iosapi总结

/////////////////
Tableview
////////////////
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {

    return 1; 几个大view

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

    return self.reloadlist.count; 几行cell

}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

 UITableViewCell* cell = nil;

    static NSString* identifier = @"cell";

    cell = [tableView dequeueReusableCellWithIdentifier:identifier];

    if (cell == nil) {

        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];

    }

}

-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath

{

    return 65; cell高度

}

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath

{

        if(indexPath.row==0)

    {         

        NSString *titileString = [NSString stringWithFormat:@"你点击了按钮%ld", indexPath.row];

        UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"提示" message:titileString delegate:self cancelButtonTitle:@"OK" otherButtonTitles: nil];

        alert.delegate = self;    

        [alert show];

    }   

}

- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex;这个方法是当View的隐藏动画结束的时候进行回调；
////////////////
翻页
////////////////

[self.navigationController pushViewController:second animated:YES]

///////////////////////
动画
////////////////////

 [UIView animateWithDuration:0.5 animations:^{

        self.underview.transform = CGAffineTransformMakeTranslation(transView.frame.origin.x, 0.0f);

    } completion:^(BOOL finished) {

    }];
//////////////
导航
//////////////

[self.navigationController setNavigationBarHidden:NO animated:animated];

[self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:@"[e-mail]"] forBarMetrics:UIBarMetricsDefault];//设置navigationbar的半透明

    self.navigationController.navigationBar.titleTextAttributes = @{UITextAttributeTextColor:[UIColor grayColor]};

self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc]initWithImage:[UIImage imageNamed:@"[e-mail]"] style:UIBarButtonItemStylePlain target:(self) action:@selector(clicked)];

[self.navigationController.navigationBar setTintColor:[UIColor whiteColor]];//设置navigationbar上左右按钮字体颜色  

////////////////
按钮
////////////////

UIButton* buttonview = [UIButton buttonWithType:UIButtonTypeCustom];

[buttonview setTitle:@"明星TOP20" forState:UIControlStateNormal];

    //[buttonview setImage:[UIImage imageNamed:@"lv4.png"] forState:UIControlStateSelected];

    self.navigationItem.titleView = buttonview;

  UIButton* btn = key;

            btn.selected = YES;

/////////////
尺寸
/////////////

CGRect r = [ UIScreen mainScreen ].applicationFrame; 求屏幕尺寸

 menuView.autoresizingMask = UIViewAutoresizingFlexibleWidth;自动调整自己的宽度，保证与superView左边和右边的距离不变。

[self.dropView removeFromSuperview];

if (![key isKindOfClass:[UIButton class]]) continue;

其他类

 NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",@"^[0-9]{6}$"];

            if([predicate evaluateWithObject:inputPwd])

                else

                NSLog(@"密码错误");

predicate = [NSPredicatepredicateWithFormat:@"engine.horsepower > 150"];

    NSArray *results;

    results = [carsfilteredArrayUsingPredicate: predicate];

            

/////////////////////////
textfield
/////////////////////////

autocapitalizationType	定义文本自动大小写样式。 UITextAutocapitalizationTypeNone关闭自动大写。
autocorrectionType	定义文本是否使用iPhone的自动更正功能。 UITextAutocorrectionTypeNO不使用该功能。

loginTextField.textAlignment = NSTextAlignmentCenter;文字对齐方式

//输入框中是否有个叉号，在什么时候显示，用于一次性删除输入框中的内容

  text.clearButtonMode = UITextFieldViewModeAlways; 

typedef enum {

    UITextFieldViewModeNever,　重不出现

    UITextFieldViewModeWhileEditing, 编辑时出现

    UITextFieldViewModeUnlessEditing,　除了编辑外都出现

    UITextFieldViewModeAlways 　一直出现

} UITextFieldViewMode;

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string

{

    NSString* toString = [textField.text stringByReplacingCharactersInRange:range withString:string];

    if ([toString length] > 6) {

        return NO;

    }