I have a mailing application. If the user sends a mail successfully, then I need to notify that the mail was sent successfully. For that, I need to know if his phone is on silent mode
(in which case there will be a 'vibrate') or regular mode (in which case there will be a 'beep'). Can anyone help me with it?
Thanks in advance
If you use the correct audio session type, iOS will handle this for you:
http://developer.apple.com/library/ios/#documentation/Audio/Conceptual/AudioSessionProgrammingGuide/Introduction/Introduction.html
CFStringRef state;
UInt32 propertySize = sizeof(CFStringRef);
AudioSessionInitialize(NULL, NULL, NULL, NULL);
AudioSessionGetProperty(kAudioSessionProperty_AudioRoute, &propertySize, &state);
if(CFStringGetLength(state) == 0)
{
//SILENT
}
else
{
//NOT SILENT
}
If the state string is empty then the phone is on silent - otherwise the phone has an audio output
EDIT:
remember to add the AudioToolbox framework and import. – Thomas Clayson
answer taken from (http://iphone-dev-tips.alterplay.com/2009/12/iphone-silent-mode-detection.html)
Related
I want to get all the notifications of the BluetoothManager private framework. I've been searching but i only have found two (BluetoothAvailabilityChangedNotification and BluetoothDeviceDiscoveredNotification).
I'm interesting in a notification that reports if iphone connected/disconnected to a device. If anyone could get me a list of all notifications i will be appreciated.
I don't have a full list, but these are the ones you were interested in:
BluetoothDeviceConnectFailedNotification
BluetoothDeviceConnectSuccessNotification
BluetoothDeviceDisconnectFailedNotification // haven't confirmed this one
BluetoothDeviceDisconnectSuccessNotification
Here are some others:
BluetoothConnectabilityChangedNotification // fires when bluetooth is turned on/off
BluetoothAvailabilityChangedNotification // seems to fire once at app start)
BluetoothPowerChangedNotification
BluetoothDeviceDiscoveredNotification
BluetoothDeviceRemovedNotification
BluetoothPairingUserNumericComparisionNotification
BluetoothPairingPINResultSuccessNotification
Add before you call [BluetoothManager sharedInstance]:
CFNotificationCenterAddObserver(CFNotificationCenterGetLocalCenter(),
NULL,
bluetoothCallback,
NULL,
NULL,
CFNotificationSuspensionBehaviorDeliverImmediately);
and somewhere in this implementation the method void bluetoothCallback:
void bluetoothCallback (CFNotificationCenterRef center,
void *observer,
CFStringRef name,
const void *object,
CFDictionaryRef userInfo)
{
if (CFStringGetCharacterAtIndex(name, 0) == 'B') { // stupid way to filter for only 'B'luetooth notifications
NSLog(#"%#", name);
}
}
Your console log shows you all bluetooth notifications now.
I want to transmit voice from one iPhone to another. I have established connection between two iPhones using TCP and I have managed to record voice on the iPhone and play it using Audio Queue Services. I have also managed to send data between the two iPhones. I do this by sending NSData packages.
My next step is to send the audio data to the other iPhone as it is being recorded. I believe I should do this in the AudioInputCallback. My AudioQueueBufferRef is called inBuffer and it seems that I want to convert the inBuffer->mAudioData to NSData and then send the NSData to the other device and then unpack it.
Does anyone know if this would be the way to do it and how I can convert my inBuffer->mAudioData to NSData? Other approaches are also welcome.
This is my callback method in which I believe I should "grab" the data and send it to the other iPhone:
void AudioInputCallback(void *inUserData, AudioQueueRef inAQ, AudioQueueBufferRef inBuffer, const AudioTimeStamp *inStartTime, UInt32 inNumberPacketDescriptions, const AudioStreamPacketDescription *inPacketDescs)
{
RecordState *recordState = (RecordState *)inUserData;
if(!recordState->recording)
return;
OSStatus status = AudioFileWritePackets(recordState->audioFile,
false,
inBuffer->mAudioDataByteSize,
inPacketDescs,
recordState->currentPacket,
&inNumberPacketDescriptions,
inBuffer->mAudioData);
if(status == 0)
{
recordState->currentPacket += inNumberPacketDescriptions;
}
AudioQueueEnqueueBuffer(recordState->queue, inBuffer, 0, NULL);
}
You might want to consider saving the audio data (your example shows the audio sample pointer and the byte count) from the audio callback to another queue or FIFO, then having a separate networking thread create NSData from the audio bytes and sending it.
In my application I'm using following coding pattern to vibrate my iPhone device
Include: AudioToolbox framework
Header File:
#import "AudioToolbox/AudioServices.h"
Code:
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
My problem is that when I run my application it gets vibrate but only for second but I want that it will vibrate continuously until I will stop it.
How could it be possible?
