Tatsuro Ueda tatsuro-ueda

##Speed of segue between ViewControllers

Below code is of custom segue, and you can set duration of transition in code.

- (void)perform 
{
    UIViewController *src = (UIViewController *) self.sourceViewController;
    UIViewController *dst = (UIViewController *) self.destinationViewController;
    [UIView transitionFromView:src.view

toView:dst.view

##How to write text with angle on picture in objective c

Below code rotates the label

- (IBAction)rotate:(id)sender {
    CGContextRef context = UIGraphicsGetCurrentContext();
    [UIView beginAnimations:nil context:context];
    [UIView setAnimationDuration:0.5];
    [UIView setAnimationDelegate:self];

[UIView setAnimationDidStopSelector:@selector(endAnimation)];

##Change the position of UIBarButtonItem

I think present location setting is lick below:

Under this setting the length of left margin is adopted to landscape mode. So you have to set the length of right margin and let the botton put right end of navigation bar.

You would better set the setting as below:

##YouTube Video Api in JSON Format

Below code parse YouTube JSON to table view.

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = nil;

if (indexPath.row < [[_JSON valueForKeyPath:@"data.items.title"] count]) {

You can make it with TextView like below:

You can make this by only IB like below:

You don't have to edit storyboard to update old one to new one manually

At first, you should sub click on newer storyboad in navigation view.

Then you see menus and...

まず新しい方のストーリーボードをナビゲーションビュー上で右クリック。

出てきたメニューから・・・

[Open As] -> [Source Code]

delegateの指定忘れ
要素数を求めるのにsizeof(Array)/sizeof(Array[0])と割るのを忘れている
プロパティのプロパティにperformSegueで値を代入しようとして入らない
配列の初期化忘れ array = [NSArray array];
[NSString stringWithFormat:@"%@", count]; 正しくは%d
TableViewCellのIdentifierの指定忘れ
ViewControllerのつなぎ忘れ
アプリ名-Prefix.pchの名前変更忘れ→だめ
通知センターは4つ同じ名前を設定する
Push Notificationがうまくいかないときはプロジェクトを新規に作り、ファイルを移す

	##Press and hold to make Image move

	With below code, you have to push 3 seconds to move _imageView, and then the image begins moving, and when you release the button, the image stops.

	![ss](http://farm8.staticflickr.com/7264/7758110866_f2d3a47f04_o.png)

	- (IBAction)pushToMove:(id)sender {
	[self performSelector:@selector(move) withObject:nil afterDelay:3.0];
	}

	/*
	* 別スレッドを立てる
	*/

	NSOperationQueue *queue = [[NSOperationQueue alloc] init];
	[queue addOperationWithBlock:^{

	// 何かする

	}];