I am trying to apply UITapGestureRecognizer on a UILabel in order to check and open e-mail service. The current UIView is a part of a UIViewController and displayed once user tap on a button.
#import <UIKit/UIKit.h>
#import <MessageUI/MessageUI.h>
#class AddressBook;
#interface ContactInfoUI : UIView <MFMailComposeViewControllerDelegate, UIGestureRecognizerDelegate>{
IBOutlet UIView *view;
UIViewController *mContainerVc;
AddressBook *mAddressBook;
}
#property (nonatomic, retain)UIView *view;
#property (nonatomic, retain)UIViewController *mContainerVc;
#property (nonatomic, retain)AddressBook *mAddressBook;
-(void)addContactInformationFrom:(AddressBook *)addressBook;
#end
.m
#implementation ContactInfoUI
#synthesize view;
#synthesize mContainerVc;
#synthesize mAddressBook;
- (id)init {
self = [super init];
if (self) {
[[NSBundle mainBundle] loadNibNamed:#"ContactInfoView" owner:self options:nil];
self.userInteractionEnabled = YES;
[self addSubview:[self view]];
}
return self;
}
-(void)addContactInformationFrom:(AddressBook *)addressBook{
self.mAddressBook = addressBook;
int y = 20;
CGRect rect = CGRectMake(20, y, 320, 60);
if (![mAddressBook.aEmail isEqualToString:#"-"]) {
UILabel *email = [[UILabel alloc] initWithFrame:rect];
UITapGestureRecognizer *tgr = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(showEmailForm:)];
tgr.delegate = self;
tgr.numberOfTapsRequired = 1;
[email addGestureRecognizer:tgr];
email.userInteractionEnabled = YES;
email.text = mAddressBook.aEmail;
[self addSubview:email];
rect.origin.y += 40;
}
}
-(IBAction)showEmailForm:(id)sender{
// Email Subject
NSString *emailTitle = #"Test Email";
// Email Content
NSString *messageBody = #"Some message";
// To address
NSArray *toRecipents = [NSArray arrayWithObject:#"test#apple.com"];
MFMailComposeViewController *mc = [[MFMailComposeViewController alloc] init];
mc.mailComposeDelegate = self;
[mc setSubject:emailTitle];
[mc setMessageBody:messageBody isHTML:NO];
[mc setToRecipients:toRecipents];
[mContainerVc presentViewController:mc animated:YES completion:NULL];
}
#end
VC.h (part)
#class ContactInfoUI;
#class ElementObject;
#interface ElementDetailsViewController : UIViewController{
ElementObject *element;
IBOutlet ContactInfoUI *infoView;
}
#property(nonatomic, retain) ContactInfoUI *infoView;
- (IBAction)showInfo:(id)sender;
#end
VC.m (part)
- (IBAction)showInfo:(id)sender {
if (infoView == nil) {
infoView = [[ContactInfoUI alloc] init];
infoView.userInteractionEnabled = YES;
infoView.mContainerVc = self;
}
AddressBook *ab = element.getElementAddressBook;
[infoView addContactInformationFrom:ab];
[self.view addSubview:infoView];
infoBtn.selected = YES;
sumBtn.selected = NO;
mapBtn.selected = NO;
infoView.hidden = NO;
staticMapScrView.hidden = YES;
summaryView.hidden = YES;
}
The problem is that, even if I can see the actual UILabel on screen, I can't tap on it and the email function never fired.
I'm glad you figured it. Yeah, if a UI element is smaller than any of the its superviews (all the way up the chain), all UI interaction to that element will be blocked. This goes for labels, buttons, etc..
