JQAddWordController

#import <UIKit/UIKit.h>

@interface JQAddWordController : UIViewController
@property (nonatomic,copy) NSString *queryStr;
@end

#import "JQAddWordController.h"
#import "JQWord.h"
#import "JQMessage.h"
#import "JQTextView.h"
#import "JQMessageFrame.h"
#import "JQMessageCell.h"
#import "JQQueryTool.h"

#import "JQNavigationController.h"

@interface JQAddWordController () <UITableViewDelegate,UITableViewDataSource,UIScrollViewDelegate,UITextViewDelegate>

@property (nonatomic,weak)JQTextView *textView;//自定义的自适应高度输入框
@property (nonatomic,weak)UIButton *backBtn;//输入框左边返回按钮
@property (nonatomic,weak)UIButton *sendBtn;//输入框右边选择btn
@property (nonatomic,weak)UITableView *tableView;
@property (nonatomic,strong)NSMutableArray *messageFrames;

@end

@implementation JQAddWordController

- (NSMutableArray *)messageFrames{
    if (!_messageFrames) {
        _messageFrames=[NSMutableArray array];
    }
    return _messageFrames;
}

#pragma mark 生命周期方法
- (void)viewDidLoad{
    [super viewDidLoad];
    self.title=@"查词";
    self.view.backgroundColor=JQBoardBGColor;
    
    //配置子控件:(底部输入框)
    [self configSubview];
    
    //监听键盘
    [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(keyboardWillChangeFrame:) name:UIKeyboardWillChangeFrameNotification object:nil];
    
    //外界传参处理:(比如在webView中提交的单词)
    [self configParam];
}

- (void)viewDidAppear:(BOOL)animated{
    [super viewDidAppear:animated];
    if (self.queryStr) return; //如果有外界的查询,那么不弹起键盘
    //弹出键盘
    [self.textView becomeFirstResponder];
}

-(void)dealloc{
    /**
     *  解除监听
     */
    [[NSNotificationCenter defaultCenter]removeObserver:self];
}

- (void)configSubview{
    //添加底部输入框
    [self addSubviews];
    
    //布局子控件
    [self autoLayoutSubviews];
}

#pragma mark 创建控件方法
/**
 *  添加TableView
 */
- (void)addSubviews{
    //1.添加tableView
    UITableView *tableView = [[UITableView alloc]init];
    tableView.dataSource = self;
    tableView.delegate = self;
    tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
    tableView.backgroundColor = [UIColor clearColor];
    tableView.translatesAutoresizingMaskIntoConstraints = NO;
    [self.view addSubview:tableView];
    self.tableView = tableView;
    
    //2.添加返回按钮
    UIButton *backBtn=[[UIButton alloc]init];
    backBtn.translatesAutoresizingMaskIntoConstraints = NO;
    [backBtn setImage:[UIImage imageNamed:@"back"] forState:UIControlStateNormal];
    [backBtn addTarget:self action:@selector(back) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:backBtn];
    self.backBtn = backBtn;
    
    //3.添加输入框
    JQTextView *textView = [[JQTextView alloc]init];
    textView.delegate = self;
    textView.font = [UIFont systemFontOfSize:14];
    textView.placeHoder = @"请输入要查询的内容";
    [self.view addSubview:textView];
    self.textView = textView;
    
    //4.添加发送按钮
    UIButton *sendBtn = [[UIButton alloc]init];
    sendBtn.translatesAutoresizingMaskIntoConstraints = NO;
    [sendBtn setImage:[UIImage imageNamed:@"send"] forState:UIControlStateNormal];
    [sendBtn addTarget:self action:@selector(send:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:sendBtn];
    self.sendBtn = sendBtn;
}

/**
 *  布局子控件
 */
- (void)autoLayoutSubviews{
    NSDictionary *views = NSDictionaryOfVariableBindings(_textView,_tableView,_backBtn,_sendBtn);
    NSDictionary *metrics = @{@"margin":@8};
    
