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APICallsViewController.m
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APICallsViewController.m
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/*
* Copyright 2010 Facebook
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import "APICallsViewController.h"
#import "HackbookAppDelegate.h"
#import "FBConnect.h"
#import "DataSet.h"
#import "APIResultsViewController.h"
#import "RootViewController.h"
// For re-using table cells
#define TITLE_TAG 1001
#define DESCRIPTION_TAG 1002
@implementation APICallsViewController
@synthesize apiTableView;
@synthesize apiMenuItems;
@synthesize apiHeader;
@synthesize savedAPIResult;
@synthesize locationManager;
@synthesize mostRecentLocation;
@synthesize activityIndicator;
@synthesize messageLabel;
@synthesize messageView;
- (id)initWithIndex:(NSUInteger)index {
self = [super init];
if (self) {
childIndex = index;
savedAPIResult = [[NSMutableArray alloc] initWithCapacity:1];
}
return self;
}
- (void)dealloc {
[apiTableView release];
[apiMenuItems release];
[apiHeader release];
[savedAPIResult release];
[locationManager stopUpdatingLocation];
locationManager.delegate = nil;
[locationManager release];
[mostRecentLocation release];
[activityIndicator release];
[messageLabel release];
[messageView release];
[super dealloc];
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - View lifecycle
- (void)loadView {
UIView *view = [[UIView alloc] initWithFrame:[UIScreen
mainScreen].applicationFrame];
[view setBackgroundColor:[UIColor whiteColor]];
self.view = view;
[view release];
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
NSDictionary *apiData = [[[delegate apiData] apiConfigData] objectAtIndex:childIndex];
self.navigationItem.title = [apiData objectForKey:@"title"];
apiMenuItems = [[NSArray arrayWithArray:[apiData objectForKey:@"menu"]] retain];
apiHeader = [[apiData objectForKey:@"description"] retain];
self.navigationItem.backBarButtonItem =
[[[UIBarButtonItem alloc] initWithTitle:@"Back"
style:UIBarButtonItemStyleBordered
target:nil
action:nil] autorelease];
// Main Menu Table
apiTableView = [[UITableView alloc] initWithFrame:self.view.bounds
style:UITableViewStylePlain];
[apiTableView setBackgroundColor:[UIColor whiteColor]];
apiTableView.dataSource = self;
apiTableView.delegate = self;
apiTableView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
[self.view addSubview:apiTableView];
// Activity Indicator
int xPosition = (self.view.bounds.size.width / 2.0) - 15.0;
int yPosition = (self.view.bounds.size.height / 2.0) - 15.0;
activityIndicator = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(xPosition, yPosition, 30, 30)];
activityIndicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyleGray;
[self.view addSubview:activityIndicator];
// Message Label for showing confirmation and status messages
CGFloat yLabelViewOffset = self.view.bounds.size.height-self.navigationController.navigationBar.frame.size.height-30;
messageView = [[UIView alloc]
initWithFrame:CGRectMake(0, yLabelViewOffset, self.view.bounds.size.width, 30)];
messageView.backgroundColor = [UIColor lightGrayColor];
UIView *messageInsetView = [[UIView alloc] initWithFrame:CGRectMake(1, 1, self.view.bounds.size.width-1, 28)];
messageInsetView.backgroundColor = [UIColor colorWithRed:255.0/255.0
green:248.0/255.0
blue:228.0/255.0
alpha:1];
messageLabel = [[UILabel alloc]
initWithFrame:CGRectMake(4, 1, self.view.bounds.size.width-10, 26)];
messageLabel.text = @"";
messageLabel.font = [UIFont fontWithName:@"Helvetica" size:14.0];
messageLabel.backgroundColor = [UIColor colorWithRed:255.0/255.0
green:248.0/255.0
blue:228.0/255.0
alpha:0.6];
[messageInsetView addSubview:messageLabel];
[messageView addSubview:messageInsetView];
[messageInsetView release];
messageView.hidden = YES;
[self.view addSubview:messageView];
}
- (void)viewDidUnload {
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return YES;
}
#pragma mark - Private Helper Methods
/*
* This method is called to store the check-in permissions
* in the app session after the permissions have been updated.
