swift调用OC
1、创建一个swift或者oc的工程：我这里是创建的Swift语言的工程，工程名SwiftTest
2、在工程中代码目录下创建一个oc的类，选择oc语言， 会出一个对话框，选择YES
3、这时会在工程里看到下图这样一个头文件 *-Bridging-Header.h
4、在这个头文件里添加你的OC文件的.h文件，就可以在任意swift文件中自行调用所包含的oc文件了。 #import “aaa.h”
OC调用swift
在工程的target-》build Setting->package下个性如下两项
Defines Module 改为YES
Product Module Name的值加上“-swift.h”作为头文件被OC包含
//拉伸填满
+(UIImage *)resizeImageWithImageName:(NSString *)imageName{
UIImage *image=[self imageNamed:imageName];
//从中间开始拉伸
return [image stretchableImageWithLeftCapWidth:image.size.width*0.5 topCapHeight:image.size.height*0.5];
}
- (UIImage *)scaleToSize:(UIImage *)img size:(CGSize)size{
UIGraphicsBeginImageContext(size);
[img drawInRect:CGRectMake(0, 0, size.width, size.height)];
UIImage* scaledImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return scaledImage;
}
-(BOOL)prefersStatusBarHidden{
return YES;
}
viewController.hidesBottomBarWhenPushed=YES;
//将json对象装换成json字符串
+(NSString *)coverseObj2JsonStrWithObj:(id)obj{
NSError *error=nil;
NSData *data=[NSJSONSerialization dataWithJSONObject:obj options:0 error:&error];
if(!error){
return [[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding];
}else{
return nil;
}
}
//将json字符串转换成json对象
+(id)converseJsonStr2ObjWithJsonStr:(NSString *)jsonStr{
NSError *error=nil;
NSData *data=[jsonStr dataUsingEncoding:NSUTF8StringEncoding];
id obj =[NSJSONSerialization JSONObjectWithData:data options:0 error:&error];
if(!error){
return obj;
}else{
return nil;
}
}
self.navigationController.navigationBar.barStyle = UIBarStyleBlack;
/*
UIBarStyleDefault = 0,
UIBarStyleBlack = 1,
UIBarStyleBlackOpaque = 1, // Deprecated. Use UIBarStyleBlack
UIBarStyleBlackTranslucent = 2
*/
_weatherView=[[WeatherView alloc]initWithFrame:CGRectMake(0, 0, 45, 50)];
UIBarButtonItem *leftBarButon = [[ UIBarButtonItem alloc ] initWithCustomView :_weatherView];
if(([[[UIDevice currentDevice] systemVersion] floatValue]>=7.0?20:0)){
UIBarButtonItem *negativeSpacer = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
negativeSpacer.width = -10;//这个数值可以根据情况自由变化
self.navigationItem.leftBarButtonItems = @[negativeSpacer, leftBarButon];
}else{
self.navigationItem.leftBarButtonItem = leftBarButon;
}
-(void)internet{
[[AFNetworkReachabilityManager sharedManager] startMonitoring];
//设置网络变化回调
[[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
switch (status) {
case AFNetworkReachabilityStatusNotReachable:{
NSLog(@"无网络");
break;
}
case AFNetworkReachabilityStatusReachableViaWiFi:{
NSLog(@"WiFi网络");
if (!_weatherView.isLoad) {//如果weather没加载
[_weatherView download];
}
break;
}
case AFNetworkReachabilityStatusReachableViaWWAN:{
NSLog(@"无线网络");
if (!_weatherView.isLoad) {//如果weather没加载
[_weatherView download];
}
break;
}
default:
break;
}
}];
}
manger.responseSerializer.acceptableContentTypes=[NSSet setWithObjects:@"application/json",@"text/html",@"text/plain", nil];
[UIView animateWithDuration:0.2 delay:0.0 usingSpringWithDamping:1 initialSpringVelocity:0.5 options:UIViewAnimationOptionCurveEaseIn animations:^{
_imageview.transform=CGAffineTransformMakeTranslation(0,-3);
} completion:^(BOOL finished) {
[UIView animateWithDuration:0.5 delay:0.0 usingSpringWithDamping:0.3 initialSpringVelocity:5.0 options:UIViewAnimationOptionCurveLinear animations:^{
_imageview.transform=CGAffineTransformMakeTranslation(0, 0);
} completion:^(BOOL finished) {
}];
}];
if(self.delegate&&[self.delegate respondsToSelector:@selector(SignBtnClick: ScoreLabel:)]){
[self.delegate SignBtnClick:_TitleLabel ScoreLabel:_ScoreLabel];
}
user.tabBarItem.image = [[UIImage imageNamed:@"user"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
NSDictionary *dic =@{NSForegroundColorAttributeName:UIColorFromRGB(0xFE4500),NSFontAttributeName:[UIFont systemFontOfSize:13]};
