ios版实况8视频6怎么操作技巧

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实况足球手游拖拽技巧分享 拖拽操作说明
来源:游民星空[整理]
作者:修凡客
编辑:修凡客
大小:1.90 GB类型:体育
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  实况足球手游中拖拽也是进攻中的一种技巧,本次就为大家带来了实况足球手游拖拽技巧分享,包括拖拽操作说明,想尝试这个技巧的朋友可以参考,希望大家喜欢。
  朝正前方滑动两次方向。这个动作我从玩足球游戏最早开始就很少使用,或者说踢球风格就不是这样。但是它的实用性也看在眼里,做出动作后会有个轻微的变向,所以当于对方后卫在边路僵持的时候可以利用它突破。其它使用环境较苛刻,不过禁区被平行防守时也能起到虚晃的作用。推荐指数:★★★☆☆
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游民星空联运游戏10个IOS小技巧,让你真正体验真正世界顶级的手机操作系统OC&&IOS开发小技巧总结
1.数组遍历的三种方式
2. 使用 [obj class]属性获得类名成,利用类名称创建对象
3.给一个UIImageView 添加一个动画数组,可以设置动画时间,循环次数
4.利用[UIImage animatedImageNamed:@&& duration:]可以达到蝴蝶翩翩飞过,的效果,不过要开一个定时器,才能让图片横向的移动
5. 给Button设置背景图片,并且button的大小跟图片的大小一样大
6.用addViewController做类似于导航控制器的作用
8.给导航栏添加图片
9.生成二维码图片(包含链接),并且添加视图上
10.给一个View设置层的边框颜色,边框宽度,变的圆角,
11.给一个Lable添加NSAttributeString,包含设置字体,字的间距,字体的颜色,字体的大小
12获得改字符串的大小
13.一个视图控制器退出的时候,要隐藏的底部的导航栏
14.创建前后颜色不同的字符串
15.给UITableView去掉分割线
16.给某个View的下方添加波浪线
17.获得IP地址及Mac地址
18.创建一个UIImageView,并且设置渐变色
19.设置UITableView的某个cell不可选
21.隐藏和现实导航栏,只管本视图控制器的navagationController的显示和隐藏,不影响其他的视图控制器
22.原生的给设置tabBarItem设置图片,字体,以及设置,文字和图片之间距离
23.给字符串添加下划线
24.给导航栏的标题设置文字的颜色,字体的大小
25,断网的判断及处理,要包含Reachability.h的头文件
25,断网的判断及处理,要包含Reachability.h的头文件
26.动态将UITableViewCell滚动到指定的cell
27.一段文字设置行间距
28.签到动画
29.给城市排序按照拼音
30.发邮件,打电话,发短信,打开网址
32.判断手机网络运营商
33 NSData同步请求网络数据
34view和window之间坐标转换
35.ViewController的生命周期
36程序启动原理
37.UITableViewCell 文字位置调整
38.ios带圆角图片的拉伸
39自定义UINavigtion
1.数组遍历的三种方式(for ,for in ,枚举器)
int main(int argc, const char * argv[])
@autoreleasepool {
//创建一个Car类,两个属性:名字,颜色
//创建3个对象,加到数组里
//输出数组
Car *car1 = [[Car alloc] initWithName:@&宝马汽车& andColor:'R'];
Car *car2 = [[Car alloc] initWithName:@&奔驰汽车& andColor:'B'];
Car *car3 = [[Car alloc] initWithName:@&奥迪汽车& andColor:'W'];
NSArray *array = [NSArray arrayWithObjects:car1,car2,car3, nil];
//循环遍历数组
[[array objectAtIndex:0] setName:@&拖拉机&];
for(int i = 0; i & [array count]; i++)
NSLog(@&%@&,[array objectAtIndex:i]);
//快速遍历数组
//从前往后 完整遍历
//数组中有多种对象的时候用id
//可变数组的时候,并且要改变数组长度的时候不要用
for(Car *obj in array)
NSLog(@&%@&,obj);
//枚举器用来遍历数组
//- (NSEnumerator *)objectE
//1 2 3 4 5 6
//把数组的所有元素依次存放到枚举器
NSEnumerator *enumerator = [array objectEnumerator];
enumerator = [array reverseObjectEnumerator];
while(obj = [enumerator nextObject]){
NSLog(@&%@&,obj);
while(obj = [enumerator nextObject])
NSLog(@&%@&,obj);
枚举器block
[moduleArray enumerateObjectsUsingBlock:^(id
_Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
2. 使用 [obj class]属性获得类名成,利用类名称创建对象
#import &mybuton.h&
int main(int argc, const char * argv[])
@autoreleasepool {
mybuton*btn=[mybuton creatBtn:SJX];
[btn showType];
typedef enum
@interface mybuton : NSObject
-(void)showT
+(instancetype)creatBtn:(BtnType)
#import &mybuton.h&
#import&mybuton_SJX.h&
#import &mybuton_YX.h&
@implementation mybuton
-(void)showType
