I'm searching for a way to present available WiFis in an iPhone App.
So far my research resulted in the following:
Apps that implement(ed) such a functionality were removed from the AppStore (means you can't deploy the App via AppStore which is fine for me)
Apple hides the functionality that is necessary for a scan in a private framework and you can't find any explanations/comments/examples on "how to use"
http://code.google.com/p/iphone-wireless seems to be most promising. anyway, i can't figure out how to include the delivered sources in my code so that it runs on a device
Even the adaptions that are mentioned htt ://code.google.com/p/iphone-wireless/issues/detail?id=26 didn't get me the desired results. The most progress was ending up with a
dlopen error: dlopen(/System/Library/SystemConfiguration/Aeropuerto.bundle/Aeropuerto, 1): image not found
failed: __Apple80211Associate
message after launching the app on a device (iPhone 3GS; iOS 3.1.3).
Used source code that procudes the error is here:
NSMutableDictionary *networks;
bool scanning;
void *libHandle;
void *airportHandle;
int (*open)(void *);
int (*bind)(void *, NSString *);
int (*close)(void *);
int (*scan)(void *, NSArray **, void *);
networks = [[NSMutableDictionary alloc] init];
// libHandle = dlopen("/System/Library/Frameworks/Preferences.framework/Preferences", RTLD_LAZY);
// libHandle = dlopen("/System/Library/PrivateFrameworks/Apple80211.framework/Preferences", RTLD_LAZY);
libHandle = dlopen("/System/Library/SystemConfiguration/WiFiManager.bundle/WiFiManager", RTLD_LAZY);
open = dlsym(libHandle, "Apple80211Open");
bind = dlsym(libHandle, "Apple80211BindToInterface");
close = dlsym(libHandle, "Apple80211Close");
scan = dlsym(libHandle, "Apple80211Scan");
open(&airportHandle);
bind(airportHandle, #"en0");
NSLog(#"Scanning...");
scanning = true;
NSArray *scan_networks;
NSDictionary *parameters = [[NSDictionary alloc] init];
scan(airportHandle, &scan_networks, parameters);
bool changed;
for (int i = 0; i < [scan_networks count]; i++) {
if([networks objectForKey:[[scan_networks objectAtIndex: i] objectForKey:#"BSSID"]] != nil
&& ![[networks objectForKey:[[scan_networks objectAtIndex: i] objectForKey:#"BSSID"]] isEqualToDictionary:[scan_networks objectAtIndex: i]])
changed = true;
[networks setObject:[scan_networks objectAtIndex: i] forKey:[[scan_networks objectAtIndex: i] objectForKey:#"BSSID"]];
}
if(changed) {
NSLog(#"NetworksUpdated");
}
scanning = false;
NSLog(#"Scan Finished...");
NSLog(#"Found %i networks: %#", [networks count], networks);
Even if trying one of the other commented lines, it doesn't work:
program received EXC_BAD_ACCESS and several
warning: check_safe_call: could not restore current frame
warning: Unable to restore previously selected frame.
What i'm searching are hints how to include iphone-wireless in my project and how to modify the given code?
An alternative would be a tip on how to scan for WiFis in your environment.
Would be nice if someone could help.
path has changed in 3.X and beyond, from :
/System/Library/SystemConfiguration/Aeropuerto.bundle/Aeropuerto
to:
/System/Library/SystemConfiguration/IPConfiguration.bundle/IPConfifuration
Related
Is there a way to build an alert box that shows what the crash reason is? Specifically, what line of code is causing the crash?
My boss is asking for this, and I haven't found a way to make this possible. I'm going through the analytics tab on the device and finding the crash, but he wants something that populates on the device (it's an internal app) giving the reason for the crash.
Is this possible?
If you want to show an alert when app crashes you can't do that but you can read the crash log when you open the app again after a crash.
