IOS常用代碼塊整理集合

定義：

1.按鈕并切割圓角:

<#按鈕名#>.layer.borderWidth = 1.0;//邊框線長(zhǎng)度

self.<#按鈕名#>.layer.borderColor = [UIColor grayColor].CGColor;//邊框線顏色

self.<#按鈕名#>.layer.cornerRadius=10;//切割角度半徑

self.<#按鈕名#>.layer.masksToBounds=YES;//切割部分是否隱藏


2.提醒界面

#pragma mark 提醒界面

-(void)tixingjiemian:(NSString* )name{

UIAlertController *alertController = [UIAlertController alertControllerWithTitle:name message:@"" preferredStyle:UIAlertControllerStyleAlert];

UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"確定" style:UIAlertActionStyleDestructive handler:nil];

[alertController addAction:cancelAction];

[self presentViewController:alertController animated:YES completion:nil];

//修改title

NSMutableAttributedString *alertControllerStr = [[NSMutableAttributedString alloc] initWithString:name];

[alertControllerStr addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(0, 4)];

[alertControllerStr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:17] range:NSMakeRange(0, 4)];

[alertController setValue:alertControllerStr forKey:@"attributedTitle"];

[cancelAction setValue:[UIColor blueColor] forKey:@"titleTextColor"];

}

3.刪除user defaults信息

- (void)resetDefaults

{

NSUserDefaults * defs = [NSUserDefaults standardUserDefaults];

NSDictionary * dict = [defs dictionaryRepresentation];

for (id key in dict)

{

[defs removeObjectForKey:key];

}

[defs synchronize];

}

4.快捷創(chuàng)建屏幕尺寸

/** 屏幕尺寸參數(shù) */

#define SCREEN_WIDTH? ? ? ? ([UIScreen mainScreen].bounds.size.width)

#define SCREEN_HEIGHT? ? ? ([UIScreen mainScreen].bounds.size.height)

5.更改cell選中的背景

UIView *myview = [[UIView alloc] init];

myview.frame = CGRectMake(0, 0, 320, 47);

myview.backgroundColor = [UIColorcolorWithPatternImage:[UIImage imageNamed:@"0006.png"]];

cell.selectedBackgroundView = my view;

6.圖片水印

#pragma mark 圖片的水印

-(UIImage *)watermarkImage:(UIImage *)img withName:(NSString *)name

{

NSDate *? senddate=[NSDate date];

NSDateFormatter? *dateformatter=[[NSDateFormatter alloc] init];

[dateformatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"];

NSString * locationString=[dateformatter stringFromDate:senddate];

NSString* mark = name;

mark=locationString;

NSLog(@"%@",mark);

int w = img.size.width;

int h = img.size.height;

UIGraphicsBeginImageContext(img.size);

[img drawInRect:CGRectMake(0,0 , w, h)];

NSDictionary *attr = @{

NSFontAttributeName: [UIFont boldSystemFontOfSize:14],? //設(shè)置字體

NSForegroundColorAttributeName : [UIColor redColor]? //設(shè)置字體顏色

};

[mark drawInRect:CGRectMake(w -160, 10, 160, 30) withAttributes:attr];? ? ? //右上角

UIImage *aimg = UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

return aimg;

}

7.圖片壓縮

#pragma mark 圖片壓縮

-(UIImage*)imageWithImage:(UIImage*)image scaledToSize:(CGSize)newSize

{

UIGraphicsBeginImageContext(newSize);

[image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];

UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

return newImage;

}

8.圖片模糊處理效果

#import- (UIImage *)blurryImage:(UIImage *)image withBlurLevel:(CGFloat)blur

{

int boxSize = (int)blur;//模糊度

if (blur>=30) {

boxSize=1;

}else{

boxSize -= (boxSize % 2) +1;

}

CGImageRef img = image.CGImage;

//圖像緩存,輸入緩存,輸出緩存

vImage_Buffer inBuffer, outBuffer;

vImage_Error error;

void *pixelBuffer;//像素緩存

CGDataProviderRef inProvider =CGImageGetDataProvider(img);

CFDataRef inBitmapData =CGDataProviderCopyData(inProvider);

inBuffer.width =CGImageGetWidth(img);

inBuffer.height =CGImageGetHeight(img);

inBuffer.rowBytes =CGImageGetBytesPerRow(img);

inBuffer.data = (void*)CFDataGetBytePtr(inBitmapData);