*/
- (void)updateCheckinPermissions {
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
[[delegate userPermissions] setObject:@"1" forKey:@"user_checkins"];
[[delegate userPermissions] setObject:@"1" forKey:@"publish_checkins"];
}
/*
* This method shows the activity indicator and
* deactivates the table to avoid user input.
*/
- (void)showActivityIndicator {
if (![activityIndicator isAnimating]) {
apiTableView.userInteractionEnabled = NO;
[activityIndicator startAnimating];
}
}
/*
* This method hides the activity indicator
* and enables user interaction once more.
*/
- (void)hideActivityIndicator {
if ([activityIndicator isAnimating]) {
[activityIndicator stopAnimating];
apiTableView.userInteractionEnabled = YES;
}
}
/*
* This method is used to display API confirmation and
* error messages to the user.
*/
- (void)showMessage:(NSString *)message {
CGRect labelFrame = messageView.frame;
labelFrame.origin.y = [UIScreen mainScreen].bounds.size.height - self.navigationController.navigationBar.frame.size.height - 20;
messageView.frame = labelFrame;
messageLabel.text = message;
messageView.hidden = NO;
// Use animation to show the message from the bottom then
// hide it.
[UIView animateWithDuration:0.5
delay:1.0
options: UIViewAnimationCurveEaseOut
animations:^{
CGRect labelFrame = messageView.frame;
labelFrame.origin.y -= labelFrame.size.height;
messageView.frame = labelFrame;
}
completion:^(BOOL finished){
if (finished) {
[UIView animateWithDuration:0.5
delay:3.0
options: UIViewAnimationCurveEaseOut
animations:^{
CGRect labelFrame = messageView.frame;
labelFrame.origin.y += messageView.frame.size.height;
messageView.frame = labelFrame;
}
completion:^(BOOL finished){
if (finished) {
messageView.hidden = YES;
messageLabel.text = @"";
}
}];
}
}];
}
/*
* This method hides the message, only needed if view closed
* and animation still going on.
*/
- (void)hideMessage {
messageView.hidden = YES;
messageLabel.text = @"";
}
/*
* This method handles any clean up needed if the view
* is about to disappear.
*/
- (void)viewWillDisappear:(BOOL)animated {
[super viewWillDisappear:animated];
// Hide the activitiy indicator
[self hideActivityIndicator];
// Hide the message.
[self hideMessage];
}
/**
* Helper method called when a button is clicked
*/
- (void)apiButtonClicked:(id)sender {
// Each menu button in the UITableViewController is initialized
// with a tag representing the table cell row. When the button
// is clicked the button is passed along in the sender object.
// From this object we can then read the tag property to determine
// which menu button was clicked.
SEL selector = NSSelectorFromString([[apiMenuItems objectAtIndex:[sender tag]] objectForKey:@"method"]);
if ([self respondsToSelector:selector]) {
[self performSelector:selector];
}
}
/**
* Helper method to parse URL query parameters
*/
- (NSDictionary *)parseURLParams:(NSString *)query {
NSArray *pairs = [query componentsSeparatedByString:@"&"];
NSMutableDictionary *params = [[[NSMutableDictionary alloc] init] autorelease];
for (NSString *pair in pairs) {
NSArray *kv = [pair componentsSeparatedByString:@"="];
NSString *val =
[[kv objectAtIndex:1]
stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
[params setObject:val forKey:[kv objectAtIndex:0]];
}
return params;
}
#pragma mark - Facebook API Calls
/*
* Graph API: Method to get the user's friends.
*/
- (void)apiGraphFriends {
[self showActivityIndicator];
// Do not set current API as this is commonly called by other methods
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
[[delegate facebook] requestWithGraphPath:@"me/friends" andDelegate:self];
}
/*
* Graph API: Method to get the user's permissions for this app.
