From e6a4c8a4f6eb570f77412b016ac5f64e105da2e3 Mon Sep 17 00:00:00 2001
From: MSec <mike_secco@hotmail.com>
Date: Thu, 10 Oct 2013 22:10:17 +1100
Subject: [PATCH] Added capability for additional text fields to be added to
 AlertViews

Added code to be able to handle multiple textfields in an alertview
simply by passing in placeholders for the desired textfields.
Placeholders should be blank (@"") if no placeholder is required.

An outlet has also been provided to be able to access the value in the
textfields from the block for the Done button.

There were a number of left over methods after these changes which I
could not see a use for, so I have removed them to avoid clutter /
unneccesary complexity
---
 .DS_Store                                     | Bin 0 -> 6148 bytes
 .../BlockAlertsDemoViewController.m           |  16 ++-
 .../BlockTextPromptAlertView.h                |  11 +-
 .../BlockTextPromptAlertView.m                | 117 ++++++++++--------
 4 files changed, 84 insertions(+), 60 deletions(-)
 create mode 100644 .DS_Store

diff --git a/.DS_Store b/.DS_Store
new file mode 100644
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GIT binary patch
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literal 0
HcmV?d00001

diff --git a/BlockAlertsDemo/BlockAlertsDemoViewController.m b/BlockAlertsDemo/BlockAlertsDemoViewController.m
index f7fd47e..f67b7d0 100644
--- a/BlockAlertsDemo/BlockAlertsDemoViewController.m
+++ b/BlockAlertsDemo/BlockAlertsDemoViewController.m
@@ -72,7 +72,7 @@ - (IBAction)showActionSheetPlusAlert:(id)sender
 - (IBAction)goNuts:(id)sender
 {
     for (int i=0; i<6; i++)
-     {
+    {
         dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, 0.5 * i * NSEC_PER_SEC);
         dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
             if (arc4random() % 2 == 0)
@@ -80,13 +80,14 @@ - (IBAction)goNuts:(id)sender
             else
                 [self showActionSheet:nil];
         });
-     }
+    }
 }
 
 - (IBAction)showTextPrompt:(id)sender
 {
-    UITextField *textField;
-    BlockTextPromptAlertView *alert = [BlockTextPromptAlertView promptWithTitle:@"Prompt Title" message:@"With prompts you do have to keep in mind limited screen space due to the keyboard" textField:&textField block:^(BlockTextPromptAlertView *alert){
+    //The number of placeholders passed in defines how many textfields will be added to the alertview
+    NSArray* placeHolderArray = [[[NSArray alloc] initWithObjects:@"TextField 1",@"TextField 2", @"TextField 3", nil] autorelease];
+    BlockTextPromptAlertView *alert = [BlockTextPromptAlertView promptWithTitle:@"Prompt Title" message:@"With prompts you do have to keep in mind limited screen space due to the keyboard" withPlaceholdersForTextFields:placeHolderArray block:^(BlockTextPromptAlertView *alert){
         [alert.textField resignFirstResponder];
         return YES;
     }];
@@ -94,7 +95,12 @@ - (IBAction)showTextPrompt:(id)sender
     
     [alert setCancelButtonWithTitle:@"Cancel" block:nil];
     [alert addButtonWithTitle:@"Okay" block:^{
-        NSLog(@"Text: %@", textField.text);
+        NSMutableArray *textField = [alert getArrayOfTextInAlertViewTextFields];
+        int textfieldCount = [textField count];
+        int i;
+        for (i=0; i<textfieldCount; i++) {
+            NSLog(@"Textfield %d Text: %@", i,[textField objectAtIndex:i]);
+        }
     }];
     [alert show];
 }
diff --git a/BlockAlertsDemo/ToAddToYourProjects/BlockTextPromptAlertView.h b/BlockAlertsDemo/ToAddToYourProjects/BlockTextPromptAlertView.h
index eeeed88..4817ac7 100755
--- a/BlockAlertsDemo/ToAddToYourProjects/BlockTextPromptAlertView.h
+++ b/BlockAlertsDemo/ToAddToYourProjects/BlockTextPromptAlertView.h
@@ -19,6 +19,8 @@ typedef BOOL(^TextFieldReturnCallBack)(BlockTextPromptAlertView *);
     NSInteger maxLength;
     NSInteger buttonIndexForReturn;
     NSString* defaultText;
+    NSArray* placeholders;
+    int numberOfPlaceholders;
 }
 
 @property (nonatomic, retain) UITextField *textField;
@@ -26,16 +28,13 @@ typedef BOOL(^TextFieldReturnCallBack)(BlockTextPromptAlertView *);
 @property (nonatomic, assign) BOOL disableAutoBecomeFirstResponder;
 @property (nonatomic, assign) BOOL selectAllOnBeginEdit;
 
