+++ /dev/null
-//
-// IASKAppSettingsViewController.m
-// http://www.inappsettingskit.com
-//
-// Copyright (c) 2009-2010:
-// Luc Vandal, Edovia Inc., http://www.edovia.com
-// Ortwin Gentz, FutureTap GmbH, http://www.futuretap.com
-// All rights reserved.
-//
-// It is appreciated but not required that you give credit to Luc Vandal and Ortwin Gentz,
-// as the original authors of this code. You can give credit in a blog post, a tweet or on
-// a info page of your app. Also, the original authors appreciate letting them know if you use this code.
-//
-// This code is licensed under the BSD license that is available at: http://www.opensource.org/licenses/bsd-license.php
-//
-
-
-#import "IASKAppSettingsViewController.h"
-#import "IASKSettingsReader.h"
-#import "IASKPSToggleSwitchSpecifierViewCell.h"
-#import "IASKPSSliderSpecifierViewCell.h"
-#import "IASKPSTextFieldSpecifierViewCell.h"
-#import "IASKPSTitleValueSpecifierViewCell.h"
-#import "IASKSwitch.h"
-#import "IASKSlider.h"
-#import "IASKSpecifier.h"
-#import "IASKSpecifierValuesViewController.h"
-#import "IASKTextField.h"
-
-static const CGFloat KEYBOARD_ANIMATION_DURATION = 0.3;
-static const CGFloat MINIMUM_SCROLL_FRACTION = 0.2;
-static const CGFloat MAXIMUM_SCROLL_FRACTION = 0.8;
-
-static NSString *kIASKCredits = @"Powered by InAppSettingsKit"; // Leave this as-is!!!
-
-#define kIASKSpecifierValuesViewControllerIndex 0
-#define kIASKSpecifierChildViewControllerIndex 1
-
-#define kIASKCreditsViewWidth 285
-
-@interface IASKAppSettingsViewController ()
-- (void)_textChanged:(id)sender;
-- (void)_keyboardWillShow:(NSNotification*)notification;
-- (void)_keyboardWillHide:(NSNotification*)notification;
-@end
-
-@implementation IASKAppSettingsViewController
-
-@synthesize delegate = _delegate;
-@synthesize currentIndexPath=_currentIndexPath;
-@synthesize settingsReader = _settingsReader;
-@synthesize file = _file;
-@synthesize currentFirstResponder = _currentFirstResponder;
-@synthesize showCreditsFooter = _showCreditsFooter;
-@synthesize showDoneButton = _showDoneButton;
-
-#pragma mark accessors
-- (IASKSettingsReader*)settingsReader {
- if (!_settingsReader) {
- _settingsReader = [[IASKSettingsReader alloc] initWithFile:self.file];
- }
- return _settingsReader;
-}
-
-- (NSString*)file {
- if (!_file) {
- return @"Root";
- }
- return [[_file retain] autorelease];
-}
-
-- (void)setFile:(NSString *)file {
- if (file != _file) {
- [_file release];
- _file = [file copy];
- }
-
- self.settingsReader = nil; // automatically initializes itself
-}
-
-#pragma mark standard view controller methods
-- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
- if ([super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
- // If set to YES, will display credits for InAppSettingsKit creators
- _showCreditsFooter = YES;
-
- // If set to YES, will add a DONE button at the right of the navigation bar
- _showDoneButton = NO;
- }
- return self;
-}
-
-- (void)awakeFromNib {
- // If set to YES, will display credits for InAppSettingsKit creators
- _showCreditsFooter = YES;
-
- // If set to YES, will add a DONE button at the right of the navigation bar
- // if loaded via NIB, it's likely we sit in a TabBar- or NavigationController
- // and thus don't need the Done button
- _showDoneButton = NO;
-}
-
-- (void)viewDidLoad {
- [super viewDidLoad];
-
- // Add views
- _viewList = [[NSMutableArray alloc] init];
- [_viewList addObject:[NSDictionary dictionaryWithObjectsAndKeys:@"IASKSpecifierValuesView", @"ViewName",nil]];
- [_viewList addObject:[NSDictionary dictionaryWithObjectsAndKeys:@"IASKAppSettingsView", @"ViewName",nil]];
-
-}
-
-- (void)viewDidUnload {
- // Release any retained subviews of the main view.
