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聊天界面的优化
#import <UIKit/UIKit.h>
@class ChatMessage;
@interface ChatViewController : UIViewController<UITextFieldDelegate,UITableViewDataSource,UIImagePickerControllerDelegate,UINavigationControllerDelegate,UIScrollViewDelegate>
- (IBAction)inputClick:(id)sender;
- (IBAction)sendMessage:(id)sender;
@property (weak, nonatomic) IBOutlet UITableView *tableChat;
@property (weak, nonatomic) NSString *strMessage;
@property (weak, nonatomic) IBOutlet UITextField *messageField;
@property (weak, nonatomic) IBOutlet UIView *bottomBar;
//@property (weak, nonatomic) NSString *chatto;
@property (strong, nonatomic) ChatMessage *msg;
@property (weak, nonatomic) UISwipeGestureRecognizer *leftSwipeGestutrReconiger;
//- (IBAction)pickerView:(id)sender;
//- (IBAction)moodViewShow:(id)sender;
//- (IBAction)deleteMessage:(UIButton *)sender;
@end
#import "ChatViewController.h"
#import "ChatMessage.h"
#import "EGODatabase.h"
#import "MessageCell.h"
#import "MessageFrame.h"
#import "IQKeyboardManager.h"
#define ScreenHeight [[UIScreen mainScreen]bounds].size.height
#define ScreenWidth [[UIScreen mainScreen]bounds].size.width
@interface ChatViewController ()
{
NSMutableArray *arrayChatMessage;
NSMutableArray* arrayMessagesFrame;
}
//@property (strong, nonatomic) IBOutlet UIScrollView *scroll;
@property(nonatomic,strong)NSArray* emos;
@end
@implementation ChatViewController
#pragma mark - View lifecycle
- (void)setTitle:(NSString *)title
{
[super setTitle:title];
UILabel *titleView = (UILabel *)self.navigationItem.titleView;
if (!titleView) {
titleView = [[UILabel alloc] initWithFrame:CGRectMake(100, 0, self.view.frame.size.width*2/5, 44)];
titleView.backgroundColor = [UIColor clearColor];
titleView.font = [UIFont fontWithName:@"HelveticaNeue" size:16];
titleView.textColor = [UIColor whiteColor];
titleView.textAlignment = UITextAlignmentCenter;
self.navigationItem.titleView = titleView;
}
titleView.text = title;
[titleView sizeToFit];
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self setTitle:self.msg.strContactName];
//表情窗口初始化
// self.scroll.frame = CGRectMake(0, 0 - 200, ScreenWidth, 200);
CGSize viewSize = [[UIScreen mainScreen] bounds].size;
UIImageView *image = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"bg2.png"]];
[image setFrame:CGRectMake(0, 0, viewSize.width, viewSize.height)];
[self.view addSubview:image];
[self.view sendSubviewToBack:image];
[self.navigationController.navigationBar setBackgroundImage:[UIImage new]
forBarMetrics:UIBarMetricsDefault];
self.navigationController.navigationBar.shadowImage = [UIImage new];
self.navigationController.navigationBar.translucent = YES;
self.tableChat.backgroundColor = [UIColor clearColor];
// Do any additional setup after loading the view.