//像數(shù)緩存，字節(jié)行*圖片高

pixelBuffer = malloc(CGImageGetBytesPerRow(img) *CGImageGetHeight(img));

outBuffer.data = pixelBuffer;

outBuffer.width =CGImageGetWidth(img);

outBuffer.height =CGImageGetHeight(img);

outBuffer.rowBytes =CGImageGetBytesPerRow(img);

// 第三個(gè)中間的緩存區(qū),抗鋸齒的效果

void *pixelBuffer2 =malloc(CGImageGetBytesPerRow(img) *CGImageGetHeight(img));

vImage_Buffer outBuffer2;

outBuffer2.data = pixelBuffer2;

outBuffer2.width =CGImageGetWidth(img);

outBuffer2.height =CGImageGetHeight(img);

outBuffer2.rowBytes =CGImageGetBytesPerRow(img);

error = vImageBoxConvolve_ARGB8888(&inBuffer, &outBuffer2,NULL,0,0, boxSize, boxSize,NULL, kvImageEdgeExtend);

error = vImageBoxConvolve_ARGB8888(&inBuffer, &outBuffer,NULL,0,0, boxSize, boxSize,NULL, kvImageEdgeExtend);

CGColorSpaceRef colorSpace =CGColorSpaceCreateDeviceRGB();

CGContextRef ctx =CGBitmapContextCreate(

outBuffer.data,

outBuffer.width,

outBuffer.height,

outBuffer.rowBytes,

colorSpace,

CGImageGetBitmapInfo(image.CGImage));

CGImageRef imageRef =CGBitmapContextCreateImage(ctx);

UIImage *returnImage = [UIImage imageWithCGImage:imageRef];

//清理內(nèi)存

CGContextRelease(ctx);

CGColorSpaceRelease(colorSpace);

free(pixelBuffer);

free(pixelBuffer2);

CFRelease(inBitmapData);

CGColorSpaceRelease(colorSpace);

CGImageRelease(imageRef);

return returnImage;

}

9.定義類型

@property (strong, nonatomic) NSString *<#類型名#>;/**< <#備注#> */

@property (copy, nonatomic) NSString *<#name#>;/**< <#備注#> */

@property (nonatomic,assign)BOOL <#bool名#>;/**< <#備注#> */

@property (nonatomic, assign) int <#類型名#>;/**< <#備注#> */

10.郵箱格式判斷

-(BOOL)isValidateEmail:(NSString *)email

{

NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";

NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES%@",emailRegex];

return [emailTest evaluateWithObject:email];

}

11.阿拉伯?dāng)?shù)字轉(zhuǎn)中文

+(NSString *)translation:(NSString *)arebic

{

NSString *str = arebic;

NSArray *arabic_numerals = @[@"1",@"2",@"3",@"4",@"5",@"6",@"7",@"8",@"9",@"0"];

NSArray *chinese_numerals = @[@"一",@"二",@"三",@"四",@"五",@"六",@"七",@"八",@"九",@"零"];

NSArray *digits = @[@"個(gè)",@"十",@"百",@"千",@"萬(wàn)",@"十",@"百",@"千",@"億",@"十",@"百",@"千",@"兆"];

NSDictionary *dictionary = [NSDictionary dictionaryWithObjects:chinese_numerals forKeys:arabic_numerals];

NSMutableArray *sums = [NSMutableArray array];

for (int i = 0; i < str.length; i ++) {

NSString *substr = [str substringWithRange:NSMakeRange(i, 1)];

NSString *a = [dictionary objectForKey:substr];

NSString *b = digits[str.length -i-1];

NSString *sum = [a stringByAppendingString:b];

if ([a isEqualToString:chinese_numerals[9]])

{

if([b isEqualToString:digits[4]] || [b isEqualToString:digits[8]])

{

sum = b;

if ([[sums lastObject] isEqualToString:chinese_numerals[9]])

{

[sums removeLastObject];

}

}else

{

sum = chinese_numerals[9];

}

if ([[sums lastObject] isEqualToString:sum])

{

continue;

}

}

[sums addObject:sum];

}

NSString *sumStr = [sums componentsJoinedByString:@""];

NSString *chinese = [sumStr substringToIndex:sumStr.length-1];

NSLog(@"%@",str);

