xxd

// 文档 https://www.dropbox.com/developers/reference/api#metadata
// api中有个earlier date http://forums.dropbox.com/topic.php?id=51560
// 例子 http://www.nanaimostudio.com/blog/2011/1/20/how-to-synchronize-your-app-data-using-dropbox-api.html

- (void)updateButtons {
    NSString* title = [[DBSession sharedSession] isLinked] ? @"Unlink Dropbox" : @"Link Dropbox";
    [linkDropboxBtn setTitle:title forState:UIControlStateDisabled];
    linkDropboxBtn.enabled = [[DBSession sharedSession] isLinked];
}

xxd

// 把 图片 写入 沙盒 
-(void)photoFile {
    
    //此处首先指定了图片存取路径（默认写到应用程序沙盒 中）
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);

    //并给文件起个文件名
    NSString *uniquePath=[[paths objectAtIndex:0] stringByAppendingPathComponent:@"pin"];
    BOOL blHave=[[NSFileManager defaultManager] fileExistsAtPath:uniquePath];
    if (blHave) {

xxd

-------------for iOS 5---------------
- (void)viewDidLoad
{
    [super viewDidLoad];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardDidChangeFrameNotification object:nil];
}

//dont forget to [[NSNotificationCenter defaultCenter] removeObserver:self]; on viewDidUnload 
- (void)viewDidUnload
{

xxd

- (void)keyboardWillShow:(NSNotification *)notification
{
	NSArray *appWindows = [[UIApplication sharedApplication] windows];
	
	UIWindow *keyboardWindow = [appWindows lastObject];
	UIView *keyboardView = [keyboardWindow.subviews objectAtIndex:0];
	keyboardView = [keyboardView.subviews objectAtIndex:0];
	keyboardView = [keyboardView.subviews objectAtIndex:0];
	keyboardView = [keyboardView.subviews objectAtIndex:0];
	

xxd

select b.name
from db_name.dbo.syscomments a,db_name.dbo.sysobjects b
where a.id=b.id and b.xtype='p' and a.text like '%字符串%';

xxd

//判断ios的版本
[[[UIDevice currentDevice] systemVersion] floatValue];

xxd

;; Basic Settting
(push "/usr/local/bin" exec-path)
(setq make-backup-files nil)
(setq auto-save-default nil)
(setq-default tab-width 2)
(setq-default indent-tabs-mode nil)
(setq inhibit-startup-message t)
(fset 'yes-or-no-p 'y-or-n-p)
(delete-selection-mode t)
(scroll-bar-mode -1)

xxd

//贴背景图
- (void)viewDidLoad
{
    [super viewDidLoad];
    
    [[self view]setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"bg_sand"]]]; 
}

//上边的导航栏 [sparrow]
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

xxd

//翻页效果
//经常看到iPhone的软件向上向下翻页面的效果，其实这个很简单，已经有封装好的相关方法处理。
//首先设置动画的相关参数
[UIView beginAnimati*****:@"Curl"context:nil];
[UIView setAnimationDuration:1.25]; //时间
[UIViewsetAnimationCurve:UIViewAnimationCurveEaseInOut];//速度
//然后设置动画的动作和目标视图
[UIViewsetAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.view cache:YES];
//参数UIViewAnimationTransitionCurlUp代表向上翻页，如果向下的话UIViewAnimationTransitionCurlDown.
//forView那把当前的视图传进去。

xxd

//Open database
NSArray *documentsPaths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory
                                                   , NSUserDomainMask 
                                                   , YES); 
NSString *databaseFilePath=[[documentsPaths objectAtIndex:0] stringByAppendingPathComponent:@"mydb"];

if (sqlite3_open([databaseFilePath UTF8String], &database)==SQLITE_OK) { 
    NSLog(@"open sqlite db ok."); 
}