好爽好黄好刺激的视频,色99热久久99热国产精品,欧美大片免费播放器

? ? ? ? 這幾天搞一個wifi打印機,開始用他們公司給的SDK開發感覺很輕松,接口基本都寫好了,只需要簡單的封裝就ok,結果加到我們項目里面就一直重復定義,一個GCDAsyncSocket和友盟還是微信的SDK沖突了,沒辦法,只能硬著頭皮自己寫SDK.

悲慘的生活開始,以前自己寫過一個socket 的Demo ,拿出來生搬硬套搞了半天,一直連不上打印機(原因:第一次沒開打印機電源,第二次沒開手機wifi).先附上我socket的代碼:

首先我也用的GCDAsyncSocket,這個可以Github一搜就出來了.

//成功連接服務器

```

- (void)socket:(GCDAsyncSocket *)sock didConnectToHost:(NSString *)host port:(uint16_t)port{

}

```

//連接失敗

- (void)socketDidDisconnect:(GCDAsyncSocket *)sock withError:(NSError *)err{

}

//連接成功

- (void)socket:(GCDAsyncSocket *)sock didReadData:(NSData *)data withTag:(long)tag{

NSString *text = [[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding];

[_socket readDataWithTimeout:-1 tag:0];

}

//發消息

- (IBAction)sendMsg:(id)sender {

NSString *text = _textField.text;

if (text.length == 0) {

return;

}

NSMutableData *sendData = [NSMutableData data];

[sendData appendBytes:0x0a length:1];

//把內容發送給服務器

[_socket writeData:sendData withTimeout:-1 tag:0];

[self showMsg:[NSString stringWithFormat:@"發出的消息: %@",text]];

_textField.text = @"";

}

//連接

- (IBAction)connect:(id)sender {

_socket = [[GCDAsyncSocket alloc]initWithDelegate:self delegateQueue:dispatch_get_main_queue() socketQueue:dispatch_get_main_queue()];

NSError *error = nil;

[_socket connectToHost:@"192.168.1.124" onPort:9100 error:&error];

}

這些可以實現最基本的連接上打印機,IP地址,端口號,代理什么的搞好就OK了.但是想想可能還會有沖突,果斷去網上趴了一點別人的socket連接來看.代碼如下:

-(instancetype)init {

if (self = [super init]) {

self.asyncSocket = [[AsyncSocket alloc] initWithDelegate:self];

[self.asyncSocket setRunLoopModes:@[NSRunLoopCommonModes]];

}

return self;

}

//連接打印機

-(void)socketConnectToPrint:(NSString *)host port:(UInt16)port timeout:(NSTimeInterval)timeout {

NSError *error = nil;

[self.asyncSocket connectToHost:host onPort:port withTimeout:timeout error:&error];

}

//檢查連接狀態

-(BOOL)socketIsConnect

{

BOOL isConn = [self.asyncSocket isConnected];

if (isConn) {

NSLog(@"host=%@\nport=%hu\nlocalHost=%@\nlocalPort=%hu",self.asyncSocket.connectedHost,self.asyncSocket.connectedPort,self.asyncSocket.localHost,self.asyncSocket.localPort);

}

return isConn;

}

//發送數據

- (void)socketWriteData:(NSData *)data {

[self.asyncSocket writeData:data withTimeout:-1 tag:0];

}

//手動斷開連接

- (void)socketDisconnectSocket {

[self.asyncSocket disconnect];

}

#pragma mark - Delegate

- (void)onSocket:(AsyncSocket *)sock didConnectToHost:(NSString *)host port:(UInt16)port {

if (_blockCheckData) {

_blockPrintData();

}

//? ? [sock disconnectAfterWriting];

}

- (void)onSocketDidDisconnect:(AsyncSocket *)sock {

if (_blockCheckData) {

_blockCheckData();

}

- (BOOL)onSocketWillConnect:(AsyncSocket *)sock {

return YES;

}

- (void)onSocket:(AsyncSocket *)sock didReadData:(NSData *)data withTag:(long)tag {

NSLog(@"讀取完成");

}

- (void)onSocket:(AsyncSocket *)sock didWriteDataWithTag:(long)tag {

NSLog(@"寫入完成");

}

- (void)onSocket:(AsyncSocket *)sock willDisconnectWithError:(NSError *)err {

NSLog(@"即將斷開");

}

看了看別人的socket發現還是很美好的,果斷還是使用了別人的代碼,哈哈!

