I want to use iPhone SDK to implement a bluetooth connection between two iPhones, but I don't find any bluetooth API in iPhone SDK 3.0. Can anybody help me? Thanks.
BTW: Is it possible to connect more than two iPhones at the same time by using bluetooth?
Haitao
4 Answers
You can connect two iPhones and transfer data via Bluetooth using either the high-level GameKit framework or the lower-level (but still easy to work with) Bonjour discovery mechanisms. Bonjour also works transparently between Bluetooth and WiFi on the iPhone under 3.0, so it's a good choice if you would like to support iPhone-to-iPhone data transfers on those two types of networks.
For more information, you can also look at the responses to these questions:
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Brad Larson♦Brad Larson
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Check out the BeamIt open source project. It will connect via bluetooth and WIFI (although it claims it does not do WIFI) and I have verified that it works well in my projects. It will allow peer to peer contact easily.
As for multiple connections, it is possible, but you will have to edit the BeamIt source code to make it possible. I suggest reading the GameKit programming guide
coneybeareconeybeare
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We cant connect to iPhones normally by bluetooth.it is so difficult.so,please try any other file transfers like zapya,xender.it seems good
Anand S Kumar
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parvezparvez
If I remember correctly, Bluetooth defines certain roles that devices can take. Most cell phones only support a certain number of roles. For instance, I can have a Bluetooth stereo headset that connects to my phone to receive audio, but just because my cell phone has Bluetooth does mean that it supports BEING a speaker for a different device - it doesn't advertise its capabilities of having a speaker for use by other Bluetooth devices.
I assume you want to transfer files between two iPhones? Transferring files via Bluetooth does seem like functionality that I would put in the iPhone, but I'm not Apple so I don't know for sure. In fact, yes, it seems that file transfer is not supported except in jailbroken phones:
You'll probably get similar answers for Bluetooth Dial-Up Networking. Sim city 4 building download. I'd imagine they kept the Bluetooth commands out of the SDK for various reasons and you'll have to jailbreak your phone to get the functionality back.
Stephen FriederichsStephen Friederichs
protected by Andrew MedicoMar 31 '16 at 12:55
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You may not be able to connect accessories to the iPhone using a USB port, but tons of useful devices work with the iPhone thanks to Bluetooth. While most people think of Bluetooth as the way that wireless headsets or speakers get connected to phones, it's much more than that. Bluetooth is a general-purpose technology used with headsets, keyboards, car stereos, and more.
The process of connecting a Bluetooth device to an iPhone is called pairing. Regardless of what kind of device you're pairing to your iPhone, the steps are basically the same.
About Pairing
Place your iPhone and Bluetooth device near each other. Bluetooth's range is a few dozen feet, so devices that are too far apart can't connect. The technology's theoretical limit is 33 feet, but the closer the two devices are, the better.
As a security precaution, both devices must be in a 'discovery' mode, although the name for that mode varies by manufacturer and the procedure for activating it isn't uniform. Consult your device's user manual for specific instructions. By requiring both devices to operate in this mode to effect a pairing, you can be confident that strangers on the subway can't secretly pair with your iPhone or AirPods.
Activate Pairing Mode on the iPhone
Tap the Settings > Bluetooth and ensure that the toggle switch is green. If it is, you'll see a list of all the devices presently paired to your phone, whether they're active or not. Any devices placed into pairing mode will appear at the bottom of the list. Just tap it to pair it.
Some devices, like Bluetooth keyboards, may present a passcode you must enter on the device to ensure that you've paired the right device to the right iPhone.
These steps also apply to the iPod touch and iPad.
Disconnect Bluetooth Devices From an iPhone
It's a good idea to disconnect a Bluetooth device from your iPhone when you're done using it so you don't run down the battery on either device. Either turn off the device or turn off Bluetooth on your iPhone. In iOS 7 or higher, use Control Center as a shortcut to turn Bluetooth on and off.
While Bluetooth doesn't drain as much battery as Wi-Fi, keeping it turned off when not in use is one of the ways that you can extend the battery life of your iPhone.
