[Obj-c] UNIX Timestamp 轉換成 NSDATE

Code

NSDateFormatter*dateFormat = [[NSDateFormatter alloc] init];

[dateFormat setDateFormat:@"YYYY-MM-dd HH:mm:ss"];

unsigned long long timestamp = [[[messages objectAtIndex:indexPath.row] objectForKey:@"timestamp"] longLongValue];
NSDate *date = [NSDate dateWithTimeIntervalSince1970:timestamp];
NSString *dateStr = [dateFormat stringFromDate:date];

[Obj-c] [UIText] AutoFocus & Show Keyboard(Textfield自動Focus)

Auto Focus

[textView becomeFirstResponder];

[Obj-c] [TableView] Cell Options

• Disable Cell HighLighting
• [cell setSelectionStyle:UITableViewCellSelectionStyleNone];
• cell.setSelectionStyle =  UITableViewCellSelectionStyleNone;
• Choose one method do you like.

[Obj-c] [UIImage] UIImage Load Image From URL(影像載入)

無法查看此摘要。請 按這裡查看文章。

[Obj-C] [TabBar] Display TabBarController on second view

Delegate.h

@interface AppDelegate : NSObject 
{
    UITabBarController *tabBarController;
}

@property (nonatomic, retain) IBOutlet UITabBarController *tabBarController;

Delegate.m

@synthesize tabBarController;

- (void)showTabBar
{
    [loginController.view removeFromSuperview];
    [self.window addSubview:tabBarController.view];
}

TestController.m

#import "Delegate.h"

- (IBAction)showTabBar
{
  UIApplication *app = [UIApplication sharedApplication];
  [(FindSoneAppDelegate *)app.delegate showTabBar];
}