NSLog(@&我是一个按钮&);
+(instancetype)creatBtn:(BtnType)type
Class myclass[]={[mybuton_SJX class],[mybuton_YX class]};
mybuton*btn=[[myclass[type]alloc]init];
#import &mybuton.h&
@interface mybuton_SJX : mybuton
#import &mybuton_SJX.h&
@implementation mybuton_SJX
-(void)showType{
NSLog(@&我是一个三角形按钮&);
3.给一个UIImageView 添加一个动画数组,可以设置动画时间,循环次数
images = [NSArray arrayWithObjects:
[UIImage imageNamed:@&1.jpg&],
[UIImage imageNamed:@&2.jpg&],
[UIImage imageNamed:@&3.jpg&],
[UIImage imageNamed:@&4.jpg&],
[UIImage imageNamed:@&5.jpg&], nil];
// 设置iv控件需要动画显示的图片为images集合元素
self.iv.animationImages =
// 设置动画持续时间
self.iv.animationDuration = 12;
// 设置动画重复次数
self.iv.animationRepeatCount = 999999;
// 让iv控件开始播放动画
[self.iv startAnimating];
可以每隔2.4s动画,更新图片,循环99999次
4.利用[UIImage animatedImageNamed:@&& duration:]可以达到蝴蝶翩翩飞过,的效果,不过要开一个定时器,才能让图片横向的移动
// 定义显示图片的UIImageView控件
UIImageView*
// 定义定时器
- (void)viewDidLoad
[super viewDidLoad];
// 设置背景色为白色
self.view.backgroundColor = [UIColor whiteColor];
// 创建UIImageView控件
iv = [[UIImageView alloc]
initWithFrame:CGRectMake(0 , 30 , 41 , 43)];
// 使用UIImageView加载文件名以butterfly_f开头的多张图片
iv.image = [UIImage animatedImageNamed:@&butterfly_f&
duration:0.6];
// 将UIImageView添加到系统界面上
[self.view addSubview: iv];
// 启动NSTimer定时器来改变UIImageView的位置
timer = [NSTimer scheduledTimerWithTimeInterval:0.1
target:self selector:@selector(changePos)
userInfo:nil repeats:YES];
- (void) changePos
CGPoint curPos = iv.
// 计算一个-4~5之间随机数
int y = arc4random() % 10 - 4;
// 当curPos的x坐标已经超过了屏幕的宽度
if(curPos.x & [UIScreen mainScreen].bounds.size.width)
// 控制蝴蝶再次从屏幕左侧开始移动
iv.center = CGPointMake(0, 30);
// 通过修改iv的center属性来改变iv控件的位置
iv.center = CGPointMake(curPos.x + 4, curPos.y + y);
5. 给Button设置背景图片,并且button的大小跟图片的大小一样大
UIImage* backImg = [UIImage imageNamed:@&back_white&];
UIButton* btn = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, backImg.size.width, backImg.size.height)];
[btn addTarget:self action:@selector(backClick) forControlEvents:UIControlEventTouchUpInside];
[btn setImage:backImg forState:UIControlStateNormal];
//[btn setImage:backImg forState:UIControlStateHighlighted];
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:btn];
6.用addViewController做类似于导航控制器的作用
ResultViewController *result = [[ResultViewController alloc] initWithNibName:@&ResultViewController& bundle:nil];
[self.parentViewController addChildViewController:result];
[self.parentViewController.view addSubview:result.view];
result.view.frame = CGRectMake(WIDTH, 0, WIDTH, HEIGHT);
animateWithDuration:0.3
options:UIViewAnimationOptionCurveEaseInOut
animations:^{
CATransition *animation = [CATransition animation];
[animation setDuration:0.3];
[animation setType:kCATransitionPush];
[animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
[animation setSubtype:kCATransitionFromRight];
[self.navigationController.view.layer addAnimation:animation forKey:nil];
