PackageManager.getPackageSizeInfo(String packageName, IPackageStatsObserver observer)不可用，改为PackageManager.getPackageSizeInfo(String packageName, int userHandle, IPackageStatsObserver observer), 至于增加的参数userHandle的解释是：The user whose size information should be retrieved。下面是PackageManager内部的用法：
- public void getPackageSizeInfo(String packageName, IPackageStatsObserver observer) {
- getPackageSizeInfo(packageName, UserHandle.myUserId(), observer);
- }
因此，把UserHandle.myUserId()的实作部分整合进来就可用了：
- private void getPacakgeStats(String pkgName) {
- if (pkgName != null) {
- try {
- Method getPackageSizeInfo = mPm.getClass().getDeclaredMethod("getPackageSizeInfo", String.class,
- int.class, IPackageStatsObserver.class);
- /**
- * after invoking, PkgSizeObserver.onGetStatsCompleted() will be called as callback function. <br>
- * About the third parameter ‘Process.myUid() / 100000’，please check:
- * <android_source>/frameworks/base/core/java/android/content/pm/PackageManager.java:
- * getPackageSizeInfo(packageName, UserHandle.myUserId(), observer);
- */
- getPackageSizeInfo.invoke(mPm, pkgName, Process.myUid() / 100000, new PkgSizeObserver());
- } catch (Exception e) {
- Log.e(TAG, e.toString());
- }
- }
- }
