MacOS 开发

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一、核心代码

1、获取全路径下该文件的行数

#pragma mark - 获取全路径下该文件的行数- (int)rows:(NSString *)filepath{    char c;    int  h = 0;    FILE *fp;    fp = fopen([filepath UTF8String], "r");    if (fp == NULL){        return -1;    }    while ((c = fgetc(fp)) != EOF) {        if (c == '\n')            h++;        else {            c = fgetc(fp);//这里处理最后一行可能没有换行标记            if (c == EOF){                h++;                break;            } else if (c == '\n')                h++;        }    }    return h;}

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2、获取全路径下该文件夹下全部文件的行数总和

#pragma mark - 获取全路径下该文件夹下全部文件的行数总和- (void)getNumsOfFilePath:(NSString *)filePath{    NSLog(@"文件路径：%@", filePath);    self.pathLabel.stringValue = filePath;    //检查文件是否存在    NSFileManager *filemanager = [NSFileManager defaultManager];    if ([filemanager fileExistsAtPath:filePath]) {        int num = 0;        NSArray *arr = [self GetAllDirInPath:filePath];        for (NSString *inpath in arr) {            num += [self rows:inpath];        }        self.rowsLabel.stringValue = [NSString stringWithFormat:@"总行数: %d", num];    } else {        self.rowsLabel.stringValue = @"请选择正确的路径";    }}

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3、获取inpath 路径下面所有合格(.h/.m)的文件路径

#pragma mark - 获取inpath 路径下面所有合格(.h/.m)的文件路径- (NSArray *)GetAllDirInPath:(NSString *)inpath{    NSFileManager *fileManager = [NSFileManager defaultManager];    NSMutableArray *dirArray = [[NSMutableArray alloc] init];    BOOL isDir = NO;    [fileManager fileExistsAtPath:inpath isDirectory:(&isDir)];    if (isDir == NO){        if ([self checkClassFile:inpath]){            [dirArray addObject:inpath];        }    }    isDir = NO;    NSError *error = nil;    NSArray *fileList = nil;    //fileList便是包含有该文件夹下所有文件的文件名及文件夹名的数组    fileList = [fileManager contentsOfDirectoryAtPath:inpath error:&error];    //在上面那段程序中获得的fileList中列出文件夹名    for (NSString *file in fileList) {        NSString *path = [inpath stringByAppendingPathComponent:file];        [fileManager fileExistsAtPath:path isDirectory:(&isDir)];        if (!isDir) {            if ([self checkClassFile:path]){                [dirArray addObject:path];            }        } else {            [dirArray addObjectsFromArray:[self GetAllDirInPath:path]];        }        isDir = NO;    }//    NSLog(@"dirArray : %@",dirArray);    return dirArray;}#pragma mark - 检查文件后缀名- (BOOL)checkClassFile:(NSString *)filePath {    NSString *extensionName = [filePath pathExtension];    //    NSLog(@"后缀名：%@", extensionName);    if ([extensionName isEqualToString:@"h"] ||        [extensionName isEqualToString:@"m"]){        return YES;    }    return NO;}

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4、打开选择文件夹

这里只选择了一个文件夹，你也可以改为多选。

- (void)pickFile{    NSOpenPanel* panel = [NSOpenPanel openPanel];    [panel setAllowsMultipleSelection:YES];  //是否允许多选file    [panel setCanChooseFiles:YES];    [panel setCanChooseDirectories:YES];    [panel beginWithCompletionHandler:^(NSInteger result) {        if (result == NSOKButton) {            NSMutableArray* filePaths = [[NSMutableArray alloc] init];            for (NSURL* elemnet in [panel URLs]) {                [filePaths addObject:[elemnet path]];            }            NSLog(@"filePaths : %@",filePaths);            if (filePaths.count > 0) {                [self getNumsOfFilePath:filePaths.firstObject];            }        }    }];}

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二、推荐 Demo - PPRows

GitHub 上搜索，即可下载。可拖拽选择文件夹，界面效果如下：