Reading Time: 2 minutes Avoid the Payload validation error To shorten the review waiting time. I noticed this recently in my own apps update. The one without warning has much shorter review waiting time. The rationale is App thinks the app may use private API in this scenario (see this explanation on stackoverflow). From personal experience the one with

Reading Time: 2 minutes Should I put iAd to my iOS apps on iTunes App store? Should I put the google adsense back to my blog? The reason I am asking this question is: while personally I really don’t like the ads on Facebook, LinkedIn, or the iAds on some apps like Echofon, I understand this is a meaningful

Reading Time: 2 minutes Serenity became 4 years old a few months ago, and we are actually expecting our second child this July. Being the 1st generation Chinese immigrants in mid-west, we have some unique challenges such as being the minority in the community. This is not the case in the pre-school/toddler community we sent Serenity to (Hope Montessori

Reading Time: 2 minutes This is a continuation of my earlier post of Tree, recursive function and my dumb mistake. As I said in my last post, my solution was to create hash maps (singleton) to store those for the session. The main motivation was to help out the performance. But I found out it backfired on me, a

Reading Time: < 1 minute The summer is coming. Since we will be free on Saturday mornings, I plan to take my daughter to all the farmers’ market in the area. We have been to Tower Grove before; Creve Coeur just opened the farmers market at the same time (Saturday morning) at the Parkway north middle school parking lot: 181

Reading Time: < 1 minute This is the end of school year, it is also the busiest time for parents and kids. I just realized it this year. As this past week we had two activities for Serenity: besides the Spring musical, we had Spring Performance at Team Central Gymnastics. Yoyo has done this for a year now, I knew

Reading Time: < 1 minute Serenity’s school usually have this Spring Musical, in which each class will take turns and sing two songs. Each year they have a theme. Last year it was about Season. In the May of St. Louis, the weather is almost like summer. Some classes picked Summer, Spring, or Fall, Serenity’s class picked two Winter songs,

Reading Time: 3 minutes Or am I? 🙂 I think I’m a pragmatic programmer. Note this is also a book title I read, by pragmatic (note not agile), I think it’s about balance between software quality, effort and delivery date. It’s also about releasing software with known risks (including bugs) 🙁 I thought about this as I started practicing

Reading Time: 3 minutes (Update 08-30-2014) We went to St. Louis Outlet Mall (the mills) again today. The playground is busier today as this is labor day long weekend. But still fun. We also explored the mall a bit more this time. (Update 07-20-2014) We went to St. Louis Mills today, as I felt it’s might be a better

Reading Time: 2 minutes I have listened to Paul Kemp’s the App Guy Podcast (TAGP) recently, got to know this from @raywenderlich via twitter. Paul’s podcast is not purely technical, it’s more about entrepreneurship, and start own business. It’s an interview format. Paul usually asks indie developers (iOS, web, etc.) questions on how they get started, any pain points