If you need to keep Bluetooth on but just disconnect from a specific device, go to the Bluetooth menu in Settings. Find the device you want to disconnect and tap the i icon next to it. On the next screen, tap Disconnect.
Permanently Remove a Bluetooth Device From iPhone
If you're not going to need to connect to a given Bluetooth device ever again, remove it from the Bluetooth menu altogether. Tap Settings > Bluetooth. Tap the i icon next to the device you want to remove, then tap Forget This Device. In the pop-up menu, tap Forget Device.
If the device you're trying to permanently disconnect from is an Apple Watch, the process is slightly different. Learn all about it in How to Unpair Apple Watch and iPhone.
Full iPhone Bluetooth Support Specifications
The types of Bluetooth accessories that work with the iPhone and iPod touch depends on what Bluetooth profiles are supported by iOS and the device. Profiles are specifications that both devices must both support to communicate with each other. The following Bluetooth profiles are supported by iOS:
After updating to iOS 11.4.1 or iOS 12, the Bluetooth not working on iPhone and iPad? Read on this post to get some quick tips to fix the common Bluetooth issues in iOS 10/11/12.
By iMobie | Posted on: Sep. 12, 2018, Last Updated: Apr. 08, 2019
Home > iOS Problems >Bluetooth Not Working on iPhone iPad
This post applies to almost all iPhone generations, including iPhone 7, iPhone 8, iPhone 6s/6/5s and the new iPhone X. It applies iOS from the old iOS 9 to iOS 12.
The iOS 12 is coming on the way for all iPhone iPad users, it’s powerful and said to be the fastest iOS ever released by Apple, and now most of the people are running iOS 11, which fixes some bugs that happened before. However there is no update that is perfect, and no one can promise you everything could be good even after your device is garbed the newest iOS 12 update.
Don’t Miss: The Pros and Cons of iOS 12 and Should I Update to iOS 12
We previously showed you the possible message problems, iPhone no service you may meet after iOS update, and here we will talk about the common iPhone iPad Bluetooth issues you may meet, and tell some tips to fix Bluetooth not working on iPhone iPad.
Part 1. Common iPhone Bluetooth Issues You May Encounter after Update to iOS 12/11.4.1
In beginning, Bluetooth may just work well on your iPhone iPad. But after upgrading to iOS 11.4.1 or the newest iOS 12, some unexpected problems may occur. Issues like broken Bluetooth connections, failed Bluetooth pairing, and Bluetooth audio in the car are frequently reported. We summarize the Bluetooth issues you may encounter.
Part 2. How to Fix “Bluetooth Not Working on iPhone iPad”
We’ve listed the most common Bluetooth issues on your iPhone or iPad that you may meet after iOS 10/11/12 upgrade. In this part, we will walk you through the potential solutions to make Bluetooth workable on your iPhone or iPad.
Can’t Miss: How to Fix: iPhone iPad Wi-Fi Not Working >
The above are some Bluetooth issues on iPhone iPad running iOS 10/11/12 and the potential solutions to fix them. No matter what iOS devices you are using, whether the iPhone 6/6s/7 or the new iPhone 8/iPhone X, you can have a try.
If you are suffering from some new Bluetooth issue or have some useful ideas, please share with us in the Comment Section. For more new iOS update problems, please refer to The Most Common iOS Update Problems.
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You should know by now that an iPhone of the right vintage can be turned into a mobile hotspot—a portable router that pumps out a Wi-Fi signal on one side and talks to a mobile 3G broadband network on the other. We’ve covered the Personal Hotspot feature for both the Verizon iPhone 4 and for the the GSM-based iPhone 4 used by AT&T in the U.S. and other carriers around the globe.
The Personal Hotspot feature also lets iPhones starting with iOS 4.2.6 (Verizon) or 4.3 (GSM model) share the cell data connection via Bluetooth and USB as well. All iPhone 4 flavors can allow up to three Bluetooth devices to connect as part of a total of five connections of any kind (among USB, Bluetooth, and Wi-Fi) at any given time. (The iPhone 3G or 3GS with 4.0 or later installed can accept one connection via Bluetooth.)