    NSArray *constrain01 = [NSLayoutConstraint constraintsWithVisualFormat:@"H:|-margin-[_backBtn(30)]-margin-[_textView]-margin-[_sendBtn(==_backBtn)]-margin-|" options:NSLayoutFormatAlignAllCenterY metrics:metrics views:views];
    
    NSArray *constrain02 = [NSLayoutConstraint constraintsWithVisualFormat:@"V:|-20-[_tableView]-margin-[_textView]-margin-|" options:0 metrics:metrics views:views];
    
    NSArray *constrain03 = [NSLayoutConstraint constraintsWithVisualFormat:@"H:|-0-[_tableView]-0-|" options:0 metrics:metrics views:views];
    
    NSArray *constrain04 = [NSLayoutConstraint constraintsWithVisualFormat:@"V:[_backBtn(30)]" options:0 metrics:metrics views:views];
    
    NSArray *constrain05 = [NSLayoutConstraint constraintsWithVisualFormat:@"V:[_sendBtn(==_backBtn)]" options:0 metrics:metrics views:views];
    
    NSLayoutConstraint *constrainH = [NSLayoutConstraint constraintWithItem:_textView attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationEqual toItem:nil attribute:NSLayoutAttributeWidth multiplier:1 constant:20];
    //->给textView赋值高度约束,让其可以自适应高度
    _textView.constrainH = constrainH;
    
    [self.view addConstraints:constrain01];
    [self.view addConstraints:constrain02];
    [self.view addConstraints:constrain03];
    [self.view addConstraints:constrain04];
    [self.view addConstraints:constrain05];
    [_textView addConstraint:constrainH];
}

#pragma mark 点击方法

- (void)back{
    //先退回键盘
    [self.view endEditing:YES];
    [self dismissViewControllerAnimated:YES completion:nil];
}

/**
 *  点击发送button
 */
- (void)send:(UIButton *)btn{
    NSString *queryStr = self.textView.text;
    
    //0.判断输入框是否为空
    if (queryStr.length <= 0)
        return;
    
    //1.发送查询的单词到聊天框
    [self sendWordMsg:self.textView.text];
    
    //2.获取结果
    [JQQueryTool queryWord:queryStr completion:^(JQWord *word) {
        if (word) { //如果查询到了单词翻译,那么返回word对象
            [JQQueryTool queryExample:queryStr completion:^(NSString *example) {
                JQMessage *message=[[JQMessage alloc]init];
                message.type=JQMessageTypeWordInfo;
                message.word = word;
                word.examples = example;
                JQMessageFrame *messageFrame=[JQMessageFrame messageFrameWithMessage:message];
                [self.messageFrames addObject:messageFrame];
                [self.tableView reloadData];
                
                //4.滚到最后一行
                [self scrollToLastRow];
            }];
        }else{
            [JQQueryTool queryTranslation:queryStr completion:^(NSString *translation) {
                JQMessage *message=[[JQMessage alloc]init];
                message.type=JQMessageTypeTranslation;
                message.text=translation;
                JQMessageFrame *msgFrame=[JQMessageFrame messageFrameWithMessage:message];
                [self.messageFrames addObject:msgFrame];
                [self.tableView reloadData];
                
                //4.滚到最后一行
                [self scrollToLastRow];
            }];
        }
    }];
    /*
     先查询单词的基本信息,如果没有查到对应单词翻译,那么转为查询句子翻译
     */
    
    //3.回收键盘
    [self.view endEditing:YES];
    
    //4.清空文本
    self.textView.text = @"";
}

#pragma mark 其他方法
/**
 *  屏幕上显示用户发的 查询信息
 */
- (void)sendWordMsg:(NSString *)word_name{
    JQMessage *message=[[JQMessage alloc]init];
    message.text=word_name;
    message.type=JQMessageTypeWord;
    JQMessageFrame *messageFrame=[JQMessageFrame messageFrameWithMessage:message];
    [self.messageFrames addObject:messageFrame];

    [self.tableView reloadData];
}

/**
 *  判断是否外界有传递查询的单词:(比如在单词模块复制单词时)
 */
- (void)configParam{
    if (self.queryStr){
        self.textView.text = self.queryStr;
        [self send:nil];
    }
}