Related
In my viewcontroller like this:
#import "PPSharedView.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
PPSharedView * sharedView = [[PPSharedView alloc] init];
sharedView.topImageName = #"fenxiangdao";
[sharedView sharedWithArrayImage:#[#"weixin_um",#"weixin_um",#"weixin_um",] titles:#[#"微信好友",#"微信好友",#"微信好友",]];
}
#end
In PPSharedView.h like this:
#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
#interface PPSharedView : UIView
-(void)sharedWithArrayImage:(nonnull NSArray *)arrImgs
titles:(nonnull NSArray *)arrTitles;
#end
In PPSharedView.m on the below:
-(void)sharedWithArrayImage:(NSArray *)arrImgs titles:(NSArray *)arrTitles{
if (arrImgs.count != arrTitles.count) return;
UIWindow * keyWindow = [UIApplication sharedApplication].keyWindow;
UIView * backView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, kSCREEN_W, kSCREEN_H)];
[keyWindow addSubview:backView];
backView.backgroundColor = [UIColor blackColor];
backView.alpha = 0.5;
UITapGestureRecognizer * tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(clickRedview)];
backView.userInteractionEnabled = YES;
[backView addGestureRecognizer:tap];
}
-(void)clickRedview{
NSLog(#"adf");
}
When I run the app on the iPhone the backView on the screen but can't response click events.Anyone knows what's wrong with the code?Thank you very much!
In controller the sharedView should be referenced example:
#interface ViewController ()
#property(nonatomic, strong) PPSharedView * ppView;
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
PPSharedView * sharedView = [[PPSharedView alloc] init];
self.ppView = sharedView;
sharedView.topImageName = #"fenxiangdao";
[sharedView sharedWithArrayImage:#[#"weixin_um",#"weixin_um",#"weixin_um",] titles:#[#"微信好友",#"微信好友",#"微信好友",]];
}
#end
If don't do this the sharedView will be destoryed!
I created a NavigationBar and added it to the UIViewController. But after init, the reference turns to nil. I'm new to iOS and OC, I don't know why. Anyone can help? Thank you.
code summary:
#interface ContainerViewController()
#property (nonatomic, retain) UINavigationBar *nav;
#property (nonatomic, retain) UINavigationItem *navItem;
#end
#implementation ContainerViewController
- (instancetype) initWithParams:(NSDictionary *)params {
self = [super init];
if (self) {//...}
return self;
}
- setNavTitle:(NSDictionary *) params {
NSString *title = params[#"title"];
/////////////////////////////////
// here goes wrong
// self.navItem == nil here, why?
/////////////////////////////////
self.navItem.title = title;
}
- (void) viewWillAppear:(Bool)animated {
[super viewWillAppear:NO];
static float navHeight = 64.0;
UIViewController *wvController = [WebView init here];
UINavigationBar *nav = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, 0, CGRectGetWidth(self.view.bounds), navHeight)];
UINavigationItem *navItem = [[UINavigationItem alloc] initWithTitle:title];
nav.items = [NSArray arrayWithObjects: navItem, nil];
///////////////////////////////
// I saved the reference here
//////////////////////////////
[self setNav:nav];
[self setNavItem:navItem];
[self.view addSubview:nav];
[self addChildViewController:wvController];
wvController.view.bounds = CGRectMake(0, 0, CGRectGetWidth(self.view.bounds), CGRectGetHeight(self.view.bounds) - navHeight);
[self.view addSubview:wvController.view];
[wvController didMoveToParentViewController:self];
}
#end
This will be useful for you, kindly check and do
Tutorial point site is very easy to learn some important UI basics if you are working in Objective C
I'm using a contact picker to grab a string, then pass that string to another view controller, however the UILabel is not updating with the data (or any other string).
In the SlingViewController.m logs below, _taggedFriendsNames is being passed successfully.
Perhaps the issue is because the receiving view controller is trying to update the label on another (SlingshotView) view? I don't think that's the case as I've been updating labels in this way in other methods.
The answer is likely related to updating UILabels in general, but I've had no luck after searching.
Things I've checked with no success:
Updating from the main thread asynchronously
#synthesize the label in SlingshotView
calling setDisplay
Included potentially relevant code below. Thanks in advance for any tips!
