UISplitViewController

UISplitViewController类，只有在ipad中才可以使用。

ipad的屏幕比iphone大，所以在界面上，ipad比iphone多一个UISplitViewController，用来实现ipad在横屏时，分两栏显示所需要的界面，可以一边是目录一边是具体的内容[img]http://s14.sinaimg.cn/middle/4adf31eat9e1ad173199d&690[/img]
首先创建一个Row1Detail和RootViewController，其中RootViewController继承UITableViewController。同事创建两个相应的xib文件。


AppDelegate 中的代码如下：

@interface testsplitviewAppDelegate : NSObject <UIApplicationDelegate> {
    UIWindow *window;

UISplitViewController *splitView;
RootViewController *root;
Row1Detail *detail;

}

@property (nonatomic, retain) IBOutlet UIWindow *window;
@property (nonatomic, retain) IBOutlet UISplitViewController *splitView;
@property (nonatomic,retain) IBOutlet RootViewController *root;
@property (nonatomic, retain) IBOutlet Row1Detail *detail;

@end


实现类：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    

    // Override point for customization after app launch. 
    [self.window addSubview:splitView.view];
    [self.window makeKeyAndVisible];

return YES;
}

修改MainWindow.xib文件：添加UISplitViewController容器
[img]http://s5.sinaimg.cn/middle/4adf31eat9e1ae992b4a4&690[/img]
绑定的事件如下：
[img]http://s9.sinaimg.cn/middle/4adf31eat9e1aed63e078&690[/img]
RootViewController的代码如下：

@interface RootViewController : UITableViewController {
Row1Detail *detail;
}

@property (nonatomic,retain) IBOutlet Row1Detail *detail;

@end


实现代码：


#import "RootViewController.h"


@implementation RootViewController
@synthesize detail;

#pragma mark -
#pragma mark View lifecycle

- (void)viewDidLoad {
    [super viewDidLoad];
    self.clearsSelectionOnViewWillAppear = NO;
    self.contentSizeForViewInPopover = CGSizeMake(320.0, 600.0);
}


#pragma mark -
#pragma mark Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)aTableView {
    return 1;
}


- (NSInteger)tableView:(UITableView *)aTableView numberOfRowsInSection:(NSInteger)section {
    return 10;
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *CellIdentifier = @"CellIdentifier";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
        cell.accessoryType = UITableViewCellAccessoryNone;
    }

    cell.textLabel.text = [NSString stringWithFormat:@"Row %d", indexPath.row];
    return cell;
}


#pragma mark -
#pragma mark Table view delegate

- (void)tableView:(UITableView *)aTableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
detail.detailItem = [NSString stringWithFormat:@"Row %d", indexPath.row];
}





Row1Detail的代码


@interface Row1Detail : UIViewController <UISplitViewControllerDelegate>{
UILabel *Text1;

id detailItem;
}

@property (nonatomic,retain) IBOutlet UILabel *Text1;

@property (nonatomic, retain) id detailItem;

-(IBAction) click;

@end


实现代码如下：



#import "Row1Detail.h"


@implementation Row1Detail
@synthesize Text1;
@synthesize detailItem;


-(IBAction) click
{
NSLog(@"%@",Text1.text);

UIAlertView *alert=[[UIAlertView alloc] initWithTitle:@"标题" message:@"22" delegate:self cancelButtonTitle:@"关" otherButtonTitles:nil];
[alert show];

[alert release];

Text1.text=@"11111111111";
}

- (void)setDetailItem:(id)newDetailItem 
{
    if (detailItem != newDetailItem) {
        [detailItem release];
        detailItem = [newDetailItem retain];
Text1.text = [detailItem description];

    }

}

// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad 
{
    [super viewDidLoad];
}


- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Overriden to allow any orientation.
    return YES;
}