result.view.frame = CGRectMake(0, 0, WIDTH, HEIGHT);
completion:^(BOOL finished) {
如果是飞行模式,手机系统会弹出是否停用飞行模式
如果没有卡,也会提示
如果有卡,并且不是飞行模式,程序会自动进入后台,前台会弹出拨号的界面
#pragma mark - 打电话
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{
NSLog(@&打电话&);
if (buttonIndex==0) {
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:@&tel://%@&,@&&]]];
8.给导航栏添加图片
UIImageView *imageView=[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, ViewWidth*0.3, 22)];
imageView.image=[UIImage imageNamed:@&tapmoney&];
self.navigationItem.titleView=imageV
9.生成二维码图片(包含链接),并且添加视图上
前提是要导入ZBar.h和QRCodeGenerator.h头文件
UIImageView *twoDimensionCode=[WNController createImageViewWithFrame:CGRectMake(ViewWidth*0.2, ViewHeight*0.02, ViewWidth*0.5, ViewHeight*0.20) ImageName:nil];
twoDimensionCode.image=[QRCodeGenerator qrImageForString:@&www.baidu.com& imageSize:400];
[view addSubview:twoDimensionCode];
10.给一个View设置层的边框颜色,边框宽度,变的圆角,
UIView *view=[[UIView alloc]initWithFrame:CGRectMake(ViewWidth*0.05, 10, ViewWidth*0.9, ViewHeight*0.4)];
view.layer.borderColor=[[UIColor blackColor]CGColor];
view.layer.borderWidth=0.5;
view.layer.cornerRadius=5;
view.layer.masksToBounds=YES;
[self.view addSubview:view];
11.给一个Lable添加NSAttributeString,包含设置字体,字的间距,字体的颜色,字体的大小
NSAttributedString *attriStrTodayEarn =[[NSAttributedString alloc] initWithString:@&Today's earn& attributes:@{NSForegroundColorAttributeName : [UIColor whiteColor],NSKernAttributeName : @(-1.3f),NSFontAttributeName:[UIFont fontWithName:@&Gill Sans& size:1.8*NormalFont]}];
[todayEarn setAttributedText:attriStrTodayEarn];
12获得改字符串的大小
CGSize size=[middleLabel.text boundingRectWithSize:CGSizeMake(ViewWidth*0.7,NormalFont*3) options:NSStringDrawingUsesLineFragmentOrigin|NSStringDrawingUsesFontLeading attributes:@{NSFontAttributeName:middleLabel.font} context:nil].
13.一个视图控制器退出的时候,要隐藏系统的底部的导航栏
.hidesBottomBarWhenPushed=YES;
14.创建前后颜色不同的字符串
- (NSMutableAttributedString *)createAttributeStringWithStr:(NSString *)foreString withStr:(NSString *)afterString
NSString * joinstr = foreS
NSString * text = afterS
NSString *jointext = [NSString stringWithFormat:@&%@%@&,joinstr,text];
NSDictionary *textDic = @{NSForegroundColorAttributeName:[UIColor colorWithRed:0.13f green:0.65f blue:0.00f alpha:1.00f],NSFontAttributeName:[UIFont systemFontOfSize:NormalFont ]};
NSMutableAttributedString *attributeString = [[NSMutableAttributedString alloc]initWithString:jointext];
[attributeString addAttributes:textDic range:NSMakeRange(joinstr.length, text.length)];
return attributeS
//本质是NSMutableAttributedString 给一定范围的字符做颜色属性的改变
15.给UITableView去掉分割线
_tableView.separatorStyle=UITableViewCellSeparatorStyleN
cell.selectionStyle=UITableViewCellSelectionStyleN
16.给某个View的下方添加波浪线
-(void)drawRect:(CGRect)rect{
CGRect frame=self.
CGFloat height=frame.size.
// CGFloat width =frame.size.