SlingViewController.m
-(void)updateFriendsPickedLabel:(id)sender {
NSLog(#"updateFriendsPickedLabel: %#", _taggedFriendsNames); // i see this
slingshotView.friendsPickedLabel.text = #"any string"; // i don't see this
}
SlingViewController.h
#class TBMultiselectController;
#class SlingshotView;
#interface SlingViewController : UIViewController
#property (nonatomic, readonly) SlingshotView *slingshotView;
#property(nonatomic) NSString *taggedFriendsNames;
//for friend picker
-(void)updateFriendsPickedLabel:(id)sender;
#end
MultiSelectViewController.m
- (IBAction) sendButton: (id) sender {
NSMutableString *myString = [[NSMutableString alloc]initWithString:#""];
for (int i=0; i < self.selectedContacts.count; i++) {
Contact *myContact = self.selectedContacts[i];
[myString appendString:[NSString stringWithFormat:#"%# %# ", myContact.firstName, myContact.lastName]];
}
SlingViewController *svc = [[SlingViewController alloc] init];
svc.taggedFriendsNames = myString;
[svc updateFriendsPickedLabel:self];
[self.navigationController dismissViewControllerAnimated:YES completion:nil];
}
MultiSelectViewController.h
#protocol TBMultiselectControllerDelegate;
#class SlingViewController;
#interface TBMultiselectController : UIViewController <UITableViewDataSource, UITableViewDelegate, UISearchDisplayDelegate, TBContactsGrabberDelegate>
#property (nonatomic, assign) id<TBMultiselectControllerDelegate> delegate;
- (IBAction)sendButton: (id) sender;
#end
#protocol TBMultiselectControllerDelegate <NSObject>
-(void)updateFriendsPickedLabel:(id)sender;
#end
SlingshotView.h
#property (strong, nonatomic) UILabel *friendsPickedLabel;
SlingshotView.m
#synthesize friendsPickedLabel;
...
- (id)initWithFrame:(CGRect)frame {
if ((self = [super initWithFrame:frame])) {
CGRect screenRect = [[UIScreen mainScreen] bounds];
CGRect imageFrame = CGRectMake(0, 0, screenRect.size.width, screenRect.size.height);
contentView = [[UIView alloc] initWithFrame:frame];
[contentView setBackgroundColor:[UIColor whiteColor]];
[contentView setAutoresizingMask:UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight];
[self addSubview:contentView];
self.friendsPickedLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, screenRect.size.height/2-100, screenRect.size.width-20, 200)];
self.friendsPickedLabel.shadowColor = [UIColor darkGrayColor];
self.friendsPickedLabel.numberOfLines = 0;
self.friendsPickedLabel.shadowOffset = CGSizeMake(0.5, 0.5);
self.friendsPickedLabel.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.0];
[self.friendsPickedLabel setTextAlignment:NSTextAlignmentLeft];
self.friendsPickedLabel.textColor = [UIColor whiteColor];
self.friendsPickedLabel.font = [UIFont fontWithName:#"HelveticaNeue-Bold" size:24];
[contentView addSubview:self.friendsPickedLabel];
You are reallocating this..
SlingViewController *svc = [[SlingViewController alloc] init];
svc.taggedFriendsNames = myString;
[svc updateFriendsPickedLabel:self];
Meaning your
slingshotView.friendsPickedLabel becomes nil..
And you are calling/using the delegate the wrong way, i think it suppose to be
[self.delegate updateFriendsPickedLabel:#"YourData To be Passed"];
From your code you are using the -(void)updateFriendsPickedLabel:(id)sender; inside SlingViewController and not the delegate, you are not implementing the delegate either..
Yes the -(void)updateFriendsPickedLabel:(id)sender; method is called, bacause you are calling it directly from the class..