You could create a method with following logic, it basically reads back trace for last crash when you open the app again after a crash.
aslmsg q, m;
int i;
const char *key, *val;
float how_old = fTime ;
q = asl_new(ASL_TYPE_QUERY);
asl_set_query(q, ASL_KEY_LEVEL, strLoggerLevel ,ASL_QUERY_OP_LESS_EQUAL);
asl_set_query(q, ASL_KEY_FACILITY, [#"YourBundleIdOfAPP" UTF8String] ,ASL_QUERY_OP_EQUAL);
asl_set_query(q, ASL_KEY_TIME, [[NSString stringWithFormat:#"%.f", [[NSDate date] timeIntervalSince1970] - how_old] UTF8String], ASL_QUERY_OP_GREATER_EQUAL);
int goInside=0;
aslresponse r = asl_search(NULL, q);
while (NULL != (m = aslresponse_next(r)))
{
NSString *cValueToWrite;
NSMutableDictionary *tmpDict = [NSMutableDictionary dictionary];
for (i = 0; (NULL != (key = asl_key(m, i))); i++)
{
//get the only required fields
if(i==12 || i==10 || i==11 || i==8 || i==9 ||i==3)
{
NSString *keyString = [NSString stringWithUTF8String:(char *)key];
val = asl_get(m, key);
NSString *string = [NSString stringWithUTF8String:val];
[tmpDict setObject:string forKey:keyString];
}
}
cValueToWrite=[[NSString alloc]initWithFormat:#"\n--------------[Debug]----------------\nDateTime: %#\nApplication: %#\nInfo: %#",[tmpDict valueForKey:#"CFLog Local Time"],[tmpDict valueForKey:#"Sender"],[tmpDict valueForKey:#"Message"]];
}
strLoggerLevel is the NSString which hold the logger type which you want which ranges upto 7
I am trying to get info on all the albums/photos using the PHPhotoLibrary. I barely know objective C, and i've looked at some tutorial/sample but couldn't find everything that I needed.
Here is a link to the sample code I based my code on.
https://developer.apple.com/library/ios/samplecode/UsingPhotosFramework/Introduction/Intro.html#//apple_ref/doc/uid/TP40014575-Intro-DontLinkElementID_2
So far I was able to get the albums name and identifier. And I am getting a list of photos, I am able to get their identifier as well, but not the filename. But if I put a break point in my fonction and look at my PHAsset pointer values, I can see the filename there (inside _filename), but if I try to call the variable with the filename in it, the variable does not exist.
So if anyone can provide a sample code to get all info on albums/photos/thumbnail that would be awesome. Or just getting the filename would be a good help.
Here is the code I have tried so far:
-(void)awakeFromNib{
NSMutableArray *allPhotos = self.getAllPhotos;
for (int x = 0; x < allPhotos.count; x ++)
{
PHAsset *photo = [self getPhotoAtIndex:x];
PHAssetSourceType source = photo.sourceType;
NSString *id = photo.localIdentifier;
NSString *description = photo.description;
NSUInteger height = photo.pixelHeight;
NSUInteger width = photo.pixelWidth;
NSLog(#"Test photo info");
}
}
-(PHAsset*) getPhotoAtIndex:(NSInteger) index
{
return [self.getAllPhotos objectAtIndex:index];
}
-(NSMutableArray *) getAllPhotos
{
NSMutableArray *photos = [[NSMutableArray alloc] init];
PHFetchOptions *allPhotosOptions = [[PHFetchOptions alloc] init];
allPhotosOptions.sortDescriptors = #[[NSSortDescriptor sortDescriptorWithKey:#"creationDate" ascending:YES]];
PHFetchResult *allPhotos = [PHAsset fetchAssetsWithOptions:allPhotosOptions];
PHFetchResult *fetchResult = #[allPhotos][0];
for (int x = 0; x < fetchResult.count; x ++) {
PHAsset *asset = fetchResult[x];
photos[x] = asset;
}
return photos;
}
As you can see, I can get the image height and width, its id, but cannot get the url to it.
I have found a way to get the url of my photo.
