我有一个按钮和表.现在我想以这样的方式点击:每当我选择任何一行tableview并按下按钮时,该特定按钮按下事件就会发生.为此,首先我给每一行标记,即
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *LabelCellIdentifier = @"cell";
UITableViewCell *cell;
cell = [tableView dequeueReusableCellWithIdentifier:LabelCellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:LabelCellIdentifier];
}
if (indexPath.row <= [_arrayMp3Link count]) {
cell.textLabel.text = [_arrayMp3Link objectAtIndex:indexPath.row];
}
// now tag each row
NSInteger count = 1;
for (NSInteger i = 0; i < indexPath.section; i++) {
count += [[tableView dataSource] tableView:tableView numberOfRowsInSection:i];
}
count += indexPath.row;
// dequeue, create and configure...
cell.tag = …如何关闭aCtive Session Facebook-iOS-Sdk每当我在杀死应用程序后启动我的应用程序时,它会给我之前的登录会话详细信息.当我点击facebook按钮时.我已经使用了所有内容[appDelegate.session closeAndClearTokenInformation];
[FBSession.activeSession close]; [FBSession.activeSession closeAndClearTokenInformation]..但是活动会话仍然没有关闭.如何关闭以前的会话数据点击.
我使用下面的代码清除,但每当我点击Facebook按钮开始新的会话..它给我回到以前的凭据.
- (IBAction)buttonClickHandler:(id)sender {
appDelegate = [[UIApplication sharedApplication]delegate];
// this button's job is to flip-flop the session from open to closed
if (appDelegate.session.isOpen) {
[appDelegate.session closeAndClearTokenInformation];
[FBSession.activeSession close];
[FBSession.activeSession closeAndClearTokenInformation];
FBSession.activeSession=nil;
} else {
if (appDelegate.session.state != FBSessionStateCreated) {
// Create a new, logged out session.
appDelegate.session = [[FBSession alloc] init];
}
// if the session isn't open, let's open it now and present the login UX to the …我有UITableView从plist填充日期和Even部分的标题已经从plist填充.UITableView它给我默认的blue部分颜色和White文本颜色.像这样......
-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
NSString *key = nil;
if ([tableView isEqual:self.searchDisplayController.searchResultsTableView])
{
key = [self.searchResults objectAtIndex:section];
}
else{
key = [self.mySections objectAtIndex:section];
}
// NSString *key = [self.mySections objectAtIndex:section];
return [NSString stringWithFormat:@"%@", key];
}
.现在我需要更改此默认文本颜色和Section的颜色,为此我正在实现下面显示的代码.但它给了我自己的代码UIView.
-(UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
UIView *tempView=[[UIView alloc]initWithFrame:CGRectMake(0,200,300,244)];
tempView.backgroundColor=[UIColor clearColor];
UILabel *tempLabel=[[UILabel alloc]initWithFrame:CGRectMake(15,0,300,44)];
tempLabel.backgroundColor=[UIColor clearColor];
tempLabel.shadowColor = [UIColor blackColor];
tempLabel.shadowOffset = CGSizeMake(0,2);
tempLabel.textColor = [UIColor redColor]; //here you can change the text color …我需要在Objective C中使用正则表达式接受male或者female只接受..应该是case-Insensitive接受更低和更高的手段.我经历了苹果文档.. 并在代码下面实现但不工作...
- > 男性或女性只能被接受
-(BOOL)genderValidate:(NSString *)string{
NSError *error=nil;
NSRegularExpression *regex =[NSRegularExpression regularExpressionWithPattern:@"\\b (m|f)(a|e)(l|m)(e|a)(l)(e) \\b" options:(NSRegularExpressionCaseInsensitive) error: &error];
NSUInteger numberofmatches =[regex numberOfMatchesInString:string options:0 range:NSMakeRange(0,[string length])];
return numberofmatches;
}