在2選項卡視圖中更改自定義選項卡欄位置控制器

Question

我正在使用自定義選項卡欄buttons.I已在自定義選項卡欄的頂部position.I已成功做到了。但我希望標籤欄位置在中心爲兩個視圖控制器>我該怎麼做。是否有可能？ 這是我的代碼

這是我的自定義選項卡bar.m文件

-(void)addCustomElements 
{ 
    btn1 = [UIButton buttonWithType:UIButtonTypeCustom]; //Setup the button 
btn1.frame = CGRectMake(0, 264, 65, 40); // Set the frame (size and position) of the button) 
[btn1 setBackgroundColor:[UIColor darkGrayColor]]; 
[btn1.titleLabel setFont:[UIFont fontWithName:@"Helvetica Neue" size:16.0]]; 
[btn1 setTitle:@"Info" forState:UIControlStateNormal]; 
[btn1 setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]; 
[btn1 setTag:0]; // Assign the button a "tag" so when our "click" event is called we know which button was pressed. 
[btn1 setSelected:true]; // Set this button as selected (we will select the others to false as we only want Tab 1 to be selected initially 

// Now we repeat the process for the other buttons 

btn2 = [UIButton buttonWithType:UIButtonTypeCustom]; //Setup the button 
btn2.frame = CGRectMake(64, 264, 65, 40); // Set the frame (size and position) of the button) 
[btn2 setBackgroundColor:[UIColor darkGrayColor]]; 
[btn2.titleLabel setFont:[UIFont fontWithName:@"Helvetica Neue" size:16.0]]; 
[btn2 setTitle:@"Book" forState:UIControlStateNormal]; 
[btn2 setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]; 
[btn2 setTag:1]; // Assign the button a "tag" so when our "click" event is called we know which button was pressed. 
[btn2 setSelected:true]; 


btn3 = [UIButton buttonWithType:UIButtonTypeCustom]; //Setup the button 
btn3.frame = CGRectMake(128, 264, 65, 40); // Set the frame (size and position) of the button) 
[btn3 setBackgroundColor:[UIColor darkGrayColor]]; 
[btn3.titleLabel setFont:[UIFont fontWithName:@"Helvetica Neue" size:16.0]]; 
[btn3 setTitle:@"Menu" forState:UIControlStateNormal]; 
[btn3 setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]; 
[btn3 setTag:2]; // Assign the button a "tag" so when our "click" event is called we know which button was pressed. 
[btn3 setSelected:true]; 

btn4 = [UIButton buttonWithType:UIButtonTypeCustom]; //Setup the button 
btn4.frame = CGRectMake(193, 264, 65, 40); // Set the frame (size and position) of the button) 
[btn4.titleLabel setFont:[UIFont fontWithName:@"Helvetica Neue" size:16.0]]; 
[btn4 setBackgroundColor:[UIColor darkGrayColor]]; 
[btn4 setTitle:@"Reviews" forState:UIControlStateNormal]; 
[btn4 setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]; 
[btn4 setTag:3]; // Assign the button a "tag" so when our "click" event is called we know which button was pressed. 
[btn4 setSelected:true]; 

btn5 = [UIButton buttonWithType:UIButtonTypeCustom]; //Setup the button 
btn5.frame = CGRectMake(258, 264, 65, 40); // Set the frame (size and position) of the button) 
[btn5.titleLabel setFont:[UIFont fontWithName:@"Helvetica Neue" size:16.0]]; 
[btn5 setBackgroundColor:[UIColor darkGrayColor]]; 
[btn5 setTitle:@"Map" forState:UIControlStateNormal]; 
[btn5 setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]; 
[btn5 setTag:4]; // Assign the button a "tag" so when our "click" event is called we know which button was pressed. 
[btn5 setSelected:true]; 


// Add my new buttons to the view 
[self.view addSubview:btn1]; 
[self.view addSubview:btn2]; 
[self.view addSubview:btn3]; 
[self.view addSubview:btn4]; 
[self.view addSubview:btn5]; 

// Setup event handlers so that the buttonClicked method will respond to the touch up inside event. 
[btn1 addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside]; 
[btn2 addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside]; 
[btn3 addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside]; 
[btn4 addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside]; 
[btn5 addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside]; 
} 
    - (void)buttonClicked:(id)sender 
    { 
int tagNum = [sender tag]; 
[self selectTab:tagNum]; 
} 

-(void)selectTab:(int)tabID 
{ 
switch(tabID) 
{ 
    case 0: 
     [btn1 setSelected:true]; 
     [btn2 setSelected:false]; 
     [btn3 setSelected:false]; 
     [btn4 setSelected:false]; 
     [btn5 setSelected:false]; 
     break; 
    case 1: 
     [btn1 setSelected:false]; 
     [btn2 setSelected:true]; 
     [btn3 setSelected:false]; 
     [btn4 setSelected:false]; 
     [btn5 setSelected:false]; 
     break; 
    case 2: 
     [btn1 setSelected:false]; 
     [btn2 setSelected:false]; 
     [btn3 setSelected:true]; 
     [btn4 setSelected:false]; 
     [btn5 setSelected:false]; 
     break; 
    case 3: 
     [btn1 setSelected:false]; 
     [btn2 setSelected:false]; 
     [btn3 setSelected:false]; 
     [btn4 setSelected:true]; 
     [btn5 setSelected:false]; 
     break; 
    case 4: 
     [btn1 setSelected:false]; 
     [btn2 setSelected:false]; 
     [btn3 setSelected:false]; 
     [btn4 setSelected:false]; 
     [btn5 setSelected:true]; 
     break; 
} 

    if (self.selectedIndex == tabID) { 
    UINavigationController *navController = (UINavigationController *)[self selectedViewController]; 
    [navController popToRootViewControllerAnimated:YES]; 
} else { 
    self.selectedIndex = tabID; 
} 


} 
- (void)viewDidLoad 
{ 
[super viewDidLoad]; 

[self hideExistingTabBar]; 
[self addCustomElements]; 

// Do any additional setup after loading the view. 

}

請Help.Thanks在前進！

Answer 1

你可以試試這個方法，這裏是鏈接和源代碼，在此您可以更改標籤

https://github.com/hollance/MHTabBarController

希望的位置，這可以幫助你。