SlingViewController.h
#interface SlingViewController : UIViewController < TBMultiselectControllerDelegate > // for delegate implementation
#property (nonatomic, readonly) SlingshotView *slingshotView;
#property(nonatomic) NSString *taggedFriendsNames;
//for friend picker
//-(void)updateFriendsPickedLabel:(id)sender;
#end
MultiSelectViewController.m
- (IBAction) sendButton: (id) sender {
NSMutableString *myString = [[NSMutableString alloc]initWithString:#""];
for (int i=0; i < self.selectedContacts.count; i++) {
Contact *myContact = self.selectedContacts[i];
[myString appendString:[NSString stringWithFormat:#"%# %# ", myContact.firstName, myContact.lastName]];
}
/*
SlingViewController *svc = [[SlingViewController alloc] init];
svc.taggedFriendsNames = myString;
[svc updateFriendsPickedLabel:self];
*/
[self.delegate updateFriendsPickedLabel:#"YourString"];
// this will call the method in your implementation class
[self.navigationController dismissViewControllerAnimated:YES completion:nil];
}
Hmm.. I Think you have implemented the delegates the wrong way.
This is suppose to be a comment but its too long..
I am trying to call another method with Delegate and protocols in my app. I need to send the variable "myData" to another view but for some reasons it doesn't works. I don't know what I am doing wrong with the implementation of delegates and protocols. The delegate never call the action of the protocol.
Sorry I'm new with this.
BLEViewController.h
#import <UIKit/UIKit.h>
#import "BLE.h"
#protocol EnviarDatos <NSObject>
//Metodo que se manda llamar pero se implementa en otra clase
-(void) actualizaDatos:(NSData*)Data;
#end
#interface BLEViewController : UITableViewController <BLEDelegate>
{
//id <EnviarDatos> delegate;
}
#property (nonatomic,assign)id delegate;
#property (nonatomic, retain) NSData *myData;
+ (BLE*) theBLEObject;
- (void) scanForPeripherals;
- (IBAction)connect:(id)sender;
-(void) activaProtocolo;
#end
BLEViewController.m
//
// BLEViewController.m
// DL_RemoteBLE_02
//
// Created by Dave Lichtenstein on 3/16/14.
// Copyright (c) 2014 Dave Lichtenstein. All rights reserved.
//
#import "BLEViewController.h"
static BLE* ble;
static UILabel *statusLabel;
static NSString* connectionStatus = #"Not connected!";
#interface BLEViewController ()
#end
#implementation BLEViewController
#synthesize delegate;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
if(ble==nil)
{
// Create our Bluetooth Low Energy object
//
ble = [[BLE alloc] init];
[ble controlSetup];
ble.delegate = self;
}
// Create a toolbar at the bottom of the screen to show status text, etc.
//
// get screen size
//
CGRect screenRect = [[UIScreen mainScreen] bounds];
CGFloat screenWidth = screenRect.size.width;
CGFloat screenHeight = screenRect.size.height;
CGFloat toolbarHeight = 50.0;
CGFloat labelHeight = 50.0;
if(statusLabel==nil) // only create once
{
// create our status label object
//
statusLabel = [[UILabel alloc] initWithFrame:CGRectMake(5, screenHeight-toolbarHeight-labelHeight, screenWidth, labelHeight)];
statusLabel.backgroundColor = [UIColor clearColor];
statusLabel.textColor = [UIColor blackColor];
statusLabel.font = [UIFont boldSystemFontOfSize:15];
statusLabel.text = #"Connection Status:";
}
// create a toolbar
//
UIToolbar *toolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0,screenHeight-toolbarHeight,screenWidth,toolbarHeight)];
toolbar.tintColor = [UIColor blackColor];
/*UILabel* label = [[UILabel alloc] initWithFrame:CGRectMake(5, 5, 150, 20)];
label.backgroundColor = [UIColor clearColor];
label.textColor = [UIColor blackColor];
label.font = [UIFont boldSystemFontOfSize:15];
label.text = #"Status:";
UIBarButtonItem *labeltext = [[UIBarButtonItem alloc] initWithCustomView:label];
UIBarButtonItem *button = [[UIBarButtonItem alloc]initWithTitle:#"" style:UIBarButtonItemStyleDone target:self action:nil];
