass(this, Cocos2D.class);//設定從哪個class到哪
result.putExtra("org.cocos2d.tests.Path", path);//加一個額外的變數
return result;
}
protected void addItem(List<Map<String,?>> data, String name, Intent intent) {
Map<String, Object> temp = new HashMap<String, Object>();
temp.put("title", name);
temp.put("intent", intent);
data.add(temp);//對data添加項目
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
Map<String,?> map = (Map<String,?>) l.getItemAtPosition(position);//得到點擊了哪個包
Intent intent = (Intent) map.get("intent");//找到那個類全名
startActivity(intent);//開啟那個類
}
}
Cocos2D-Android-1之源碼詳解:1.Cocos2D