美文网首页
iOS开发 模拟支付宝收款语音播报

iOS开发 模拟支付宝收款语音播报

作者: 没穿秋裤 | 来源:发表于2019-03-11 20:46 被阅读0次

    背景

    之前一直用支付宝来薅羊毛,在猜测这个收款语音播报实现原理,我们公司也有推送播报,但是无法实现定制,所以一直想探其究竟。

    思路

    1. 实现把字面钱数转成口语化钱数?
    2. 如何定制语音播报的内容?

    实现

    问题1

    主要思路就是,往字面钱数组里面插入万,千,百,十等单位,最后拆成数组

    -(NSArray *)caculateNumber:(NSString *)primary
    {
        
        long money = primary.doubleValue*10000000000/100000000;// 钱数 单位是(分)
        
        NSString *str = [NSString stringWithFormat:@"%ld",money];
        
        NSArray *temArr = @[@"", @"万", @"亿"];
        
        NSArray *arr = @[@"十", @"百", @"千"];
        
        NSMutableArray <NSString *>*lArr = [[NSMutableArray alloc] init];
        
        long preMoney = money / 100;
        
        if (money%10 == 0 && money%100 == 0) {
            //不用展示
        }else{
            [lArr addObject:@"点"];
            long lastMoney = money;
            [lArr insertObject:[NSString stringWithFormat:@"%ld",lastMoney%10] atIndex:1];
            lastMoney = lastMoney /10;
            [lArr insertObject:[NSString stringWithFormat:@"%ld",lastMoney%10] atIndex:1];
        }
    
        NSString *preMoneyStr = [NSString stringWithFormat:@"%ld",preMoney];
        
        for (int i=0; i<preMoneyStr.length; i++) {
            
            int a = preMoney % 10;
            preMoney = preMoney/10;
            
            NSString *strCon = @"";
            
            if(i%4 == 0){
                
                NSString *aStr = [NSString stringWithFormat:@"%d",a];
                strCon = [NSString stringWithFormat:@"%@%@",a==0?@"":aStr,temArr[i/4]];
            }else{
                strCon = [NSString stringWithFormat:@"%d%@",a, a==0?@"":arr[i%4-1]];
            }
            
            [lArr insertObject:strCon atIndex:0];
        }
        
        //删除重叠的0
        for (long i=lArr.count-1; i>0; i--) {
            if (([lArr[i] isEqualToString: lArr[i-1]] && [lArr[i] isEqualToString:@"0"]) || (lArr[i].length == 0)) {
                [lArr removeObjectAtIndex:i];
            }
        }
        if ([lArr containsObject:@"点"]||[lArr containsObject:@"万"]||[lArr containsObject:@"亿"]) {
            NSArray *tmpedArr = @[@"点",@"万",@"亿"];
            for (int i=0; i<3; i++) {
                
                if([lArr containsObject:tmpedArr[i]]){
                    NSUInteger index = [lArr indexOfObject:tmpedArr[i]];
                    if ([lArr[index - 1] isEqualToString:@"0"] && i==0 && index > 1) {
                        [lArr removeObjectAtIndex:index-1];
                    }else if ([lArr[index - 1] isEqualToString:@"0"] && i!=0){
                        [lArr removeObjectAtIndex:index-1];
                    }
                }
            }
        }else{
            if ([lArr.lastObject isEqualToString:@"0"]) {
                [lArr removeLastObject];
            }
        }
        [lArr addObject:@"元"];
        NSString *final = [lArr componentsJoinedByString:@""];
        
        NSLog(@"?????%@\n%@",str, final );
        NSMutableArray *finalArr = [[NSMutableArray alloc] initWithObjects:@"帅哥刘阳到账", nil];
        for (int i=0; i<final.length; i++) {
            [finalArr addObject:[final substringWithRange:NSMakeRange(i, 1)]];
        }
        return finalArr;
    }
    
    

    问题2

    思路,就是将钱数的数组遍历,拿到每一项的语音文件,然后合成总的语音文件,最后再把这个总的文件读取出来。

    看我自己录制的语音素材(ps: 可以自己录制自己的,录制也是需要技巧的)

    image.png
    - (void)hecheng:(NSArray *)fileNameArray{
        
        /************************合成音频并播放*****************************/
        NSMutableArray *audioAssetArray = [[NSMutableArray alloc] init];
        NSMutableArray *durationArray = [[NSMutableArray alloc] init];
        [durationArray addObject:@(0)];
        
        AVMutableComposition *composition = [AVMutableComposition composition];
        
        CMTime allTime = kCMTimeZero;
        
        for (NSInteger i = 0; i < fileNameArray.count; i++) {
            NSString *auidoPath = [[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"%@",fileNameArray[i]] ofType:@"m4a"];
            AVURLAsset *audioAsset = [AVURLAsset assetWithURL:[NSURL fileURLWithPath:auidoPath]];
            [audioAssetArray addObject:audioAsset];
            
        
            // 音频轨道
            AVMutableCompositionTrack *audioTrack = [composition addMutableTrackWithMediaType:AVMediaTypeAudio preferredTrackID:0];
            
            // 音频素材轨道
            AVAssetTrack *audioAssetTrack = [[audioAsset tracksWithMediaType:AVMediaTypeAudio] firstObject];
            
            
            // 音频合并 - 插入音轨文件
            [audioTrack insertTimeRange:CMTimeRangeMake(kCMTimeZero, audioAsset.duration) ofTrack:audioAssetTrack atTime:allTime error:nil];
            
            // 更新当前的位置
            allTime = CMTimeAdd(allTime, audioAsset.duration);
            
        }
        
        // 合并后的文件导出 - `presetName`要和之后的`session.outputFileType`相对应。
        AVAssetExportSession *session = [[AVAssetExportSession alloc] initWithAsset:composition presetName:AVAssetExportPresetAppleM4A];
        NSString *outPutFilePath = [[NSHomeDirectory() stringByAppendingPathComponent:@"Documents"]  stringByAppendingPathComponent:@"test.m4a"];
        
        if ([[NSFileManager defaultManager] fileExistsAtPath:outPutFilePath]) {
            [[NSFileManager defaultManager] removeItemAtPath:outPutFilePath error:nil];
        }
        
        // 查看当前session支持的fileType类型
        NSLog(@"---%@",[session supportedFileTypes]);
        session.outputURL = [NSURL fileURLWithPath:outPutFilePath];
        session.outputFileType = AVFileTypeAppleM4A; //与上述的`present`相对应
        session.shouldOptimizeForNetworkUse = YES;   //优化网络
        
        [session exportAsynchronouslyWithCompletionHandler:^{
            
            NSLog(@"%@",[NSThread currentThread]);
            
            if (session.status == AVAssetExportSessionStatusCompleted) {
                NSLog(@"合并成功----%@", outPutFilePath);
                
                NSURL *url = [NSURL fileURLWithPath:outPutFilePath];
                static SystemSoundID soundID = 0;
                
                AudioServicesCreateSystemSoundID((__bridge CFURLRef _Nonnull)(url), &soundID);
                
                AudioServicesPlayAlertSoundWithCompletion(soundID, ^{
                    NSLog(@"播放完成");
                    AudioServicesDisposeSystemSoundID(soundID);
                });
                
            } else {
                // 其他情况, 具体请看这里`AVAssetExportSessionStatus`.
            }
    
        }];
        
        
    }
    

    具体的工程代码见下:
    https://github.com/1784777348ly/soundReport

    相关文章

      网友评论

          本文标题:iOS开发 模拟支付宝收款语音播报

          本文链接:https://www.haomeiwen.com/subject/aofipqtx.html