-(void)getImageURL:(PHAsset*) asset
{
PHContentEditingInputRequestOptions *options = [[PHContentEditingInputRequestOptions alloc] init];
[options setCanHandleAdjustmentData:^BOOL(PHAdjustmentData *adjustmentData) {
return [adjustmentData.formatIdentifier isEqualToString:AdjustmentFormatIdentifier] && [adjustmentData.formatVersion isEqualToString:#"1.0"];
}];
[asset requestContentEditingInputWithOptions:options completionHandler:^(PHContentEditingInput *contentEditingInput, NSDictionary *info)
{
NSURL* url = contentEditingInput.fullSizeImageURL;
}];
}
Filenames in the Photos library are an implementation detail and subject to change. There are various private API for discovering them (or ways to use valueForKey or other public introspection APIs to find where they're hidden), they aren't something to be relied upon. In particular, an asset that's been edited is likely to have a different filename than the original.
What do you need a filename/URL for? If you're just uniquely identifying the asset across launches of your app, use localIdentifier. If you're showing it to the user... why? Something like IMG_0234.jpg vs IMG_5672.jpg has little meaning to the average user.
To fetch the assets in a specific album, use fetchAssetsInAssetCollection:options:. To fetch the album(s) containing a specific asset, use fetchAssetCollectionsContainingAsset:withType:options:. To discover the list(s) of albums, use other APIs on PHAssetCollection and its superclass PHCollection.
I want to create an Application that connects to the iPhoto Library. So now I would like to read the Events and the pictures themselves from the library.
Is there an elegant / easy way to do this or do I have to manually read the Bundle Structure of the iPhoto User Data?
So far I have only found a picture taker: Is there a UIImagePicker for the Mac Desktop
Update: I found another relevant SO post: Selecting iPhoto images within a cocoa application
You can do it with NSAppleScript. This is some copy/paste from my app, hacked up a bit just to show the idea.
NSAppleEventDescriptor d = .. compile this script ..
#"tell application \"iPhoto\" to properties of albums"
for (int i = 0; i < [d numberOfItems]; i++)
{
NSAppleEventDescriptor *albumDesc = [d descriptorAtIndex:i];
// <NSAppleEventDescriptor: 'ipal'{
// 'ID ':4.265e+09,
// 'purl':'utxt'("http://www.flickr.com/photos/..."),
// 'pnam':'utxt'("Vacation"),
// 'alTy':'pubs',
// 'alCh':[ ],
// 'alPx':'msng' }>
NSString *albumName = [[albumDesc descriptorForKeyword:'pnam'] stringValue];
NSString *albumId = [[albumDesc descriptorForKeyword:'ID '] stringValue];
You can do the same thing to find the images
NSString *scp =
[NSString stringWithFormat:#"tell application \"iPhoto\" to properties of photos of album id %#",
[album objectForKey:#"id"]];
NSAppleEventDescriptor *d = ... compile scp ...
// 1 based!?
for (int i = 1; i <= [d numberOfItems]; i++)
{
NSAppleEventDescriptor *photoDesc = [d descriptorAtIndex:i];
// Yes.. this happens. Not sure why?!
if (!photoDesc)
continue;
// <NSAppleEventDescriptor: 'ipmr'{
// 'pnam':'utxt'("IMG_0058.JPG"),
// 'pwid':768,
// 'pdim':[ 768, 1024 ],
// 'alti':1.79769e+308,
// 'filn':'utxt'("3133889525_10975ba071_b.jpg"),
// 'ipth':'utxt'("/Users/lagnat/Pictures/iPhoto Library/Masters/2010/11/10/20101110-002341/3133889525_10975ba071_b.jpg"),
// 'idat':'ldt '($F57C69C500000000$),
// 'rate':0,
// 'titl':'utxt'("IMG_0058.JPG"),
// 'phit':1024,
// 'itpt':'utxt'("/Users/lagnat/Pictures/iPhoto Library/Thumbnails/2010/11/10/20101110-002341/3133889525_10975ba071_b.jpg.jpg"),
// 'ID ':4.295e+09,
// 'lati':'msng',
// 'pcom':'utxt'(""),
// 'opth':'utxt'("/Users/lagnat/Pictures/iPhoto Library/Masters/2010/11/10/20101110-002341/3133889525_10975ba071_b.jpg"),
// 'lngt':'msng',
// 'tiln':'utxt'("3133889525_10975ba071_b.jpg.jpg") }>
NSString *path = [[photoDesc descriptorForKeyword:'ipth'] stringValue];
NSString *imgname = [[photoDesc descriptorForKeyword:'pnam'] stringValue];
If releasing apps on the App Store you are now required now required to use the Sandbox, this stops the previous AppleScript method from working (the iPhoto app launches but an empty set is returned).
iPhoto libraries consist of a directory structure containing photos, databases and XML files. The contents changes with each version of iPhoto so be careful if manually accessing these files.
