List
      
        packages = getPackageManager().getInstalledPackages(0);public PkgSizeObserver pkgsizeobserver = new PkgSizeObserver();try {	Method method;	method = this.getPackageManager().getClass().getMethod(	"getPackageSizeInfo",									new Class[] { String.class,											IPackageStatsObserver.class });	method.invoke(this.getPackageManager(),	packageInfo.packageName, pkgsizeobserver);				} catch (NoSuchMethodException e) {					// TODO Auto-generated catch block					e.printStackTrace();				} catch (IllegalAccessException e) {					// TODO Auto-generated catch block					e.printStackTrace();				} catch (IllegalArgumentException e) {					// TODO Auto-generated catch block					e.printStackTrace();				} catch (InvocationTargetException e) {					// TODO Auto-generated catch block					e.printStackTrace();				}				synchronized (pkgsizeobserver) {					try {						pkgsizeobserver.wait();					} catch (InterruptedException e) {						e.printStackTrace();					}				}				totalApp = pkgsizeobserver.cachesize + pkgsizeobserver.codesize						+ pkgsizeobserver.datasize;}
      

PkgSizeObserver.class

//aidl文件形成的Bindler机制服务类public class PkgSizeObserver extends IPackageStatsObserver.Stub {	public long cachesize = 0;	public long datasize = 0;	public long codesize = 0;	/***	 * 回调函数。	 * 	 * @param pStatus	 *            ,返回数据封装在PackageStats对象中	 * @param succeeded	 *            代表回调成功	 */	@Override	public void onGetStatsCompleted(PackageStats pStats, boolean succeeded)			throws RemoteException {		// TODO Auto-generated method stub		if(succeeded)		{			cachesize = pStats.cacheSize; // 缓存大小			datasize = pStats.dataSize; // 数据大小			codesize = pStats.codeSize; // 应用程序大小			synchronized (this) {				this.notifyAll();			}		}	}}