- // e.g. self.myOutlet = nil;
-}
-
-- (void)viewWillAppear:(BOOL)animated {
- if (_tableView) {
- [_tableView reloadData];
- _tableView.frame = self.view.bounds;
- }
-
- self.navigationItem.rightBarButtonItem = nil;
- self.navigationController.delegate = nil;
- if ([self.file isEqualToString:@"Root"]) {
- self.navigationController.delegate = self;
- if (_showDoneButton) {
- UIBarButtonItem *buttonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone
- target:self
- action:@selector(dismiss:)];
- self.navigationItem.rightBarButtonItem = buttonItem;
- [buttonItem release];
- }
- if (!self.title) {
- self.title = NSLocalizedString(@"Settings", @"");
- }
- }
- [super viewWillAppear:animated];
-}
-
-- (void)viewDidAppear:(BOOL)animated {
- [_tableView flashScrollIndicators];
-// _tableView.frame = self.view.bounds;
- [super viewDidAppear:animated];
-
- [[NSNotificationCenter defaultCenter] addObserver:self
- selector:@selector(_keyboardWillShow:)
- name:UIKeyboardWillShowNotification
- object:nil];
- [[NSNotificationCenter defaultCenter] addObserver:self
- selector:@selector(_keyboardWillHide:)
- name:UIKeyboardWillHideNotification
- object:nil];
-}
-
-- (void)viewWillDisappear:(BOOL)animated {
- [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil];
- if ([self.currentFirstResponder canResignFirstResponder]) {
- [self.currentFirstResponder resignFirstResponder];
- }
- [super viewWillDisappear:animated];
-}
-
-- (void)viewDidDisappear:(BOOL)animated {
- [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillHideNotification object:nil];
- [super viewDidDisappear:animated];
-}
-
-- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
- return (interfaceOrientation == UIInterfaceOrientationPortrait) || (interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown);
-}
-
-- (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.
-}
-
-- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated {
- if (![viewController isKindOfClass:[IASKAppSettingsViewController class]] && ![viewController isKindOfClass:[IASKSpecifierValuesViewController class]]) {
- [self dismiss:nil];
- }
-}
-
-- (void)dealloc {
- [[NSNotificationCenter defaultCenter] removeObserver:self];
- [_viewList release];
- [_currentIndexPath release];
- [_file release];
- _file = nil;
-
- [_currentFirstResponder release];
- _currentFirstResponder = nil;
-
- self.settingsReader = nil;
- _delegate = nil;
-
- [super dealloc];
-}
-
-
-#pragma mark -
-#pragma mark Actions
-
-- (IBAction)dismiss:(id)sender {
- if ([self.currentFirstResponder canResignFirstResponder]) {
- [self.currentFirstResponder resignFirstResponder];
- }
-
- self.navigationController.delegate = nil;
-
- if (self.delegate && [self.delegate conformsToProtocol:@protocol(IASKSettingsDelegate)]) {
- [self.delegate settingsViewControllerDidEnd:self];
- }
-}
-
-- (void)toggledValue:(id)sender {
- IASKSwitch *toggle = (IASKSwitch*)sender;
- IASKSpecifier *spec = [_settingsReader specifierForKey:[toggle key]];
-
- if ([toggle isOn]) {
- if ([spec trueValue] != nil) {
- [[NSUserDefaults standardUserDefaults] setObject:[spec trueValue] forKey:[toggle key]];
- }
- else {
- [[NSUserDefaults standardUserDefaults] setBool:YES forKey:[toggle key]];
- }
- }
- else {
- if ([spec falseValue] != nil) {
- [[NSUserDefaults standardUserDefaults] setObject:[spec falseValue] forKey:[toggle key]];
- }
- else {
- [[NSUserDefaults standardUserDefaults] setBool:NO forKey:[toggle key]];
- }
- }
- [[NSNotificationCenter defaultCenter] postNotificationName:kIASKAppSettingChanged object:[toggle key]];
-}
-
-- (void)sliderChangedValue:(id)sender {
- IASKSlider *slider = (IASKSlider*)sender;
- [[NSUserDefaults standardUserDefaults] setFloat:[slider value] forKey:[slider key]];