If you just want the album details you can parse the file AlbumData.xml
If you would like photos you can browse the Masters folder. The files structure follows date rather than by the sets configured in iPhoto.
More information can be found on the internals of the iPhoto library here:
http://www.fatcatsoftware.com/iplm/Help/iphoto%20library%20internals.html
The majority of the databases are in SQLite format and so can be programmatically accessed through Objective C, though again you can expect schema changes between different versions of iPhoto. The main databases of interest are Library.apdb and Properties.apdb in Database/apdb.
If you still want to use the Apple Script method, here's a version of the previous answer with the Apple script execution part included:
NSAppleScript *script = [[NSAppleScript alloc] initWithSource:#"tell application \"iPhoto\" to properties of albums"];
NSAppleEventDescriptor *d = [script executeAndReturnError:nil];
NSLog(#"photo library count: %ld", (long)[d numberOfItems]);
for (int i = 0; i < [d numberOfItems]; i++)
{
NSAppleEventDescriptor *albumDesc = [d descriptorAtIndex:i];
NSString *albumName = [[albumDesc descriptorForKeyword:'pnam'] stringValue];
NSLog(#"%#", albumName);
}
It's possible to get list of classes from a bundle via NSBundleDidLoadNotification. But I can't figure out how I can get them from already loaded bundle. (same bundle with code)
I'm trying to get class list of my application bundle. More specifically, the classes only in my application binary.
I looked at objc_getClassList, but it returns ALL classes and it's obviously too heavy for me. I need lightweight method. I found objc_copyClassNamesForImage by googling, but it's not documented, and I don't know how to use it safely. I think I can try to use it conventionally, but I want to find another more safe option before going there.
Another option would be to iterate through all the classes registered with the runtime and use +[NSBundle bundleForClass:] on each one to figure out which one it came from. You can then sort things into sets based on the result.
Something like this:
#interface NSBundle (DDAdditions)
- (NSArray *)definedClasses_dd;
#end
#implementation NSBundle (DDAdditions)
- (NSArray *)definedClasses_dd {
NSMutableArray *array = [NSMutableArray array];
int numberOfClasses = objc_getClassList(NULL, 0);
Class *classes = calloc(sizeof(Class), numberOfClasses);
numberOfClasses = objc_getClassList(classes, numberOfClasses);
for (int i = 0; i < numberOfClasses; ++i) {
Class c = classes[i];
if ([NSBundle bundleForClass:c] == self) {
[array addObject:c];
}
}
free(classes);
return array;
}
#end
Then you can call:
NSLog(#"%#", [[NSBundle mainBundle] definedClasses_dd]);
Try this magic:
- (NSArray *)getClassNames {
NSMutableArray *classNames = [NSMutableArray array];
unsigned int count = 0;
const char **classes = objc_copyClassNamesForImage([[[NSBundle mainBundle] executablePath] UTF8String], &count);
for(unsigned int i=0;i<count;i++){
NSString *className = [NSString stringWithUTF8String:classes[i]];
[classNames addObject:className];
}
return classNames;
}
I could find some example for the function objc_copyClassNamesForImage at here.
http://www.opensource.apple.com/source/objc4/objc4-493.9/test/weak.m
// class name list
const char *image = class_getImageName(objc_getClass("NotMissingRoot"));
testassert(image);
const char **names = objc_copyClassNamesForImage(image, NULL);
testassert(names);
testassert(classInNameList(names, "NotMissingRoot"));
testassert(classInNameList(names, "NotMissingSuper"));
if (weakMissing) {
testassert(! classInNameList(names, "MissingRoot"));
testassert(! classInNameList(names, "MissingSuper"));
} else {
testassert(classInNameList(names, "MissingRoot"));
testassert(classInNameList(names, "MissingSuper"));
}
free(names);
The source code is unofficial but from Apple. So I decided to use this code until I find any better way.
