Integrated multi-line SMS-style text box for chat pane. Added a tableView for chat messages.

1 files changed, 210 insertions, 0 deletions

diff --git a/Classes/ChatViewController.m b/Classes/ChatViewController.m
new file mode 100644
index 0000000..aee79c8
--- /dev/null
+++ b/Classes/ChatViewController.m
@@ -0,0 +1,210 @@
+//
+//  ChatViewController.m
+//  NearMe
+//
+//  Created by TW on 9/29/12.
+//  Copyright 2012 __MyCompanyName__. All rights reserved.
+//
+
+#import "ChatViewController.h"
+
+
+@implementation ChatViewController
+
+@synthesize chatTableView = _chatTableView;
+
+-(id)init
+{
+	self = [super init];
+	if(self){
+		[[NSNotificationCenter defaultCenter] addObserver:self 
+												 selector:@selector(keyboardWillShow:) 
+													 name:UIKeyboardWillShowNotification 
+												   object:nil];
+		
+		[[NSNotificationCenter defaultCenter] addObserver:self 
+												 selector:@selector(keyboardWillHide:) 
+													 name:UIKeyboardWillHideNotification 
+												   object:nil];		
+	}
+	
+	return self;
+}
+
+
+
+// Implement loadView to create a view hierarchy programmatically, without using a nib.
+- (void)loadView {
+	self.view = [[[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]] autorelease];
+    self.view.backgroundColor = [UIColor colorWithRed:219.0f/255.0f green:226.0f/255.0f blue:237.0f/255.0f alpha:1];
+	
+	chatTableView = [[UITableView alloc] initWithFrame:self.view.bounds style:UITableViewStylePlain];
+	[self.view addSubview:chatTableView];
+	
+    containerView = [[UIView alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height - 40, 320, 40)];
+    
+	textView = [[HPGrowingTextView alloc] initWithFrame:CGRectMake(6, 3, 240, 40)];
+    textView.contentInset = UIEdgeInsetsMake(0, 5, 0, 5);
+    
+	textView.minNumberOfLines = 1;
+	textView.maxNumberOfLines = 6;
+	textView.returnKeyType = UIReturnKeyGo; //just as an example
+	textView.font = [UIFont systemFontOfSize:15.0f];
+	textView.delegate = self;
+    textView.internalTextView.scrollIndicatorInsets = UIEdgeInsetsMake(5, 0, 5, 0);
+    textView.backgroundColor = [UIColor whiteColor];
+    
+    // textView.text = @"test\n\ntest";
+	// textView.animateHeightChange = NO; //turns off animation
+
+    [self.view addSubview:containerView];
+	
+    UIImage *rawEntryBackground = [UIImage imageNamed:@"MessageEntryInputField.png"];
+    UIImage *entryBackground = [rawEntryBackground stretchableImageWithLeftCapWidth:13 topCapHeight:22];
+    UIImageView *entryImageView = [[[UIImageView alloc] initWithImage:entryBackground] autorelease];
+    entryImageView.frame = CGRectMake(5, 0, 248, 40);
+    entryImageView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
+            
+    UIImage *rawBackground = [UIImage imageNamed:@"MessageEntryBackground.png"];
+    UIImage *background = [rawBackground stretchableImageWithLeftCapWidth:13 topCapHeight:22];
+    UIImageView *imageView = [[[UIImageView alloc] initWithImage:background] autorelease];
+    imageView.frame = CGRectMake(0, 0, containerView.frame.size.width, containerView.frame.size.height);
+    imageView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
+
+    textView.autoresizingMask = UIViewAutoresizingFlexibleWidth;
+    
+    // view hierachy
+    [containerView addSubview:imageView];
+    [containerView addSubview:textView];
+    [containerView addSubview:entryImageView];
+
+    UIImage *sendBtnBackground = [[UIImage imageNamed:@"MessageEntrySendButton.png"] stretchableImageWithLeftCapWidth:13 topCapHeight:0];
+    UIImage *selectedSendBtnBackground = [[UIImage imageNamed:@"MessageEntrySendButton.png"] stretchableImageWithLeftCapWidth:13 topCapHeight:0];
+    
+	UIButton *doneBtn = [UIButton buttonWithType:UIButtonTypeCustom];
+	doneBtn.frame = CGRectMake(containerView.frame.size.width - 69, 8, 63, 27);
+    doneBtn.autoresizingMask = UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleLeftMargin;