- [[NSNotificationCenter defaultCenter] postNotificationName:kIASKAppSettingChanged object:[slider key]];
-}
-
-
-#pragma mark -
-#pragma mark UITableView Functions
-
-- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
- return [self.settingsReader numberOfSections];
-}
-
-- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
- return [self.settingsReader numberOfRowsForSection:section];
-}
-
-- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
- return [self.settingsReader titleForSection:section];
-}
-
-- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section {
- if (!_showCreditsFooter || section != [self.settingsReader numberOfSections]-1) return nil;
-
- // Show the credits only in the last section's footer
- UILabel *credits = [[[UILabel alloc] initWithFrame:CGRectMake(0, 0, kIASKCreditsViewWidth, 0)] autorelease];
- [credits setOpaque:NO];
- [credits setNumberOfLines:0];
- [credits setFont:[UIFont systemFontOfSize:14.0f]];
- [credits setTextAlignment:UITextAlignmentRight];
- [credits setTextColor:[UIColor colorWithRed:77.0f/255.0f green:87.0f/255.0f blue:107.0f/255.0f alpha:1.0f]];
- [credits setShadowColor:[UIColor whiteColor]];
- [credits setShadowOffset:CGSizeMake(0, 1)];
- [credits setBackgroundColor:[UIColor clearColor]];
- [credits setText:kIASKCredits];
- [credits sizeToFit];
-
- UIView* view = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, kIASKCreditsViewWidth, credits.frame.size.height + 6 + 11)] autorelease];
- [view setBackgroundColor:[UIColor clearColor]];
-
- CGRect frame = credits.frame;
- frame.origin.y = 8;
- frame.origin.x = 16;
- frame.size.width = kIASKCreditsViewWidth;
- credits.frame = frame;
-
- [view addSubview:credits];
- [view sizeToFit];
-
- return view;
-}
-
-- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section {
- if (!_showCreditsFooter || section != [self.settingsReader numberOfSections]-1) return 0.0f;
-
- UIView* view = [self tableView:tableView viewForFooterInSection:section];
- if (view != nil) {
- return view.frame.size.height;
- }
- return -1;
-}
-
-- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
- IASKSpecifier *specifier = [self.settingsReader specifierForIndexPath:indexPath];
- NSString *key = [specifier key];
-
- if ([[specifier type] isEqualToString:kIASKPSToggleSwitchSpecifier]) {
- IASKPSToggleSwitchSpecifierViewCell *cell = (IASKPSToggleSwitchSpecifierViewCell*)[tableView dequeueReusableCellWithIdentifier:[specifier type]];
-
- if (!cell) {
- cell = (IASKPSToggleSwitchSpecifierViewCell*) [[[NSBundle mainBundle] loadNibNamed:@"IASKPSToggleSwitchSpecifierViewCell"
- owner:self
- options:nil] objectAtIndex:0];
- }
- [[cell label] setText:[specifier title]];
-
- id currentValue = [[NSUserDefaults standardUserDefaults] objectForKey:key];
- BOOL toggleState;
- if (currentValue) {
- if ([currentValue isEqual:[specifier trueValue]]) {
- toggleState = YES;
- } else if ([currentValue isEqual:[specifier falseValue]]) {
- toggleState = NO;
- } else {
- toggleState = [currentValue boolValue];
- }
- } else {
- toggleState = [specifier defaultBoolValue];
- }
- [[cell toggle] setOn:toggleState];
-
- [[cell toggle] addTarget:self action:@selector(toggledValue:) forControlEvents:UIControlEventValueChanged];
- [[cell toggle] setKey:key];
- return cell;
- }
- else if ([[specifier type] isEqualToString:kIASKPSMultiValueSpecifier]) {
- UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:[specifier type]];
-
- if (!cell) {
- cell = [[[IASKPSTitleValueSpecifierViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:[specifier type]] autorelease];
- cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
- }
- [[cell textLabel] setText:[specifier title]];
- [[cell detailTextLabel] setText:[[specifier titleForCurrentValue:[[NSUserDefaults standardUserDefaults] objectForKey:key] != nil ?
