小编viv*_*iya的帖子

我在一个viewcontroller中有tableview.我有一节.我想在页脚中添加按钮.我写了这段代码,但页脚视图没有显示.

- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section{

    UIView *footerView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 320, 40)];
    UIButton *addcharity=[UIButton buttonWithType:UIButtonTypeCustom];
    [addcharity setTitle:@"Add to other" forState:UIControlStateNormal];
    [addcharity addTarget:self action:@selector(addCharity:) forControlEvents:UIControlEventTouchUpInside];
    addcharity.frame=CGRectMake(0, 0, 40, 30);
    [footerView addSubview:addcharity];
    return footerView;

}

我还在其委托方法中设置了页脚100的高度.

截图:最初我有3个数据.但是当我搜索特定数据并且结果将在tableview中显示时,我有一个数据,所以那时页脚位置发生了变化.我想在最初的地方修剪页脚.

编辑:

作为替代解决方案,可以通过在末尾添加额外的单元来添加按钮.

我有一张图片.我想把它旋转成表面上的硬币旋转.我试过旋转变换,但它没有像那样旋转.如何实现这样的动画？

码:

- (void)viewDidLoad {
[super viewDidLoad];
[self.view setUserInteractionEnabled:YES];
lbl_facebook.font=[UIFont fontWithName:GZFont size:12.0f];
txtPassword.font=[UIFont fontWithName:GZFont size:15.0f];
txtUsername.font=[UIFont fontWithName:GZFont size:15.0f];

CATransition* transition = [CATransition animation];
transition.startProgress = 0;
transition.endProgress = 1.0;
transition.type = @"flip";
transition.subtype = @"fromRight";
transition.duration = 0.3;
transition.repeatCount = 2;
[_Image.layer addAnimation:transition forKey:@"transition"];
}

ND:

#import "LoginViewController.h"

#import "RegistrationViewController.h"
#import "ForgetPasswordViewController.h"
#import "ForgetPasswordController.h"
#import "SearchServiceProviderViewController.h"
#import <QuartzCore/QuartzCore.h>

我正在尝试设置表的动态高度.但是当我记录表格的高度时,它显示我动态高度但没有设置为实际表格.

这是我的代码:

CGRect table_frame;
table_frame=table_sender.frame;
NSLog(@"table fram: %f",table_frame.size.height); //got table height 444
float height = [senderHistoryDataArray count]  * 40 +40 ; // 4*25.00
NSLog(@"height of table: %f",height);  //got this height 200
if(height>=444){
    table_frame.size.height=444;
}
else{
    table_frame.size.height=height;
    NSLog(@"height set");  //also displying this line in log
}

table_sender.frame=table_frame;
[table_sender reloadData];

出局:

当我取消选中自动布局时,它会起作用,但它只显示比以前更多的部分.

我想在我的应用程序中使用AFNetworking类来与服务器通信.

我是这个图书馆的新手.这是我的代码:

 NSDictionary *user=[[NSDictionary alloc]initWithObjectsAndKeys:@"hiteshp",@"userName",@"12345^",@"password", nil];
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
AFHTTPRequestSerializer *requestSerializer = [AFHTTPRequestSerializer serializer];
[requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
manager.requestSerializer=requestSerializer;   //[AFJSONRequestSerializer serializer];
[manager POST:@"myURL" parameters:user success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"JSON: %@ %@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];

我想为此请求添加标头.我试过但它不起作用.如果我写了注释行,那么请求已完成,但我还想再添加一个字段"Authorization"来重新设置.Andhow打印请求标题？

我想在iOS7中设置工具栏的背景颜色:我用这个设置颜色:

toolBar= [[UIToolbar alloc] initWithFrame:CGRectMake(0,0,320,40)];
[toolBar setBarStyle:UIBarStyleBlack];
toolBar.items = [[NSArray alloc] initWithObjects:barButtonDone,flexible,barButtonOther,nil];
toolBar.tintColor=[UIColor colorWithPatternImage:[UIImage imageNamed:@"dropdownbar"]];

但是背景图像没有显示.

我想知道这是做什么的:

 NSArray *ver = [[UIDevice currentDevice].systemVersion componentsSeparatedByString:@"."];
if ([[ver objectAtIndex:0] intValue] >= 7) {
    self.navigationController.navigationBar.barTintColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"top_bar"]];
    self.navigationController.navigationBar.translucent = NO;
} else {
    self.navigationController.navigationBar.tintColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"top_bar"]];

}

Nd如何更改默认导航栏的后退按钮颜色:

我从用户那里获取信用卡号作为输入.我想允许16个数字,并希望在每个4个数字后格式化空格.为此,我做了以下.

-(void)cardNumberValidation:(id)sender{
    UITextField *temp=sender;

    if ([temp.text length]>19) {
        txtCard.text= [temp.text substringToIndex:[temp.text length] - 1];
    }
    if ([temp.text length]==4) {
        txtCard.text=[NSString stringWithFormat:@"%@ ",temp.text];

        }
    if ([temp.text length]==9) {
        txtCard.text=[NSString stringWithFormat:@"%@ ",temp.text];
        }
    if ([temp.text length]==14) {
        NSString *lastChar = [txtCard.text substringFromIndex:[txtCard.text length] - 1];
        txtCard.text=[NSString stringWithFormat:@"%@ ",temp.text];
    }
}

但是现在当用户输入所有内容后删除字符然后如果它将达到15个字符,然后用户将删除另外一个字符,那么此代码将在其后添加空格,并且不允许进一步删除它.

任何人都可以给我这个或更好的方法来做这个建议.

我通过放大缩小效果显示弹出视图.当我的应用程序将在登录后从safari返回我正在显示该视图.这在模拟器中工作正常.但它不适用于设备.我在ipad检查那件事.这是我的代码:

    [MyAppDelegate openSessionWithAllowLoginUI:YES completionBlock:^(BOOL result) {
    NSLog(@"Connecte via Joint Page Thank you");
    if (result) {
        NSLog(@"%@  %d ", [[NSUserDefaults standardUserDefaults] dictionaryRepresentation],[[[NSUserDefaults standardUserDefaults] valueForKey:@"isSender"]boolValue]);
        if([[[NSUserDefaults standardUserDefaults] valueForKey:@"isSender"]boolValue]==0 && [[[NSUserDefaults standardUserDefaults] valueForKey:@"isServiceProvider"] boolValue]==0){
            lbl_register.font=[UIFont fontWithName:GZFont size:16];
            lbl_serviceProvider.font=[UIFont fontWithName:GZFont size:14];
            lbl_customer.font=[UIFont fontWithName:GZFont size:14];
        SelectionView.center=self.view.center;
            SelectionView.layer.borderColor=[[UIColor blackColor] CGColor];
            SelectionView.layer.borderWidth=1.0;
            SelectionView.layer.cornerRadius=5;
            SelectionView.layer.masksToBounds=YES;

            [UIView animateWithDuration:0.4 animations:^{
                SelectionView.transform = CGAffineTransformScale(CGAffineTransformIdentity, 1.1, 1.1);
            } completion:^(BOOL finished) {
                NSLog(@"popped");
                SelectionView.center=self.view.center;

                [UIView animateWithDuration:0.4 animations:^{
                    SelectionView.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0.95,0.95);
                } completion:^(BOOL finished) {
                   // self.view.userInteractionEnabled=NO;
                }];
            }];
            [self.view addSubview:SelectionView];