I have the following code to detect the current window. How can I get 1) application internal name, 2) location, 3) publisher and 4) description of the window/application?
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
//Get info about the currently active application.
NSWorkspace* workspace = [NSWorkspace sharedWorkspace];
NSDictionary* currentAppInfo = [workspace activeApplication];
//Get the PSN of the current application.
UInt32 lowLong = [[currentAppInfo objectForKey:#"NSApplicationProcessSerialNumberLow"] longValue];
UInt32 highLong = [[currentAppInfo objectForKey:#"NSApplicationProcessSerialNumberHigh"] longValue];
ProcessSerialNumber currentAppPSN = {highLong,lowLong};
//Grab window information from the window server.
CFArrayRef windowList = CGWindowListCopyWindowInfo(kCGWindowListOptionOnScreenOnly, kCGNullWindowID);
ProcessSerialNumber myPSN = {kNoProcess, kNoProcess};
//Loop through the windows, the window list is ordered from front to back.
for (NSMutableDictionary* entry in (NSArray*) windowList)
{
int pid = [[entry objectForKey:(id)kCGWindowOwnerPID] intValue];
GetProcessForPID(pid, &myPSN);
//If the process of the current window in the list matches our process, get the front window number.
if(myPSN.lowLongOfPSN == currentAppPSN.lowLongOfPSN && myPSN.highLongOfPSN == currentAppPSN.highLongOfPSN)
{
NSNumber *windowNumber = [entry objectForKey:(id)kCGWindowNumber];
windowNumber = [entry objectForKey:(id)kCGWindowNumber];
NSString* applicationName = [entry objectForKey:(id)kCGWindowOwnerName];
NSLog(#"Capture the window: %# with window ID: %#.",applicationName,windowNumber);
return applicationName;
//Break because we only want the front window.
break;
}
}
CFRelease(windowList);
[pool release];
You should use the ProcessInformationCopyDictionary function from the Process Manager API. Give it &myPSN and kProcessDictionaryIncludeAllInformationMask as arguments and you will get the information you are looking for.
I was looking for something related with this topic. I need a WindowRef of the window or window part at a certain location (mouse position) and it has to be over all the windows of all running applications...
I´ve tried it with Carbon (´Cos my App is entirely written in C++) but I´ve found that Some Carbon Functions Doesn´t work properly (MacFindWindow, FindWindow, HIWindowFindAtLocation, FindWindowOfClass, HIWindowGetCGWindowID...)
Maybe I´m doing it wrong, It´s difficult to believe that those Carbon functions won´t work any more in 64 bits architectures...
So, related with your question I found the same code and I tried this but it isn´t what I need, I hope it helps you in any way and I´ll keep searching and trying till I get it (If the O.S can do it everybody should).
//if the process of the current window in the list matches our process, get the front window number
if(myPSN.lowLongOfPSN == currentAppPSN.lowLongOfPSN && myPSN.highLongOfPSN == currentAppPSN.highLongOfPSN)
{
NSNumber* windowNumber = [entry objectForKey:(id)kCGWindowNumber];
NSString* applicationName = [entry objectForKey:(id)kCGWindowOwnerName];
NSLog(#"The current app is %# and the window number of its front window is %#.",applicationName,windowNumber);
CGRect bounds;
CGRectMakeWithDictionaryRepresentation((CFDictionaryRef)[entry objectForKey:(id)kCGWindowBounds], &bounds);
NSLog(#"WINDOW RECT BOUNDS; (x,y,width, height) = (%d,%d, %d, %d)", bounds.origin.x, bounds.origin.y, bounds.size.width, bounds.size.height);
break;
}
Also, follow this link, I´t will help you. I´m sure:
http://code.google.com/p/blazingstars/source/browse/trunk/PokerHK/HKLowLevel.m?r=70