-+ (BlockTextPromptAlertView *)promptWithTitle:(NSString *)title message:(NSString *)message defaultText:(NSString*)defaultText;
-+ (BlockTextPromptAlertView *)promptWithTitle:(NSString *)title message:(NSString *)message defaultText:(NSString*)defaultText block:(TextFieldReturnCallBack) block;
++ (BlockTextPromptAlertView *)promptWithTitle:(NSString *)title message:(NSString *)message withPlaceholdersForTextFields:(NSArray*)placeHolderArray block:(TextFieldReturnCallBack) block;
 
-+ (BlockTextPromptAlertView *)promptWithTitle:(NSString *)title message:(NSString *)message textField:(out UITextField**)textField;
-
-+ (BlockTextPromptAlertView *)promptWithTitle:(NSString *)title message:(NSString *)message textField:(out UITextField**)textField block:(TextFieldReturnCallBack) block;
 
 - (id)initWithTitle:(NSString *)title message:(NSString *)message defaultText:(NSString*)defaultText;
 
-- (id)initWithTitle:(NSString *)title message:(NSString *)message defaultText:(NSString*)defaultText block: (TextFieldReturnCallBack) block;
+- (id)initWithTitle:(NSString *)title message:(NSString *)message defaultText:(NSString*)defaultText textPlaceholders:(NSArray*)placeholderArray block: (TextFieldReturnCallBack) block;
+- (NSMutableArray*)getArrayOfTextInAlertViewTextFields;
 
 @property (readwrite, copy) BlockTextPromptAlertShouldDismiss shouldDismiss;
 
diff --git a/BlockAlertsDemo/ToAddToYourProjects/BlockTextPromptAlertView.m b/BlockAlertsDemo/ToAddToYourProjects/BlockTextPromptAlertView.m
index f5148cf..0d9f0a6 100644
--- a/BlockAlertsDemo/ToAddToYourProjects/BlockTextPromptAlertView.m
+++ b/BlockAlertsDemo/ToAddToYourProjects/BlockTextPromptAlertView.m
@@ -22,54 +22,22 @@ @implementation BlockTextPromptAlertView
 @synthesize textField, callBack;
 
 
-
-+ (BlockTextPromptAlertView *)promptWithTitle:(NSString *)title message:(NSString *)message defaultText:(NSString*)defaultText {
-    return [self promptWithTitle:title message:message defaultText:defaultText block:nil];
-}
-
-+ (BlockTextPromptAlertView *)promptWithTitle:(NSString *)title message:(NSString *)message defaultText:(NSString*)defaultText block:(TextFieldReturnCallBack)block {
-    return [[[BlockTextPromptAlertView alloc] initWithTitle:title message:message defaultText:defaultText block:block] autorelease];
-}
-
-+ (BlockTextPromptAlertView *)promptWithTitle:(NSString *)title message:(NSString *)message textField:(out UITextField**)textField {
-    return [self promptWithTitle:title message:message textField:textField block:nil];
-}
-
-
-+ (BlockTextPromptAlertView *)promptWithTitle:(NSString *)title message:(NSString *)message textField:(out UITextField**)textField block:(TextFieldReturnCallBack) block{
-    BlockTextPromptAlertView *prompt = [[[BlockTextPromptAlertView alloc] initWithTitle:title message:message defaultText:nil block:block] autorelease];
++ (BlockTextPromptAlertView *)promptWithTitle:(NSString *)title message:(NSString *)message withPlaceholdersForTextFields:(NSArray*)placeHolderArray block:(TextFieldReturnCallBack) block{
     
-    *textField = prompt.textField;
+    BlockTextPromptAlertView *prompt = [[[BlockTextPromptAlertView alloc] initWithTitle:title message:message defaultText:nil textPlaceholders:placeHolderArray block:block] autorelease];
     
     return prompt;
 }
 
-- (void)addComponents:(CGRect)frame {
-    [super addComponents:frame];
+- (id)initWithTitle:(NSString *)title message:(NSString *)message defaultText:(NSString*)defaultTxt textPlaceholders:(NSArray*)placeholderArray block: (TextFieldReturnCallBack) block {
+    placeholders = placeholderArray;
+    self = [self initWithTitle:title message:message defaultText:defaultTxt];
     
-    if (!self.textField) {
-        UITextField *theTextField = [[UITextField alloc] initWithFrame:CGRectMake(kTextBoxHorizontalMargin, _height, frame.size.width - kTextBoxHorizontalMargin * 2, kTextBoxHeight)];
-        
-        [theTextField setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter];
-        [theTextField setAutocapitalizationType:UITextAutocapitalizationTypeWords];
-        [theTextField setBorderStyle:UITextBorderStyleRoundedRect];
-        [theTextField setTextAlignment:NSTextAlignmentCenter];
-        [theTextField setClearButtonMode:UITextFieldViewModeAlways];
-        
-        theTextField.autoresizingMask = UIViewAutoresizingFlexibleWidth;
-        
-        theTextField.delegate = self;
-        theTextField.text = defaultText;
-        
-        self.textField = theTextField;
-    }
-    else {
-        self.textField.frame = CGRectMake(kTextBoxHorizontalMargin, _height, frame.size.width - kTextBoxHorizontalMargin * 2, kTextBoxHeight);
+    if (self) {
+        self.callBack = block;
     }
     