NSLog(@"%@",chinese);

return chinese;

}

12.建立按鈕

CGRect frame = CGRectMake(0, 400, 72.0, 37.0);

UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];

button.frame = frame;

[button setTitle:@"新添加的按鈕" forState: UIControlStateNormal];

button.backgroundColor = [UIColor clearColor];

button.tag = 2000;

[button addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button];

13.查找一個(gè)視圖里面的所有視圖

- (NSMutableArray *)allSubViewsForView:(UIView *)view

{

NSMutableArray *array = [NSMutableArray arrayWithCapacity:0];

for (UIView *subView in view.subviews)

{

[array addObject:subView];

if (subView.subviews.count > 0)

{

[array addObjectsFromArray:[self allSubViewsForView:subView]];

}

}

return array;

}

14.修改狀態(tài)欄顏色

- (void)setStatusBarBackgroundColor:(UIColor *)color

{

UIView *statusBar = [[[UIApplication sharedApplication] valueForKey:@"statusBarWindow"] valueForKey:@"statusBar"];

if ([statusBar respondsToSelector:@selector(setBackgroundColor:)])

{

statusBar.backgroundColor = color;

}

}

15.修改UITextField中placeholder的文字顏色

[textField setValue:[UIColor redColor] forKeyPath:@"_placeholderLabel.textColor"];

16.密碼格式判斷

- (BOOL)judgePassWordLegal:(NSString *)pass{

BOOL result = false;

if ([pass length] >= 6 && [pass length] <=12){

// 判斷長(zhǎng)度大于8位后再接著判斷是否同時(shí)包含數(shù)字和字符

NSString * regex = @"^(?![0-9]+$)(?![a-zA-Z]+$)[0-9A-Za-z]{6,12}$";

NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];

result = [pred evaluateWithObject:pass];

}

return result;

}

17.菊花界面

#pragma mark 建立并開(kāi)始菊花界面請(qǐng)求

-(void)beginjuhua{

UIActivityIndicatorView *testActivityIndicator = [[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];

testActivityIndicator.center = CGPointMake(100.0f, 100.0f);//只能設(shè)置中心缰贝，不能設(shè)置大小

[testActivityIndicator setFrame :CGRectMake(100, 200, 100, 100)];//不建議這樣設(shè)置桨嫁，因?yàn)?/p>

[self.view addSubview:testActivityIndicator];

testActivityIndicator.color = [UIColor greenColor]; // 改變?nèi)θΦ念伾珵榧t色； iOS5引入

[testActivityIndicator startAnimating]; // 開(kāi)始旋轉(zhuǎn)

self.testview=testActivityIndicator;

}

#pragma mark 結(jié)束并移除菊花界面

-(void)endjuhua{

dispatch_async(dispatch_get_main_queue(), ^{

[_testview stopAnimating]; // 結(jié)束旋轉(zhuǎn)

[_testview removeFromSuperview]; //當(dāng)旋轉(zhuǎn)結(jié)束時(shí)移除

});

}

18.數(shù)組求和求平均求最大最小值

NSArray *array = [NSArray arrayWithObjects:@"2.0", @"2.3", @"3.0", @"4.0", @"10", nil];

CGFloat sum = [[array valueForKeyPath:@"@sum.floatValue"] floatValue];

CGFloat avg = [[array valueForKeyPath:@"@avg.floatValue"] floatValue];

CGFloat max =[[array valueForKeyPath:@"@max.floatValue"] floatValue];

CGFloat min =[[array valueForKeyPath:@"@min.floatValue"] floatValue];

NSLog(@"%f\n%f\n%f\n%f",sum,avg,max,min);

19.照片選擇代理

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info

{

UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];

self.imageview.image = image;

[picker dismissViewControllerAnimated:NO completion:nil];

UIImage *originImage = self.imageview.image;

NSData *data = UIImageJPEGRepresentation(originImage, 1.10f);

NSString *encodedImageStr = [data base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];

_image1=encodedImageStr;

[self tanchukuang];

}

20.鍵盤透明

textField.keyboardAppearance = UIKeyboardAppearanceAlert;

21.截取屏幕圖片

UIGraphicsBeginImageContext(CGSizeMake(200,400));

//renderInContext 呈現(xiàn)接受者及其子范圍到指定的上下文

[self.view.layer renderInContext:UIGraphicsGetCurrentContext()];