- [[NSUserDefaults standardUserDefaults] objectForKey:key] : [specifier defaultValue]] description]];
- return cell;
- }
- else if ([[specifier type] isEqualToString:kIASKPSTitleValueSpecifier]) {
- UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:[specifier type]];
-
- if (!cell) {
- cell = [[[IASKPSTitleValueSpecifierViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:[specifier type]] autorelease];
- cell.accessoryType = UITableViewCellAccessoryNone;
- }
-
- cell.textLabel.text = [specifier title];
- id value = [[NSUserDefaults standardUserDefaults] objectForKey:key] ? : [specifier defaultValue];
-
- NSString *stringValue;
- if ([specifier multipleValues] || [specifier multipleTitles]) {
- stringValue = [specifier titleForCurrentValue:value];
- } else {
- stringValue = [value description];
- }
-
- cell.detailTextLabel.text = stringValue;
- [cell setUserInteractionEnabled:NO];
-
- return cell;
- }
- else if ([[specifier type] isEqualToString:kIASKPSTextFieldSpecifier]) {
- IASKPSTextFieldSpecifierViewCell *cell = (IASKPSTextFieldSpecifierViewCell*)[tableView dequeueReusableCellWithIdentifier:[specifier type]];
-
- if (!cell) {
- cell = (IASKPSTextFieldSpecifierViewCell*) [[[NSBundle mainBundle] loadNibNamed:@"IASKPSTextFieldSpecifierViewCell"
- owner:self
- options:nil] objectAtIndex:0];
- cell.textField.textAlignment = UITextAlignmentLeft;
- cell.textField.returnKeyType = UIReturnKeyDone;
- cell.accessoryType = UITableViewCellAccessoryNone;
- }
- [[cell label] setText:[specifier title]];
- [[cell textField] setText:[[NSUserDefaults standardUserDefaults] objectForKey:key] != nil ?
- [[NSUserDefaults standardUserDefaults] objectForKey:key] : [specifier defaultStringValue]];
- [[cell textField] setKey:key];
- [[cell textField] setDelegate:self];
- [[cell textField] addTarget:self action:@selector(_textChanged:) forControlEvents:UIControlEventEditingChanged];
- [[cell textField] setSecureTextEntry:[specifier isSecure]];
- [[cell textField] setKeyboardType:[specifier keyboardType]];
- [[cell textField] setAutocapitalizationType:[specifier autocapitalizationType]];
- [[cell textField] setAutocorrectionType:[specifier autoCorrectionType]];
- [cell setNeedsLayout];
- return cell;
- }
- else if ([[specifier type] isEqualToString:kIASKPSSliderSpecifier]) {
- IASKPSSliderSpecifierViewCell *cell = (IASKPSSliderSpecifierViewCell*)[tableView dequeueReusableCellWithIdentifier:[specifier type]];
-
- if (!cell) {
- cell = (IASKPSSliderSpecifierViewCell*) [[[NSBundle mainBundle] loadNibNamed:@"IASKPSSliderSpecifierViewCell"
- owner:self
- options:nil] objectAtIndex:0];
- }
-
- if ([[specifier minimumValueImage] length] > 0) {
- [[cell minImage] setImage:[UIImage imageWithContentsOfFile:[_settingsReader pathForImageNamed:[specifier minimumValueImage]]]];
- }
-
- if ([[specifier maximumValueImage] length] > 0) {
- [[cell maxImage] setImage:[UIImage imageWithContentsOfFile:[_settingsReader pathForImageNamed:[specifier maximumValueImage]]]];
- }
-
- [[cell slider] setMinimumValue:[specifier minimumValue]];
- [[cell slider] setMaximumValue:[specifier maximumValue]];
- [[cell slider] setValue:[[NSUserDefaults standardUserDefaults] objectForKey:key] != nil ?