UIColor *color = [UIColor whiteColor];
[color set]; //设置线条颜
UIBezierPath* aPath = [UIBezierPath bezierPath];
aPath.lineWidth = 0.5;
aPath.lineCapStyle = kCGLineCapR //线条拐角
aPath.lineJoinStyle = kCGLineCapR //终点处理
aPath.lineCapStyle = kCGLineCapR //线条拐角
aPath.lineJoinStyle = kCGLineCapR //终点处理
for (int i=0; i&50; ++i) {
[aPath moveToPoint:CGPointMake(0+frame.size.width/50*i, height)];
[aPath addQuadCurveToPoint:CGPointMake(frame.size.width/50*(i+1), height) controlPoint:CGPointMake(frame.size.width/100+frame.size.width/50*i, height-5)];
[aPath fill];
17.获得IP地址及Mac地址
前提要包含
+(NSString *)getMACAddress{
int mib[6];
unsigned char *
struct if_msghdr *
struct sockaddr_dl *
mib[0] = CTL_NET;
mib[1] = AF_ROUTE;
mib[2] = 0;
mib[3] = AF_LINK;
mib[4] = NET_RT_IFLIST;
if ((mib[5] = if_nametoindex(&en0&)) == 0) {
printf(&Error: if_nametoindex error/n&);
return NULL;
if (sysctl(mib, 6, NULL, &len, NULL, 0) & 0) {
printf(&Error: sysctl, take 1/n&);
return NULL;
if ((buf = malloc(len)) == NULL) {
printf(&Could not allocate memory. error!/n&);
return NULL;
if (sysctl(mib, 6, buf, &len, NULL, 0) & 0) {
printf(&Error: sysctl, take 2&);
return NULL;
ifm = (struct if_msghdr *)
sdl = (struct sockaddr_dl *)(ifm + 1);
ptr = (unsigned char *)LLADDR(sdl);
NSString *outstring = [NSString stringWithFormat:@&%02x:%02x:%02x:%02x:%02x:%02x&, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), *(ptr+5)];
free(buf);
return [outstring uppercaseString];
+(NSString *)getIPAddress{
NSString *address = @&error&;
struct ifaddrs *interfaces = NULL;
struct ifaddrs *temp_addr = NULL;
int success = 0;
// retrieve the current interfaces - returns 0 on success
success = getifaddrs(&interfaces);
if (success == 0) {
//Loop through linked list of interfaces
temp_addr =
while(temp_addr != NULL) {
if(temp_addr-&ifa_addr-&sa_family == AF_INET) {
// Check if interface is en0 which is the wifi connection on the iPhone
if([[NSString stringWithUTF8String:temp_addr-&ifa_name] isEqualToString:@&en0&]) {
// Get NSString from C String
address = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr-&ifa_addr)-&sin_addr)];
temp_addr = temp_addr-&ifa_
// Free memory
freeifaddrs(interfaces);
18.创建一个UIImageView,并且设置渐变色
+(UIImageView *)progressiveImageframe:(CGRect)frame beginColor:(CGFloat *)Bcomponent endColor:(CGFloat*)Ecomponent {
UIImageView *imageView=[[UIImageView alloc]initWithFrame:frame];
UIGraphicsBeginImageContext(imageView.frame.size);
[imageView.image drawInRect:CGRectMake(0, 0, imageView.frame.size.width, imageView.frame.size.height)];
CGContextSetLineCap(UIGraphicsGetCurrentContext(), kCGLineCapRound);
//设置线条终点形状
CGContextRef context =UIGraphicsGetCurrentContext();
CGColorSpaceRef colorSpaceRef = CGColorSpaceCreateDeviceRGB();
// 创建起点颜色
(CGFloat[]){0, 0.61, 0.81, 1}
(CGFloat[]){0.87, 0.61, 0, 1}
CGColorRef beginColor = CGColorCreate(colorSpaceRef,Bcomponent );
// 创建终点颜色
CGColorRef endColor = CGColorCreate(colorSpaceRef, Ecomponent);
// 创建颜色数组
CFArrayRef colorArray = CFArrayCreate(kCFAllocatorDefault, (const void*[]){beginColor, endColor}, 2, nil);
// 创建渐变对象
CGGradientRef gradientRef = CGGradientCreateWithColors(colorSpaceRef, colorArray, (CGFloat[]){
// 对应起点颜色位置
1.0f // 对应终点颜色位置
// 释放颜色数组
CFRelease(colorArray);
// 释放起点和终点颜色
CGColorRelease(beginColor);
CGColorRelease(endColor);
// 释放色彩空间
CGColorSpaceRelease(colorSpaceRef);
CGContextDrawLinearGradient(context, gradientRef, CGPointMake(0, 0), CGPointMake(0, frame.size.height), 0);
CGGradientRelease(gradientRef);
imageView.image=UIGraphicsGetImageFromCurrentImageContext();
return imageV
19.设置UITableView的某个cell不可选