NSArray *items = [NSArray arrayWithObjects:statusLabel, nil];
toolbar.items = items;
*/
[self.view addSubview:statusLabel];
[self.view addSubview:toolbar];
// Update our status label
statusLabel.text = connectionStatus;
_myData = [[NSData alloc]init];
delegate = self;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
//-------------------------------------------------------
// methods
/////////////////////////////////////////////////////////
+ (BLE*) theBLEObject
{
return ble;
}
-(void) connectionTimer:(NSTimer *)timer
{
if (ble.peripherals.count > 0)
{
[ble connectPeripheral:[ble.peripherals objectAtIndex:0]];
}
NSLog(#"connectionTimer"); // diag
}
// We call this when the view loads to try to connect to our bluetooth perepheral
//
- (void) scanForPeripherals
{
if (ble.activePeripheral)
if(ble.activePeripheral.state == CBPeripheralStateConnected)
{
statusLabel.text = #"Disconnectng from peripheral...";
[[ble CM] cancelPeripheralConnection:[ble activePeripheral]];
return;
}
if (ble.peripherals)
ble.peripherals = nil;
NSLog(#"scanning...");
statusLabel.text = #"Scanning for peripherals...";
[ble findBLEPeripherals:2];
[NSTimer scheduledTimerWithTimeInterval:(float)2.0 target:self selector:#selector(connectionTimer:) userInfo:nil repeats:NO];
//[indConnecting startAnimating];
}
- (IBAction)connect:(id)sender {
[self scanForPeripherals];
}
///////////////////////////////////////////////////////////
#pragma mark - BLE delegate
///////////////////////////////////////////////////////////
NSTimer *rssiTimer;
// When Connected, this will be called
-(void) bleDidConnect
{
NSLog(#"->Connected");
statusLabel.text = #"Connected!";
connectionStatus = #"Connected!";
// Schedule to read RSSI every 1 sec.
rssiTimer = [NSTimer scheduledTimerWithTimeInterval:(float)1.0 target:self selector:#selector(readRSSITimer:) userInfo:nil repeats:YES];
}
// When RSSI is changed, this will be called
-(void) bleDidUpdateRSSI:(NSNumber *) rssi
{
// Append the rssi value to our status label
//
NSString *temp = [NSString stringWithFormat:#"%# (%#)", connectionStatus, rssi];
statusLabel.text = temp;
}
-(void) readRSSITimer:(NSTimer *)timer
{
[ble readRSSI];
}
// When data is comming, this will be called
-(void) bleDidReceiveData:(unsigned char *)data length:(int)length
{
NSData *d = [NSData dataWithBytes:data length:length];
_myData = [NSData dataWithBytes:data length:length];
NSString *s = [[NSString alloc] initWithData:d encoding:NSUTF8StringEncoding];
NSLog(#"Datos en String %#",s);
//_datosdelegate = self;
//Is anyone listening
if([delegate respondsToSelector:#selector(actualizaDatos:)])
{
//send the delegate function with the amount entered by the user
[delegate actualizaDatos:_myData];
NSLog(#"Entro delegado");
}
}
- (void)bleDidDisconnect
{
NSLog(#"->Disconnected");
connectionStatus = #"Disconnected!";
statusLabel.text = #"Disconnected!";
[rssiTimer invalidate];
}
#end
sevenSegmentsViewController.h
#import <UIKit/UIKit.h>
#import "BLEViewController.h"
#import "BLE.h"
#interface sevenSegmentsViewController : UIViewController<EnviarDatos>{
UIImage *unoON;
UIImage *dosON;
UIImage *tresON;
UIImage *cuatroON;
UIImage *cincoON;
UIImage *seisON;
UIImage *sieteON;
UIImage *unoOFF;
UIImage *dosOFF;
UIImage *tresOFF;
UIImage *cuatroOFF;
UIImage *cincoOFF;
UIImage *seisOFF;
UIImage *sieteOFF;
}
#property (strong, nonatomic) IBOutlet UIImageView *uno;
#property (strong, nonatomic) IBOutlet UIImageView *dos;
#property (strong, nonatomic) IBOutlet UIImageView *tres;
#property (strong, nonatomic) IBOutlet UIImageView *cuatro;
#property (strong, nonatomic) IBOutlet UIImageView *cinco;
#property (strong, nonatomic) IBOutlet UIImageView *seis;
#property (strong, nonatomic) IBOutlet UIImageView *siete;
#end
sevenSegmentsViewController.m
//
// sevenSegmentsViewController.m
// iShield
//
// Created by Victor Carreño on 29/03/14.