//返回一個(gè)基于當(dāng)前圖形上下文的圖片

UIImage *aImage = UIGraphicsGetImageFromCurrentImageContext();

//移除棧頂?shù)幕诋?dāng)前位圖的圖形上下文

UIGraphicsEndImageContext();

//以png格式返回指定圖片的數(shù)據(jù)

imageData = UIImagePNGRepresentation(aImage);

22.AFN_PHP方式網(wǎng)絡(luò)請(qǐng)求

AFHTTPSessionManager *mgr = [AFHTTPSessionManager manager];

NSDictionary *params = @{

@"user_id":self.userinfo.user_id,

};

[mgr setResponseSerializer:[AFHTTPResponseSerializer serializer]];

[mgr POST:GAINMYINFOMATION parameters:params progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id? _Nullable responseObject) {

NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:responseObject options:kNilOptions error:nil];

NSArray *myarry= [dic valueForKey:@"data"];

NSLog(@"%@",myarry);

} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {

}];

23.GCD定時(shí)器

dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);

dispatch_source_t timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0,queue);

dispatch_source_set_timer(timer,dispatch_walltime(NULL, 0),1.0*NSEC_PER_SEC, 0); //每秒執(zhí)行

dispatch_source_set_event_handler(timer, ^{

//倒計(jì)時(shí)結(jié)束蓖捶，關(guān)閉

dispatch_source_cancel(timer);

dispatch_async(dispatch_get_main_queue(), ^{

});

});

dispatch_resume(timer);

24.for循環(huán)

for (int i=0; i<<#循環(huán)次數(shù)#>; i++) {

}

25.app跳轉(zhuǎn)APPstore

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"itms-apps://itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?type=Purple+Software&id=APPID"]];

26.navigationBar根據(jù)滑動(dòng)距離的漸變色實(shí)現(xiàn)

//第一種

- (void)scrollViewDidScroll:(UIScrollView *)scrollView

{

CGFloat offsetToShow = 200.0;//滑動(dòng)多少就完全顯示

CGFloat alpha = 1 - (offsetToShow - scrollView.contentOffset.y) / offsetToShow;

[[self.navigationController.navigationBar subviews] objectAtIndex:0].alpha = alpha;

}

//第二種

- (void)scrollViewDidScroll:(UIScrollView *)scrollView

{

CGFloat offsetToShow = 200.0;

CGFloat alpha = 1 - (offsetToShow - scrollView.contentOffset.y) / offsetToShow;

[self.navigationController.navigationBar setShadowImage:[UIImage new]];

[self.navigationController.navigationBar setBackgroundImage:[self imageWithColor:[[UIColor orangeColor]colorWithAlphaComponent:alpha]] forBarMetrics:UIBarMetricsDefault];

}

//生成一張純色的圖片

- (UIImage *)imageWithColor:(UIColor *)color

{

CGRect rect = CGRectMake(0.0f, 0.0f, 1.0f, 1.0f);

UIGraphicsBeginImageContext(rect.size);

CGContextRef context = UIGraphicsGetCurrentContext();

CGContextSetFillColorWithColor(context, [color CGColor]);

CGContextFillRect(context, rect);

UIImage *theImage = UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

return theImage;

}

27.UITableView的plain樣式下盔憨，取消區(qū)頭停滯效果

- (void)scrollViewDidScroll:(UIScrollView *)scrollView

{

CGFloat sectionHeaderHeight = sectionHead.height;

if (scrollView.contentOffset.y<=sectionHeaderHeight&&scrollView;.contentOffset.y>=0)

{

scrollView.contentInset = UIEdgeInsetsMake(-scrollView.contentOffset.y, 0, 0, 0);

}

else if(scrollView.contentOffset.y>=sectionHeaderHeight)

{

scrollView.contentInset = UIEdgeInsetsMake(-sectionHeaderHeight, 0, 0, 0);

}

}

28.UITextField的字?jǐn)?shù)限制

//在viewDidLoad中注冊(cè)通知

[[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(textFiledEditChanged:)

name:@"UITextFieldTextDidChangeNotification" object:myTextField];

//實(shí)現(xiàn)監(jiān)聽(tīng)方法

#pragma mark - Notification Method

-(void)textFieldEditChanged:(NSNotification *)obj

{

UITextField *textField = (UITextField *)obj.object;