[home.tabBarItem setTitleTextAttributes:dic forState:UIControlStateSelected];
self.navigationController.navigationBar.barStyle = UIBarStyleBlack;
_weatherView=[[WeatherView alloc]initWithFrame:CGRectMake(0, 0, 45, 50)];
UIBarButtonItem *leftBarButon = [[ UIBarButtonItem alloc ] initWithCustomView :_weatherView];
if(([[[UIDevice currentDevice] systemVersion] floatValue]>=7.0?20:0)){
UIBarButtonItem *negativeSpacer = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
negativeSpacer.width = -10;//这个数值可以根据情况自由变化
self.navigationItem.leftBarButtonItems = @[negativeSpacer, leftBarButon];
}else{
self.navigationItem.leftBarButtonItem = leftBarButon;
}
-(void)internet{
[[AFNetworkReachabilityManager sharedManager] startMonitoring];
//设置网络变化回调
[[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
switch (status) {
case AFNetworkReachabilityStatusNotReachable:{
NSLog(@"无网络");
break;
}
case AFNetworkReachabilityStatusReachableViaWiFi:{
NSLog(@"WiFi网络");
if (!_weatherView.isLoad) {//如果weather没加载
[_weatherView download];
}
break;
}
case AFNetworkReachabilityStatusReachableViaWWAN:{
NSLog(@"无线网络");
if (!_weatherView.isLoad) {//如果weather没加载
[_weatherView download];
}
break;
}
default:
break;
}
}];
}
manger.responseSerializer.acceptableContentTypes=[NSSet setWithObjects:@"application/json",@"text/html",@"text/plain", nil];
Client.httpClient.responseSerializer = [AFHTTPResponseSerializer serializer];//不自动转换类型
self.manager.requestSerializer.timeoutInterval
if(self.delegate&&[self.delegate respondsToSelector:@selector(SignBtnClick: ScoreLabel:)]){
[self.delegate SignBtnClick:_TitleLabel ScoreLabel:_ScoreLabel];
}
user.tabBarItem.image = [[UIImage imageNamed:@"user"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
NSDictionary *dic =@{NSForegroundColorAttributeName:UIColorFromRGB(0xFE4500),NSFontAttributeName:[UIFont systemFontOfSize:13]};
[home.tabBarItem setTitleTextAttributes:dic forState:UIControlStateSelected];
NSString *str=[NSString stringWithFormat:@"¥%.2f",[moudel.lastPrice floatValue]];
NSDictionary *dict=@{NSStrikethroughStyleAttributeName:@(NSUnderlineStyleSingle|NSUnderlinePatternSolid),NSStrikethroughColorAttributeName:[UIColor grayColor]};
NSMutableAttributedString *aStr=[[NSMutableAttributedString alloc]initWithString:str attributes:dict];
_myLastPriceLabel.attributedText=aStr;
-(CGRect)titleRectForContentRect:(CGRect)contentRect{
return CGRectMake(0, 0, CGRectGetWidth(contentRect)*RATIO, CGRectGetHeight(contentRect));
}
//改变image的位置
-(CGRect)imageRectForContentRect:(CGRect)contentRect{
return CGRectMake(CGRectGetWidth(contentRect)*RATIO, 0, CGRectGetWidth(contentRect)*(1-RATIO), CGRectGetHeight(contentRect));
}
[self.navigationController.navigationBar setTitleTextAttributes:@{NSFontAttributeName:[UIFont systemFontOfSize:24],NSForegroundColorAttributeName:[UIColor magentaColor]}];
UIImageWriteToSavedPhotosAlbum(imageview.image, nil, nil, nil);
CGSize itemSize = CGSizeMake(60, 60);
UIGraphicsBeginImageContext(itemSize);
CGRect imageRect = CGRectMake(0.0, 0.0, itemSize.width, itemSize.height);
[cell.imageView.image drawInRect:imageRect];
cell.imageView.image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
cell.selectedBackgroundView=bgView;
Tableview.separatorStyle=UITableViewCellSeparatorStyleNone;
[cell setNeedsDisplay];//将cell标识为需要重绘
[cell layoutIfNeeded];//cell如果需要重绘就重新绘制
tableView.estimatedRowHeight=CGRectGetMaxY(cell.MyCol.frame)+10;//预估算高度
tableView.rowHeight=UITableViewAutomaticDimension;//自适应高度
[[NSNotificationCenter defaultCenter]addObserver:self selector:@selector() name:UIKeyboardWillShowNotification object:nil];
info.plist中添加
Localized resources can be mixed 设置为 YES
在IOS8以后调用定位需要在info.plist里面加入两个属性