if (!arrayMessagesFrame) {
arrayMessagesFrame = [[NSMutableArray alloc]init];
}
//载入本地历史消息
[self loadChatMessage];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyBoardWillShow:) name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyBoardWillHide:) name:UIKeyboardWillHideNotification object:nil];
//设置textField输入起始位置
self.messageField.leftView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, 0)];
self.messageField.leftViewMode = UITextFieldViewModeAlways;
self.messageField.delegate = self;
[self registerEvents];
CGRect frame = self.bottomBar.frame;
frame.origin.y = self.view.frame.size.height - 44;
[self.bottomBar setFrame:frame];
//self.messageField.text = [NSString stringWithFormat:@"\t/微笑\t"];
if (arrayMessagesFrame.count > 0) {
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:arrayMessagesFrame.count - 1 inSection:0];
[self.tableChat scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionBottom animated:YES];
}
#ifdef __IPHONE_5_0
float version = [[[UIDevice currentDevice] systemVersion] floatValue];
if (version >= 5.0) {
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyBoardFrameDidChange:) name:UIKeyboardDidChangeFrameNotification object:nil];
}
#endif
//表情列表解析
// NSString* path=[[NSBundle mainBundle]pathForResource:@"emoticons" ofType:@"plist"];
// self.emos=[NSArray arrayWithContentsOfFile:path];
// for (int i=0; i<self.emos.count; i++) {
// NSDictionary* dic=self.emos[i];
// NSString* emoName=[dic objectForKey:@"png"];
// UIImage* image=[UIImage imageNamed:emoName];
// UIButton* btn=[[UIButton alloc]initWithFrame:CGRectMake(i%8*40, i/8*40, 40, 40)];
// btn.tag=i;
// [btn setImage:image forState:UIControlStateNormal];
// [btn addTarget:self action:@selector(showName:) forControlEvents:UIControlEventTouchUpInside];
// [self.scroll addSubview:btn];
// }
// self.scroll.contentSize=CGSizeMake(self.view.bounds.size.width, self.emos.count/8*40);
}
//自定义表情方法
//-(void)showName:(UIButton*)sender{
// NSDictionary* emoDic=[self.emos objectAtIndex:sender.tag];
// NSString* text=[emoDic objectForKey:@"chs"];
//
// self.messageField.text = [NSString stringWithFormat:@"%@%@",self.messageField.text,text];
//
//}
#pragma mark - 键盘处理
#pragma mark 键盘即将显示
-(void)keyBoardFrameDidChange:(NSNotification *)note
{
// NSDictionary *userInfo = [notification userInfo];
// NSValue *aValue = http://www.mamicode.com/[userInfo objectForKey:UIKeyboardFrameEndUserInfoKey];
// CGRect keyboardRect = [aValue CGRectValue];
// NSValue *animationDurationValue = http://www.mamicode.com/[userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey];
// NSTimeInterval animationDuration;
// [animationDurationValue getValue:&animationDuration];
CGSize size = [[UIScreen mainScreen] bounds].size;//获取屏幕的尺寸;
CGRect rect = [note.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];//得到键盘的高度;
CGFloat ty = size.height - rect.size.height;//
[UIView animateWithDuration:[note.userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue] animations:^{
//frame.size.height -= rect.size.height;
if (rect.origin.y != size.height) {
CGRect frame = self.tableChat.frame;
frame.size.height = size.height - rect.size.height - 105;//屏幕高度减去键盘高度减去输入框高度，就是新的table的高度，再赋给table,
[self.bottomBar setFrame:CGRectMake(0, ty-40, 320, 40)];
[self.tableChat setFrame:frame];
}
else{
CGRect frame = self.tableChat.frame;
frame.size.height = size.height - 40;
[self.bottomBar setFrame:CGRectMake(0, size.height-40, ScreenWidth, 40)];
}
// if (self.bottomBar.frame.origin.y == size.height - 40) {
// [self.bottomBar setFrame:CGRectMake(0, ty-40, 320, 40)];
// }
// else{
// [self.bottomBar setFrame:CGRectMake(0, size.height - 40, ScreenWidth, 40)];
// }
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:arrayMessagesFrame.count - 1 inSection:0];
if (arrayMessagesFrame.count== 0) {
return ;
}
else
{
[self.tableChat scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionBottom animated:YES];
}
}];
}
- (void)keyBoardWillShow:(NSNotification *)note{
CGSize size = [[UIScreen mainScreen] bounds].size;
CGRect rect = [note.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
CGFloat ty = size.height - rect.size.height;
[UIView animateWithDuration:[note.userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue] animations:^{
CGRect frame = self.tableChat.frame;
//frame.size.height -= rect.size.height;
//frame.size.height = size.height - rect.size.height -40;
frame.size.height = size.height - rect.size.height - 105;
[self.tableChat setFrame:frame];
[self.bottomBar setFrame:CGRectMake(0, ty-40, 320, 40)];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:arrayMessagesFrame.count - 1 inSection:0];
if (arrayMessagesFrame.count== 0) {
return ;
}
else
{
[self.tableChat scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionBottom animated:YES];
}
}];
//[self.navigationController.navigationBar setHidden:YES];
}
#pragma mark 键盘即将退出
- (void)keyBoardWillHide:(NSNotification *)note{
CGSize size = [[UIScreen mainScreen] bounds].size;
CGRect rect = [note.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