NSString *toBeString = textField.text;

//獲取高亮部分

UITextRange *selectedRange = [textField markedTextRange];

UITextPosition *position = [textField positionFromPosition:selectedRange.start offset:0];

// 沒(méi)有高亮選擇的字蜻牢，則對(duì)已輸入的文字進(jìn)行字?jǐn)?shù)統(tǒng)計(jì)和限制

if (!position)

{

if (toBeString.length > MAX_STARWORDS_LENGTH)

{

NSRange rangeIndex = [toBeString rangeOfComposedCharacterSequenceAtIndex:MAX_STARWORDS_LENGTH];

if (rangeIndex.length == 1)

{

textField.text = [toBeString substringToIndex:MAX_STARWORDS_LENGTH];

}

else

{

NSRange rangeRange = [toBeString rangeOfComposedCharacterSequencesForRange:NSMakeRange(0, MAX_STARWORDS_LENGTH)];

textField.text = [toBeString substringWithRange:rangeRange];

}

}

}

}

29.UILabel在規(guī)定長(zhǎng)度范圍內(nèi),自適應(yīng)字體,以完全顯示文本

[_titleLabelmas_makeConstraints:^(MASConstraintMaker *make) {

make.left.mas_offset(bItemMargin);

make.centerY.mas_equalTo(0);

make.width.mas_lessThanOrEqualTo(SCREEN_WIDTH - 13);

}];

_titleLabel.adjustsFontSizeToFitWidth =YES;

_titleLabel.minimumScaleFactor =0.5;

30.XML解析

#pragma mark 遍歷查找xml中文件的元素

-(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary*)attributeDict{

_currentElementName = elementName;

[self endjuhua];

if ([_currentElementName isEqualToString:@"checkempResult"]) {

_isCheck = true;

_returnresult = @"";

}

}

#pragma mark 把第一個(gè)代理中我們要找的信息存儲(chǔ)在currentstring中并把要找的信息空格和換行符號(hào)去除

-(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{

if ([_currentElementName isEqualToString:@"checkempResult"]) {

_isCheck = true;

_returnresult =[_returnresult stringByAppendingString:string] ;

self.peoplemessage= [self.returnresult componentsSeparatedByString:@";"];

}

}

#pragma mark 把上部的信息存儲(chǔ)到數(shù)據(jù)中

-(void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{

}

#pragma mark 解析結(jié)束數(shù)據(jù)

- (void)parserDidEndDocument:(NSXMLParser *)parser{

dispatch_async(dispatch_get_main_queue(), ^{

});

}

31.webview創(chuàng)建

#pragma mark--webView

-(UIWebView *)webView {

if (!_webView) {

_webView = [[UIWebView alloc]initWithFrame:CGRectMake(0, 50, SCREEN_WIDTH, SCREEN_HEIGHT)];

_webView.scalesPageToFit = YES;

_webView.delegate = self;

_webView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;

}

return _webView;

}

#pragma mark--webview的delegate

/** start */

-(void)webViewDidStartLoad:(UIWebView *)webView {

}

/** start loading */

-(BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {

return YES;

}

/** finish */

-(void)webViewDidFinishLoad:(UIWebView *)webView {

}

/** error */

-(void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error {

}

32.過(guò)濾特殊字符串

// 定義一個(gè)特殊字符的集合

NSCharacterSet *set = [NSCharacterSet characterSetWithCharactersInString:

? ? ? ? ? ? ? ? ? ? ? @"@／：罪既；（）￥「」＂、[]{}#%-*+=_\\|~＜＞$€^?'@#$%^&*()_+'\""];

// 過(guò)濾字符串的特殊字符

NSString *newString = [trimString stringByTrimmingCharactersInSet:set];

