barcode generator in vb.net 2008 21: iPhone Photography in Objective-C

Maker Denso QR Bar Code in Objective-C 21: iPhone Photography

CHAPTER 21: iPhone Photography
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Touch and Hold
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Choose Save Image.
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Figure 21 8. Saving an image from a web site.
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Now touch your Photo icon and you should see the picture in the Camera Roll album.
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The Photo is now in your Saved Photos Directory
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CHAPTER 21: iPhone Photography
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Maps
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Mapping on your iPhone 4 is very convenient and pretty amazing. As we explore the power of the Maps app in this chapter, you ll see how to find your location on the map and get directions to just about anywhere. You ll learn how to change views between classic Map, Satellite, and Hybrid. You ll also see how, if you need to find out the best route, you can check out the traffic and construction view using Maps. If you want to find the closest pizza restaurant, golf course, or hotel to your destination, that s easy, too. And you can use Google s Street View right from your iPhone 4 to help you get to your destination. It is easy to add an address you have mapped to your contacts. There s also a digital compass feature that is fun to play with.
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Getting Started with Maps
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The beauty of the iPhone 4 is that the programs are designed to work with one another. You ve already seen how your contacts are linked to the Maps app; just look back at 19: Working with Contacts.
The Maps app is powered by Google Maps the leader in mobile mapping technology. With Maps you can locate your position, get directions, search for things nearby, see traffic, and much more. Simply touch the Maps icon to get started.
Determining Your Location (the Blue Dot)
When you start the Maps program, you can have it begin at your current location.
CHAPTER 22: Maps
Tap the small blue arrow icon at the lower-left corner.
The Blue Dot = Your Location
Find my Current Location
Maps will ask to use your current location touch OK or Don t Allow. We suggest choosing OK, which makes it much easier to find directions from or to your current location.
If you see a circle around the dot, then your location is approximate.
Changing Your Map Views
The default view for Maps is Map view, a basic map with a generic background and streets shown with their names. Maps can also show you a Satellite view or a combination of Satellite and Map called Hybrid. Finally, another view called List view appears only when you perform a search that generates a list of turn-by-turn directions. You can switch among all the views using the following steps. To change from one map view to another: 1. 2. 3. Touch the turned-up edge of the map in the lower-right corner. The corner of the map turns up to reveal buttons for views, traffic, pins, and more. (See Figure 22 1.) Tap the view you d like to switch to: Map is a regular map with street names (Figure 22 2). Satellite is a satellite picture with no street names (Figure 22 1). Hybrid is a combination of satellite and classic, that is, a satellite view with street names (Figure 22 2).
CHAPTER 22: Maps
Satellite View
TIP: Tap to Show/Hide Traffic.
Tap this corner to change views.
Choose Map View
Figure 22 1. Satellite view and how to change to another map view.
Hybrid View Map View
Color on streets shows Traffic is turned On.
Traffic is On
Shows street names on top of Satellite view.
Tap here to switch views.
Figure 22 2. Hybrid and Map views with traffic enabled.
CHAPTER 22: Maps
As noted, List view is available only when your search produces multiple results (like pizza 32174 ) or you ve asked for directions, as shown in Figure 22 3.
List View For Turn-by-turn Directions Tap for more details on this item
List View For Search Results
Figure 22 3. List views for directions and search results
Checking Traffic
Not only does your Maps program tell you how to get somewhere, but it can also check traffic along the way. This feature is supported only in the United States for now. 1. 2. Tap the lower-right corner of the map to see the options. Touch Show Traffic.
On a highway, if there is a traffic situation, you usually see yellow lights instead of green, and sometimes, the yellow might be flashing to alert you to traffic delays. You may even see construction worker icons to indicate construction zones. Maps uses color on major streets and highways to indicate the speed that traffic is moving:
CHAPTER 22: Maps
Green = 50 MPH or more Yellow = 25 50 MPH Red = Less than 25 MPH Gray (or no color) = No traffic data currently available
Green = 50+ MPH Yellow = 25-50 MPH
Red = less than 25 MPH
Tap Here to Show Traffic
No color or Gray = No data available
Searching for Anything
Because Maps is tied to Google Maps, you can search for and find just about anything: a specific address, type of business, city, or other point of interest, as shown in Figure 22 4. 1. 2. Touch the Search bar in the top-right corner of the screen. Type in your address, point of interest, or town and state you would like to map on your iPhone 4.
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