What you may not know is that the iOS 4.3 update adds Bluetooth tethering to every iPhone, iPod touch, and iPad capable of running that latest release. This lets any of those devices obtain an Internet connection from an iPhone with its sharing feature enabled. (Yes, you can even connect one iPhone as a client to another acting as a server in this manner.) It should also work with any computer, router, or mobile device that offers this kind of connection sharing over Bluetooth, such as Mac OS X’s Internet Sharing feature. Many other mobile devices can also tether over Bluetooth, as well as Mac OS X and Windows systems.
Why connect with Bluetooth
Bluetooth tethering has a set of advantages that might lead you to select it instead of Wi-Fi for routing your iOS device through an iPhone 4 Personal Hotspot. It also has a few drawbacks that might dissuade you.
For iPhone 3G and 3GS users, this form of tethering also allows other iOS devices to share a connection, which was previously impossible. (If either phone has iOS 4.0 to 4.2 installed, the sharing option appears as Internet Tethering. On an iPhone 3GS with iOS 4.3 installed, it’s labeled Personal Hotspot, though Wi-Fi isn’t available as an option.)
The key advantage of Bluetooth tethering is simplicity, especially with a streamlined pairing process for securely connecting two devices over Bluetooth that Apple added to the iOS with the 4.3 update. You can also likely save battery power on both the iPhone acting as a hotspot and the device or devices you to tether to it: Bluetooth should consume less power than Wi-Fi, even though modern Wi-Fi has a lot of built-in power-conserving features.
What you’ll like best, though, is that using Bluetooth tethering sidesteps a major inconvenience with the Personal Hotspot feature. When you turn on the feature on your iPhone, Wi-Fi sharing is only enabled for 90 seconds unless a device connects via Wi-Fi within that period. After 90 seconds with no connections, your phone’s Wi-Fi radio turns off sharing to reduce battery usage. The same is true if you have Wi-Fi devices connected, and then disconnect or power down all of them: a 90-second countdown ensues.
This adds a step to using Personal Hotspot when you’re using it during a commute, for instance. Instead of just pulling out your iPad, and waiting for it to connect, you have to first extract your iPhone, and navigate to the Personal Hotspot screen. Wi-Fi availability should automatically start up just by visiting that screen, although I found in testing that I sometimes had to tap the Personal Hotspot switch from On to Off and back to On again. Then you put your iPhone away, and your iPad should connect to the iPhone’s mobile hotspot with no prompting.
Bluetooth sharing, in contrast, is always available with Personal Hotspot. In the scenario above, you’d leave your iPhone stowed and simply wake your iPad. The tablet should connect automatically. If it does not, you navigate to Settings, go to General -> Bluetooth, and tap the iPhone hotspot in the list of Bluetooth devices. The iPad then connects.
Bluetooth offers a level of security that’s equivalent to the WPA2 flavor of Wi-Fi encryption required by Apple for the Personal Hotspot feature. However, with Bluetooth, all the security is handled for you automatically. The pairing process confirms that no other party intercepted a key exchange; after that, strong encryption is used automatically with no data entry.
What’s the biggest downside to Bluetooth tethering? Throughput. Bluetooth 2.1+EDR, the flavor built into all iOS devices, has a raw rate of 3 Mbps and a net throughput that’s just a bit over 2 Mbps. That’s fine on Verizon’s 3G network, where average speeds never top 2 Mbps. On AT&T’s network—and many other GSM networks worldwide—the HSPA 7.2 standards allow realistic average speeds of 1 to 4 Mbps. Over Bluetooth, you’ll cap your highest potential, as Wi-Fi can carry more than 30 Mbps between two devices.
