仿QQ布局实例
- (UIImageView*)iconImageView
{
if (_iconImageView==
nil) {
_iconImageView = [[UIImageViewalloc]init];
[self.contentViewaddSubview:_iconImageView];
}
return
_iconImageView;
}
- (UILabel*)timerLabel
{
if (_timerLabel==
nil) {
_timerLabel = [[UILabelalloc]init];
_timerLabel.textAlignment=
NSTextAlignmentCenter;
_timerLabel.font= [UIFontsystemFontOfSize:13.0];
[self.contentViewaddSubview:_timerLabel];
}
return
_timerLabel;
}
- (UIButton*)textBtn
{
if (_textBtn==
nil) {
_textBtn = [[UIButtonalloc]init];
_textBtn.titleLabel.numberOfLines=
0;
_textBtn.titleLabel.font=
[UIFontsystemFontOfSize:13.0];
[self.contentViewaddSubview:_textBtn];
}
return
_textBtn;
}
- (void)setQqInfo:(SUNQQInfo*)qqInfo
{
_qqInfo = qqInfo;
//
设置时间
self.timerLabel.text=
qqInfo.time;
CGFloat timerW = [UIScreenmainScreen].bounds.size.width;
self.timerLabel.frame=
CGRectMake(0,0,
timerW,35);
//
设置头像
if (qqInfo.type) {
CGFloat imageX =kMargin;
CGFloat imageY =CGRectGetMaxY(self.timerLabel.frame)
+
kMargin;
self.iconImageView.frame=
CGRectMake(imageX, imageY,kIconW,kIconH);
self.iconImageView.image=
[UIImageimageNamed:@"other"];
}else{
CGFloat X = [UIScreenmainScreen].bounds.size.width-
kMargin
-kIconW;
CGFloat Y =CGRectGetMaxY(self.timerLabel.frame)
+
10;
self.iconImageView.frame=
CGRectMake(X, Y,kIconW,kIconH);
self.iconImageView.image=
[UIImageimageNamed:@"me"];
}
//
设置文字
NSDictionary *dict =@{NSFontAttributeName:
[UIFontsystemFontOfSize:13.0]};
CGRect frameText = [qqInfo.textboundingRectWithSize:CGSizeMake(150,MAXFLOAT)options:NSStringDrawingUsesLineFragmentOriginattributes:dictcontext:nil];
[self.textBtnsetTitle:qqInfo.textforState:UIControlStateNormal];
self.textBtn.contentEdgeInsets=
UIEdgeInsetsMake(20,20,20,20);
CGFloat textY =CGRectGetMaxY(self.timerLabel.frame)
+
10;
CGFloat textW = frameText.size.width+
40;
CGFloat textH = frameText.size.height+
40;
CGFloat textX;
if (qqInfo.type) {
textX =
CGRectGetMaxX(self.iconImageView.frame)
+
10;
}else{
textX = [UIScreenmainScreen].bounds.size.width-
2*kMargin-
kIconW
- textW;
}
self.textBtn.frame=
CGRectMake(textX, textY, textW, textH);
//
设置行高
CGFloat maxH =MAX(CGRectGetMaxY(self.iconImageView.frame),CGRectGetMaxY(self.textBtn.frame));
self.cellHight= maxH +
kMargin;
//
设置聊天背景
if (qqInfo.type) {
UIImage *image = [UIImageimageNamed:@"chat_recive_nor"];
UIImage *image1 = [imagestretchableImageWithLeftCapWidth:30 topCapHeight:30];
[self.textBtnsetBackgroundImage:image1forState:UIControlStateNormal];
[self.textBtnsetTitleColor:[UIColorblackColor]forState:UIControlStateNormal];
}else{
UIImage *image = [UIImageimageNamed:@"chat_send_nor"];
UIImage *image1 = [imagestretchableImageWithLeftCapWidth:30topCapHeight:30];
[self.textBtnsetBackgroundImage:image1forState:UIControlStateNormal];
[self.textBtnsetTitleColor:[UIColorwhiteColor]forState:UIControlStateNormal];
}
}
{
[superviewDidLoad];
NSLog(@"%@",self.qqs);
self.tableView.dataSource=
self;
self.tableView.delegate=
self;
//
去除分割线
self.tableView.separatorStyle=
UITableViewCellSeparatorStyleNone;
//
设置背景图片
self.tableView.backgroundColor=