*/
- (void)apiGraphUserPermissions {
[self showActivityIndicator];
currentAPICall = kAPIGraphUserPermissions;
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
[[delegate facebook] requestWithGraphPath:@"me/permissions" andDelegate:self];
}
/*
* Dialog: Authorization to grant the app check-in permissions.
*/
- (void)apiPromptCheckinPermissions {
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
NSArray *checkinPermissions = [[NSArray alloc] initWithObjects:@"user_checkins", @"publish_checkins", nil];
[[delegate facebook] authorize:checkinPermissions];
[checkinPermissions release];
}
/*
* --------------------------------------------------------------------------
* Login and Permissions
* --------------------------------------------------------------------------
*/
/*
* iOS SDK method that handles the logout API call and flow.
*/
- (void)apiLogout {
currentAPICall = kAPILogout;
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
[[delegate facebook] logout];
}
/*
* Graph API: App unauthorize
*/
- (void)apiGraphUserPermissionsDelete {
[self showActivityIndicator];
currentAPICall = kAPIGraphUserPermissionsDelete;
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
// Passing empty (no) parameters unauthorizes the entire app. To revoke individual permissions
// add a permission parameter with the name of the permission to revoke.
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:nil];
[[delegate facebook] requestWithGraphPath:@"me/permissions"
andParams:params
andHttpMethod:@"DELETE"
andDelegate:self];
}
/*
* Dialog: Authorization to grant the app user_likes permission.
*/
- (void)apiPromptExtendedPermissions {
currentAPICall = kDialogPermissionsExtended;
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
NSArray *extendedPermissions = [[NSArray alloc] initWithObjects:@"user_likes", nil];
[[delegate facebook] authorize:extendedPermissions];
[extendedPermissions release];
}
/**
* --------------------------------------------------------------------------
* News Feed
* --------------------------------------------------------------------------
*/
/*
* Dialog: Feed for the user
*/
- (void)apiDialogFeedUser {
currentAPICall = kDialogFeedUser;
SBJSON *jsonWriter = [[SBJSON new] autorelease];
// The action links to be shown with the post in the feed
NSArray* actionLinks = [NSArray arrayWithObjects:[NSDictionary dictionaryWithObjectsAndKeys:
@"Get Started",@"name",@"http://m.facebook.com/apps/hackbookios/",@"link", nil], nil];
NSString *actionLinksStr = [jsonWriter stringWithObject:actionLinks];
// Dialog parameters
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
@"I'm using the Hackbook for iOS app", @"name",
@"Hackbook for iOS.", @"caption",
@"Check out Hackbook for iOS to learn how you can make your iOS apps social using Facebook Platform.", @"description",
@"http://m.facebook.com/apps/hackbookios/", @"link",
@"http://www.facebookmobileweb.com/hackbook/img/facebook_icon_large.png", @"picture",
actionLinksStr, @"actions",
nil];
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
[[delegate facebook] dialog:@"feed"
andParams:params
andDelegate:self];
}
/*
* Helper method to first get the user's friends then
* pick one friend and post on their wall.