33.自帶請(qǐng)求網(wǎng)絡(luò)（c#webserver）

#pragma mark檢查儲(chǔ)位-(void)storage:(NSString *)message{ NSString *urlStr = @"http://portal.flexium.com.cn:81/changestorages.asmx"; NSURL *url = [NSURL URLWithString:urlStr]; // 2.創(chuàng)建session對(duì)象 NSURLSession *session = [NSURLSession sharedSession]; // 3.創(chuàng)建請(qǐng)求對(duì)象 NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url]; // 4.設(shè)置請(qǐng)求方式與參數(shù) request.HTTPMethod = @"POST"; NSString *str1=[NSString stringWithFormat:@"?xml version='1.0' encoding='utf-8'?%@%@%@%@",message,self.boxmessage[3],self.boxmessage[2],self.peoplemessage[2]]; NSString *dataStr = [NSString stringWithFormat:@"%@",str1]; NSData *data = [dataStr dataUsingEncoding:NSUTF8StringEncoding]; request.HTTPBody = data; NSString *msgLength= [NSString stringWithFormat:@"%zd",(int*)dataStr.length]; [request setValue:@"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"]; [request setValue:msgLength forHTTPHeaderField:@"Content-Length"]; [request setValue:@"http://tempuri.org/checknewstorage" forHTTPHeaderField:@"Action"]; // 5.進(jìn)行鏈接請(qǐng)求數(shù)據(jù) NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) { if (error) { NSLog(@"請(qǐng)求數(shù)據(jù)出錯(cuò)!----%@",error.description); [self intenererror]; } else { [self beginjuhua]; self.parser=[[NSXMLParser alloc]initWithData:data]; NSString *result = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; NSLog(@"%@",result); //添加代理 self.parser.delegate=self; //self.list = [NSMutableArray arrayWithCapacity:9]; //這一步不能少汇在！ self.parser.shouldResolveExternalEntities=true; //開(kāi)始解析 [self.parser parse]; } }]; // 6.開(kāi)啟請(qǐng)求數(shù)據(jù) [dataTask resume];}

34.?視頻格式轉(zhuǎn)換

#pragma mark 視頻格式轉(zhuǎn)換

- (void) convertVideoQuailtyWithInputURL:(NSURL*)inputURL

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? outputURL:(NSURL*)outputURL

? ? ? ? ? ? ? ? ? ? ? ? completeHandler:(void (^)(AVAssetExportSession*))handler

{


? ? AVURLAsset *avAsset = [AVURLAsset URLAssetWithURL:inputURL options:nil];

? ? AVAssetExportSession *exportSession = [[AVAssetExportSession alloc] initWithAsset:avAsset presetName:AVAssetExportPresetMediumQuality];

? ? // NSLog(resultPath);

? ? exportSession.outputURL = outputURL;

? ? exportSession.outputFileType = AVFileTypeMPEG4; //轉(zhuǎn)換的格式

? ? exportSession.shouldOptimizeForNetworkUse= YES;

? ? [exportSession exportAsynchronouslyWithCompletionHandler:^(void)

? ? {

? ? }];

}

35.播放音樂(lè)

-(void)playmusics

{


? ? NSURL *url = [[NSBundle mainBundle] URLForResource:@"7070" withExtension:@"mp3"];


? ? NSError *error = nil;


? ? self.player = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];


? ? self.player.volume = 0.5;//范圍為（0到1）翰萨；


? ? //設(shè)置循環(huán)次數(shù)，如果為負(fù)數(shù)糕殉，就是無(wú)限循環(huán)

? ? self.player.numberOfLoops =0;


? ? //設(shè)置播放進(jìn)度

? ? self.player.currentTime = 0;


? ? //準(zhǔn)備播放

? ? [self.player prepareToPlay];


? ? [self.player play];


}

36.判斷WiFi或網(wǎng)絡(luò)

-(BOOL)panduannetworking{

? ? UIApplication *app = [UIApplication sharedApplication];


? ? NSArray *children = [[[app valueForKeyPath:@"statusBar"] valueForKeyPath:@"foregroundView"] subviews];


? ? int type = 0;

? ? for (id child in children) {

? ? ? ? if ([child isKindOfClass:NSClassFromString(@"UIStatusBarDataNetworkItemView")]) {

? ? ? ? ? ? type = [[child valueForKeyPath:@"dataNetworkType"] intValue];

? ? ? ? }

? ? }

? ? if (type==5) {

? ? ? ? return YES;

? ? } else{

? ? ? ? return NO;

? ? }


}

37.千分位

#pragma mark 金額千分位

- (NSString *)separatedDigitStringWithStr:(NSString *)digitString

{

? ? if (digitString.length <= 3) {


? ? ? ? return digitString;


? ? } else {


? ? ? ? NSMutableString *processString = [NSMutableString stringWithString:digitString];


? ? ? ? NSInteger location = processString.length - 3;


? ? ? ? NSMutableArray *processArray = [NSMutableArray array];