[UIColorcolorWithRed:224/255.0green:224/255.0blue:224/255.0alpha:1.0];
//
界面不允许被点击
self.tableView.allowsSelection=
NO;
//
监听键盘的通知
[[NSNotificationCenterdefaultCenter]addObserver:selfselector:@selector(keyboardWillChangeFrame:)name:UIKeyboardWillChangeFrameNotificationobject:nil];
//
处理文本输入框
self.inputView.leftView=
[[UITextFieldalloc]initWithFrame:CGRectMake(0,0,5,0)];
self.inputView.leftViewMode=
UITextFieldViewModeAlways;
self.inputView.delegate=
self;
}
- (
void)keyboardWillChangeFrame:(NSNotification*)noti{
/**
UIKeyboardFrameBeginUserInfoKey = NSRect: {{0, 480}, {320, 216}};
UIKeyboardCenterBeginUserInfoKey = NSPoint: {160, 588};
UIKeyboardFrameEndUserInfoKey = NSRect: {{0, 264}, {320, 216}};
UIKeyboardCenterEndUserInfoKey = NSPoint: {160, 372};
UIKeyboardAnimationDurationUserInfoKey = 0.25;
UIKeyboardFrameChangedByUserInteraction = 0;
UIKeyboardBoundsUserInfoKey = NSRect: {{0, 0}, {320, 216}};
UIKeyboardAnimationCurveUserInfoKey = 7;
}
*/
NSLog(@"%@",noti.userInfo);
//
设置窗口的颜色
self.view.window.backgroundColor=
self.tableView.backgroundColor;
//
取出键盘动画的时间
CGFloat duration= [noti.userInfo[UIKeyboardAnimationDurationUserInfoKey]doubleValue];
//
取得键盘最后的frame
CGRect keyboardFrame = [noti.userInfo[UIKeyboardFrameEndUserInfoKey]CGRectValue];
//
计算控制器移动的距离
CGFloat tansformY = keyboardFrame.origin.y-
self.view.frame.size.height;
//
执行动画
[UIViewanimateWithDuration:durationanimations:^{
self.view.transform=
CGAffineTransformMakeTranslation(0,
tansformY);
}];
}
- (
void)scrollViewWillBeginDecelerating:(UIScrollView*)scrollView{
//
关闭键盘
[self.viewendEditing:YES];
}
- (
void)dealloc{
[[NSNotificationCenterdefaultCenter]removeObserver:self];
}
- (
void)didReceiveMemoryWarning{
[superdidReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
} //设置状态栏的可见性
- (BOOL)prefersStatusBarHidden
{
return
YES;
} #pragma mark -实现代理的方法
- (CGFloat)tableView:(UITableView*)tableView
heightForRowAtIndexPath:(NSIndexPath*)indexPath
{
SUNQQView *qqView = [[SUNQQViewalloc]init];
qqView.qqInfo=
self.qqs[indexPath.row];
return qqView.cellHight;
}
- (
UITableViewCell*)tableView:(UITableView*)tableViewcellForRowAtIndexPath:(NSIndexPath*)indexPath
{
static
NSString *ID =@"cell";
SUNQQView *cell = [tableViewdequeueReusableCellWithIdentifier:ID];
if (cell ==nil) {
cell = [[SUNQQViewalloc]initWithStyle:UITableViewCellStyleDefaultreuseIdentifier:ID];
}
//
取出数据
cell.qqInfo=
self.qqs[indexPath.row];
cell.backgroundColor= [UIColorclearColor];
return cell;
}
- (
NSInteger)tableView:(UITableView*)tableViewnumberOfRowsInSection:(NSInteger)section
{
return
self.qqs.count;
}
- (
BOOL)textFieldShouldReturn:(UITextField*)textField{
NSLog(@"%@",textField);
//
添加模型
SUNQQInfo *qqInfo = [[SUNQQInfoalloc]init];
qqInfo.type=
0;
qqInfo.time=
@"11:23";
qqInfo.text= textField.text;
[self.qqsaddObject:qqInfo];
//
刷新表格
[self.tableViewreloadData];
//
自动滚动到最后一行
NSIndexPath *path = [NSIndexPathindexPathForRow:self.qqs.count-
1
inSection:0];
[self.tableViewscrollToRowAtIndexPath:pathatScrollPosition:UITableViewScrollPositionBottomanimated:YES];
//
清除文本框上的文字
self.inputView.text=
nil;
return
YES;
}