- [[[NSUserDefaults standardUserDefaults] objectForKey:key] floatValue] : [[specifier defaultValue] floatValue]];
- [[cell slider] addTarget:self action:@selector(sliderChangedValue:) forControlEvents:UIControlEventValueChanged];
- [[cell slider] setKey:key];
- [cell setNeedsLayout];
- return cell;
- }
- else if ([[specifier type] isEqualToString:kIASKPSChildPaneSpecifier]) {
- UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:[specifier type]];
-
- if (!cell) {
- cell = [[[IASKPSTitleValueSpecifierViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:[specifier type]] autorelease];
- [cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator];
- }
-
- [[cell textLabel] setText:[specifier title]];
- return cell;
- } else if ([[specifier type] isEqualToString:kIASKOpenURLSpecifier]) {
- UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:[specifier type]];
-
- if (!cell) {
- cell = [[[IASKPSTitleValueSpecifierViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:[specifier type]] autorelease];
- [cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator];
- }
-
- cell.textLabel.text = [specifier title];
- cell.detailTextLabel.text = [[specifier defaultValue] description];
- return cell;
- } else {
- UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:[specifier type]];
-
- if (!cell) {
- cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:[specifier type]] autorelease];
- }
- [[cell textLabel] setText:[specifier title]];
- return cell;
- }
-}
-
-- (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath {
- IASKSpecifier *specifier = [self.settingsReader specifierForIndexPath:indexPath];
-
- if ([[specifier type] isEqualToString:kIASKPSToggleSwitchSpecifier]) {
- return nil;
- } else {
- return indexPath;
- }
-}
-
-- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
- IASKSpecifier *specifier = [self.settingsReader specifierForIndexPath:indexPath];
-
- if ([[specifier type] isEqualToString:kIASKPSToggleSwitchSpecifier]) {
- [tableView deselectRowAtIndexPath:indexPath animated:NO];
- }
- else if ([[specifier type] isEqualToString:kIASKPSMultiValueSpecifier]) {
- IASKSpecifierValuesViewController *targetViewController = [[_viewList objectAtIndex:kIASKSpecifierValuesViewControllerIndex] objectForKey:@"viewController"];
-
- if (targetViewController == nil) {
- // the view controller has not been created yet, create it and set it to our viewList array
- // create a new dictionary with the new view controller
- NSMutableDictionary *newItemDict = [NSMutableDictionary dictionaryWithCapacity:3];
- [newItemDict addEntriesFromDictionary: [_viewList objectAtIndex:kIASKSpecifierValuesViewControllerIndex]]; // copy the title and explain strings
-
- targetViewController = [[IASKSpecifierValuesViewController alloc] initWithNibName:@"IASKSpecifierValuesView" bundle:nil];
-
- // add the new view controller to the dictionary and then to the 'viewList' array
- [newItemDict setObject:targetViewController forKey:@"viewController"];
- [_viewList replaceObjectAtIndex:kIASKSpecifierValuesViewControllerIndex withObject:newItemDict];
- [targetViewController release];
-
- // load the view controll back in to push it
- targetViewController = [[_viewList objectAtIndex:kIASKSpecifierValuesViewControllerIndex] objectForKey:@"viewController"];
- }
- _currentIndexPath = indexPath;
- [targetViewController setCurrentSpecifier:specifier];
- targetViewController.settingsReader = self.settingsReader;
- [[self navigationController] pushViewController:targetViewController animated:YES];
- }
- else if ([[specifier type] isEqualToString:kIASKPSSliderSpecifier]) {
- [tableView deselectRowAtIndexPath:indexPath animated:NO];
- }
- else if ([[specifier type] isEqualToString:kIASKPSTextFieldSpecifier]) {
- IASKPSTextFieldSpecifierViewCell *textFieldCell = (id)[tableView cellForRowAtIndexPath:indexPath];
- [textFieldCell.textField becomeFirstResponder];
- }
- else if ([[specifier type] isEqualToString:kIASKPSChildPaneSpecifier]) {
- IASKAppSettingsViewController *targetViewController = [[_viewList objectAtIndex:kIASKSpecifierChildViewControllerIndex] objectForKey:@"viewController"];
-
- if (targetViewController == nil) {
- // the view controller has not been created yet, create it and set it to our viewList array
- // create a new dictionary with the new view controller
- NSMutableDictionary *newItemDict = [NSMutableDictionary dictionaryWithCapacity:3];
- [newItemDict addEntriesFromDictionary: [_viewList objectAtIndex:kIASKSpecifierChildViewControllerIndex]]; // copy the title and explain strings
-
- targetViewController = [[[self class] alloc] initWithNibName:@"IASKAppSettingsView" bundle:nil];
-
