获取android中正在运行应用程序的列表

最近想做一个任务管理器练一练手，第一道题就是获取手机中正在运行的程序。后来在网上找了一下资料，终于有了眉目。废话不多说！看代码。

ActivityMain.java

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1. public class ActivityMainextends ListActivity { 
2.     @Override 
3.     public void onCreate(Bundle savedInstanceState) { 
4.         super.onCreate(savedInstanceState); 
5.         requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); 
6.         
7.        List<Programe> list = getRunningProcess(); 
8.        ListAdapter adapter = new ListAdapter(list,this); 
9.        getListView().setAdapter(adapter); 
10.     } 
11.      
12.     //正在运行的 
13.     public List<Programe> getRunningProcess(){ 
14.         PackagesInfo pi = new PackagesInfo(this); 
15.          
16.         ActivityManager am = (ActivityManager) getSystemService(ACTIVITY_SERVICE); 
17.         //获取正在运行的应用 
18.         List<RunningAppProcessInfo> run = am.getRunningAppProcesses(); 
19.         //获取包管理器，在这里主要通过包名获取程序的图标和程序名 
20.         PackageManager pm =this.getPackageManager(); 
21.         List<Programe> list = new ArrayList<Programe>();     
22.          
23.         for(RunningAppProcessInfo ra : run){ 
24.             //这里主要是过滤系统的应用和电话应用，当然你也可以把它注释掉。 
25.             if(ra.processName.equals("system") || ra.processName.equals("com.android.phone")){ 
26.                 continue; 
27.             } 
28.              
29.             Programe  pr = new Programe(); 
30.             pr.setIcon(pi.getInfo(ra.processName).loadIcon(pm)); 
31.             pr.setName(pi.getInfo(ra.processName).loadLabel(pm).toString()); 
32.             System.out.println(pi.getInfo(ra.processName).loadLabel(pm).toString()); 
33.             list.add(pr); 
34.         } 
35.         return list; 
36.     } 
37.      
38. } 

public class ActivityMain extends ListActivity {@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); List<Programe> list = getRunningProcess(); ListAdapter adapter = new ListAdapter(list,this); getListView().setAdapter(adapter); }//正在运行的public List<Programe> getRunningProcess(){PackagesInfo pi = new PackagesInfo(this);ActivityManager am = (ActivityManager) getSystemService(ACTIVITY_SERVICE);//获取正在运行的应用List<RunningAppProcessInfo> run = am.getRunningAppProcesses();//获取包管理器，在这里主要通过包名获取程序的图标和程序名PackageManager pm =this.getPackageManager();List<Programe> list = new ArrayList<Programe>();for(RunningAppProcessInfo ra : run){//这里主要是过滤系统的应用和电话应用，当然你也可以把它注释掉。if(ra.processName.equals("system") || ra.processName.equals("com.android.phone")){continue;}Programe pr = new Programe();pr.setIcon(pi.getInfo(ra.processName).loadIcon(pm));pr.setName(pi.getInfo(ra.processName).loadLabel(pm).toString());System.out.println(pi.getInfo(ra.processName).loadLabel(pm).toString());list.add(pr);}return list;}}

ListAdapter.java

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1. public class ListAdapterextends BaseAdapter { 
2.     List<Programe> list = new ArrayList<Programe>(); 
3.     LayoutInflater la; 
4.     Context context; 
5.      
6.     public ListAdapter(List<Programe> list ,Context context){ 
7.         this.list = list; 
8.         this.context = context; 
9.     } 
10.      
11.     @Override 
12.     public int getCount() { 
13.         // TODO Auto-generated method stub 
14.         return list.size(); 
15.     } 
16.     @Override 
17.     public Object getItem(int position) { 
18.         // TODO Auto-generated method stub 
19.         return list.get(position); 
20.     } 
21.     @Override 
22.     public long getItemId(int position) { 
23.         // TODO Auto-generated method stub 
24.         return position; 
25.     } 
26.     @Override 
27.     public View getView(int position, View convertView, ViewGroup parent) { 
28.         ViewHolder holder; 
29.         if(convertView ==null) 
30.         {   
31.             la = LayoutInflater.from(context); 
32.             convertView=la.inflate(R.layout.list_item, null); 
33.              
34.             holder = new ViewHolder(); 
35.             holder.imgage=(ImageView) convertView.findViewById(R.id.image); 
36.             holder.text = (TextView) convertView.findViewById(R.id.text); 
37.              
38.             convertView.setTag(holder); 
39.         }else{ 
40.             holder = (ViewHolder) convertView.getTag(); 
41.         } 
42.          final Programe pr = (Programe)list.get(position); 
43.         //设置图标 
44.         holder.imgage.setImageDrawable(pr.getIcon()); 
45.         //设置程序名 
46.         holder.text.setText(pr.getName()); 
47.          
48.         return convertView; 
49.     } 
50. } 
51. class ViewHolder{ 
52.      TextView text; 
53.     ImageView imgage; 
54. } 

