XCode 2012 Tips

http://www.nshipster.com/reader-submissions-new-years-2013/

Undo last commit and re-commit

http://stackoverflow.com/questions/927358/git-undo-last-commit



$ git reset --soft HEAD^      (1)
$ git commit -c ORIG_HEAD     (2)

Kill all xcode related processes

ps axww | grep -i xcode | cut -d " " -f1 | while read i; do kill -9 $i; done;

Symbolicate crash files

Source: https://github.com/amleszk/scripts/blob/master/ios-crashlog-symbolicatecrash.sh







#!/bin/sh



if [ $# -ne 2 ]

then

  echo "Usage: Copy 'app_name'.app and 'app_name'.app.dSYM into `dirname $0` and run"

  echo "`basename $0` app_name crash_file.crash"

  exit 1

fi



CRASH=$2

APP=$1

DEVELOPER_DIR=`xcode-select --print-path`

export DEVELOPER_DIR

SYMBOLICATE_PATH=${DEVELOPER_DIR}/Platforms/iPhoneOS.platform/Developer/Library//PrivateFrameworks/DTDeviceKit.framework/Versions/A/Resources/symbolicatecrash



set -e



CRASH_UUID=`grep --after-context=2 "Binary Images:" "${CRASH}" | grep "${APP}" | grep -o "<.*>" | sed -E "s/<(.*)>/\1/"`

echo "Found crash UUID: \"${CRASH_UUID}\""



APP_UUID=`dwarfdump --uuid ${APP}.app/${APP} | cut -d ' ' -f 2`

echo "Found app UUID: \"${APP_UUID}\""



DYSYM_UUID=`dwarfdump --uuid ${APP}.app.dSYM  | cut -d ' ' -f 2`

echo "Found dsym UUID: \"${DYSYM_UUID}\""



echo "-----------------------------------"

echo "UUID's must match ${CRASH_UUID} ${APP_UUID} ${DYSYM_UUID}"

echo "-----------------------------------"



mdfind "com_apple_xcode_dsym_uuids = *"

"${SYMBOLICATE_PATH}" "${CRASH}"

CISSP 2012 Changes

https://secureninja.com/news/10/Changes-to-the-ISC2-CISSP-CBK-January-2012/

Photoshop preferences location

Where is photoshop preferences located on OSX / Mac?

/Users/[user]/Library/Preferences/Adobe\ Photoshop\ CS3\ Settings/Adobe\ Photoshop\ CS3\ Prefs.psp

Hide back button UINavigationItem

self.navigationItem.leftBarButtonItem = nil;

self.navigationItem.hidesBackButton = YES;

UINavigationController added as a subview not showing up in UIViewController

If your UINavigationController is not being shown as a subview, it might be named 'navigationController" which is the same as UIViewController's inherited object.  Rename your custom navigationController to a different name to ensure it does not conflict with the inherited object.

I was bit in the butt by this when I switched my inherited class from UINavigationController to UIViewController.

Android - R cannot be resolved to a variable

Project Properties -> Google Apis (make sure it is checked).  After each checkout / update from git, this is unchecked for my environment (for whatever reason.)
Project -> Clean
Project -> Build

Autoresizing masks programatically

http://stackoverflow.com/questions/7754851/autoresizing-masks-programmatically-vs-interfact-builder-xib-nib

Can't interact with bottom screen iOS Retina 4 inch

If you cannot interact with the bottom portion of the new iPhone simulator, be sure you are setting the frame of the main window.  If you configured the window with the nib, it defaults to 480 screen size, thus any UI objects located beyond the 480 screen size cannot be interacted with.  To solve, in your launched app delegate:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{
    [window setFrame:CGRectMake(0, 0, [[UIScreen mainScreen]bounds].size.width, [[UIScreen mainScreen]bounds].size.height)];

Bash Redirection Cheat Sheet

http://www.catonmat.net/download/bash-redirections-cheat-sheet.pdf

UIGestureRecognizer being handled differently on iOS6 vs iOS5

Noticed that UIGestureRecognizer would still fire off in iOS5 after a UIButton was selected.

On iOS6, the UIGestureRecognizer would not fire off if the UIButton was selected.

UIProgressBar download file

Helpful example of creating your own progress bar download.  Utilizes connection:(NSURLConnection *) delegate methods:


http://www.developers-life.com/progress-bar-download-file-on-iphone.html

Critical components:
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
    [self.receivedData appendData:data];
    
    NSInteger receivedLen = [data length];
    bytesReceived = (bytesReceived + receivedLen);
    
    if(expectedBytes != NSURLResponseUnknownLength) {
        self.progress = ((bytesReceived/(float)expectedBytes)*100)/100;
        percentComplete = self.progress*100;
    }
    
    [delegate downloadBarUpdated:self];
}

- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
    [self.delegate downloadBar:self didFailWithError:error];
    [connection release];
}

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
    expectedBytes = [response expectedContentLength];
}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
    [self.delegate downloadBar:self didFinishWithData:self.receivedData suggestedFilename:localFilename];
    [connection release];
}

Fitting all map annotations for display iOS

If you support iOS4+, use the method of creating a MKMapRect to display

MKMapRect zoomRect = MKMapRectNull;

if ([mView.annotations count] == 0) return;

NSInteger count=0;

for (id <MKAnnotation> annotation in mapView.annotations){

if( [annotation isKindOfClass:[MapViewAnnotation class]] && annotation.coordinate.latitude != 0 && annotation.coordinate.longitude != 0 ){

