PageView ?bug修正 ?1.連續(xù)滑動(dòng)上標(biāo)不正確 ?2.滑動(dòng)到邊緣判斷
// 2.定義需要的參數(shù)
var progress : CGFloat = 0
var targetIndex = 0
var sourceIndex = 0
// 3.計(jì)算進(jìn)度
progress = scrollView.contentOffset.x.truncatingRemainder(dividingBy: scrollView.bounds.width) / scrollView.bounds.width
if progress == 0 {
return
}
// 4.計(jì)算下標(biāo)值
let index = Int(scrollView.contentOffset.x / scrollView.bounds.width)
// 5.判斷用戶(hù)是左滑動(dòng)還是右滑動(dòng)
if collectionView.contentOffset.x > startOffsetX { // 左滑動(dòng)
sourceIndex = index
targetIndex = index + 1
if targetIndex > childVcs.count - 1 {
return
}
} else { // 右滑動(dòng)
sourceIndex = index + 1
targetIndex = index
progress = 1 - progress
if targetIndex < 0 {
return}
2.Socket 客戶(hù)端 ?服務(wù)端 第三方 ysocket
2.1客戶(hù)端
-1.根據(jù)ip 和 端口號(hào)創(chuàng)建客戶(hù)端
fileprivate lazy var tcpClient : TCPClient = TCPClient(addr: "192.168.37.247",port :2828)
0建立連接
func connnect() -> Bool {
return tcpClient.connect(timeout: 5).0
}
1.斷開(kāi)連接
func disconnect() {
tcpClient.close()
}
數(shù)據(jù)的讀取
2.開(kāi)始讀數(shù)據(jù): 1.數(shù)據(jù)內(nèi)容長(zhǎng)度(和服務(wù)器溝通好用幾個(gè)字節(jié)4) ?+ ?數(shù)據(jù)類(lèi)型長(zhǎng)度(和服務(wù)器溝通好用幾個(gè)字節(jié)2--根據(jù)長(zhǎng)度獲取類(lèi)型數(shù)據(jù)) + 具體內(nèi)容數(shù)據(jù)(根據(jù)數(shù)據(jù)內(nèi)容長(zhǎng)度獲取)
2.1 處理具體內(nèi)容數(shù)據(jù)
func startReadMsg() {
DispatchQueue.global().async {
while true {
if let lengthByte = self.tcpClient.read(4) {
// 1.獲取數(shù)據(jù)的長(zhǎng)度
let lengthData = NSData(bytes: lengthByte, length: 4)
var length : Int = 0
lengthData.getBytes(&length, length: 4)
// 2.讀取消息的類(lèi)型
guard let typeBytes = self.tcpClient.read(2) else {
self.tcpClient.read(length)
continue
}
let typeData = NSData(bytes: typeBytes, length: 2)
var type : Int = 0
typeData.getBytes(&type, length: 2)
// 3.獲取具體的內(nèi)容
guard let dataBytes = self.tcpClient.read(length) else {
return
}
let msgData = Data(bytes: dataBytes, count: length)
// 4.處理消息
DispatchQueue.main.async {
self.handleMsg(MessageType(rawValue: type)!, msgData)
}
3.處理消息: 根據(jù)不同消息類(lèi)型定義一個(gè)枚舉--相應(yīng)處理---用代理回調(diào)到控制器做相應(yīng)的ui處理
*這里的消息類(lèi)型是自己定義的方便處理相應(yīng)的ui刷新---這個(gè)類(lèi)型和服務(wù)器約定好 ?int ? 1 ? 2 ? 3 ? 4.. 也就是數(shù)據(jù)類(lèi)型
enum MessageType : Int {
case enterRoom = 0
case leaveRoom = 1
case chatMessage = 2
case giftMessage = 3
}
extension HYSocket {
fileprivate func handleMsg(_ type : MessageType, _ msgData : Data) {
switch type {
case .enterRoom:
?let userInfo = try! UserInfo.parseFrom(data: msgData)
delegate?.hySocket(self, enterRoom: userInfo)
case .leaveRoom:?
