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13

Go to Settings > Messages. There's an option "Show Preview" there. If you toggle this to off, it will stop showing SMS previews on the lock screen. This will also disable the alert popup when a new SMS arrives and the phone is not locked.


12

Before iOS 4 - jailbreak software changes could do this. For iOS 4 and later, the lock function easily sets a portrait mode for all apps that run in both portrait and landscape. You can lock the screen rotation on the iPhone 3GS and 4, running iOS 4, to portrait only by double pressing the Home button (bringing up the task switcher), swiping right to show ...


10

You may be worrying more than you need to be. Apps can only use multitasking for certain functions: Playing audio Tracking your location VOIP Local notifications and alerts Complete a lengthy operation In all cases, rather than the app remaining running, the system keeps it suspended and awakens it at appropriate times, such as when it needs to fetch ...


10

This is not possible at all right now. Like you said, you can back out and go in again to dismiss keyboard. Other option is to tap the 'edit' button on top right. That will dismiss keyboard but it will go in edit mode. When you cancel out of edit mode keyboard will come back. Apple should do something to easily bring up and dismiss keyboard... Update: With ...


9

Not presently. iOS multitasking however is quite different than say the multitasking in Android or Mac OS X. The app unless it specifically is using one of the 7 methods to run in the background is "frozen" and won't consume any resources until it's brought back to the forefront. Essentially the fast app switching feature as part of iOS 4.0 is a large part ...


8

Seems like no way to do this at the moment. Workaround: The only solution seems to be to rename a spare access point to the SSID of the network you want to forget, connect to it with the iPhone, and choose the option to forget the network. This kludge seems like a lot of work and something that an average user probably doesn’t know how or want to do ...


8

Yes, it does slow down. It's more and more noticeable as time goes by. Apple has acknowledged this issue and they are looking into it. Here are tips to make it run smoother again. (This is just a solution that has worked for many people. This is not Apple's official solution. They are working on a solution.) 1 - Disable spotlight search. Settings -> ...


7

Orientation lock on iPhone with iOS 4 only does portrait lock at the moment. Hopefully they will have landscape lock on the next update.


7

The rumours are that it is much faster: http://thenextweb.com/apple/2010/07/27/does-ios4-1-fix-slow-iphone3g-units-yes/


6

If you have a jail broken iPhone you can ssh into it and install tcpdump. Tcpdump is a command line program that wireshark is indirectly built off of.


5

From a MacRumors.com forum post: My problem: Typing on the Google Maps app was very slow, independent of network connection. My solution: Apparently there are issues with the GPS multitasking. I went to Settings > General > Location Services. Notice you can toggle the GPS for each app. Apps using the GPS have a purple arrow next to the ON/OFF ...


5

The Simulator does not use a bundled .ipa file; it uses the constituent application. Furthermore, the Simulator runs an x86 version of the application with tweaked x86 versions of the iOS frameworks. In other words, there is no good way to get an .ipa package to run in the Simulator. The original developer could build for simulator then provide you with ...


5

With iOS 4 and above, you can pair a Bluetooth keyboard to the phone. That's the hardware keyboard for which you'd be specifying the layout.


5

Okay, let me walk you through it step-by-step. The first thing we'll need to do is sync. Then we will backup, and then put the new OS on. Syncing Take your iPhone and plug it into your computer (using the charging cable that came with it)(it should have a USB, and iPhone connector) If iTunes does not automatically pop-up on your computer screen within 1 ...


5

Personal Hotspot (using bluetooth or USB, but not WiFi).


5

Use HandBrake to easily convert the AVI files to an iPhone compatible format then sync those converted files with your iPhone Or, email/post them to Posterous, and they'll be auto-converted into a format watchable on your iPhone


5

iOS 4 can't be updated over the air. OTA updating was introduced in iOS 5. To update the iPad to iOS 5, you need to use iTunes. Connect the device to iTunes and it should prompt that a new version of iOS is available and allow the device to be updated. Then, in the future, the device can be updated using Software Update from settings.


4

Here's an article (and video) showing off the issues with iOS4 on a 3G: http://www.macrumors.com/2010/07/28/apple-looking-into-reports-of-problems-with-ios-4-on-iphone-3g/ Seems like not only is it extremely sluggish, but battery life is shortened as well. Apple has confirmed that there is an issue and are looking into it. I would hold off for now and wait ...


4

In my personal experience, iOS 4 was only marginally slower than iPhone OS 3, so it really comes down to features. First, iOS 4 does not allow you to put home screen wallpapers on an iPhone 3G. I don't have experience with multitasking on a jailbroken device, but again iOS does not provide this functionality on the iPhone 3G. However, given the memory and ...


4

You can use the Contacts application provided in the iPhone 4, and create/edit contacts in there.


4

My understanding is that there currently is not one, although rumours abound that one is coming up soon. The best place for "official" information is the iPhone Dev-Team. More direct/recent updates can be found by following various team members on Twitter. MuscleNerd is a good example. If other legitimate groups released anything solid, you will hear about ...


4

While iOS doesn't support generic background tasks (i.e. doing whatever you want in the background), it does support taking some action when a user enters certain geographical bounds, so it seems like this could technically be possible when moving from work to home or elsewhere. My guess is that it is because iOS is very restrictive about what an app can ...


4

You can set that up, but not on the device. There's no interface to more complex recursion rules in the iOS calendar app. If you're synching with iCal on a mac, you add the event to iCal and go into the "custom" recurrence settings, and it's easy to have it repeat every two days. Sync your device and bob's your uncle.


4

That is pretty bizarre. The iPhone 4 is supposed to have 2x256MB memory modules for a total of 512MB, but it sounds like, for some reason, your phone isn't seeing one of them. Your numbers bear this out too - the iPhone hardware sets aside 9MB of the total memory, resulting in the OS seeing 503MB or, in your case, 247MB. Definitely take it in and try to ...


4

To do it in the Emulator, you can just use Quicktime, since the latest version supports Screen Recording. Keep in mind though that it captures the entire screen and not just a particular window.


4

From the Photo app you can select up to 5 images and hit Share -> E-Mail. Maybe it's possible to mail more then 5 images when you select 5+ and the Copy them and Paste them in your E-Mail. See this guide for reference: Send multiple photos at once on the iPad and iPhone



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