CGFloat ty = size.height - rect.size.height;
[UIView animateWithDuration:[note.userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue] animations:^{
CGRect frame = self.tableChat.frame;
frame.size.height += rect.size.height - 60;
[self.tableChat setFrame:frame];
[self.bottomBar setFrame:CGRectMake(0, size.height-40, 320, 40)];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:arrayMessagesFrame.count - 1 inSection:0];
if (arrayMessagesFrame.count== 0) {
return ;
}
else
{
[self.tableChat scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionBottom animated:YES];
}
}];
}
#pragma mark - 文本框代理方法
#pragma mark 点击textField键盘的回车按钮
- (BOOL)textFieldShouldReturn:(UITextField *)textField{
NSString *content = textField.text;
if ([content isEqualToString:@""]) {
return NO;
}
[self addMessageWithContent:content type:MessageTypeMe];
NSUserDefaults *pref = [NSUserDefaults standardUserDefaults];
NSString* strUid = [pref stringForKey:@"uid"];
//NSString *strFrom = @"andy";
// NSString *strTo = @"andy";
NSString *strMsg = [NSString stringWithFormat:@"{\"type\":\"chat\",\"from\":\"%@\",\"to\":\"%@\",\"msg\":\"%@\"}",strUid,self.msg.strContact,content];
NSLog(@"input message:%@",strMsg);
[[NSNotificationCenter defaultCenter] postNotificationName:@"AppSendMessage" object:strMsg];
[self.tableChat reloadData];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:arrayMessagesFrame.count - 1 inSection:0];
[self.tableChat scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionBottom animated:YES];
self.messageField.text = nil;
return YES;
}
#pragma mark 给数据源增加内容
- (void)addMessageWithContent:(NSString *)content type:(MessageType)type{
MessageFrame *mf = [[MessageFrame alloc] init];
ChatMessage *message = [[ChatMessage alloc] init];
message.strMessage = content;
message.strContact = self.msg.strContact;
message.strContactName = self.msg.strContactName;
message.strTimeStamp = [self generateTimeStamp];
message.type = type;
if (message.type == MessageTypeOther)
{
message.strContactIcon = [self getContactIconByTelephone:message.strContact];
}
else
{
NSUserDefaults *pref = [NSUserDefaults standardUserDefaults];
NSString* strUid = [pref stringForKey:@"uid"];
message.strContactIcon = [self getContactIconByTelephone:strUid];
}
mf.message = message;
mf.showTime = YES;
[arrayMessagesFrame addObject:mf];
}
- (NSString*)getContactAvatar:(NSString*)contactId
{
return @"defaultAvatar";
/* if ([contact.strAvatar isEqualToString:@""]) {
cell.imageView.image = [UIImage imageNamed:@"defaultAvatar"];
}
else
{
NSString *filePath = [NSHomeDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:@"Documents/%@",contact.strAvatar]];
BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:filePath];
if(!fileExists)
{
cell.imageView.image = [UIImage imageNamed:@"defaultAvatar"];
[self downloadAvatar:contact];
}
else
{
cell.imageView.image = [UIImage imageWithContentsOfFile:filePath];
}
}*/
}
- (void)loadChatMessage
{
if (!arrayChatMessage) {
arrayChatMessage = [[NSMutableArray alloc]init];
}
EGODatabase* database = [EGODatabase databaseWithPath:[NSHomeDirectory() stringByAppendingPathComponent:@"Documents/database.db"]];
//查询最新的消息，展示在首页聊天中，点击某一个聊天再查询该聊天下的所有历史消息
NSString *sqlQuery = [[NSString alloc]initWithFormat:@"select * from chatmessage where contact = ‘%@‘ order by timestamp",self.msg.strContact];
NSLog(@"%@",sqlQuery);
int i = 1;
NSUserDefaults *pref = [NSUserDefaults standardUserDefaults];
NSString* strUid = [pref stringForKey:@"uid"];
EGODatabaseResult *result = [database executeQuery:sqlQuery];
for(EGODatabaseRow* row in result) {
MessageFrame *messageFrame = [[MessageFrame alloc] init];
ChatMessage *msg = [[ChatMessage alloc]init];
msg.strContact = [row stringForColumn:@"contact"];
msg.strContactIcon = [self getContactIconByTelephone:msg.strContact];
msg.strMessage = [row stringForColumn:@"message"];
msg.strTimeStamp = [row stringForColumn:@"timestamp"];
msg.type = [row intForColumn:@"type"];
if (msg.type == MessageTypeOther)
{
msg.strContactIcon = [self getContactIconByTelephone:msg.strContact];
}
else
{
msg.strContactIcon = [self getContactIconByTelephone:strUid];
}
[arrayChatMessage insertObject:msg atIndex:0];
messageFrame.message = msg;
messageFrame.showTime = YES;
[arrayMessagesFrame addObject:messageFrame];
i = !i;
NSLog(@"chatview::load message:%@",msg.strMessage);
}
[database close];
}
- (NSString*)getContactIconByTelephone:(NSString*)tel
{
EGODatabase* database = [EGODatabase databaseWithPath:[NSHomeDirectory() stringByAppendingPathComponent:@"Documents/database.db"]];
//查询所有联系人
NSString *sqlQuery = [[NSString alloc]initWithFormat:@"select avatar from contact where tel=‘%@‘",tel];
//NSLog(@"%@",sqlQuery);
NSString* strIcon = @"";
EGODatabaseResult *result = [database executeQuery:sqlQuery];
for(EGODatabaseRow* row in result) {
strIcon = [row stringForColumn:@"avatar"];
}
[database close];
return strIcon;
}
- (void)registerEvents {
// Register the analytics event that are going to be tracked by Baker.
