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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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;

}

}

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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;  

    }  
      
    @Override  

    public int getCount() { 

        // TODO Auto-generated method stub 

        return list.size();  

    }  
    @Override  
    public Object getItem(int position) { 

        // TODO Auto-generated method stub 

        return list.get(position); 

    }  
    @Override  

    public long getItemId(int position) { 

        // TODO Auto-generated method stub 

        return position;  
    }  
    @Override  
    public 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;  
}  

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;
	}
	
	@Override
	public int getCount() {
		// TODO Auto-generated method stub
		return list.size();
	}
	@Override
	public Object getItem(int position) {
		// TODO Auto-generated method stub
		return list.get(position);
	}
	@Override
	public long getItemId(int position) {
		// TODO Auto-generated method stub
		return position;
	}
	@Override
	public 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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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
* @return ApplicationInfo

*/

public ApplicationInfo getInfo(String name){

if(name ==
null){
return null;

}
for(ApplicationInfo appinfo : appList){

if(name.equals(appinfo.processName)){

return appinfo;

}
}
return null;

}

}

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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; 

    }  
      
}  

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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<?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>

<?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：