然后就要開始搞指令了,他們公司給了我一份開發文檔,我一開始是一點都看不懂,慢慢摸索之后終于敢自己動手寫,先來一段代碼:

//55.打印條形碼

- (void)printBarcode:(kBarcodeType)type barcode:(NSString *)barcode{

unsigned char typeData[] = {29,107,type,(UInt8)barcode.length};

[self addBytesCommand:typeData Length:4];

//PS:這里的這個length也是一個需要注意的地方,很容易改了上面忘記改下面.

NSMutableData* data = [NSMutableData data];

int idx;

for (idx = 0; idx < barcode.length; idx ++) {

NSRange range = NSMakeRange(idx, 1);

NSString* hexStr = [barcode substringWithRange:range];

NSScanner* scanner = [NSScanner scannerWithString:hexStr];

unsigned int intValue;

[scanner scanHexInt:&intValue];

intValue += 48;

[data appendBytes:&intValue length:1];

}

[self.sendData appendData:data];

}

用socket和打印機通信必須是用data,也就是所有數據都要轉成byte,語法也是C語言的語法.用的相當頭痛.

這個是把打印條形碼的方法封裝了出來,也是一波三折,根據開發文檔要求,前兩個字節是給定的,第三個是條形碼類型,一會16進制,一會10進制給我搞懵逼了,最后干脆全部用十進制(開發文檔上的數字真的很難理解什么類型,有可能10進制,有可能要轉成ASCLL碼),然后要遍歷字符串把每一個字符轉成data類型,也是煞費苦心.先把字符轉成int型,然后開發文檔要求ASCLL碼,在+48.現在知道了感覺什么都很簡單,其實當時各種問題各種錯.

其實所有的指令封裝都大同小異,基本都是這種思路.

這次的任務首先對socket的認識更加的深入了,然后NSScanner是以前根本不知道的類也學到了點,各種編碼的轉換關系也理的比較清楚了.對于wifi打印機我想已經難不倒我了.

最后對所有的進行封裝,一個寫了三個管理類,一個socketManager 一個PrintManager 一個ReceiptManager 提供給別人的接口其中就是ReceiptManager,在ReceiptManager里面寫了很多方法以供調用:

- (instancetype)initWithHost:(NSString *)host port:(UInt16)port timeout:(NSTimeInterval)timeout {

if (self = [super init])

{

[self.asynaSocket socketConnectToPrint:host port:port timeout:timeout];

}

return self;

}

- (void)connectWithHost:(NSString *)host port:(UInt16)port timeout:(NSTimeInterval)timeout {

[self.asynaSocket socketConnectToPrint:host port:port timeout:timeout];

}

- (MMSocketManager *)asynaSocket {

if (!_asynaSocket) {

_asynaSocket = [[MMSocketManager alloc] init];

}

return _asynaSocket;

}

- (MMPrinterManager *)printerManager {

if (!_printerManager) {

_printerManager = [[MMPrinterManager alloc] init];

}

return _printerManager;

}

//基礎設置

- (void)basicSetting {

[self.printerManager printInitialize];

[self.printerManager printSetStanderModel];

[self.printerManager printDotDistanceW:DotSpace h:DotSpace];

//? ? [self.printerManager printLeftMargin:5.0];

[self.printerManager printDefaultLineSpace];

//? ? [self.printerManager printAreaWidth:70];

[self.printerManager printSelectFont:standardFont];

}

//清空緩存數據

- (void)clearData {

self.printerManager.sendData.length = 0;

}

//單行文本輸入(不及時打印)距離0.125mm為單位

- (void)writeData_text:(NSString *)text leftSpace:(NSInteger)space{

[_printerManager printAbsolutePosition:space];

[_printerManager printAddText:text];

}

//設置字號

- (void)setTextFont:(kCharScale)scale{

[_printerManager printCharSize:scale];

}

//打印進紙換行輸入

- (void)printAndGotoNextLine{

[_printerManager printAndGotoNextLine];

[_asynaSocket socketWriteData:[self.printerManager sendData]];

[self clearData];

}

//寫入標題

- (void)writeData_title:(NSString *)title Scale:(kCharScale)scale Type:(kAlignmentType)type {

[_printerManager printCharSize:scale];

[_printerManager printAlignmentType:type];

[_printerManager printAddText:title];

[_printerManager printAndGotoNextLine];

}

//寫入多行文字

- (void)writeData_items:(NSArray *)items {

[self.printerManager printCharSize:scale_1];

[_printerManager printAlignmentType:LeftAlignment];

for (NSString *item in items) {

[_printerManager printAddText:item];

[_printerManager printAndGotoNextLine];

}

//打印圖片

- (void)writeData_image:(UIImage *)image alignment:(kAlignmentType)alignment maxWidth:(CGFloat)maxWidth {