? ? ? ? while (location >= 0) {


? ? ? ? ? ? NSString *temp = [processString substringWithRange:NSMakeRange(location, 3)];


? ? ? ? ? ? [processArray addObject:temp];


? ? ? ? ? ? if (location < 3 && location > 0)


? ? ? ? ? ? {


? ? ? ? ? ? ? ? NSString *t = [processString substringWithRange:NSMakeRange(0, location)];


? ? ? ? ? ? ? ? [processArray addObject:t];


? ? ? ? ? ? }


? ? ? ? ? ? location -= 3;


? ? ? ? }


? ? ? ? NSMutableArray *resultsArray = [NSMutableArray array];


? ? ? ? int k = 0;


? ? ? ? for (NSString *str in processArray)


? ? ? ? {


? ? ? ? ? ? k++;


? ? ? ? ? ? NSMutableString *tmp = [NSMutableString stringWithString:str];


? ? ? ? ? ? if (str.length > 2 && k < processArray.count )


? ? ? ? ? ? {


? ? ? ? ? ? ? ? [tmp insertString:@"," atIndex:0];


? ? ? ? ? ? ? ? [resultsArray addObject:tmp];


? ? ? ? ? ? } else {


? ? ? ? ? ? ? ? [resultsArray addObject:tmp];


? ? ? ? ? ? }


? ? ? ? }


? ? ? ? NSMutableString *resultString = [NSMutableString string];


? ? ? ? for (NSInteger i = resultsArray.count - 1 ; i >= 0; i--)


? ? ? ? {


? ? ? ? ? ? NSString *tmp = [resultsArray objectAtIndex:i];


? ? ? ? ? ? [resultString appendString:tmp];


? ? ? ? }


? ? ? ? return resultString;


? ? }


}

38.AFN訪問(wèn)webserver

-(void)webqingqiuurl:(NSString *)weburl xmlstr:(NSString *)xmlstr jiexmltype:(NSString *)xmltype {


? ? AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

? ? manager.responseSerializer = [AFXMLParserResponseSerializer serializer];

? ? // 設(shè)置請(qǐng)求超時(shí)時(shí)間

? ? manager.requestSerializer.timeoutInterval = 30;

? ? // 返回NSData

? ? manager.responseSerializer = [AFHTTPResponseSerializer serializer];

? ? // 設(shè)置請(qǐng)求頭

? ? [manager.requestSerializer setValue:@"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];

? ? [manager.requestSerializer setValue:[NSString stringWithFormat:@"%zd", xmlstr.length] forHTTPHeaderField:@"Content-Length"];

? ? // 設(shè)置HTTPBody

? ? [manager.requestSerializer setQueryStringSerializationWithBlock:^NSString *(NSURLRequest *request, NSDictionary *parameters, NSError *__autoreleasing *error) {

? ? ? ? return xmlstr;

? ? }];

? ? [manager POST:weburl parameters:xmlstr progress:^(NSProgress * _Nonnull uploadProgress) {

? ? } success:^(NSURLSessionDataTask * _Nonnull task, id? _Nullable responseObject) {

? ? ? ? // 請(qǐng)求成功并且結(jié)果有值把結(jié)果傳出去

? ? ? ? NSString *resluts;

? ? ? ? NSString *newStr = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];

? ? ? resluts= [self xmlstr:newStr xmltype:xmltype];

? ? ? ? NSLog(@"%@",resluts);

? ? ? ? //做你想做的事情



? ? ? ? NSLog(@"AFN請(qǐng)求成功 ") ;

? ? } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {

? ? ? ? ? ? NSLog(@"AFN請(qǐng)求失敗-%@",error);

? ? }];

}

-(NSString *)xmlstr:(NSString *)xmlstr xmltype:(NSString *)xmltype {

? ? NSString *resultstr;

? ? NSArray *array=[xmlstr componentsSeparatedByString:[NSString stringWithFormat:@"<%@>",xmltype]];

? ? if (array.count>0) {

? ? ? ? NSArray *ARRAY2=[array[1]componentsSeparatedByString:[NSString stringWithFormat:@"",xmltype]];

? ? ? ? resultstr=ARRAY2[0];

? ? }else{

? ? ? ? resultstr=@"NG";

? ? }

? ? NSLog(@"結(jié)果為：%@",resultstr);

? ? return resultstr;

}

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