// Copyright (c) 2014 RedBearLab. All rights reserved.
//
#import "sevenSegmentsViewController.h"
#interface sevenSegmentsViewController ()
#end
#implementation sevenSegmentsViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
unoOFF = [UIImage imageNamed:#"7segnh.png"];
dosOFF = [UIImage imageNamed:#"7segnv.png"];
tresOFF = [UIImage imageNamed:#"7segnv.png"];
cuatroOFF =[UIImage imageNamed:#"7segnh.png"];
cincoOFF = [UIImage imageNamed:#"7segnh.png"];
seisOFF = [UIImage imageNamed:#"7segnv.png"];
sieteOFF = [UIImage imageNamed:#"7segnh.png"];
unoON = [UIImage imageNamed:#"7segvh.png"];
dosON = [UIImage imageNamed:#"7segvv.png"];
tresON = [UIImage imageNamed:#"7segvv.png"];
cuatroON =[UIImage imageNamed:#"7segvh.png"];
cincoON = [UIImage imageNamed:#"7segvh.png"];
seisON = [UIImage imageNamed:#"7segvv.png"];
sieteON = [UIImage imageNamed:#"7segvh.png"];
_uno = [[UIImageView alloc]initWithImage:unoOFF];
_dos = [[UIImageView alloc]initWithImage:dosOFF];
_tres = [[UIImageView alloc]initWithImage:tresOFF];
_cuatro = [[UIImageView alloc]initWithImage:cuatroOFF];
_cinco = [[UIImageView alloc]initWithImage:cincoOFF];
_seis = [[UIImageView alloc]initWithImage:seisOFF];
_siete = [[UIImageView alloc]initWithImage:sieteOFF];
//BLEViewController *myBLE = [[BLEViewController alloc]init];
//BLE *myBLE = [BLEViewController theBLEObject];
//NSLog(#"%#", myBLE.myData);
BLEViewController *myBLE = [[BLEViewController alloc]init];
myBLE.delegate = self;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
#pragma mark Delegado de Actualizar datos
-(void) actualizaDatos :(NSData *)myData{
NSLog(#"Datos recividos");
NSLog(#"Imprimio mi data con exitos %#", myData);
}
#end
In a nutshell, your BLEViewController is setting its delegate property to "self" when I think you want it to get set to an instance of "sevenSegmentsViewController". As a result the "if([delegate respondsToSelector:..." test is failing and you are never hitting the call to actualizaDatos. If you are using protocols correctly, you don't really need to test for "respondsToSelector" because by definition, the delegate must support the protocol.
The compiler and IDE are not showing you the error because you declared the property of the BLEViewController as just type "id" instead of
id<EnviarDatos>
If you fix the property declaration to say that your delegate must support the right protocol, you'll immediately see the errors highlighted.
I have a table view controller with custom derived cells. When somebody clicks a button in the cell (the editButton below), I want to load a different view controller to display a pop up dialog.
I created a xib and view controller, and loaded the new VC that way, but everything in the new VC object was nil, and the new VC didn't appear.
I then tried programaticaly creating the view, using the initWithDefaultText:origin: initializer, but it still doesn't appear, but the member widgets are now valid.
Am I missing something?
MyListTableViewCell.h
#interface MyListTableViewCell : UITableViewCell <MyEditQueryDelegate>
...