#pragma mark 通知响应方法
/**
 *  当键盘改变了frame(位置和尺寸)的时候调用
 */

- (void)keyboardWillChangeFrame:(NSNotification *)note
{
    // 0.取出键盘动画的时间
    CGFloat duration = [note.userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue];
    
    // 1.取得键盘最后的frame
    CGRect keyboardFrame = [note.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
    
    // 2.计算控制器的view需要平移的距离
    CGFloat transformY = keyboardFrame.origin.y - self.view.frame.size.height;
    
    // 3.执行动画
    __block __weak typeof(self) temp=self;
    [UIView animateWithDuration:duration animations:^{
        temp.view.transform = CGAffineTransformMakeTranslation(0, transformY);
    }];
}

#pragma mark UITableViewDelegate 代理方法

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    return self.messageFrames.count;
}

- (JQMessageCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    JQMessageCell *cell=[JQMessageCell cellWithTableView:tableView];
    cell.messageFrame=self.messageFrames[indexPath.row];
    return cell;
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
    JQMessageFrame *messageFrame=self.messageFrames[indexPath.row];
    return messageFrame.cellHeight;
}

#pragma mark UITextViewDelegate 代理方法

- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text{
    if ([text isEqualToString:@"\n"]) {     //换行相当于是发送
        [self send:nil];
        return NO;
    }
    return YES;
    /*要么输入换行发送,要么点击发送按钮*/
}

#pragma mark UIScrollViewDelegate 代理方法

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{
    [self.view endEditing:YES];
    [self.view endEditing:YES];
}

#pragma mark 内部工具方法
/**
 *  滚动到最后一行
 */
- (void)scrollToLastRow{
    NSIndexPath *lastPath = [NSIndexPath indexPathForRow:self.messageFrames.count - 1 inSection:0];
    [self.tableView scrollToRowAtIndexPath:lastPath atScrollPosition:UITableViewScrollPositionBottom animated:YES];
}

/**
 *  tableView刷新插入的最后一行数据
 */
- (void)tableViewInsertLastRow{
    NSIndexPath *indexPath=[NSIndexPath indexPathForRow:self.messageFrames.count-1 inSection:0];
    [self.tableView insertRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationNone];
}

@end

JQMessageFrame

@interface JQMessageFrame : NSObject
@property (nonatomic,assign)CGRect iconFrame;//头像frame
@property (nonatomic,assign)CGRect textFrame;//文本frame()
@property (nonatomic,assign)CGRect cardViewFrame;
@property (nonatomic,assign)CGFloat cellHeight;//cell的高度

@property (nonatomic,strong)JQMessage *message;//消息

+ (instancetype)messageFrameWithMessage:(JQMessage *)message;
- (instancetype)initWithMessage:(JQMessage *)message;

@end

#define JQTextPadding 20   //用于内边距
#import "JQMessageFrame.h"
#import "JQMessage.h"

@implementation JQMessageFrame
+ (instancetype)messageFrameWithMessage:(JQMessage *)message{
    return [[self alloc]initWithMessage:message];
}

- (instancetype)initWithMessage:(JQMessage *)message{
    self=[super init];
    if(self){
        _message=message;
        
        // 间距
        CGFloat padding = 10;
        
        // 屏幕的宽度
        CGFloat screenW = [UIScreen mainScreen].bounds.size.width;
        
        // 2.头像:(根据JQMessageType来判断头像的X)
        CGFloat iconY = padding;
        CGFloat iconW = 40;
        CGFloat iconH = 40;
        CGFloat iconX;
        if (message.type == JQMessageTypeWord) {// word
            iconX = screenW - padding - iconW;
            
        } else {
            iconX = padding;
        }
        _iconFrame = CGRectMake(iconX, iconY, iconW, iconH);
        