*/
- (void)getFriendsCallAPIDialogFeed {
// Call the friends API first, then set up for targeted Feed Dialog
currentAPICall = kAPIFriendsForDialogFeed;
[self apiGraphFriends];
}
/*
* Dialog: Feed for friend
*/
- (void)apiDialogFeedFriend:(NSString *)friendID {
currentAPICall = kDialogFeedFriend;
SBJSON *jsonWriter = [[SBJSON new] autorelease];
NSArray* actionLinks = [NSArray arrayWithObjects:[NSDictionary dictionaryWithObjectsAndKeys:
@"Get Started",@"name",@"http://m.facebook.com/apps/hackbookios/",@"link", nil], nil];
NSString *actionLinksStr = [jsonWriter stringWithObject:actionLinks];
// The "to" parameter targets the post to a friend
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
friendID, @"to",
@"I'm using the Hackbook for iOS app", @"name",
@"Hackbook for iOS.", @"caption",
@"Check out Hackbook for iOS to learn how you can make your iOS apps social using Facebook Platform.", @"description",
@"http://m.facebook.com/apps/hackbookios/", @"link",
@"http://www.facebookmobileweb.com/hackbook/img/facebook_icon_large.png", @"picture",
actionLinksStr, @"actions",
nil];
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
[[delegate facebook] dialog:@"feed"
andParams:params
andDelegate:self];
}
/*
* --------------------------------------------------------------------------
* Requests
* --------------------------------------------------------------------------
*/
/*
* Dialog: Requests - send to all.
*/
- (void)apiDialogRequestsSendToMany {
currentAPICall = kDialogRequestsSendToMany;
SBJSON *jsonWriter = [[SBJSON new] autorelease];
NSDictionary *gift = [NSDictionary dictionaryWithObjectsAndKeys:
@"5", @"social_karma",
@"1", @"badge_of_awesomeness",
nil];
NSString *giftStr = [jsonWriter stringWithObject:gift];
NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
@"Learn how to make your iOS apps social.", @"message",
@"Check this out", @"notification_text",
giftStr, @"data",
nil];
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
[[delegate facebook] dialog:@"apprequests"
andParams:params
andDelegate:self];
}
/*
* API: Legacy REST for getting the friends using the app. This is a helper method
* being used to target app requests in follow-on examples.
*/
- (void)apiRESTGetAppUsers {
[self showActivityIndicator];
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
@"friends.getAppUsers", @"method",
nil];
[[delegate facebook] requestWithParams:params
andDelegate:self];
}
/*
* Dialog: Requests - send to friends not currently using the app.
*/
- (void)apiDialogRequestsSendToNonUsers:(NSArray *)selectIDs {
currentAPICall = kDialogRequestsSendToSelect;
NSString *selectIDsStr = [selectIDs componentsJoinedByString:@","];
NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
@"Learn how to make your iOS apps social.", @"message",
@"Check this out", @"notification_text",
selectIDsStr, @"suggestions",
nil];
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
[[delegate facebook] dialog:@"apprequests"
andParams:params
andDelegate:self];
}
/*
* Dialog: Requests - send to select users, in this case friends
* that are currently using the app.
*/
- (void)apiDialogRequestsSendToUsers:(NSArray *)selectIDs {
currentAPICall = kDialogRequestsSendToSelect;
NSString *selectIDsStr = [selectIDs componentsJoinedByString:@","];
NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
@"It's your turn to visit the Hackbook for iOS app.", @"message",
selectIDsStr, @"suggestions",
nil];
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
[[delegate facebook] dialog:@"apprequests"
andParams:params
andDelegate:self];
}
/*
* Dialog: Request - send to a targeted friend.
*/
- (void)apiDialogRequestsSendTarget:(NSString *)friend {
currentAPICall = kDialogRequestsSendToTarget;
NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
@"Learn how to make your iOS apps social.", @"message",
friend, @"to",
nil];
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
[[delegate facebook] dialog:@"apprequests"
andParams:params
andDelegate:self];
}
/*
* Helper method to get friends using the app which will in turn
* send a request to NON users.
*/
- (void)getAppUsersFriendsNotUsing {
currentAPICall = kAPIGetAppUsersFriendsNotUsing;
[self apiRESTGetAppUsers];
}
/*
* Helper method to get friends using the app which will in turn
* send a request to current app users.
*/
- (void)getAppUsersFriendsUsing {
currentAPICall = kAPIGetAppUsersFriendsUsing;
[self apiRESTGetAppUsers];
}
/*
* Helper method to get the users friends which will in turn
* pick one to send a request.