为了彻底避免UITableViewCell选择,让UITableViewDelegate实现。如果你不希望选中行,从那个函数可以返回nil
- (NSIndexPath *)tableView:(UITableView *)tv willSelectRowAtIndexPath:(NSIndexPath *)path
//根据 NSIndexPath判定行是否可选。
if (rowIsSelectable)
20.自定义一个CustomView给一个UIImageView添加一个点击的block
@interface CustomImageView : UIImageView
@property(nonatomic,copy)void(^touchImage)();
#import &CustomImageView.h&
@implementation CustomImageView
- (id)initWithFrame:(CGRect)frame
self = [super initWithFrame:frame];
if (self) {
self.userInteractionEnabled=YES;
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
if (self.touchImage) {
self.touchImage();
21.隐藏和现实导航栏,只管本视图控制器的navagationController的显示和隐藏,不影响其他的视图控制器
-(void)viewWillAppear:(BOOL)animated{
[super viewDidAppear:YES];
self.navigationController.navigationBarHidden=YES;
-(void)viewWillDisappear:(BOOL)animated{
self.navigationController.navigationBarHidden=NO;
22.原生的给设置tabBarItem设置图片,字体,以及设置,文字和图片之间距离
nc.tabBarItem = [[UITabBarItem alloc]initWithTitle:titles[i] image:[[UIImage imageNamed:imageArr[i]] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] selectedImage:[[UIImage imageNamed:selectedImageArr[i]] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
[nc.tabBarItem setTitlePositionAdjustment:UIOffsetMake(0, -4)];
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor lightGrayColor], NSForegroundColorAttributeName,[UIFont systemFontOfSize:SmallFont*0.9] ,NSFontAttributeName,nil] forState:UIControlStateNormal];
[[UITabBarItem appearance] setTitleTextAttributes:
[NSDictionary dictionaryWithObjectsAndKeys:[UIColor orangeColor],NSForegroundColorAttributeName, nil]forState:UIControlStateSelected];
23.给字符串添加下划线
UILabel * standardF =
[self createSingleLabelWithFrame:CGRectMake(space*4, CGRectGetMaxY(standard.frame)+space, ViewWidth-space*4, space*3) withAttributedString:@&亚马逊礼品卡使用协议&];
[self.view addSubview:standardF];
UILabel * standardW =
[self createSingleLabelWithFrame:CGRectMake(space*4, CGRectGetMaxY(standardF.frame), ViewWidth-space*4, space*3) withAttributedString: @&个人资料隐私及保护协议&];
[self.view addSubview:standardW];
- (UILabel *)createSingleLabelWithFrame:(CGRect)frame withAttributedString:(NSString *)text
NSMutableAttributedString *attributedStr = [[NSMutableAttributedString alloc]initWithString:text];
[attributedStr addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInteger:NSUnderlineStyleSingle] range:NSMakeRange(0, attributedStr.length)];
UILabel *label = [WNController createLabelWithFrame:frame Font:NormalFont Text:nil];
label.attributedText = attributedS
label.textColor = [UIColor orangeColor];
24.给导航栏的标题设置文字的颜色,字体的大小
self.title = @&检查新版本&;
[[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:@&topback.png&] forBarMetrics:UIBarMetricsDefault];
NSDictionary *navbarTitleTextAttributes = [NSDictionary dictionaryWithObjectsAndKeys:KDefaultTitleViewTitleColor, NSForegroundColorAttributeName,
KDefaultTitleViewTitleFont, NSFontAttributeName, nil];
[[UINavigationBar appearance] setTitleTextAttributes:navbarTitleTextAttributes]
25,断网的判断及处理,要包含Reachability.h的头文件
Reachability *reach = [Reachability reachabilityWithHostName:@&www.baidu.com&];
NetworkStatus status = [reach currentReachabilityStatus];
if (status == NotReachable)
//没有连接到网络就弹出提实况
[[[UIAlertView alloc] initWithTitle:@&提示& message:@&网络连接失败,请稍后再试!& delegate:nil cancelButtonTitle:@&确认& otherButtonTitles:nil, nil] show];
26.动态将UITableViewCell滚动到指定的cell
[_tableViewscrollToRowAtIndexPath:[NSIndexPathindexPathForRow:_messageArray.count-1inSection:0]atScrollPosition:UITableViewScrollPositionNoneanimated:YES];
27.一段文字设置行间距