        
        // 3.发送的单词或者翻译结果
        if (message.type==JQMessageTypeWord || message.type==JQMessageTypeTranslation) {
            // 3.正文
            CGFloat textY = iconY;
            // 文字的尺寸
            CGSize textSize = [message.text sizeWithFont:JQFont maxSize:CGSizeMake(150, MAXFLOAT)];
            CGSize textBtnSize = CGSizeMake(textSize.width + JQTextPadding * 2, textSize.height + JQTextPadding * 2);
            
            CGFloat textX=0;
            if (message.type==JQMessageTypeTranslation) {
                textX=CGRectGetMaxX(_iconFrame) +padding;
            }else{
                textX=iconX - padding - textBtnSize.width;
            }
    
            _textFrame = (CGRect){{textX, textY}, textBtnSize};
        }
        //4.单词信息
        else{ //给cardView尺寸
            CGFloat cardViewW = 230;
            CGFloat cardViewH = 430;
            CGFloat cardViewY = CGRectGetMaxY(_iconFrame)+padding;
            CGFloat cardViewX = (JQMainScreenSize.width-cardViewW)*0.5;
            _cardViewFrame=(CGRect){{cardViewX,cardViewY},cardViewW,cardViewH};//CGRectMake(cardViewX, cardViewY, cardViewW, cardViewH);
            #warning CGRect另类写法
        }

        
        // 4.cell的高度
        CGFloat textMaxY = CGRectGetMaxY(_textFrame);
        CGFloat iconMaxY = CGRectGetMaxY(_iconFrame);
        CGFloat cardViewMaxY = CGRectGetMaxY(_cardViewFrame);
        _cellHeight =  MAX(cardViewMaxY, MAX(textMaxY, iconMaxY))  + padding;

    }
    return self;
}

@end
/*
 通过传递过来的message信息来构造messageFrame
 1.头像
 如果 message.type == JQMessageTypeWord 说明是发送方
 那么头像的位置在右边,否则是查询结果,那么头像位置在左边
 设置对应_iconFrame
 
 2.文本
 如果 message.type == JQMessageTypeWordInfo 那么说明查询
    到了单词信息,那么给_cardViewFrame设置frame
 否则 message.type == JQMessageTypeWord或JQMessageTypeTranslation
 那么给_textFrame赋值frame
 
 3.计算cell的高度
 */

JQMessgae

typedef enum {
    JQMessageTypeWord = 0, // 单词
    JQMessageTypeWordInfo,   // 单词信息
    JQMessageTypeTranslation  //翻译
} JQMessageType;

#import <Foundation/Foundation.h>
#import "JQWord.h"

@interface JQMessage : NSObject
/**
 *  聊天内容
 */
@property (nonatomic, copy) NSString *text;

/**
 *  信息的类型
 */
@property (nonatomic, assign) JQMessageType type;

/**
 *  单词
 */
@property (nonatomic,strong)JQWord *word;

@end

JQMessageCell

#import <UIKit/UIKit.h>
#import "JQMessageFrame.h"
#import "JQMessage.h"
#import "JQCardView.h"

@interface JQMessageCell : UITableViewCell

@property (nonatomic,strong)JQMessageFrame *messageFrame;
+ (instancetype)cellWithTableView:(UITableView *)tableView;
@end

#define JQTextPadding 20 //文本内边距
#import "JQMessageCell.h"
#import "JQAddWordController.h"
#import "JQWordTool.h"
#import "JQButton.h"

@interface JQMessageCell ()
@property (nonatomic,weak) JQButton *textBtn;
@property (nonatomic,weak)JQCardView *cardView;
@property (nonatomic,weak)UIImageView *iconImgView;
@end

@implementation JQMessageCell

+ (instancetype)cellWithTableView:(UITableView *)tableView{
    static NSString *ID=@"JQMessaeg";
    JQMessageCell *messageCell=[tableView dequeueReusableCellWithIdentifier:ID];
    if (!messageCell) {
        messageCell=[[JQMessageCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:ID];
    }
    //不要选中状态
    messageCell.selectionStyle = UITableViewCellSelectionStyleNone;
    return messageCell;
}

/**
 *  重写该方法来创建子控件
 */
- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier{
    self=[super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {
        [self createSubControl];
    }
    return self;
}

