从mianbundle拷贝文件到sandbox中

这儿有段代码，教大家如何拷贝文件。

 

- (void) copySampleFilesToMyDocumentsFolder {
    NSError *error;
    NSFileManager *fileManager = [NSFileManager defaultManager];

    NSString *bundleRoot = [[NSBundle mainBundle] bundlePath];

    NSArray *dirContents = [fileManager contentsOfDirectoryAtPath: bundleRoot error: &error];
    NSArray *onlyPdf = [dirContents filteredArrayUsingPredicate: [NSPredicate predicateWithFormat: @"self ENDSWITH '.jpg'"]];
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDir = [paths objectAtIndex: 0];

    for (int i = 0; i < onlyPdf.count; i++) {
        NSString *pdfName = [onlyPdf objectAtIndex: i];

        NSString *docPdfFilePath = [documentsDir stringByAppendingPathComponent: pdfName];

        //Using NSFileManager we can perform many file system operations.
        BOOL success = [fileManager fileExistsAtPath: docPdfFilePath];

        if (!success) {
            NSString *samplePdfFile  = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent: pdfName];

            success = [fileManager copyItemAtPath: samplePdfFile toPath: docPdfFilePath error: &error];

            if (!success){}
                //              NSAssert1(0, @"Failed to copy file '%@'.", [error localizedDescription]);
                //debugLog(@"Failed to copy %@ file, error %@", pdfName, [error localizedDescription]);
            else {
                //debugLog(@"File copied %@ OK", pdfName);
            }
        }
        else {
            //debugLog(@"File exits %@, skip copy", pdfName);
        }
    }
}