GreenThumb FAQ: Hints, Secrets, and Strategy

GreenThumb is a free iPhone game that is easy to learn but difficult to master. The following hints and secrets will propel you to the top of the leaderboard in no time. Feel free to post your tips as well.

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Block YouTube and/or App Purchases on iPhone or iPod Touch

Kids love using the iPhone and iPod Touch. However, parents may want to limit what their children can access through these devices. This simple tutorial shows how to use parental restrictions to block the viewing of YouTube videos or the purchasing of applications.

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iPhone / iPod Touch: How to Use Custom WebClip Icons

The iPhone and iPod Touch allow you to bookmark websites and add them to your home screen. If the site is configured to do so, you will see nice WebClip icon on your iPhone (iPod Touch), but if there is no WebClip icon specified, you will have a shrunk down screenshot of the page for the icon. Here’s how to get custom WebClip Icons for sites without one (or for sites with ones you don’t like).

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iTunes / iPhone – Put iTunes into Activation Only Mode (Enterprise deployment)

This recipe is for those of us that work in an enterprise/corporate setup and support iPhones.  If you support iPhones via Exchange, you most likely will at some point have to activate an iPhone or two.

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Using iPhone 3G S Voice Control Commands

Apple’s latest hardware upgrade for the iPhone line, the iPhone 3G S, adds voice control capabilities. Without looking at the device, using voice control you can easily dial the phone using numbers or a contact’s name, and control the iPod with various commands. Here are the details:

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iPhone 3G S: Show Battery Percentage

The new 3G S has several nice, little features. One of my favorites is the ability to show a percentage of the battery life in the upper right hand corner instead of just the battery graphic. Here is how to do it.

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iPhone SDK: Solve [UINavigationController pushViewController:] unrecognized selector sent to instance

I adore coding to the iPhone SDK. It’s the most joyful coding I’ve done in the quarter century (gasp!) I’ve spent coding various computer systems. It’s a combination of Objective-C (elegant) and Cocoa (beautiful). There is one exception I keep getting and just infrequently enough that I forget why I get it. I thought someone might benefit from this because it’s an easy trap to fall into.

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iPhone: Mimic Cocoa UIKit in Webkit

Using webkit in iPhone / iPod touch application development is a common practice. However, jumping from cocoa to webkit and back can be confusing to the user. Here are a couple of simple hints for theming webkit to look like Cocoa’s UIKit framework.

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