1.NSLocationAlwaysUsageDescription
2.NSLocationWhenInUseUsageDescription
设置为String 值为1
不这样系统设置定位会蹦
CLAuthorizationStatus status = [CLLocationManager authorizationStatus];
if (kCLAuthorizationStatusDenied == status || kCLAuthorizationStatusRestricted == status) {
UIAlertController *alert=[UIAlertController alertControllerWithTitle:@"提示" message:@"请打开定位功能" preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
}];
[alert addAction:okAction];
[[UIApplication sharedApplication].windows.firstObject.rootViewController presentViewController:alert animated:YES completion:^{
}];
}
//如果没有授权则请求用户授权
if ([CLLocationManager authorizationStatus]==kCLAuthorizationStatusNotDetermined){
[_locationMgr requestAlwaysAuthorization];
if([[UIDevice currentDevice].systemVersion doubleValue] >= 8.0)
{
NSLog(@"是iOS8");
// 主动要求用户对我们的程序授权, 授权状态改变就会通知代理
[_locationMgr requestAlwaysAuthorization]; // 请求前台和后台定位权限
}
}else if([CLLocationManager authorizationStatus]==kCLAuthorizationStatusAuthorizedAlways){
//设置代理
// _locationMgr.delegate=self;
//设置定位精度
_locationMgr.desiredAccuracy=kCLLocationAccuracyBest;
//定位频率,每隔多少米定位一次
CLLocationDistance distance=10.0;//十米定位一次
_locationMgr.distanceFilter=distance;
//启动跟踪定位
[_locationMgr startUpdatingLocation];
}
[view.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];
[string stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
[string stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
- (void)webViewDidFinishLoad:(UIWebView *)webView {
[[NSUserDefaults standardUserDefaults] setInteger:0 forKey:@"WebKitCacheModelPreferenceKey"];
}
[[UIPasteboard generalPasteboard] setString:urlStr];
NSLocale
若你只开发中国区的应用，需要保证用户修改当前语言环境时应用的显示不发生变化。而像NSDateFormatter这样的类，会根据设备的设置，自动返回不同语言的数据。为了保证返回数据的语言一致，我们需要设置NSLocale。
NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"zh"];
NSDateFormatter *secondDateFormatter = [[NSDateFormatter alloc] init];
[secondDateFormatter setDateFormat:@"cccc"];
secondDateFormatter.locale = locale;
NSDate *date = [NSDate date];
NSLog(@"%@", [secondDateFormatter stringFromDate:date]);
使用Luhn算法（Luhn algorithm）校验信用卡号的：
1、从卡号最右边开始，由右向左，奇数位数字直接累加；
2、从卡号最右边开始，由右向左，偶数位数字先乘以2（如果乘积为两位数，则将这两位数再次累加或者将其减去9），再求和。
例如：10 = 1 + 0 = 1, 14 = 1 + 4 = 5 等价于 10 - 9 = 1， 14 - 9 = 5；
3、将奇数位总和加上偶数位总和，结果对10取模为0。
例如，卡号是：356827027232780
奇数位和=28
偶数位乘以2（有些要减去9）的结果求和=32。
最后28+32=70 % 10 = 0，信用卡号校验通过。
- (BOOL)checkCreditCardNumber:(NSString *)cardNum
{
NSAssert(cardNum && cardNum != @"" , @"checkCreditCardNumber: cardNum is nil.");
NSInteger len = [cardNum length];
NSInteger sumNumOdd = 0;
NSInteger sumNumEven = 0;
BOOL isOdd = YES;
for (NSInteger i = len - 1; i >= 0; i--) {
NSInteger num = [cardNum substringWithRange:NSMakeRange(i, 1)].integerValue;
if (isOdd) {//奇数位
sumNumOdd += num;
}else{//偶数位
num = num * 2;
if (num > 9) {
num = num - 9;
}
sumNumEven += num;
}
isOdd = !isOdd;
}
return ((sumNumOdd + sumNumEven) % 10 == 0);
}
-(void)changeUserAgent{
static int i=0;
if(i++){
return;
}
// 获取 iOS 默认的 UserAgent，可以很巧妙地创建一个空的UIWebView来获取
NSString *userAgent = [[[UIWebView alloc]init] stringByEvaluatingJavaScriptFromString:@"navigator.userAgent"];
// 获取App名称，我的App有本地化支持，所以是如下的写法
//NSString *appName = NSLocalizedStringFromTable(@"CFBundleDisplayName", @"InfoPlist", nil);
NSString *version = [[NSBundle mainBundle] infoDictionary][@"CFBundleShortVersionString"];
NSString *customUserAgent = [userAgent stringByAppendingFormat:@" %@/%@", @"ios", version];
[[NSUserDefaults standardUserDefaults] registerDefaults:@{@"UserAgent":customUserAgent}];
}
self.navigationController.interactivePopGestureRecognizer.delegate=(id)self;
+(NSString*)HloveyRC4:(NSString*)aInput key:(NSString*)aKey
{
NSMutableArray *iS = [[NSMutableArray alloc] initWithCapacity:256];