commentLabel.textColor=UIColorFromRGB(0x.0);
//设置行间距
NSMutableAttributedString*attributedString = [[NSMutableAttributedStringalloc]initWithString:commentLabel.text];
NSMutableParagraphStyle*paragraphStyle = [[NSMutableParagraphStylealloc]init];
[paragraphStylesetLineSpacing:lineSpace];
[attributedStringaddAttribute:NSParagraphStyleAttributeNamevalue:paragraphStylerange:NSMakeRange(0, [attributedStringlength])];
//设置昵称颜色为橘黄色
28.签到动画
-(void)reallyStartAnimation
if ( !self.isCheckingIn )
self.checkImageView.image = [UIImage imageNamed:@&checkin-2&];
[self.checkBtn setTitle:@&签到中..& forState:UIControlStateNormal];
[self startAnimation];
self.isCheckingIn = YES;
-(void) startAnimation
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.01];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(endAnimation)];
self.checkImageView.transform = CGAffineTransformMakeRotation(self.angle * (M_PI / 180.0f));
[UIView commitAnimations];
-(void)endAnimation
self.angle += 10;
[self startAnimation];
29.给城市排序安装拼音
-(void)buildUpFirstLetterDictionary
self.citySortedCommunityDic = [[NSMutableDictionary alloc] initWithCapacity:16];
self.citySortedHeaderTitleIndexDic = [[NSMutableDictionary alloc] initWithCapacity:16];
for (City* city in self.cityDataSource.citys)
NSMutableArray* originalCommunityArray = [[NSMutableArray alloc] initWithCapacity:16];
for ( Community* community in city.communitys.communitys )
[originalCommunityArray addObject:community.name];
NSDictionary* dic = [originalCommunityArray sortedArrayUsingFirstLetter];
[self.citySortedCommunityDic setObject:dic forKey:city.name];
//因为字典的无序,将所有的key取出来之后,重新输出
NSArray *keys = [[dic allKeys] sortedArrayUsingSelector:@selector(compare:)];
[self.citySortedHeaderTitleIndexDic setObject:keys forKey:city.name];
#import &NSArray+FirstLetterArray.h&
#import &pinyin.h&
@implementation NSArray (FirstLetterArray)
- (NSDictionary *)sortedArrayUsingFirstLetter
NSMutableDictionary *mutDic = [NSMutableDictionary dictionary];
const char *letterPoint = NULL;
NSString *firstLetter =
for (NSString *str in self) {
//检查 str 是不是 NSString 类型
if (![str isKindOfClass:[NSString class]]) {
assert(@&object in array is not NSString&);
#ifdef DEBUG
NSLog(@&object in array is not NSString, it's [%@]&, NSStringFromClass([str class]));
letterPoint = [str UTF8String];
//如果开头不是大小写字母则读取 首字符
if (!(*letterPoint & 'a' && *letterPoint & 'z') &&
!(*letterPoint & 'A' && *letterPoint & 'Z')) {
//汉字或其它字符
char letter = pinyinFirstLetter([str characterAtIndex:0]);
letterPoint = &
//首字母转成大写
firstLetter = [[NSString stringWithFormat:@&%c&, *letterPoint] uppercaseString];
//首字母所对应的 姓名列表
NSMutableArray *mutArray = [mutDic objectForKey:firstLetter];
if (mutArray == nil) {
mutArray = [NSMutableArray array];
[mutDic setObject:mutArray forKey:firstLetter];
[mutArray addObject:str];
//字典是无序的,数组是有序的,
//将数组排序
for (NSString *key in [mutDic allKeys]) {
NSArray *nameArray = [[mutDic objectForKey:key] sortedArrayUsingSelector:@selector(compare:)];
[mutDic setValue:nameArray forKey:key];
return mutD
30.发邮件,打电话,发短信,打开网址
30.1、调用 自带mail
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@&mailto://&]];
30.2、调用 电话phone
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@&tel://&]];
iOS应用内拨打电话结束后返回应用
一般在应用中拨打电话的方式是:
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@&tel://&]];
使用这种方式拨打电话时,当用户结束通话后,iphone界面会停留在电话界面。
用如下方式,可以使得用户结束通话后自动返回到应用:
UIWebView*callWebview =[[UIWebView alloc] init];
NSURL *telURL =[NSURL URLWithString:@&tel:10086&];// 貌似tel:// 或者 tel: 都行
[callWebview loadRequest:[NSURLRequest requestWithURL:telURL]];
//记得添加到view上
[self.view addSubview:callWebview];