[self.printerManager printAlignmentType:alignment];

//? ? UIImage *inImage = image;

CGFloat width = image.size.width;

if (width > maxWidth) {

CGFloat height = image.size.height;

CGFloat maxHeight = maxWidth * height / width;

image = [self createCurrentImage:image width:maxWidth height:maxHeight];

}

[self.printerManager printBitmapModel:image];

[self.printerManager printAndGotoNextLine];

}

// 縮放圖片

- (UIImage *)createCurrentImage:(UIImage *)inImage width:(CGFloat)width height:(CGFloat)height {

CGSize size = CGSizeMake(width, height);

UIGraphicsBeginImageContext(size);

[inImage drawInRect:CGRectMake(0, 0, width, height)];

UIImage *resultImage = UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

return resultImage;

}

//func createCurrentImage(inImage:UIImage, width:CGFloat, height:CGFloat)->UIImage{

//? ? //? ? ? ? let w = CGFloat(width)

//? ? //? ? ? ? let h = CGFloat(height)

//? ? let size = CGSizeMake(width, height)

//? ? UIGraphicsBeginImageContext(size)

//? ? inImage.drawInRect(CGRectMake(0, 0, width, height))

//? ? let image = UIGraphicsGetImageFromCurrentImageContext()

//? ? UIGraphicsEndImageContext()

//? ? return image

//}

//條目,菜單,有間隔,如:

//? 炸雞排? ? 2? ? ? 12.50? ? ? 25.00

- (void)writeData_content:(NSArray *)items {

[self.printerManager printCharSize:scale_1];

[_printerManager printAlignmentType:LeftAlignment];

for (NSDictionary *dict in items) {

[self writeData_spaceItem:dict];

}

- (void)writeData_spaceItem:(NSDictionary *)item {

[_printerManager printAddText:[item objectForKey:@"key01"]];

[_printerManager printAbsolutePosition:250];

[_printerManager printAddText:[item objectForKey:@"key02"]];

[_printerManager printAbsolutePosition:400];

[_printerManager printAddText:[item objectForKey:@"key03"]];

[_printerManager printAbsolutePosition:500];

[_printerManager printAddText:[item objectForKey:@"key04"]];

[_printerManager printAndGotoNextLine];

}

//打印分割線

- (void)writeData_line {

[self.printerManager printAlignmentType:MiddleAlignment];

[self.printerManager printAddText:@"------------------------------------------"];

[self.printerManager printAndGotoNextLine];

}

//打開錢箱

- (void)openCashDrawer {

[self.printerManager printOpenCashDrawer];

}

//打印小票并切紙

- (void)printReceipt {

[self.printerManager printCutPaper:feedPaperHalfCut Num:12];

[_asynaSocket socketWriteData:[self.printerManager sendData]];

[self clearData];

}

//打印條形碼

- (void)printBarcode:(kBarcodeType)type barcode:(NSString *)barcode width:(UInt8)width height:(UInt8)height{

[self.printerManager setBarcodeWidth:width];

[self.printerManager setBarcodeHeight:height];

[self.printerManager printBarcode:type barcode:barcode];

}

其中我本來認為打印圖片可以打印二維碼和條形碼,結果我用CIFile生成的二維碼和條形碼,只有二維碼能夠被打印出來,想了很多辦法至今沒有解決,只能按照指令自己寫打印條形碼,如果誰知道是什么回事,謝謝你與我分享.

代碼完工,提交,匯報老大,在幾番測試之下,新的bug又出來了.老大說他只點了三次打印卻打印了6行數據.

第一反應是難道哪里的打印方法寫重復了?排查一遍并沒有,然后自己拿起打印機繼續調試,發現打印2次會有3行數據,規律出來了,疊加了,把數據裝進了data,執行打印之后data發送給了打印機,但是并沒有清楚掉,補上clear方法之后,終于,wifi打印機的所有功能圓滿結束.

三个男躁一个女,国精产品一区一手机的秘密,麦子交换系列最经典十句话,欧美国产综合欧美视频

iOS WiFi打印機Socket通信及指令的代碼實現

iOS WiFi打印機Socket通信及指令的代碼實現

推薦閱讀更多精彩內容

三个男躁一个女,国精产品一区一手机的秘密,麦子交换系列最经典十句话,欧美 国产 综合 欧美 视频

iOS WiFi打印機Socket通信及指令的代碼實現

推薦閱讀更多精彩內容

三个男躁一个女,国精产品一区一手机的秘密,麦子交换系列最经典十句话,欧美国产综合欧美视频