-    [_view addSubview:self.textField];
-    _height += kTextBoxHeight + kTextBoxSpacing;
-    
+    return self;
 }
 
 - (id)initWithTitle:(NSString *)title message:(NSString *)message defaultText:(NSString*)defaultTxt {
@@ -93,17 +61,65 @@ - (id)initWithTitle:(NSString *)title message:(NSString *)message defaultText:(N
     return self;
 }
 
-- (id)initWithTitle:(NSString *)title message:(NSString *)message defaultText:(NSString*)defaultTxt block: (TextFieldReturnCallBack) block {
+#pragma mark - Set up text fields
+
+- (void)addComponents:(CGRect)frame {
+    [super addComponents:frame];
     
-    self = [self initWithTitle:title message:message defaultText:defaultTxt];
+    numberOfPlaceholders = [placeholders count];
+    if (numberOfPlaceholders == 0) {
+        numberOfPlaceholders = 1;
+        [self createTextFieldWithPlaceholderAtIndex:numberOfPlaceholders withFrame:frame];
+    }
+    int i;
+    for (i = 0; i<numberOfPlaceholders; i++) {
+        [self createTextFieldWithPlaceholderAtIndex:i withFrame:frame];
+    }
+}
+
+- (void)createTextFieldWithPlaceholderAtIndex:(int)i withFrame:(CGRect)frame{
+    UITextField *theTextField = [[UITextField alloc] initWithFrame:CGRectMake(kTextBoxHorizontalMargin, _height, frame.size.width - kTextBoxHorizontalMargin * 2, kTextBoxHeight)];
+    NSString *placeholderString = [placeholders objectAtIndex:i];
     
-    if (self) {
-        self.callBack = block;
+    [theTextField setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter];
+    [theTextField setAutocapitalizationType:UITextAutocapitalizationTypeWords];
+    [theTextField setBorderStyle:UITextBorderStyleRoundedRect];
+    [theTextField setTextAlignment:NSTextAlignmentLeft];
+    [theTextField setClearButtonMode:UITextFieldViewModeAlways];
+    
+    theTextField.autoresizingMask = UIViewAutoresizingFlexibleWidth;
+    
+    theTextField.delegate = self;
+    theTextField.text = defaultText;
+    theTextField.placeholder = placeholderString;
+    theTextField.tag = i + 1; // We don't wan't the tag to ever be zero as it needs to be unique
+    
+    [_view addSubview:theTextField];
+    _height += kTextBoxHeight + kTextBoxSpacing;
+}
+
+#pragma mark - Get text in created textfields
+
+-(NSMutableArray*)getArrayOfTextInAlertViewTextFields{
+    
+    NSMutableArray *searchCollection = [[[NSMutableArray alloc] init] autorelease];
+    
+    int i;
+    for (i = 1; i<numberOfPlaceholders + 1; i++) {
+        if ([(UITextField *)[self.view viewWithTag:i] text] == NULL) {
+            [searchCollection addObject:@""];
+        }
+        else {
+            
+            [searchCollection addObject:[(UITextField *)[self.view viewWithTag:i] text]];
+        }
     }
     
-    return self;
+    return searchCollection;
 }
 
+#pragma mark - Button & keyboards methods
+
 - (void)show {
     [[NSNotificationCenter defaultCenter] addObserver:self
                                              selector:@selector(keyboardWillShow:)
@@ -172,9 +188,15 @@ - (void)keyboardWillShow:(NSNotification *)notification {
                          }
                          completion:nil];
     }
+    
+}
+
 
+- (void)setButtonIndexForReturn:(NSInteger)index {
+    buttonIndexForReturn = index;
 }
 
+#pragma mark - Text Field Delegate Methods
 
 - (void)setAllowableCharacters:(NSString*)accepted {
     unacceptedInput = [[[NSCharacterSet characterSetWithCharactersInString:accepted] invertedSet] retain];
@@ -191,9 +213,6 @@ - (void)setMaxLength:(NSInteger)max {
     self.textField.delegate = self;
 }
 
-- (void)setButtonIndexForReturn:(NSInteger)index {
-    buttonIndexForReturn = index;
-}
 
 -(BOOL)textFieldShouldReturn:(UITextField *)_textField{
     if(callBack){
@@ -224,7 +243,7 @@ - (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRang
     
     if ([[string componentsSeparatedByCharactersInSet:unacceptedInput] count] > 1)
         return NO;
-    else 
+    else
         return YES;
 }