/**
 *  创建子控件
 */
- (void)createSubControl{
    //1.头像
    UIImageView *iconImgView=[[UIImageView alloc]init];
    [self.contentView addSubview:iconImgView];
    self.iconImgView=iconImgView;
    
    //2.文本
    JQButton *textBtn=[[JQButton alloc]init];
    textBtn.titleLabel.font=JQFont;
    [textBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    textBtn.titleLabel.numberOfLines=0;//自动换行
    //->设置文本按钮内边距,这样拉伸的北京图片才能完整摆放文本内容
    textBtn.contentEdgeInsets=UIEdgeInsetsMake(JQTextPadding, JQTextPadding, JQTextPadding, JQTextPadding);
    [textBtn setBackgroundImage:[UIImage resizedImage:@"chat_send_nor"] forState:UIControlStateNormal];
    [self.contentView addSubview:textBtn];
    self.textBtn=textBtn;
    //->添加点击事件
    [textBtn addTarget:self action:@selector(copy:) forControlEvents:UIControlEventTouchUpInside];
    
    //3.cardView
    JQCardView *cardView=[[JQCardView alloc]init];
    [self.contentView addSubview:cardView];
    self.cardView=cardView;
    
    //背景色
    self.backgroundColor=[UIColor clearColor];
}

/**
 *  设置数据和Frame
 */
- (void)setMessageFrame:(JQMessageFrame *)messageFrame
{
    _messageFrame = messageFrame;
    
    JQMessage *message = messageFrame.message;
    
    // 2.头像
    NSString *icon = (message.type == JQMessageTypeWord) ? @"me" : @"JQWord";
    self.iconImgView.image = [UIImage imageNamed:icon];
    self.iconImgView.frame = messageFrame.iconFrame;
    
    // 3.正文
    [self.textBtn setTitle:message.text forState:UIControlStateNormal];
    self.textBtn.frame = messageFrame.textFrame;
    if (message.type==JQMessageTypeTranslation) {
        [self.textBtn setBackgroundImage:[UIImage resizedImage:@"chat_recive_nor"] forState:UIControlStateNormal];
        
        [self.textBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    }

    // 4.cardView
    self.cardView.frame=messageFrame.cardViewFrame;
    self.cardView.word=message.word;
    self.cardView.editTitle=@"添加";
    //->添加操作
    __weak typeof(self) messageCell=self;
    self.cardView.editAction=^(){
        if (!message.word) {
            return ;
        }
        [JQWordTool addWord:message.word];
        JQAddWordController *VC=(JQAddWordController *)messageCell.parentViewController;
        //2.销毁当前控制器
        [VC dismissViewControllerAnimated:YES completion:nil];
    };
}

- (BOOL)canBecomeFirstResponder{
    return YES;
}

#pragma mark 按钮实现弹出菜单控制器
/**
 *  允许用@select()方式调用指定方法
 */
-(BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
    if (action == @selector(copyItemClicked:)) {
        return YES;
    }
    return NO;
}

- (void)copy:(JQButton *)btn{

    [btn becomeFirstResponder];
    
    UIMenuController *menu=[UIMenuController sharedMenuController];
    UIMenuItem *copyItem = [[UIMenuItem alloc] initWithTitle:@"复制" action:@selector(copyItemClicked:)];
    /*@selector(copyItemClicked:) 必须加":"不然显示不出来*/
  
    [menu setMenuItems:[NSArray arrayWithObjects:copyItem,nil]];
    [menu setTargetRect:btn.frame inView:self];
    [menu setMenuVisible:YES animated:YES];
}

- (void)copyItemClicked:(UIMenuController *)menu{
    UIPasteboard *board = [UIPasteboard generalPasteboard];
    board.string = self.textBtn.currentTitle;
}

@end

JQQueryTool

#import <Foundation/Foundation.h>
#import "JQWord.h"

@interface JQQueryTool : NSObject
+ (void)queryWord:(NSString *)wordName completion:(void (^)(JQWord *word))completion;

