PackageInfoWithSize.java

package cn.edu.buaa.act.sdp.malwaredetector.entity;

import android.annotation.TargetApi;
import android.content.Context;
import android.content.pm.IPackageStatsObserver;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageStats;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.os.RemoteException;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import cn.edu.buaa.act.sdp.malwaredetector.util.DateUtil;

/**
 * Created by yaodh on 2014/11/11.
 */
public class PackageInfoWithSize {
    String packageName;
    String installDate;
    String appName;
    Drawable icon;
    String version;
    long totalSize;

    public PackageInfoWithSize(Context context, PackageInfo packageInfo) {
        PackageManager packageManager = context.getPackageManager();
        appName = packageInfo.applicationInfo.loadLabel(packageManager).toString();
        packageName = packageInfo.packageName;
        version = packageInfo.versionName;
        icon = packageInfo.applicationInfo.loadIcon(packageManager);
        installDate = DateUtil.getDateFromLong(packageInfo.firstInstallTime, "yyyy-MM-dd");
        totalSize = getPackageSize(context, packageInfo.packageName);
    }

    public String getPackageName() {
        return packageName;
    }

    public String getInstallDate() {
        return installDate;
    }

    public String getAppName() {
        return appName;
    }

    public Drawable getIcon() {
        return icon;
    }

    public String getVersion() {
        return version;
    }

    public long getTotalSize() {
        return totalSize;
    }

    public long getPackageSize(Context context, String packageName) {
        try {
            Method method = PackageManager.class.getMethod("getPackageSizeInfo",
                    new Class[]{String.class, IPackageStatsObserver.class});
            method.invoke(context.getPackageManager(), new Object[]{
                    packageName,
                    new IPackageStatsObserver.Stub() {
                        @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
                        @Override
                        public void onGetStatsCompleted(PackageStats pStats, boolean succeeded) throws RemoteException {
                            totalSize = pStats.cacheSize + pStats.codeSize + pStats.dataSize
                                    + pStats.externalCacheSize + pStats.externalDataSize + pStats.externalCodeSize
                                    + pStats.externalMediaSize + pStats.externalObbSize;
                        }
                    }
            });
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        }
        return totalSize;
    }
}