public class ListAdapter extends BaseAdapter {List<Programe> list = new ArrayList<Programe>();LayoutInflater la;Context context;public ListAdapter(List<Programe> list ,Context context){this.list = list;this.context = context;}@Overridepublic int getCount() {// TODO Auto-generated method stubreturn list.size();}@Overridepublic Object getItem(int position) {// TODO Auto-generated method stubreturn list.get(position);}@Overridepublic long getItemId(int position) {// TODO Auto-generated method stubreturn position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {ViewHolder holder;if(convertView == null){ la = LayoutInflater.from(context);convertView=la.inflate(R.layout.list_item, null);holder = new ViewHolder();holder.imgage=(ImageView) convertView.findViewById(R.id.image);holder.text = (TextView) convertView.findViewById(R.id.text);convertView.setTag(holder);}else{holder = (ViewHolder) convertView.getTag();} final Programe pr = (Programe)list.get(position);//设置图标holder.imgage.setImageDrawable(pr.getIcon());//设置程序名holder.text.setText(pr.getName());return convertView;}}class ViewHolder{ TextView text;ImageView imgage;}

PackagesInfo.java

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1. public class PackagesInfo { 
2.     private List<ApplicationInfo> appList; 
3.      
4.     public PackagesInfo(Context context){ 
5.         //通包管理器，检索所有的应用程序（甚至卸载的）与数据目录 
6.         PackageManager pm = context.getApplicationContext().getPackageManager(); 
7.         appList = pm.getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES); 
8.     } 
9.      
10.      
11.      
12.     /**
13.      * 通过一个程序名返回该程序的一个Application对象。
14.      * @param name  程序名
15.      * @return  ApplicationInfo
16.      */ 
17.      
18.     public ApplicationInfo getInfo(String name){ 
19.         if(name == null){ 
20.             return null; 
21.         } 
22.         for(ApplicationInfo appinfo : appList){ 
23.             if(name.equals(appinfo.processName)){ 
24.                 return appinfo; 
25.             } 
26.         } 
27.         return null; 
28.     } 
29.      
30. } 

public class PackagesInfo {private List<ApplicationInfo> appList;public PackagesInfo(Context context){//通包管理器，检索所有的应用程序（甚至卸载的）与数据目录PackageManager pm = context.getApplicationContext().getPackageManager();appList = pm.getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES);}/** * 通过一个程序名返回该程序的一个Application对象。 * @param name程序名 * @returnApplicationInfo */public ApplicationInfo getInfo(String name){if(name == null){return null;}for(ApplicationInfo appinfo : appList){if(name.equals(appinfo.processName)){return appinfo;}}return null;}}

Programe.java

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1. public class Programe { 
2.     //图标 
3.     private Drawable icon;   
4.     //程序名 
5.     private String name; 
6.      
7.     public Drawable getIcon() { 
8.         return icon; 
9.     } 
10.     public void setIcon(Drawable icon) { 
11.         this.icon = icon; 
12.     } 
13.     public String getName() { 
14.         return name; 
15.     } 
16.     public void setName(String name) { 
17.         this.name = name; 
18.     } 
19.      
20. } 

public class Programe {//图标private Drawable icon;//程序名private String name;public Drawable getIcon() {return icon;}public void setIcon(Drawable icon) {this.icon = icon;}public String getName() {return name;}public void setName(String name) {this.name = name;}}

list_item.xml

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1. <?xmlversion="1.0"encoding="UTF-8"?> 
2. <LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android" 
3.     android:orientation="horizontal" 
4.     android:layout_width="wrap_content" 
5.     android:layout_height="wrap_content" 
6.    > 
7.     <ImageView 
8.         android:id="@+id/image" 
9.         android:layout_width="wrap_content" 
10.         android:layout_height="wrap_content" 
11.         android:layout_marginRight="10dip" 
12.     />  
13.   <TextView 
14.     android:id="@+id/text" 
15.     android:layout_width="wrap_content" 
16.     android:layout_height="wrap_content" 
17.   /> 
18.     
19.    </LinearLayout> 

<?xml version="1.0" encoding="UTF-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="wrap_content" android:layout_height="wrap_content" > <ImageView android:id="@+id/image" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="10dip" /> <TextView android:id="@+id/text" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout>

效果如图：