 还有一种私有方法:(可能不能通过审核)
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@&telprompt://10086&]];
30.3、调用 SMS
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@&sms://800888&]];
30.4、调用自带
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@&http://www.hzlzh.com&]];
调用phone可以传递号码,调用SMS 只能设定号码,不能初始化SMS内容。
若需要传递内容可以做如下操作:
加入:MessageUI.framework
实现代理:MFMessageComposeViewControllerDelegate
调用sendSMS函数
//内容,收件人列表
- (void)sendSMS:(NSString *)bodyOfMessage recipientList:(NSArray *)recipients
MFMessageComposeViewController *controller = [[[MFMessageComposeViewController alloc] init] autorelease];
if([MFMessageComposeViewController canSendText])
controller.body = bodyOfM
controller.recipients =
controller.messageComposeDelegate =
[self presentModalViewController:controller animated:YES];
// 处理发送完的响应结果
- (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result
[self dismissModalViewControllerAnimated:YES];
if (result == MessageComposeResultCancelled)
NSLog(@&Message cancelled&)
else if (result == MessageComposeResultSent)
NSLog(@&Message sent&)
NSLog(@&Message failed&)
默认发送短信的界面为英文的,解决办法为:
在.xib 中的Localization添加一組chinese就ok了
if(![[NSUserDefaults standardUserDefaults] boolForKey:@&firstStart&]){
[[NSUserDefaults standardUserDefaults] setBool:YES forKey:@&firstStart&];
NSLog(@&第一次启动&);
NSLog(@&不是第一次启动&);
32.判断手机运营商
- (BOOL)checkChinaMobile
BOOL ret = NO;
CTTelephonyNetworkInfo *info = [[CTTelephonyNetworkInfo alloc] init];
CTCarrier *carrier = [info subscriberCellularProvider];
if (carrier == nil)
[info release];
return NO;
NSString *code = [carrier mobileNetworkCode];
if (code == nil)
[info release];
return NO;
if ([code isEqualToString:@&00&] || [code isEqualToString:@&02&] || [code isEqualToString:@&07&])
ret = YES;
[info release];
其它网络判断参考下表:
Bands (MHz)
References and notes
Operational
GSM 900 / GSM 1800 / TD-SCDMA 1880 / TD-SCDMA 2010
Operational
GSM 900 / GSM 1800 / UMTS 2100
CDMA network sold to, WCDMA commercial trial started in May 2009 and in full commercial operation as of October 2009.
Operational
GSM 900 / GSM 1800 / TD-SCDMA 1880 / TD-SCDMA 2010
Operational
CDMA / CDMA
Operational
Operational
GSM 900 / GSM 1800 / UMTS 2100
Operational
GSM 900 / GSM 1800 / TD-SCDMA 1880 / TD-SCDMA 010
Operational
33 NSData同步请求网络数据
+ (id)dataWithContentsOfURL:(NSURL *)
+ (id)dataWithContentsOfURL:(NSURL *)url options:(NSDataReadingOptions)readOptionsMask error:(NSError **)errorP
其中NSDataReadingOptions可以附加一个参数。NSDataReadingMappedIfSaf
e参数。使用这个参数后,iOS就不会把整个文件全部读取的内存了,而是将文件映射到进程的地址空间中,这么做并不会占用实际内存。这样就可以解决内存满的问题。
url包含中文时,直接使用会出错,需要如下转换
NSURL *url = [NSURL URLWithString:[self.curTaskData.urlstringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
34view和window之间坐标转换
在某UIView子函数内部,将centerPoint从子view坐标转换成appDelegate.window内的坐标:
CGPointcenterPoint = [selfgetCenterPointByCurPressPoint:pressPointer];
centerPoint = [selfconvertPoint:centerPointtoView:appDelegate.window];
35.ViewController的生命周期
loadView和viewDidLoad的区别就是,loadView时view还没有生成,viewDidLoad时,view已经生成了,loadView只会被调用一次,而viewDidLoad可能会被调用多次(View可能会被多次加载),当view被添加到其他view中之前,会调用viewWillAppear,之后会调用viewDidAppear。当view从其他view中移除之前,调用viewWillDisAppear,移除之后会调用viewDidDisappear。当view不再使用时,受到内存警告时,ViewController会将view释放并将其指向为nil。
ViewController的生命周期中各方法执行流程如下:
init&&loadView&&viewDidLoad&&viewWillApper&&viewDidApper&&viewWillDisapper&&viewDidDisapper&&viewWillUnload-&viewDidUnload&&dealloc
36程序启动原理
UIApplication和delegate
所有的移动操作系统都有个致命的缺点:app很容易受到打扰.比如一个来电或者锁屏会导致app进入后台甚至被终止;
还有很多其他类似的情况会导致app受到干扰,在app受到干扰时,会产生一些系统事件,这时UIApplication会通知它的delegate对象,让delegate来处理这些系统事件.
