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
- 实现把字面钱数转成口语化钱数?
- 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
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