The set-up
Now, how would one set this up, I hear you ask? For setting up the Personal Hotspot, please consult our earlier coverage of that feature, which we linked to above. In brief, make sure you’ve signed up for the feature with your carrier. Both AT&T and Verizon Wireless charge $20 per month to use Personal Hotspot, and AT&T requires a certain level of metered service. (Carriers outside the U.S. may include the feature at no charge or require certain service levels or surcharges.) Then launch Settings on your iPhone, tap General -> Network -> Personal Hotspot, and tap the switch to On. (If you’ve already used Personal Hotspot, the menu item appears in the main level of the Settings app at the top.)
On any other iOS device with version 4.3 or later installed, follow these steps to pair and then tether the device:
On your paired device, a special chain-link icon appears where a Wi-Fi signal strength meter typically shows up in the status bar at upper left. On both devices, the word Connected appears next to the name in the Bluetooth Devices list.
Your iOS device will remain paired with the iPhone’s mobile hotspot as long as it remains active. If you put it to sleep and wake it, it should reconnect: you’ll see the double-link icon at upper left if it does. Should your device fail to reconnect automatically, launch Settings and tap General -> Bluetooth. If it says Not Connected next to the iPhone’s name in the Devices list, tap the name. This causes the device to reconnect. If that fails, try toggling the Personal Hotspot option on your phone from off to on.
You can make your iOS device stop pairing by tapping the white-in-blue detail arrow next to the iPhone’s name in the Bluetooth screen’s Devices list. Tap Forget This Device, and it has no memory of how to connect. (You can easily repair at will using the instructions above.)
Bluetooth tethering isn’t a replacement for Wi-Fi sharing, but it provides more flexibility in your arsenal, especially if you commute and don’t want to have to fiddle with multiple devices to gain a connection.
(A big tip of the hat to Meek Geek, who alerted me via Twitter to this new feature before I’d even heard of it. Thanks!)
Iphone To Iphone Bluetooth Live Conversation
[Glenn Fleishman is a senior contributor to Macworld, where he writes regularly about networking. His latest book is Take Control of iPhone and iPod touch Networking and Security, just updated to include Personal Hotspot instructions.]
It’s easy to transfer data from iPhone to Android or vice-versa if you have an Internet connection. But what if you cannot connect to a Wi-Fi network or cellular data is not available? Is it possible to transfer data between iPhone/iPad and Android wirelessly via Bluetooth in this case?
Question:
Can I Transfer photos from my iPhone/iPad to my friend’s Android phone via Bluetooth?
[Make sure you read full the answer. It can possibly be the solution you’re looking for]
Answer:
You cannot connect an Android phone to an iPhone over Bluetooth, therefore, you cannot transfer data between the two devices this way. On iOS, Bluetooth is only used as a conduit to establish the connection between AirDrop devices, or for connecting peripherals such as keyboards, mice, and speaker. It’s not used for mass transferring data.
However, if you’re interested in sharing data between iPhone and Android wirelessly without using the Internet, you still can do it.
Zapya is a cross-platform application that lets you share files across devices like Android, iPhone, iPad, PC in an instant. It works by utilizing the Wi-Fi connection (not the Internet connection) to transfer data. Here’s how it works.
Step 1: Install Zapya on both of your iPhone and Android phone.
Step 2: Turn on Cellular Data and Personal Hotspot on the iPhone. Then on the Android phone, join the Wi-Fi network you just created using the iPhone.
Zapya only leverages your Wi-Fi tethering to transfer data and won’t cost any of your mobile data.
Iphone To Iphone Tethering Bluetooth
Step 3: Connect two devices in the Zapya app. Once both devices are connected, you can start sending data between the two devices. Not only can you transfer photos and videos, but you can also transfer any file type as Zapya will handle the files for you.
Also read: How to Transfer Photos from iPhone to Computer
As I mentioned, Zapya won’t use your mobile data at all. So it’s a great solution if you’re looking for a method to transfer photos/videos from iPhone to Android wirelessly. Using Zapya even offers much better transmission speed than Bluetooth as you can transfer up to 10 MB per second.
Apart from Zapya, you can also try other apps like Xender, ShareIt,… which provide the similar feature.
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