*/
- (void)getUserFriendTargetDialogRequest {
currentAPICall = kAPIFriendsForTargetDialogRequests;
[self apiGraphFriends];
}
/*
* API: Enable frictionless in the SDK, retrieve friends enabled for frictionless send
*/
- (void)enableFrictionlessAppRequests {
HackbookAppDelegate *delegate =
(HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
// Enable frictionless app requests
[[delegate facebook] enableFrictionlessRequests];
UIAlertView *alertView = [[UIAlertView alloc]
initWithTitle:@"Enabled Frictionless Requests"
message:@"Request actions such as\n"
@"Send Request and Send Invite\n"
@"now support frictionless behavior."
delegate:self
cancelButtonTitle:@"OK"
otherButtonTitles:nil,
nil];
[alertView show];
}
/*
* --------------------------------------------------------------------------
* Graph API
* --------------------------------------------------------------------------
*/
/*
* Graph API: Get the user's basic information, picking the name and picture fields.
*/
- (void)apiGraphMe {
[self showActivityIndicator];
currentAPICall = kAPIGraphMe;
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
@"name,picture", @"fields",
nil];
[[delegate facebook] requestWithGraphPath:@"me" andParams:params andDelegate:self];
}
/*
* Graph API: Get the user's friends
*/
- (void)getUserFriends {
currentAPICall = kAPIGraphUserFriends;
[self apiGraphFriends];
}
/*
* Graph API: Get the user's check-ins
*/
- (void)apiGraphUserCheckins {
[self showActivityIndicator];
currentAPICall = kAPIGraphUserCheckins;
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
[[delegate facebook] requestWithGraphPath:@"me/checkins" andDelegate:self];
}
/*
* Helper method to check the user permissions which were stored in the app session
* when the app was started. After the check decide on whether to prompt for user
* check-in permissions first or get the check-in information.
*/
- (void)getPermissionsCallUserCheckins {
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
if ([[delegate userPermissions] objectForKey:@"user_checkins"]) {
[self apiGraphUserCheckins];
} else {
currentAPICall = kDialogPermissionsCheckinForRecent;
[self apiPromptCheckinPermissions];
}
}
/*
* Graph API: Search query to get nearby location.
*/
- (void)apiGraphSearchPlace:(CLLocation *)location {
[self showActivityIndicator];
currentAPICall = kAPIGraphSearchPlace;
NSString *centerLocation = [[NSString alloc] initWithFormat:@"%f,%f",
location.coordinate.latitude,
location.coordinate.longitude];
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
@"place", @"type",
centerLocation, @"center",
@"1000", @"distance",
nil];
[centerLocation release];
[[delegate facebook] requestWithGraphPath:@"search" andParams:params andDelegate:self];
}
/*
* Method called when user location found. Calls the search API with the most
* recent location reading.
*/
- (void)processLocationData {
// Stop updating location information
[locationManager stopUpdatingLocation];
locationManager.delegate = nil;
// Call the API to get nearby search results
[self apiGraphSearchPlace:mostRecentLocation];
}
/*
* Helper method to kick off GPS to get the user's location.
*/
- (void)getNearby {
[self showActivityIndicator];
// A warning if the user turned off location services.
if (![CLLocationManager locationServicesEnabled]) {
UIAlertView *servicesDisabledAlert = [[UIAlertView alloc] initWithTitle:@"Location Services Disabled" message:@"You currently have all location services for this device disabled. If you proceed, you will be asked to confirm whether location services should be reenabled." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[servicesDisabledAlert show];
[servicesDisabledAlert release];
}
// Start the location manager
self.locationManager = [[[CLLocationManager alloc] init] autorelease];
locationManager.delegate = self;
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[locationManager startUpdatingLocation];
// Time out if it takes too long to get a reading.
[self performSelector:@selector(processLocationData) withObject:nil afterDelay:15.0];
}
/*
* Helper method to check the user permissions which were stored in the app session
* when the app was started. After the check decide on whether to prompt for user
* check-in permissions first or get the user's location which will in turn search
* for nearby places the user can then check-in to.