- // add the new view controller to the dictionary and then to the 'viewList' array
- [newItemDict setObject:targetViewController forKey:@"viewController"];
- [_viewList replaceObjectAtIndex:kIASKSpecifierChildViewControllerIndex withObject:newItemDict];
- [targetViewController release];
-
- // load the view controll back in to push it
- targetViewController = [[_viewList objectAtIndex:kIASKSpecifierChildViewControllerIndex] objectForKey:@"viewController"];
- }
- _currentIndexPath = indexPath;
- targetViewController.file = specifier.file;
- targetViewController.title = specifier.title;
- targetViewController.showCreditsFooter = NO;
- [[self navigationController] pushViewController:targetViewController animated:YES];
- } else if ([[specifier type] isEqualToString:kIASKOpenURLSpecifier]) {
- [tableView deselectRowAtIndexPath:indexPath animated:YES];
- [[UIApplication sharedApplication] openURL:[NSURL URLWithString:specifier.file]];
- } else {
- [tableView deselectRowAtIndexPath:indexPath animated:NO];
- }
-}
-
-
-#pragma mark -
-#pragma mark UITextFieldDelegate Functions
-
-- (void)_textChanged:(id)sender {
- IASKTextField *text = (IASKTextField*)sender;
- [[NSUserDefaults standardUserDefaults] setObject:[text text] forKey:[text key]];
- [[NSNotificationCenter defaultCenter] postNotificationName:kIASKAppSettingChanged object:[text key]];
-}
-
-- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
- [textField setTextAlignment:UITextAlignmentLeft];
- self.currentFirstResponder = textField;
- return YES;
-}
-
-- (void)textFieldDidBeginEditing:(UITextField *)textField {
- if ([_tableView indexPathsForVisibleRows].count) {
- _topmostRowBeforeKeyboardWasShown = (NSIndexPath*)[[_tableView indexPathsForVisibleRows] objectAtIndex:0];
- } else {
- // this should never happen
- _topmostRowBeforeKeyboardWasShown = [NSIndexPath indexPathForRow:0 inSection:0];
- [textField resignFirstResponder];
- }
-}
-
-- (void)textFieldDidEndEditing:(UITextField *)textField {
- self.currentFirstResponder = nil;
-}
-
-- (BOOL)textFieldShouldReturn:(UITextField *)textField{
- [textField resignFirstResponder];
- return YES;
-}
-
-#pragma mark Keyboard Management
-- (void)_keyboardWillShow:(NSNotification*)notification {
- if (self.navigationController.topViewController == self) {
- NSDictionary* userInfo = [notification userInfo];
-
- // we don't use SDK constants here to be universally compatible with all SDKs ≥ 3.0
- NSValue* keyboardFrameValue = [userInfo objectForKey:@"UIKeyboardBoundsUserInfoKey"];
- if (!keyboardFrameValue) {
- keyboardFrameValue = [userInfo objectForKey:@"UIKeyboardFrameEndUserInfoKey"];
- }
-
- // Reduce the tableView height by the part of the keyboard that actually covers the tableView
- CGRect windowRect = [[UIApplication sharedApplication] keyWindow].bounds;
- CGRect viewRectAbsolute = [_tableView convertRect:_tableView.bounds toView:[[UIApplication sharedApplication] keyWindow]];
- CGRect frame = _tableView.frame;
- frame.size.height -= [keyboardFrameValue CGRectValue].size.height - CGRectGetMaxY(windowRect) + CGRectGetMaxY(viewRectAbsolute);
-
- [UIView beginAnimations:nil context:NULL];
- [UIView setAnimationDuration:[[userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue]];
- [UIView setAnimationCurve:[[userInfo objectForKey:UIKeyboardAnimationCurveUserInfoKey] intValue]];
- _tableView.frame = frame;
- [UIView commitAnimations];
-
- UITableViewCell *textFieldCell = (id)((UITextField *)self.currentFirstResponder).superview.superview;
- NSIndexPath *textFieldIndexPath = [_tableView indexPathForCell:textFieldCell];
-
- // iOS 3 sends hide and show notifications right after each other
- // when switching between textFields, so cancel -scrollToOldPosition requests
- [NSObject cancelPreviousPerformRequestsWithTarget:self];
-
- [_tableView scrollToRowAtIndexPath:textFieldIndexPath atScrollPosition:UITableViewScrollPositionMiddle animated:YES];
- }
-}
-
-- (void) scrollToOldPosition {
- [_tableView scrollToRowAtIndexPath:_topmostRowBeforeKeyboardWasShown atScrollPosition:UITableViewScrollPositionTop animated:YES];
-}
-
-- (void)_keyboardWillHide:(NSNotification*)notification {
- if (self.navigationController.topViewController == self) {
- NSDictionary* userInfo = [notification userInfo];
-
- [UIView beginAnimations:nil context:NULL];
- [UIView setAnimationDuration:[[userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue]];
- [UIView setAnimationCurve:[[userInfo objectForKey:UIKeyboardAnimationCurveUserInfoKey] intValue]];
- _tableView.frame = self.view.bounds;
- [UIView commitAnimations];
-
- [self performSelector:@selector(scrollToOldPosition) withObject:nil afterDelay:0.1];
- }
-}
-@end
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