delegate可处理的事件包括:
1& 应用程序的生命周期事件(如程序的启动和关闭);
2& 系统事件(如来电);
3& 内存警告...
UIWindow的获得:
[UIApplicationsharedApplication].windows
在本应用中打开的UIWindow列表,这样就可以接触应用中的任何一个UIView对象(平时输入文字弹出的键盘,就处在一个新的UIWindow中).
[UIApplicationsharedApplication].keyWindow
用来接收键盘以及非触摸类的消息事件的UIWindow,而且程序中每时每刻只能有一个UIWindow是keyWindow.如果某个UIWindow内部的文本框不能输入文字,可能是因为这个UIWindow不是keyWindow.
view.window
获得某个UIView所在的UIWindow.
37.UITableViewCell 文字位置调整
继承UITableViewCell,然后实现layoutSubviews函数,如下代码把textlabel下移了10个像素:
- (void) layoutSubviews
[superlayoutSubviews];
intcellHeight =self.frame.size.
intcellWidth =self.frame.size.
self.textLabel.frame=CGRectMake(0,10,cellWidth, cellHeight-10);
38.ios带圆角图片的拉伸
UIImage* aImage =[[UIImageimageNamed:@&xxx.png&]stretchableImageWithLeftCapWidth:3topCapHeight:3];
原图边框内的3个像素不拉伸,中间部分按需要拉伸,可以保持圆角不被破坏
39自定义UINavigtion
1如果只是要更改left button 或者right button 的背景颜色:
UINavigationBar* aNavigationBar = self.navigationController.navigationB
aNavigationBar.tintColor = [UIColor lightGrayColor];
2,如果要自定义left button 或者right button 的背景图片:
UIButton* backButton = [customNavigationBar backButtonWith:[UIImage imageNamed:@&navigationBarBackButton.png&] highlight:nilleftCapWidth:14.0];
backButton.titleLabel.textColor = [UIColor colorWithRed:254.0/255.0 green:239.0/255.0 blue:218.0/225.0 alpha:0.5];
self.navigationItem.leftBarButtonItem = [[[UIBarButtonItem alloc] initWithCustomView:backButton] autorelease];
3,如果要自定义navigation整个的背景图片:
1,自定义navigationbar,然后在这个自定义类中实现如下函数
- (void)drawRect:(CGRect)rect
if (navigationBarBackgroundImage)
[navigationBarBackgroundImage drawInRect:rect];
[super drawRect:rect];,如果只是要更改left button 或者right button 的背景颜色:
UINavigationBar* aNavigationBar = self.navigationController.navigationB
aNavigationBar.tintColor = [UIColor lightGrayColor];
2,如果要自定义left button 或者right button 的背景图片:
UIButton* backButton = [customNavigationBar backButtonWith:[UIImage imageNamed:@&navigationBarBackButton.png&] highlight:nilleftCapWidth:14.0];
backButton.titleLabel.textColor = [UIColor colorWithRed:254.0/255.0 green:239.0/255.0 blue:218.0/225.0 alpha:0.5];
self.navigationItem.leftBarButtonItem = [[[UIBarButtonItem alloc] initWithCustomView:backButton] autorelease];
3,如果要自定义navigation整个的背景图片:
1,自定义navigationbar,然后在这个自定义类中实现如下函数
- (void)drawRect:(CGRect)rect
if (navigationBarBackgroundImage)
[navigationBarBackgroundImage drawInRect:rect];
[super drawRect:rect];}

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