let userInfo = try! UserInfo.parseFrom(data: msgData)
delegate?.hySocket(self, leaveRoom: userInfo)
case .chatMessage:
let chatMessage = try! ChatMessage.parseFrom(data: msgData)
delegate?.hySocket(self, receiveMsg: chatMessage)
case .giftMessage:
let giftMessage = try! GiftMessage.parseFrom(data: msgData)
delegate?.hySocket(self, receiveGift: giftMessage)
數(shù)據(jù)發(fā)送 : 最終是 : sendData = 內(nèi)容長(zhǎng)度data + 內(nèi)容類(lèi)型data + ?內(nèi)容data
func enterRoom() {
sendMessage(type: .enterRoom, msgData: userInfo.data())
}
func leaveRoom() {
sendMessage(type: .leaveRoom, msgData: userInfo.data())
}
func sendChatMessage(_ messsage : String) {
// 1.獲取聊天的數(shù)據(jù)
let chatMsg = ChatMessage.Builder()
chatMsg.userInfo = userInfo
chatMsg.message = messsage
let msgData = (try! chatMsg.build()).data()
// 2.發(fā)送數(shù)據(jù)
sendMessage(type: .chatMessage, msgData: msgData)
}
func sendGift(_ giftName : String, _ giftURL : String, _ giftID : String, _ giftCount : Int) {
// 1.獲取禮物的數(shù)據(jù)
let giftMsg = GiftMessage.Builder()
giftMsg.userInfo = userInfo
giftMsg.giftName = giftName
giftMsg.giftUrl = giftURL
giftMsg.giftId = giftID
giftMsg.giftCount = Int32(giftCount)
let msgData = (try! giftMsg.build()).data()
// 2.發(fā)送數(shù)據(jù)
sendMessage(type: .giftMessage, msgData: msgData)
}
fileprivate func sendMessage(type : MessageType, msgData : Data) {
// 1.獲取字符串的長(zhǎng)度
var length = msgData.count
let lengthData = Data(bytes: &length, count: 4)
// 2.獲取消息的類(lèi)型
var tempType = type.rawValue
let typeData = Data(bytes: &tempType, count: 2)
// 3.將message轉(zhuǎn)成Data類(lèi)型
tcpClient.send(data: lengthData + typeData + msgData)
}
4.ProtocolBuffers的使用
1.為什么用這個(gè),怎么用--------用這個(gè)和后臺(tái)溝通方便以對(duì)象的形式可以展示,一般是服務(wù)器寫(xiě)完這個(gè)文件 --我們?cè)偕梢粋€(gè)相應(yīng)的swift或者oc文件,
返回值中有 throw ?必須得 try!
let msgData = (try! giftMsg.build()).data()
優(yōu)點(diǎn):可以直接轉(zhuǎn)成data
syntax = "proto2";
message UserInfo {
required int32 userID = 1;
required string username = 2;
required string iconURL = 3;
required int32 level = 4;
}
message ChatMessage {
required string message = 1;
required UserInfo userInfo = 2;
}
message GiftMessage {
required string giftName = 1;
required string giftURL = 2;
required string giftID = 3;
required int32 giftCount = 4;
required UserInfo userInfo = 5;
}
2.cocopods直接集成
3.上兩部做完就可直接取 ?文件中相應(yīng)的對(duì)象使用例如
// 1.獲取禮物的數(shù)據(jù)
let giftMsg = GiftMessage.Builder()
giftMsg.userInfo = userInfo
giftMsg.giftName = giftName
giftMsg.giftUrl = giftURL
giftMsg.giftId = giftID
giftMsg.giftCount = Int32(giftCount)
let msgData = (try! giftMsg.build()).data()
// 2.發(fā)送數(shù)據(jù)
sendMessage(type: .giftMessage, msgData: msgData)
}