NSMutableArray *iK = [[NSMutableArray alloc] initWithCapacity:256];
for (int i= 0; i<256; i++) {
[iS addObject:[NSNumber numberWithInt:i]];
}
int j=1;
for (short i=0; i<256; i++) {
UniChar c = [aKey characterAtIndex:i%aKey.length];
[iK addObject:[NSNumber numberWithChar:c]];
}
j=0;
for (int i=0; i<255; i++) {
int is = [[iS objectAtIndex:i] intValue];
UniChar ik = (UniChar)[[iK objectAtIndex:i] charValue];
j = (j + is + ik)%256;
NSNumber *temp = [iS objectAtIndex:i];
[iS replaceObjectAtIndex:i withObject:[iS objectAtIndex:j]];
[iS replaceObjectAtIndex:j withObject:temp];
}
int i=0;
j=0;
NSString *result = aInput;
for (short x=0; x<[aInput length]; x++) {
i = (i+1)%256;
int is = [[iS objectAtIndex:i] intValue];
j = (j+is)%256;
int is_i = [[iS objectAtIndex:i] intValue];
int is_j = [[iS objectAtIndex:j] intValue];
int t = (is_i+is_j) % 256;
int iY = [[iS objectAtIndex:t] intValue];
UniChar ch = (UniChar)[aInput characterAtIndex:x];
UniChar ch_y = ch^iY;
result = [result stringByReplacingCharactersInRange:NSMakeRange(x, 1) withString:[NSString stringWithCharacters:&ch_y length:1]];
}
[iS release];
[iK release];
return result;
}
+ (UIImage*)imageFromView:(UIView*)view{
UIGraphicsBeginImageContextWithOptions(view.bounds.size, YES, view.layer.contentsScale);
[view.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return image;
}
// 创建一个基于位 图的图形上下文并指定大小为CGSizeMake(200,400)
UIGraphicsBeginImageContext(CGSizeMake(200,400));
//renderInContext 呈现接受者及其子范围到 指定的上下文
[self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
// 返回 一个基于当前图形上下文的图片
UIImage *aImage = UIGraphicsGetImageFromCurrentImageContext();
// 移除栈顶 的基于当前位图的图形上下文
UIGraphicsEndImageContext();
// 以 png 格式 返回指定图片的数据
imageData = UIImagePNGR epresentation(aImage);
TestViewController * testVC = [TestViewController new];
self.definesPresentationContext = YES; //self is presenting view controller
testVC.view.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:.4];
testVC.modalPresentationStyle = UIModalPresentationOverCurrentContext;
[self presentViewController:testVC animated:YES completion:nil];
SecondViewController * testVC = [SecondViewController new];
self.definesPresentationContext = YES; //self is presenting view controller
testVC.view.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:.5];
// testVC.modalPresentationStyle = UIModalPresentationOverCurrentContext;
UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:testVC];
nav.modalPresentationStyle = UIModalPresentationOverCurrentContext;
nav.view.backgroundColor = [UIColor clearColor];
[self presentViewController:nav animated:YES completion:nil];
Class class = NSClassFromString(@"SecondViewController");
if (class) {
UIViewController *vc = [class new];
[self.navigationController pushViewController:vc animated:YES];
}
AFHTTPSessionManager *sess = [AFHTTPSessionManager manager];
sess.requestSerializer.timeoutInterval = 30;//设置超时
[sess.requestSerializer setValue:Client.token forHTTPHeaderField:@"token"];
sess.responseSerializer.acceptableContentTypes=[NSSet setWithObjects:@"application/json",@"text/html",@"text/plain", nil];
[sess GET:urlStr parameters:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nonnull responseObject) {
[self analysisWithDic:responseObject];//解析数据
} failure:^(NSURLSessionDataTask * _Nonnull task, NSError * _Nonnull error) {
[_tableview.header endRefreshing];
[_tableview.footer endRefreshing];
[SVProgressHUD showInfoWithStatus:@"请检查您的网络连接!"];
NSLog(@"%@",error);
}];
1.url编码
ios中http请求遇到汉字的时候，需要转化成UTF-8，用到的方法是：
NSString * encodingString = [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
2.url解码
请求后，返回的数据，如何显示的是这样的格式：%3A%2F%2F，此时需要我们进行UTF-8解码，用到的方法是：
NSString *str = [model.album_name stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