+	[doneBtn setTitle:@"Done" forState:UIControlStateNormal];
+    
+    [doneBtn setTitleShadowColor:[UIColor colorWithWhite:0 alpha:0.4] forState:UIControlStateNormal];
+    doneBtn.titleLabel.shadowOffset = CGSizeMake (0.0, -1.0);
+    doneBtn.titleLabel.font = [UIFont boldSystemFontOfSize:18.0f];
+    
+    [doneBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
+	[doneBtn addTarget:self action:@selector(resignTextView) forControlEvents:UIControlEventTouchUpInside];
+    [doneBtn setBackgroundImage:sendBtnBackground forState:UIControlStateNormal];
+    [doneBtn setBackgroundImage:selectedSendBtnBackground forState:UIControlStateSelected];
+	[containerView addSubview:doneBtn];
+    containerView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin;
+}
+
+-(void)resignTextView
+{
+	[textView resignFirstResponder];
+}
+
+//Code from Brett Schumann
+-(void) keyboardWillShow:(NSNotification *)note{
+    // get keyboard size and loctaion
+	CGRect keyboardBounds;
+    [[note.userInfo valueForKey:UIKeyboardFrameEndUserInfoKey] getValue: &keyboardBounds];
+    NSNumber *duration = [note.userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey];
+    NSNumber *curve = [note.userInfo objectForKey:UIKeyboardAnimationCurveUserInfoKey];
+    
+    // Need to translate the bounds to account for rotation.
+    keyboardBounds = [self.view convertRect:keyboardBounds toView:nil];
+    
+	// get a rect for the textView frame
+	CGRect containerFrame = containerView.frame;
+    containerFrame.origin.y = self.view.bounds.size.height - (keyboardBounds.size.height + containerFrame.size.height);
+	// animations settings
+	[UIView beginAnimations:nil context:NULL];
+	[UIView setAnimationBeginsFromCurrentState:YES];
+    [UIView setAnimationDuration:[duration doubleValue]];
+    [UIView setAnimationCurve:[curve intValue]];
+	
+	// set views with new info
+	containerView.frame = containerFrame;
+	
+	// commit animations
+	[UIView commitAnimations];
+}
+
+-(void) keyboardWillHide:(NSNotification *)note{
+    NSNumber *duration = [note.userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey];
+    NSNumber *curve = [note.userInfo objectForKey:UIKeyboardAnimationCurveUserInfoKey];
+	
+	// get a rect for the textView frame
+	CGRect containerFrame = containerView.frame;
+    containerFrame.origin.y = self.view.bounds.size.height - containerFrame.size.height;
+	
+	// animations settings
+	[UIView beginAnimations:nil context:NULL];
+	[UIView setAnimationBeginsFromCurrentState:YES];
+    [UIView setAnimationDuration:[duration doubleValue]];
+    [UIView setAnimationCurve:[curve intValue]];
+
+	// set views with new info
+	containerView.frame = containerFrame;
+	
+	// commit animations
+	[UIView commitAnimations];
+}
+
+- (void)growingTextView:(HPGrowingTextView *)growingTextView willChangeHeight:(float)height
+{
+    float diff = (growingTextView.frame.size.height - height);
+		
+	CGRect r = containerView.frame;
+    r.size.height -= diff;
+    r.origin.y += diff;
+	containerView.frame = r;
+}
+
+-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
+{
+    return YES;
+}
+
+- (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)viewDidUnload {
+	// Release any retained subviews of the main view.
+	// e.g. self.myOutlet = nil;
+}
+
+
+- (void)dealloc {
+	[chatTableView release];
+    [textView release];
+	[containerView release];
+    [super dealloc];
+}
+
+# pragma mark UITableViewDelegate methods
+
+- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
+	return 5;
+}
+
+- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
+	static NSString *CellIdentifier = @"ChatCell";
+	 
+	UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
+	if (cell == nil) {
+		cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
+	}
+	 
+	// Set up the cell...
+	NSString *cellValue = @"test";
+	cell.textLabel.text = cellValue;
+	 
+	return cell;
+}
+
+@end