NSArray *analyticEvents = [NSArray arrayWithObjects:
@"AppReceiveNewMessage",
nil];
for (NSString *eventName in analyticEvents) {
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(receiveEvent:)
name:eventName
object:nil];
}
}
- (void)receiveEvent:(NSNotification *)notification {
// If you want, you can handle differently the various events
if ([[notification name] isEqualToString:@"AppReceiveNewMessage"]) {
NSLog(@"%@",notification.name);
NSLog(@"%@",notification.object);
NSDateFormatter *fmt = [[NSDateFormatter alloc] init];
NSDate *date = [NSDate date];
fmt.dateFormat = @"MM-dd"; // @"yyyy-MM-dd HH:mm:ss"
NSString *time = [fmt stringFromDate:date];
//保存到数据库，更新首页聊天记录
NSString *receiveData = http://www.mamicode.com/(NSString *)notification.object;
NSError *error = nil;
NSData *jsonData = http://www.mamicode.com/[receiveData dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:jsonData options:kNilOptions error:&error];
NSString* msgType = [dict objectForKey:@"type"];
NSLog(@"msgtype is %@",msgType);
//检查收到的消息是否是当前正在聊天的联系人发来的，是就更新聊天窗口，否就丢弃。主窗口会保存聊天记录。
NSUserDefaults *pref = [NSUserDefaults standardUserDefaults];
NSString* strCurrentChat = [pref stringForKey:@"CurrentChatContact"];
NSString* chatFrom = [dict objectForKey:@"from"];
if ([strCurrentChat isEqualToString:chatFrom]) {
NSString* chatTo = [dict objectForKey:@"to"];
NSString* msg = [dict objectForKey:@"msg"];
if (![msg isEqualToString:@""]) {
[self addMessageWithContent:msg type:MessageTypeOther];
[self.tableChat reloadData];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:arrayMessagesFrame.count - 1 inSection:0];
[self.tableChat scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionBottom animated:YES];
}
}
}
}
- (NSString*)generateTimeStamp
{
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateStyle:NSDateFormatterMediumStyle];
[dateFormatter setTimeStyle:NSDateFormatterMediumStyle];
[dateFormatter setDateFormat:@"yyyyMMddhhmmss"];
NSString *timerid = [dateFormatter stringFromDate:[NSDate date]];
return timerid;
}
- (void)viewDidAppear:(BOOL)animated
{
NSUserDefaults *pref = [NSUserDefaults standardUserDefaults];
[pref setValue:self.msg.strContact forKey:@"CurrentChatContact"];
}
- (void)viewDidDisappear:(BOOL)animated
{
NSUserDefaults *pref = [NSUserDefaults standardUserDefaults];
[pref setValue:@"" forKey:@"CurrentChatContact"];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [arrayMessagesFrame count];
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return [arrayMessagesFrame[indexPath.row] cellHeight];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = @"MessageCell";
MessageCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[MessageCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
// 设置数据
cell.messageFrame = [arrayMessagesFrame objectAtIndex:indexPath.row];
cell.contentView.backgroundColor = [UIColor clearColor];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:NO];
[self.messageField resignFirstResponder];
}
- (IBAction)sendMessage:(id)sender {
self.strMessage = @"发吧";
// [[NSNotificationCenter defaultCenter] postNotificationName:@"AppSendMessage" object:self.strMessage];
}
- (IBAction)inputClick:(id)sender {
}
@end