+ (void)queryExample:(NSString *)wordName completion:(void (^)(NSString *example))completion;

+ (void)queryTranslation:(NSString *)wordName completion:(void (^)(NSString *translation))completion;
@end

#import "JQQueryTool.h"

@implementation JQQueryTool
+ (void)queryWord:(NSString *)wordName completion:(void (^)(JQWord *word))completion{
    //关闭菊花
    [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
    AFHTTPSessionManager *manager=[AFHTTPSessionManager manager];
    manager.requestSerializer.timeoutInterval=5.0;
    //参数
    NSMutableDictionary *params=[NSMutableDictionary dictionary];
    params[@"keyfrom"]=@"wsxxjqr";
    params[@"key"]=@"1645610927";
    params[@"type"]=@"data";
    params[@"doctype"]=@"json";
    params[@"version"]=@"1.1";
    params[@"q"]=wordName;
    
    
    [manager GET:@"http://fanyi.youdao.com/openapi.do" parameters:params progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        //关闭菊花
        [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
        
        //1.获得基本数据:单词 音标  词义
        JQWord *word=[JQWord wordWithDict:responseObject[@"basic"]];
        word.word_name=wordName;
        if(completion){
            if (word.explains.count<=0)
                completion (nil);
            else
                completion (word);
        }
        
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        [SVProgressHUD showErrorWithStatus:@"请求失败"];
        //关闭菊花
        [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
        if(completion){
            completion (nil);
        }
    }];

}

+ (void)queryExample:(NSString *)wordName completion:(void (^)(NSString *example))completion{

    //拼接查询路径
    NSString *convert_word=[wordName stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLHostAllowedCharacterSet]];
    #warning word_name有可能是中文,必须转码
    NSString *urlStr=[NSString stringWithFormat:@"http://dj.iciba.com/%@",convert_word];
    NSURL *url=[NSURL URLWithString:urlStr];
    //资源str
    NSString *resourceStr=[NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:nil];
    //:得到结果数组
    NSArray *resultArr=[resourceStr arrFromStr:@"con=\"" toStr:@"\"" excStr:@"http" count:6];
    
    //:数组中英拼接
    NSMutableString *exampleStr=[NSMutableString string];
    for (int i=0; i<resultArr.count; i+=2) {
        [exampleStr appendString:[NSString stringWithFormat:@"%@\n",resultArr[i]]];
        [exampleStr appendString:[NSString stringWithFormat:@"%@\n\n",resultArr[i+1]]];
    }
    
    if (completion) {
        completion(exampleStr);
    }
}

/**
 *  使用百度api查询句子翻译
 */
+ (void)queryTranslation:(NSString *)wordName completion:(void (^)(NSString *translation))completion{
    //显示菊花(表示正在加载单词对应信息)
    [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
    
    AFHTTPSessionManager *manager=[AFHTTPSessionManager manager];
    manager.requestSerializer.timeoutInterval=5.0;
    //参数
    NSMutableDictionary *params=[NSMutableDictionary dictionary];
    params[@"q"]=wordName;
    params[@"from"]= (wordName.hasChinese?@"zh":@"en");//使用分类判断单词中时候包含中文
     params[@"to"]  = (wordName.hasChinese?@"en":@"zh");
    params[@"appid"] = @"20160529000022355";
    params[@"salt"] = @(arc4random_uniform(10)).stringValue;
    NSString *sign = [NSString stringWithFormat:@"%@%@%@%@",params[@"appid"],params[@"q"],params[@"salt"],@"ur3weJBGAhDn5FmJfJgh"];
    params[@"sign"] = [sign md5String];
    
    [manager GET:@"http://api.fanyi.baidu.com/api/trans/vip/translate" parameters:params progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        //关闭菊花
        [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
        
        NSString *str=[responseObject[@"trans_result"] firstObject][@"dst"];
        if (completion){
            completion(str);
        }
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        //关闭菊花
        [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
        
        [SVProgressHUD showErrorWithStatus:@"请求失败"];
        if (completion){
            completion(@"无");
        }
    }];

}

@end