Posts Tagged ‘iPhone’

Howto: Grocery list shopping with ToodleDo on iPhone

It’s been asked numerous times in the support forums of Toodledo, people want a way to have a grocery list. In essence, the requirements are simple. I need to have a list with 3-state items in it:

  • Not needed.
  • Needed for next grocery shopping.
  • Item is in shopping cart.

This becomes extremely useful because before going to the market, I can review the list of everything I’m ever purchased (the “Not needed” items), and check what I’d like to add to my list today. Then as I make the purchases, I cross those out until I’m done shopping.

The customer support of ToodleDo said that they did not wish to program this functionality in ToodleDo because they feel it would make the application too complex. While I normally agree with such decisions to keep software simple and efficient, this is just dumb. 3-state items doesn’t bring complexity in the program. SplashShopping has been doing it for years and the application is simple.

I’ve come up with a way to do something very close to that with ToodleDo on my iPhone. Here’s how.

  1. Go to Folders, and tap Add Folder, name it “Groceries”.
  2. Go in the Groceries folder, tap the Sort button.
  3. “First sort”, select “Star”
  4. “Then sort”, select “Alphabetical”

Add a few items (Milk, eggs, etc) to make up an initial list of items to purchase.

Whenever you want to make a list for shopping, go to that folder, and add a Star to everything you need to buy. Just bo back to Folders, and then back into your Groceries folder to re-sort the items. Every starred item with be on the top. This is your shopping list.

As you make your purchases, check the box.

When you’re done shopping, it takes only a few seconds to remove all the stars. The resulting list of checked items with no stars becomes your list of previous items for next shopping trips. Just uncheck and star the ones you want for the next trip, and so on.

I realize this is far from perfect, but it does the job for me just fine, so I thought I’d share it.

Tethering fix for iPhone

A lot of things can go wrong with tethering, but after spending some time fixing mine, I thought I would document it.

My problem was that after setting it up properly on my Mac via either bluetooth or USB, the tethering would get activated from the iPhone’s side, but on the computer I would have an error message when using bluetooth, and no error on USB. On either, I would get no data from the internet.

After investigating a bit, I found out that my Mac would get a self-assigned IP, instead of a regular IP address given by the phone’s DHCP server.

The problem was PdaNet that was left activated! I installed the trial version of PdaNet to play a bit with WiFi tethering, and forgot to turn it off. As it turns out, PdaNet disables the DHCP server.

How to (probably) avoid dust in the iPhone screen

After about 10 months of use of my iPhone 3G, the screen became littered with dust specks. I could see various sizes of dust particles, a bit spread out but mostly around the center of the screen. They appear to be stuck in the thin layer of air between the LCD glass and the casing protective glass with touchscreen.

As I’ve had my unit replaced by Apple yesterday (broken vibration switch), the Genius shown me where dust particles can enter the frame: through the SIM slot.

As he pulled the SIM slot out to recover my SIM chip, a considerable amount of white powder/dust came out with it.

So here’s my theory about how to prevent that. I’ll do it myself, and report back in a few months if it works or not.

  1. Power down the phone (press and hold sleep, add pressing home and hold both until the Turn of power slider appears, then release buttons and slide that).
  2. Use an unfolded paperclip to push a pin into the small hole at the top, this gets the SIM card tray out.
  3. Remove the tray and SIM card. Clean those.
  4. Using a vacuum cleaner, bring it neat the opening of the SIM card tray and suck out the dust and particles in the phone. Only suck lightly! Don’t form a seal with the vacuum cleaner. Doing that will result in damage of the phone because of the strong vacuum forces that will move parts inside the phone (such as speaker membrane for example). Only bring the vacuum clone enough so that the particles are sucked in, nothing more.
  5. Repeat monthly.

iPhone can’t delete photos

For some reason, in photo roll I could delete pictures, but when I quit and return in the photo roll, the deleted pictures were back.

Turns out it’s a permission issue, open a terminal and go:

chown -R mobile /var/mobile/Media/DCIM