MKMapPoint annotationPoint = MKMapPointForCoordinate(annotation.coordinate);

MKMapRect pointRect = MKMapRectMake(annotationPoint.x, annotationPoint.y, 0, 0);

if (MKMapRectIsNull(zoomRect)) {

zoomRect = pointRect;

}

else {

zoomRect = MKMapRectUnion(zoomRect, pointRect);

}

count++;

}

}

MKCoordinateRegion region = MKCoordinateRegionForMapRect(zoomRect);

[mapView setRegion:region];

If you need to support iOS3, loop through the annotations to find the top left and bottom most right annotation to figure out largest region to display:

CLLocationCoordinate2D topLeftCoord; 

    topLeftCoord.latitude = -90; 

    topLeftCoord.longitude = 180; 

    CLLocationCoordinate2D bottomRightCoord; 

    bottomRightCoord.latitude = 90; 

    bottomRightCoord.longitude = -180; 

NSInteger i=0;

    for(MapViewAnnotation *annotation in mView.annotations) { 

if(

  ([annotation isKindOfClass:[MapViewAnnotation class]] || [annotation isKindOfClass:[MKPointAnnotation class]] == includeKml) 

  && (![annotation isKindOfClass:[MKUserLocation class]])

  ){

topLeftCoord.longitude = fmin(topLeftCoord.longitude, annotation.coordinate.longitude); 

topLeftCoord.latitude = fmax(topLeftCoord.latitude, annotation.coordinate.latitude); 

bottomRightCoord.longitude = fmax(bottomRightCoord.longitude, annotation.coordinate.longitude); 

bottomRightCoord.latitude = fmin(bottomRightCoord.latitude, annotation.coordinate.latitude); 

i++;

}

    } 

    MKCoordinateRegion region; 

    region.center.latitude = topLeftCoord.latitude - (topLeftCoord.latitude - bottomRightCoord.latitude) * 0.5; 

    region.center.longitude = topLeftCoord.longitude + (bottomRightCoord.longitude - topLeftCoord.longitude) * 0.5;      

    region.span.latitudeDelta = fabs(topLeftCoord.latitude - bottomRightCoord.latitude) * 1.1; 

    // Add a little extra space on the sides 

    region.span.longitudeDelta = fabs(bottomRightCoord.longitude - topLeftCoord.longitude) * 1.1; 

    // Add a little extra space on the sides 

    region = [mView regionThatFits:region]; 

    [mView setRegion:region animated:YES]; 

Convert pixel length to latitude longitude difference iOS

//  1.  Get difference from center of map to top middle of map (200 pixel difference).

//  2.  Convert this pixel difference into difference of latitude

//  3.  Reset the mapView center point with the new offset

//Grab the pixel difference from the center of the mapview

CGPoint centerOfMap = CGPointMake(mapView.frame.size.width/2, mapView.frame.size.height/2);

CGPoint topMidOfMap = CGPointMake(centerOfMap.x, centerOfMap.y-200); //Step 1

//Now get difference of longitude and latitude

CLLocationCoordinate2D centerOfMapCoord = [mapView convertPoint:centerOfMap toCoordinateFromView:mapView];   //Step 2

CLLocationCoordinate2D topMidOfMapCoord = [mapView convertPoint:topMidOfMap toCoordinateFromView:mapView]; //Step 2

CGFloat latitudeDiff = topMidOfMapCoord.latitude - centerOfMapCoord.latitude; //Step 2

coord.latitude -= latitudeDiff;

[mapView setCenterCoordinate:coord zoomLevel:default_zoom animated:NO]; //Step 3

Converting screen size (pixels) to Longitude Latitude

http://stackoverflow.com/questions/11019965/convert-screen-size-pixels-to-latitude-longitude

git changed files in log

git log --name-only

iPhone 5 Resolution Hack crash

Modifying the plist file directly:

open /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Applications/iPhone Simulator.app/Contents/Resources/Devices/iPhone (Retina).deviceinfo/Info.plist

May cause XCode to crash, most likely due to permission issues.  Copy the Info.plist file into a temporary directory first.  Modify the copied Info.plist file with XCode, then copy back into the directory using sudo.

Original article:
http://www.ijailbreak.com/how-to/run-apps-640-x-1136-iphone-5-resolution-hack/

iOS Auto resizing subviews

I have the parent view: self.view and a subview: UIImageView *pinView.

I would like pinView resize when self.view becomes resized.  To accomplish this:

[pinView setAutoresizingMask:UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight];

Early attempts that did NOT work:

[self.view setAutoresizesSubviews:YES];

[self.view setAutoresizingMask:UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight];

You will need to apply the autoresize mask to the subview you want resized.

Simulate Slow Connection / Throttling Connection

Helpful command to test against low connections (mimicking 3G or worse):

OSX:

sudo ipfw add pipe 1 src-port http
ipfw pipe 1 config delay 200 bw 300kbit/s

To restore your connection:

ipfw flush

IOS 6 TWTweetComposeViewController canSendTweet Bug

[TWTweetComposeViewController canSendTweet]  seems to be returning false always on iOS6.  Anyone have additional information or experiencing the same problems?

Online Regular Expression Tester

Nice online Regular Expression tester:

http://www.gskinner.com/RegExr/

What do I have to do to get Core Data to automatically migrate models?

http://stackoverflow.com/questions/1018155/what-do-i-have-to-do-to-get-core-data-to-automatically-migrate-models

Using Kindle Fire as an Android Dev test device

http://mobile.tutsplus.com/tutorials/android/getting-started-with-kindle-fire-development/