如何在ios6和ios7中为4英寸屏幕和3.5英寸屏幕显示UIButton和UITableview

Question

我正在开发一个应用程序。在应用程序中，我为ios7&ios6.我拿了一个视图控制器；在这个视图控制器中，我想显示两个图像，一个用于顶部，另一个用于底部。还显示登录和注销按钮以及登录表视图。在ios7&ios6 3.5英寸屏幕和4英寸屏幕显示两个图像（如顶部图像和底部图像）没有问题。这两幅图像显示正确。但按钮和UITableview未显示。我不明白显示UIButton和UITableview的问题在哪里。请给我一些想法，任何人。我是编程新手。提前谢谢。

下面是我的代码。

Viewcontroller.m（适用于ios7和ios6的3.5英寸和4英寸屏幕）。

 if ([[UIScreen mainScreen] bounds].size.height == 568)  
  {
   if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7)
    {
     imgLogo=[[UIImageView alloc]initWithFrame:CGRectMake(75, 65, 162, 57)];
     imgBuilding=[[UIImageView alloc]initWithFrame:CGRectMake(8, 415, 300, 153 )];
     // Button Login for ios7 4-inches screen.
     btnLogin.frame = CGRectMake(20, 230, 127, 32);
     // Create Login for UITableview
     tableVw=[[UITableView alloc] initWithFrame:CGRectMake(0, 80, 320, 123) style:UITableViewStyleGrouped];
  }
  else
   {
   imgLogo=[[UIImageView alloc]initWithFrame:CGRectMake(75, 45, 162, 57)];
   imgBuilding=[[UIImageView alloc]initWithFrame:CGRectMake(8, 395, 300, 153 )];
   // Button Login for ios6 4-inches screen.
   btnLogin.frame = CGRectMake(20, 230, 127, 32);
   tableVw=[[UITableView alloc] initWithFrame:CGRectMake(0, 80, 320, 123) style:UITableViewStyleGrouped];
    }
   imgLogo.image=[UIImage imageNamed:@"Logo-01.png"];
   [self.view addSubview:imgLogo];
   imgBuilding.image=[UIImage imageNamed:@"image-02.png"];
   imgBuilding.alpha=0.4;      
   [self.view addSubview:imgBuilding];
   btnLogin = [UIButton buttonWithType:UIButtonTypeRoundedRect];
   [btnLogin addTarget:self action:@selector(login) forControlEvents:UIControlEventTouchDown];
   [btnLogin setBackgroundImage:[UIImage imageNamed:@"Sign-in-button.png"] forState:UIControlStateNormal];
   [self.view addSubview:btnLogin];
   // create Login tableview properties
   tableVw.dataSource = self;       
   tableVw.delegate = self;
   tableVw.backgroundColor=[UIColor clearColor];
   tableVw.scrollEnabled=NO;
   tableVw.scrollsToTop=NO;
   [self.view addSubview:tableVw];
 }

/******************em>*************//*ios6和ios7的3.5英寸屏幕

/******************em>*************.*.*/strong>/

 else
 {
  if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7)
   {
    imgLogo=[[UIImageView alloc]initWithFrame:CGRectMake(75, 70, 162, 57)];
    imgBuilding=[[UIImageView alloc]initWithFrame:CGRectMake(0, 345, 320,140 )];
    btnLogin.frame = CGRectMake(20, 200, 127, 32);
    // create Login Tableview
    tableVw=[[UITableView alloc] initWithFrame:CGRectMake(10, 85, 300, 123) style:UITableViewStyleGrouped];
   }
   else
   {
    imgLogo=[[UIImageView alloc]initWithFrame:CGRectMake(75, 50, 162, 57)];
    imgBuilding=[[UIImageView alloc]initWithFrame:CGRectMake(0, 325, 320,140 )];
    btnLogin.frame = CGRectMake(20, 200, 127, 32);
    tableVw=[[UITableView alloc] initWithFrame:CGRectMake(10, 85, 300, 123) style:UITableViewStyleGrouped];
   }
   imgLogo.image=[UIImage imageNamed:@"Logo-01.png"];
   [self.view addSubview:imgLogo];
   imgBuilding.image=[UIImage imageNamed:@"image-02.png"];
   imgBuilding.alpha=0.4;
   [self.view addSubview:imgBuilding];
   // Create Button Properties
   btnLogin = [UIButton buttonWithType:UIButtonTypeRoundedRect];
   [btnLogin addTarget:self action:@selector(login) forControlEvents:UIControlEventTouchDown];
   [btnLogin setBackgroundImage:[UIImage imageNamed:@"Sign-in-button.png"] forState:UIControlStateNormal];
   [self.view addSubview:btnLogin];
   // Create Login Tableview properties
   tableVw.dataSource = self;     
   tableVw.delegate = self;
   tableVw.backgroundColor=[UIColor clearColor];
   tableVw.scrollEnabled=NO;
   tableVw.scrollsToTop=NO;
   [self.view addSubview:tableVw];

