/**
   * @param context
   * @param pkName
   *            包名
   * @param activityName
   *            activity全路径
   */
  public static void startOtherApp(Context context, String pkName,
      String activityName) {
    Intent mIntent = new Intent();
    mIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    ComponentName comp = new ComponentName(pkName, activityName);
    mIntent.setComponent(comp);
    mIntent.setAction("android.intent.action.VIEW");
    context.startActivity(mIntent);
  }