51CTO苹果ios开发一年的工作笔记.doc

苹果ios开发一年的工作笔记 退回输入键盘??-?(BOOL) textFieldShouldReturn:(id)textField{ ? ? [textField? resignFirstResponder]; } ? CGRect CGRect frame = CGRectMake (origin.x, origin.y, size.width, size.height)；矩形 NSStringFromCGRect(someCG) 把CGRect结构转变为格式化字符串； CGRectFromString(aString) 由字符串恢复出矩形； CGRectInset(aRect) 创建较小或较大的矩形（中心点相同），＋较小? －较大CGRectIntersectsRect(rect1, rect2) 判断两矩形是否交叉，是否重叠 CGRectZero 高度和宽度为零的／位于（0，0）的矩形常量? CGPoint CGSize CGPoint aPoint = CGPointMake(x, y);? ? CGSize aSize = CGSizeMake(width, height); ? 设置透明度[myView setAlpha:value]; ? (0.0 value 1.0) 设置背景色 [myView setBackgroundColor:[UIColor redColor]];? (blackColor;darkGrayColor;lightGrayColor; whiteColor;grayColor; redColor; greenColor; blueColor; cyanColor;yellowColor; magentaColor;orangeColor;purpleColor; brownColor; clearColor; ) 自定义颜色UIColor *newColor = [[UIColor alloc] initWithRed:(float) green:(float) blue:(float) alpha:(float)];? ? ? 0.0~1.0 竖屏 320X480 横屏 480X320? ? 状态栏高 () 20 像素 ? 导航栏工具栏44像素隐藏状态栏[[UIApplication shareApplication] setStatusBarHidden: YES animated:NO] ? 横屏[[UIApplication shareApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeRight]. 屏幕变动检测 orientation == UIInterfaceOrientationLandscapeLeft 全屏window=[[UIWindow alloc] initWithFrame:[UIScreen mainScreen] bounds]; ? 自动适应父视图大小： aView.autoresizingSubviews = YES; aView.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight); ? ?定义按钮 UIButton *scaleUpButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; [scaleUpButton setTitle:@放 大 forState:UIControlStateNormal]; scaleUpButton.frame = CGRectMake(40, 420, 100, 40); [scaleUpButton addTarget:self action:@selector(scaleUp) forControlEvents:UIControlEventTouchUpInside]; ? 设置视图背景图片 UIImageView *aView; [aView setImage:[UIImage imageNamed:@”name.png”]]; view1.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@image1.png]]; ? 自定义UISlider的样式和滑块 我们使用的是UISlider的setMinimumTrackImage，和setMaximumTrackImage方法来定义图片的，这两个方法可以设置滑块左边和右边的图片