Thankfully, it's not possible to change the duration of the vibration. The only way to trigger the vibration is to play the kSystemSoundID_Vibrate as you have. If you really want to though, what you can do is to repeat the vibration indefinitely, resulting in a pulsing vibration effect instead of a long continuous one. To do this, you need to register a callback function that will get called when the vibration sound that you play is complete:
AudioServicesAddSystemSoundCompletion (
kSystemSoundID_Vibrate,
NULL,
NULL,
MyAudioServicesSystemSoundCompletionProc,
NULL
);
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
Then you define your callback function to replay the vibrate sound again:
#pragma mark AudioService callback function prototypes
void MyAudioServicesSystemSoundCompletionProc (
SystemSoundID ssID,
void *clientData
);
#pragma mark AudioService callback function implementation
// Callback that gets called after we finish buzzing, so we
// can buzz a second time.
void MyAudioServicesSystemSoundCompletionProc (
SystemSoundID ssID,
void *clientData
) {
if (iShouldKeepBuzzing) { // Your logic here...
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
} else {
//Unregister, so we don't get called again...
AudioServicesRemoveSystemSoundCompletion(kSystemSoundID_Vibrate);
}
}
There are numerous examples that show how to do this with a private CoreTelephony call: _CTServerConnectionSetVibratorState, but it's really not a sensible course of action since your app will get rejected for abusing the vibrate feature like that. Just don't do it.
Read the Apple Human Interaction Guidelines for iPhone. I believe this is not approved behavior in an app.
iOS 5 has implemented Custom Vibrations mode. So in some cases variable vibration is acceptable. The only thing is unknown what library deals with that (pretty sure not CoreTelephony) and if it is open for developers. So keep on searching.
The above answers are good and you can do it in a simple way also.
You can use the recursive method calls.
func vibrateTheDeviceContinuously() throws {
// Added concurrent queue for next & Vibrate device
DispatchQueue.global(qos: .utility).async {
//Vibrate the device
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate)
self.incrementalCount += 1
usleep(800000) // if you don't want pause in between, remove this line.
do {
if let isKeepBuzzing = self.iShouldKeepBuzzing , isKeepBuzzing == true {
try self.vibrateTheDeviceContinuously()
}
else {
return
}
} catch {
//Exception handle
print("exception")
}
}
}
To stop the device vibration use the following line.
self.iShouldKeepBuzzing = false
ios swift
Is there a way to get the iPhone's carrier, and/or the current signal strength, using Objective-C? I know how to determine if a data connection is present, and whether or not that connection is wi-fi vs. cellular. I also know that you can manually place the iPhone into "field test" mode by going to the phone app, and dialing #3001*12345*# and hitting Send.
You made me curious and I found out that it's actually *3001#12345#* (hashes and stars exchanged).
This probably won't pass Apple's review, but you can use CTTelephony notifications.
First, link against CTTelephony.
Now just use this:
static void callback(CFNotificationCenterRef center, void *observer, CFStringRef name, const void *object, CFDictionaryRef userInfo) {
CFShow(name)
NSString *sName = name;
if ([sName isEqualToString:#"kCTIndicatorsSignalStrengthNotification"]) {
if (userInfo) CFShow(userInfo);
}
}
And this to subscribe:
id ct = CTTelephonyCenterGetDefault();
CTTelephonyCenterAddObserver(
ct,
NULL,
callback,
NULL,
NULL,
NULL);
I m creating an app that has to display CFUserNotificationDisplayAlert even if iPhone Screen is Locked, currently i am using this code
CFOptionFlags responseFlags = 0;
CFUserNotificationDisplayAlert(20.0, 3, NULL, NULL, NULL, CFSTR("Hello"), CFSTR("Hello World"), CFSTR("OK"), NULL, NULL, &responseFlags);
This works great on Home Screen but doesnt pop up if the screen is locked. Is there anything else i have to add to it to make it appear on the Lock Screen as well?
You need to use the kCFUserNotificationAlertTopMostKey key.
extern CFStringRef kCFUserNotificationAlertTopMostKey;
CFStringRef keys[] = {
kCFUserNotificationAlertTopMostKey,
kCFUserNotificationAlertHeaderKey,
kCFUserNotificationAlertMessageKey
};
CFStringRef values[] = {
kCFBooleanTrue,
CFSTR("Title"),
CFSTR("Message")
};
CFDictionaryRef dict = CFDictionaryCreate(NULL, keys, values,
sizeof(keys)/sizeof(*keys),
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
SInt32 err = 0;
CFUserNotificationRef notif = CFUserNotificationCreate(NULL,
0, kCFUserNotificationPlainAlertLevel, &err, dict);
CFRelease(dict);
...
See http://iphonedevwiki.net/index.php/CFUserNotification for all dialog description keys for iPhone OS ≤ 3.1.
(Note that while it will show on the lock screen, the phone won't wake up by itself.)
CFUserNotification is not supported on the iPhone OS. Push Notifications are the iPhone equivalent.