image.size.height);
[self.viewaddSubview:imageView]; [self performSelectorInBackground:@selector(detect:)
withObject:nil];}detect 为自己定义的方法，编辑选取照片后要实现的效果取消选择：
-(void)imagePickerControllerDIdCancel:(UIImagePickerController*)picker
{ [picker dismissModalViewControllerAnimated:YES];}
6.跳
到
下
个
ViewnextWebView
=
[[WEBViewController
alloc]
initWithNibName:@"WEBViewController"
bundle:nil];[self
presentModalViewController:nextWebView animated:YES];
7.创建一个 UIBarButton 右边按钮 UIBarButtonItem *rightButton = [[UIBarButtonItem alloc]
initWithTitle:@"
右
边
"
style:UIBarButtonItemStyleDone
target:self
action:@selector(clickRightButton)];[self.navigationItem setRightBarButtonItem:rightButton];
8.设置 navigationBar 隐藏 self.navigationController.navigationBarHidden = YES;//
9.UIlabel 多 行 文 字 自 动 换 行 （ 自 动 折 行 ） UIView *footerView = [[UIView
alloc]initWithFrame:CGRectMake(10, 100, 300, 180)];UILabel *label = [[UILabel
alloc]initWithFrame:CGRectMake(10, 100, 300, 150)];label.text = @"Hello world! Hello world!
Hello world! Hello world! Hello world! Hello world! Hello world! Hello world!Hello world!
Hello world! Hello world! Hello world! Hello world! Helloworld!";// 背 景 颜 色 为 红 色
label.backgroundColor = [UIColor redColor];//设置字体颜色为白色 label.textColor = [UIColor
whiteColor];// 文 字 居 中 显 示 label.textAlignment = UITextAlignmentCenter;// 自 动 折 行 设 置
label.lineBreakMode = UILineBreakModeWordWrap;label.numberOfLines = 0; 10. 代 码 生 成
ButtonCGRect frame = CGRectMake(0, 400, 72.0, 37.0);UIButton *button = [UIButton
buttonWithType:UIButtonTypeRoundedRect];button.frame = frame;[button setTitle:@"新添加的
按
钮
"
forState:
UIControlStateNormal];button.backgroundColor
=
[UIColor
clearColor];button.tag
=
2000;[button
addTarget:self
action:@selector(buttonClicked:)
forControlEvents:UIControlEventTouchUpInside];[self.view addSubview:button];
11.让某个控件在 View 的中心位置显示：（某个控件，比如 label，View）label.center =
self.view.center；
12.自
定
义
text
各
种
效
果
：
cell.backgroundColor
=
[UIColorscrollViewTexturedBackgroundColor];
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