*/
- (void)getPermissionsCallNearby {
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
if ([[delegate userPermissions] objectForKey:@"publish_checkins"]) {
[self getNearby];
} else {
currentAPICall = kDialogPermissionsCheckinForPlaces;
[self apiPromptCheckinPermissions];
}
}
/*
* Graph API: Upload a photo. By default, when using me/photos the photo is uploaded
* to the application album which is automatically created if it does not exist.
*/
- (void)apiGraphUserPhotosPost {
[self showActivityIndicator];
currentAPICall = kAPIGraphUserPhotosPost;
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
// Download a sample photo
NSURL *url = [NSURL URLWithString:@"http://www.facebook.com/images/devsite/iphone_connect_btn.jpg"];
NSData *data = [NSData dataWithContentsOfURL:url];
UIImage *img = [[UIImage alloc] initWithData:data];
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
img, @"picture",
nil];
[[delegate facebook] requestWithGraphPath:@"me/photos"
andParams:params
andHttpMethod:@"POST"
andDelegate:self];
}
/*
* Graph API: Post a video to the user's wall.
*/
- (void)apiGraphUserVideosPost {
[self showActivityIndicator];
currentAPICall = kAPIGraphUserVideosPost;
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
// Download a sample video
NSURL *url = [NSURL URLWithString:@"https://developers.facebook.com/attachment/sample.mov"];
NSData *data = [NSData dataWithContentsOfURL:url];
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
data, @"video.mov",
@"video/quicktime", @"contentType",
@"Video Test Title", @"title",
@"Video Test Description", @"description",
nil];
[[delegate facebook] requestWithGraphPath:@"me/videos"
andParams:params
andHttpMethod:@"POST"
andDelegate:self];
}
#pragma mark - UITableViewDatasource and UITableViewDelegate Methods
- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section {
if (section == 0) {
UITextView *headerTextView = [[[UITextView alloc]
initWithFrame:CGRectMake(10, 10, tableView.bounds.size.width, 60.0)] autorelease];
headerTextView.textAlignment = UITextAlignmentLeft;
headerTextView.backgroundColor = [UIColor colorWithRed:0.9
green:0.9
blue:0.9 alpha:1];
headerTextView.font = [UIFont fontWithName:@"Helvetica" size:14.0];
headerTextView.text = self.apiHeader;
return headerTextView;
} else {
return nil;
}
}
- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section {
if (section == 0) {
// Automatically size the header for this API section
CGSize constraintSize = CGSizeMake(280.0f, MAXFLOAT);
UIFont *titleFont = [UIFont fontWithName:@"Helvetica" size:14.0];
CGSize labelSize = [self.apiHeader sizeWithFont:titleFont
constrainedToSize:constraintSize
lineBreakMode:UILineBreakModeWordWrap];
return labelSize.height + 20;
} else {
return 0.0;
}
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
if (indexPath.section == 0) {
return 0.0;
} else {
// Automatically size the table row based on the content
CGSize constraintSize = CGSizeMake(280.0f, MAXFLOAT);
NSString *cellText = [[apiMenuItems objectAtIndex:indexPath.row] objectForKey:@"title"];
UIFont *cellFont = [UIFont boldSystemFontOfSize:14.0];
CGSize labelSize = [cellText sizeWithFont:cellFont
constrainedToSize:constraintSize
lineBreakMode:UILineBreakModeWordWrap];
NSString *detailCellText = [[apiMenuItems objectAtIndex:indexPath.row] objectForKey:@"description"];
UIFont *detailCellFont = [UIFont fontWithName:@"Helvetica" size:12.0];;
CGSize detailLabelSize = [detailCellText sizeWithFont:detailCellFont
constrainedToSize:constraintSize
lineBreakMode:UILineBreakModeWordWrap];
return labelSize.height + detailLabelSize.height + 74;
}
}
// Customize the number of sections in the table view.