MyListTableViewCell.m
#implementation MyListTableViewCell
+ (MyListTableViewCell *)loadFromNibWithItem:(MyListItem *)item
expandHandler:(MyItemExpandHandler)handler
controller:(MyListViewController*)controller
{
MyListTableViewCell *cell = [[[NSBundle mainBundle]
loadNibNamed:#"MyListTableViewCell" owner:self options:nil] objectAtIndex:0];
cell.item = item;
cell.expandHandler = handler;
cell.queryLabel.text = item.displayText;
[cell hideOptions];
[cell.editButton addTarget: cell action: #selector(editButtonTapped:)
forControlEvents: UIControlEventTouchUpInside];
return cell;
}
- (void) editButtonTapped: (UIButton*) sender
{
CGPoint globalOrigin = [self.superview convertPoint:self.frame.origin toView:nil];
NSLog(#"editButtonTapped Point (%f, %f).", globalOrigin.x, globalOrigin.y);
// This log message appears.
// MyEditQueryViewController* vc = [[MyEditQueryViewController alloc]
// initWithNibName:#"MyEditQueryView" bundle:nil];
// This resulted in a nil view in the vc and no visual change.
MyEditQueryViewController* vc = [[MyEditQueryViewController alloc]
initWithDefaultText:[self.queryLabel text] orign:globalOrigin];
vc.delegate = self;
[_controller presentViewController: vc animated: YES completion: nil];
// vc should appear here????
}
MyEditQueryViewController.h
#import <UIKit/UIKit.h>
#import "MyEditQueryDelegate.h"
#interface MyEditQueryViewController : UIViewController
#property (nonatomic, strong) id<MyEditQueryDelegate> delegate;
#property (nonatomic, strong) IBOutlet UITextField* textField;
#property (nonatomic, strong) IBOutlet UIView* editView;
#property (nonatomic, strong) IBOutlet UIButton* cancelButton;
#property (nonatomic, strong) IBOutlet UIButton* saveButton;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil;
- (id)initWithDefaultText:(NSString*)defaultText orign:(CGPoint)origin;
- (IBAction)cancelTapped:(id)sender;
- (IBAction)saveTapped:(id)sender;
#end
MyEditQueryViewController.m
#implementation MyEditQueryViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
NSLog(#"initWithNibName:bundle:");
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self)
{
}
return self;
}
- (id)initWithDefaultText:(NSString*)defaultText orign:(CGPoint)origin
{
NSLog(#"initWithDefaultText:origin:");
self = [super initWithNibName: nil bundle:nil];
if (self)
{
CGRect screenRect = [[UIScreen mainScreen] bounds];
self.view = [[UIView alloc] initWithFrame:screenRect];
UIImage* smokeGlass = [UIImage imageNamed:#"SmokeGlass.png"];
UIImageView* background = [[UIImageView alloc] initWithImage:smokeGlass];
[self.view addSubview:background];
CGRect editViewFrame = CGRectMake(0.0, origin.y, screenRect.size.width, 122.0);
_editView = [[UIView alloc] initWithFrame:editViewFrame];
[self.view addSubview: _editView];
CGRect textViewFrame = CGRectMake(20.0, 20.0, 280.0, 30.0);
_textField = [[UITextField alloc] initWithFrame: textViewFrame];
_textField.text = defaultText;
[_editView addSubview: _textField];
CGRect cancelButtonFrame = CGRectMake(20.0, 72.0, 50.0, 30.0);
_cancelButton = [[UIButton alloc] initWithFrame:cancelButtonFrame];
_cancelButton.titleLabel.text = #"Cancel";
[_cancelButton addTarget:self action:#selector(cancelTapped:)
forControlEvents:UIControlEventTouchUpInside];
[_editView addSubview: _cancelButton];
CGRect saveButtonFrame = CGRectMake(266.0, 72.0, 34.0, 30.0);
_saveButton = [[UIButton alloc] initWithFrame:saveButtonFrame];
_saveButton.titleLabel.text = #"Save";
[_saveButton addTarget:self action:#selector(saveTapped:)
forControlEvents:UIControlEventTouchUpInside];
[_editView addSubview: _saveButton];
}
return self;
}