1.ios的协议
ios的协议类似Java里的接口，起用法是一模一样的，目前只理解到这儿，以后有了新的理解在补充，基本用法如下:
1 @protocol BlueInterface 2 3 - (void) foundDevice:(CBPeripheral *) cbPeripheral; 4 - (void) disconnectDevicw:(CBPeripheral *) cbPeripheral; 5 6 @end
1 @interface BlueUtil : NSObject <CBCentralManagerDelegate,CBPeripheralDelegate> 2 { 3 CBCentralManager *m_blueManager; 4 } 5 6 + (BlueUtil *) getInstance; 7 8 @property (nonatomic,assign) id <BlueInterface> delegate; 9 @end
以上只是声明，其调用方法如下：
1 - (void) centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI 2 { 3 [delegate foundDevice:peripheral]; 4 } 5 6 - (void) centralManager:(CBCentralManager *)central didDisconnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error 7 { 8 [delegate disconnectDevicw:peripheral]; 9 }
实现该协议：
1 @interface ViewController : UITableViewController<BlueInterface>
2.ios多参数的定义：
1 - (id) initwithContent:(NSString *)_titile author:(NSString *)_author ids:(NSString *)_ids pullDate:(NSString *)_pullDate ;
3.ios键盘的弹出，在这里主要是做了界面适配，使用了约束，就写一下约束下键盘弹出的代码：
1 @interface TweetDetailViewControl : UIViewController <ASIHTTPRequestDelegate,ViewProtocol> 2 3 @property (weak, nonatomic) IBOutlet NSLayoutConstraint *bottomConstraint; 4 5 @end
这个是UITextView相对于UIView底部的约束
1 [[NSNotificationCenter defaultCenter] 2 addObserver:self 3 selector:@selector(keyboadWillShow:) 4 name:UIKeyboardWillShowNotification 5 object:nil]; 6 [[NSNotificationCenter defaultCenter] 7 addObserver:self 8 selector:@selector(keyboardWillHide:) 9 name:UIKeyboardWillHideNotification 10 object:nil];
注册键盘弹出隐藏的方法
1 - (void)keyboadWillShow:(NSNotification*)note 2 { 3 NSDictionary *info = [note userInfo]; 4 NSValue *kbFrame = [info objectForKey:UIKeyboardFrameEndUserInfoKey]; 5 6 NSTimeInterval animationDuration = [[info objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue]; 7 CGRect keyboardFrame = [kbFrame CGRectValue]; 8 9 CGRect finalKeyboardFrame = [self.view convertRect:keyboardFrame fromView:self.view.window]; 10 11 int kbHeight = finalKeyboardFrame.size.height; 12 13 int height = kbHeight + self.bottomConstraint.constant; 14 15 self.bottomConstraint.constant = height; 16 17 [UIView animateWithDuration:animationDuration animations:^{ 18 [self.view layoutIfNeeded]; 19 }]; 20 } 21 22 - (void)keyboardWillHide:(NSNotification*)note 23 { 24 NSDictionary *info = [note userInfo]; 25 26 NSTimeInterval animationDuration = [[info objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue]; 27 28 self.bottomConstraint.constant = 10; 29 30 [UIView animateWithDuration:animationDuration animations:^{ 31 [self.view layoutIfNeeded]; 32 }]; 33 }
4.UItextView设置边框：
1 m_textView.layer.borderColor = UIColor.grayColor.CGColor; 2 m_textView.layer.borderWidth = 1; 3 m_textView.layer.cornerRadius = 6; 4 m_textView.layer.masksToBounds = YES;
5.从storyboard加载ViewControl
1 UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:[NSBundle mainBundle]]; 2 3 UIViewControl *tweetDetail = [storyboard instantiateViewControllerWithIdentifier:@"TweetDetailViewControl"];
6.ios7以后UITableView被遮住一部分：
1 if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0) { 2 self.edgesForExtendedLayout = UIRectEdgeNone; 3 self.automaticallyAdjustsScrollViewInsets = NO; 4 }
8.ios单例：
1 + (BlueUtil *) getInstance 2 { 3 static BlueUtil *blueUtil = nil; 4 5 static dispatch_once_t onceToken; 6 dispatch_once(&onceToken, ^{ 7 blueUtil = [[self alloc] init]; 8 }); 9 10 11 return blueUtil; 12 }
9.ARC混编
在我们开发ios项目时一般默认启用了ARC模拟，但有时候我们使用一些开源的框架时，就要用到混编，我用到的有TBXML，ASIHttpRequest
在这里直接截一张图吧：