   }
  }

Answer 1

试试这个代码。我修改了你的代码。

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    if ([self respondsToSelector:@selector(edgesForExtendedLayout)])
        self.edgesForExtendedLayout = UIRectEdgeNone;
    UIImageView *imgLogo;
    UIImageView *imgBuilding;
    UIButton *btnLogin = [UIButton buttonWithType:UIButtonTypeCustom];
    UITableView *tableVw;
    if ([[UIScreen mainScreen] bounds].size.height == 568){
        if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7){
            imgLogo=[[UIImageView alloc]initWithFrame:CGRectMake(75, 65, 162, 57)];
            imgBuilding=[[UIImageView alloc]initWithFrame:CGRectMake(8, 415, 300, 153 )];
            btnLogin.frame = CGRectMake(20, 230, 127, 32);
            tableVw=[[UITableView alloc] initWithFrame:CGRectMake(0, 123, 320, 100) style:UITableViewStylePlain];
        }else{
            imgLogo=[[UIImageView alloc]initWithFrame:CGRectMake(75, 45, 162, 57)];
            imgBuilding=[[UIImageView alloc]initWithFrame:CGRectMake(8, 395, 300, 153 )];

            btnLogin.frame = CGRectMake(20, 210, 127, 32);
            tableVw=[[UITableView alloc] initWithFrame:CGRectMake(0, 103, 320, 100) style:UITableViewStylePlain];
        }
        imgLogo.image=[UIImage imageNamed:@"icon.png"];
        [self.view addSubview:imgLogo];
        imgBuilding.image=[UIImage imageNamed:@"icon.png"];
        imgBuilding.alpha=0.4;
        [self.view addSubview:imgBuilding];
        [btnLogin addTarget:self action:@selector(login) forControlEvents:UIControlEventTouchDown];
        [btnLogin setBackgroundColor:[UIColor blackColor]];
        [self.view addSubview:btnLogin];
        tableVw.scrollEnabled=NO;
        tableVw.scrollsToTop=NO;
        tableVw.dataSource=self;
        tableVw.delegate=self;
        [self.view addSubview:tableVw];
    }else{
        if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7){
            imgLogo=[[UIImageView alloc]initWithFrame:CGRectMake(75, 70, 162, 57)];
            imgBuilding=[[UIImageView alloc]initWithFrame:CGRectMake(0, 345, 320,140 )];
            btnLogin.frame = CGRectMake(20, 230, 127, 32);
            tableVw=[[UITableView alloc] initWithFrame:CGRectMake(10, 127, 300, 100) style:UITableViewStylePlain];
        }else{
            imgLogo=[[UIImageView alloc]initWithFrame:CGRectMake(75, 50, 162, 57)];
            imgBuilding=[[UIImageView alloc]initWithFrame:CGRectMake(0, 325, 320,140 )];
            btnLogin.frame = CGRectMake(20, 200, 127, 32);
            tableVw=[[UITableView alloc] initWithFrame:CGRectMake(10, 85, 300, 123) style:UITableViewStylePlain];
        }
        imgLogo.image=[UIImage imageNamed:@"icon.png"];
        [self.view addSubview:imgLogo];
        imgBuilding.image=[UIImage imageNamed:@"icon.png"];
        imgBuilding.alpha=0.4;
        [self.view addSubview:imgBuilding];
        [btnLogin addTarget:self action:@selector(login) forControlEvents:UIControlEventTouchDown];
        btnLogin.backgroundColor=[UIColor blackColor];
        [self.view addSubview:btnLogin];
        tableVw.dataSource = self;
        tableVw.delegate = self;
        tableVw.scrollEnabled=NO;
        tableVw.scrollsToTop=NO;
        [self.view addSubview:tableVw];
    }
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)aTableView
{
    return 1;
}
- (NSInteger)tableView:(UITableView *)aTableView numberOfRowsInSection:(NSInteger)section
{
    return 2;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return 40;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSString *CellIdentifier =[NSString stringWithFormat:@"%D",indexPath.row];
    UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    cell=[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
    cell.textLabel.text=@"1";

    return cell;
}