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 2;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
if (section == 0) {
return 0;
} else {
return [apiMenuItems count];
}
}
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UILabel *textLabel;
UILabel *detailTextLabel;
UIButton *button;
UIFont *cellFont = [UIFont boldSystemFontOfSize:14.0];
UIFont *detailCellFont = [UIFont fontWithName:@"Helvetica" size:12.0];
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
// Initialize API title UILabel
textLabel = [[[UILabel alloc] initWithFrame:CGRectZero] autorelease];
textLabel.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleRightMargin;
textLabel.tag = TITLE_TAG;
textLabel.font = cellFont;
[cell.contentView addSubview:textLabel];
// Initialize API description UILabel
detailTextLabel = [[[UILabel alloc] initWithFrame:CGRectZero] autorelease];
detailTextLabel.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleRightMargin;
detailTextLabel.tag = DESCRIPTION_TAG;
detailTextLabel.font = detailCellFont;
detailTextLabel.textColor = [UIColor darkGrayColor];
detailTextLabel.lineBreakMode = UILineBreakModeWordWrap;
detailTextLabel.numberOfLines = 0;
[cell.contentView addSubview:detailTextLabel];
// Initialize API button UIButton
button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleRightMargin;
[button setBackgroundImage:[[UIImage imageNamed:@"MenuButton.png"]
stretchableImageWithLeftCapWidth:9 topCapHeight:9]
forState:UIControlStateNormal];
[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[button addTarget:self action:@selector(apiButtonClicked:) forControlEvents:UIControlEventTouchUpInside];
[cell.contentView addSubview:button];
} else {
textLabel = (UILabel *)[cell.contentView viewWithTag:TITLE_TAG];
detailTextLabel = (UILabel *)[cell.contentView viewWithTag:DESCRIPTION_TAG];
// For the button cannot search by tag since it is not constant
// and is dynamically used figure out which button is clicked.
// So instead we loop through subviews of the cell to find the button.
for (UIView *subview in cell.contentView.subviews) {
if([subview isKindOfClass:[UIButton class]]) {
button = (UIButton *)subview;
}
}
}
CGSize constraintSize = CGSizeMake(280.0f, MAXFLOAT);
// The API title
NSString *cellText = [[apiMenuItems objectAtIndex:indexPath.row] objectForKey:@"title"];
CGSize labelSize = [cellText sizeWithFont:cellFont
constrainedToSize:constraintSize
lineBreakMode:UILineBreakModeWordWrap];
textLabel.frame = CGRectMake(20, 2,
(cell.contentView.frame.size.width-40),
labelSize.height);
textLabel.text = cellText;
// The API description
NSString *detailCellText = [[apiMenuItems objectAtIndex:indexPath.row] objectForKey:@"description"];
CGSize detailLabelSize = [detailCellText sizeWithFont:detailCellFont
constrainedToSize:constraintSize
lineBreakMode:UILineBreakModeWordWrap];
detailTextLabel.frame = CGRectMake(20, (labelSize.height + 4),
(cell.contentView.frame.size.width-40),
detailLabelSize.height);
detailTextLabel.text = detailCellText;
// The API button
CGFloat yButtonOffset = labelSize.height + detailLabelSize.height + 15;
button.frame = CGRectMake(20, yButtonOffset, (cell.contentView.frame.size.width-40), 44);
[button setTitle:[[apiMenuItems objectAtIndex:indexPath.row] objectForKey:@"button"]
forState:UIControlStateNormal];
// Set the tag that will later identify the button that is clicked.
