File Handling

Following Methods are used in File Handling

Check if a File Exists at a Path

NSFileManager *fileManager = [NSFileManager defaultManager];
//Get documents directory
NSArray *directoryPaths = NSSearchPathForDirectoriesInDomains
(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectoryPath = [directoryPaths objectAtIndex:0];
if ([fileManager fileExistsAtPath:@""]==YES) {
NSLog(@"File exists");
}

Comparing Two File Contents

if ([fileManager contentsEqualAtPath:@"FilePath1" andPath:@" FilePath2"]) {
NSLog(@"Same content");
}

Check if Writable, Readable, and Executable

if ([fileManager isWritableFileAtPath:@"FilePath"]) {
NSLog(@"isWritable");
}
if ([fileManager isReadableFileAtPath:@"FilePath"]) {
NSLog(@"isReadable");
}
if ( [fileManager isExecutableFileAtPath:@"FilePath"]){
NSLog(@"is Executable");
}

Move File

if([fileManager moveItemAtPath:@"FilePath1" 
toPath:@"FilePath2" error:NULL]){
NSLog(@"Moved successfully");
}

Copy File

if ([fileManager copyItemAtPath:@"FilePath1" 
toPath:@"FilePath2" error:NULL]) {
NSLog(@"Copied successfully");
}

Remove File

if ([fileManager removeItemAtPath:@"FilePath" error:NULL]) {
NSLog(@"Removed successfully");
}

Read File

NSData *data = [fileManager contentsAtPath:@"Path"];

Write File

[fileManager createFileAtPath:@"" contents:data attributes:nil];
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