获得Android APK图标的代码

public static Drawable getApkIcon(String path, Context mContext) {          Drawable icon = null;          try {              String apkPath = path;              PackageParser packageParser = new PackageParser(apkPath);              DisplayMetrics metrics = new DisplayMetrics();              metrics.setToDefaults();              PackageParser.Package mPkgInfo = packageParser.parsePackage(                      new File(apkPath), apkPath, metrics, 0);              ApplicationInfo info = mPkgInfo.applicationInfo;              Resources pRes = mContext.getResources();              AssetManager assmgr = new AssetManager();              assmgr.addAssetPath(apkPath);              Resources res = new Resources(assmgr, pRes.getDisplayMetrics(),                      pRes.getConfiguration());              if (info.icon != 0) {                  icon = res.getDrawable(info.icon);                  // bitmap = MyUtil.drawableToBitmap(icon);              }              packageParser = null;              metrics = null;              mPkgInfo = null;              info = null;              pRes = null;              assmgr = null;              res = null;          } catch (Exception e) {              icon = null;          }          return icon;      }