button.tag = indexPath.row;
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
}
#pragma mark - CLLocationManager Delegate Methods
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation {
// We will care about horizontal accuracy for this example
// Try and avoid cached measurements
NSTimeInterval locationAge = -[newLocation.timestamp timeIntervalSinceNow];
if (locationAge > 5.0) return;
// test that the horizontal accuracy does not indicate an invalid measurement
if (newLocation.horizontalAccuracy < 0) return;
// test the measurement to see if it is more accurate than the previous measurement
if (mostRecentLocation == nil || mostRecentLocation.horizontalAccuracy > newLocation.horizontalAccuracy) {
// Store current location
self.mostRecentLocation = newLocation;
if (newLocation.horizontalAccuracy <= locationManager.desiredAccuracy) {
// Measurement is good
[self processLocationData];
// we can also cancel our previous performSelector:withObject:afterDelay: - it's no longer necessary
[NSObject cancelPreviousPerformRequestsWithTarget:self
selector:@selector(processLocationData)
object:nil];
}
}
}
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {
if ([error code] != kCLErrorLocationUnknown) {
[locationManager stopUpdatingLocation];
locationManager.delegate = nil;
}
[self hideActivityIndicator];
}
#pragma mark - FBRequestDelegate Methods
/**
* Called when the Facebook API request has returned a response. This callback
* gives you access to the raw response. It's called before
* (void)request:(FBRequest *)request didLoad:(id)result,
* which is passed the parsed response object.
*/
- (void)request:(FBRequest *)request didReceiveResponse:(NSURLResponse *)response {
//NSLog(@"received response");
}
/**
* Called when a request returns and its response has been parsed into
* an object. The resulting object may be a dictionary, an array, a string,
* or a number, depending on the format of the API response. If you need access
* to the raw response, use:
*
* (void)request:(FBRequest *)request
* didReceiveResponse:(NSURLResponse *)response
*/
- (void)request:(FBRequest *)request didLoad:(id)result {
[self hideActivityIndicator];
if ([result isKindOfClass:[NSArray class]] && ([result count] > 0)) {
result = [result objectAtIndex:0];
}
switch (currentAPICall) {
case kAPIGraphUserPermissionsDelete:
{
[self showMessage:@"User uninstalled app"];
HackbookAppDelegate *delegate = (HackbookAppDelegate *)[[UIApplication sharedApplication] delegate];
// Nil out the session variables to prevent
// the app from thinking there is a valid session
[delegate facebook].accessToken = nil;
[delegate facebook].expirationDate = nil;
// Notify the root view about the logout.
RootViewController *rootViewController = (RootViewController *)[[self.navigationController viewControllers] objectAtIndex:0];
[rootViewController fbDidLogout];
break;
}
case kAPIFriendsForDialogFeed:
{
NSArray *resultData = [result objectForKey: @"data"];
// Check that the user has friends
if ([resultData count] > 0) {
// Pick a random friend to post the feed to
int randomNumber = arc4random() % [resultData count];
[self apiDialogFeedFriend:
[[resultData objectAtIndex: randomNumber] objectForKey: @"id"]];
} else {
[self showMessage:@"You do not have any friends to post to."];
}
break;
}
case kAPIGetAppUsersFriendsNotUsing:
{
// Save friend results
[savedAPIResult release];
savedAPIResult = nil;
// Many results
if ([result isKindOfClass:[NSArray class]]) {
savedAPIResult = [[NSMutableArray alloc] initWithArray:result copyItems:YES];
} else if ([result isKindOfClass:[NSDecimalNumber class]]) {
savedAPIResult = [[NSMutableArray alloc] initWithObjects:[result stringValue], nil];
}
// Set up to get friends
currentAPICall = kAPIFriendsForDialogRequests;
[self apiGraphFriends];
break;
}
case kAPIGetAppUsersFriendsUsing:
{
NSMutableArray *friendsWithApp = [[NSMutableArray alloc] initWithCapacity:1];
// Many results
if ([result isKindOfClass:[NSArray class]]) {
friendsWithApp = [[NSMutableArray alloc] initWithArray:result copyItems:YES];
} else if ([result isKindOfClass:[NSDecimalNumber class]]) {
friendsWithApp = [[NSMutableArray alloc] initWithObjects:[result stringValue], nil];