Save NSData always to the same file

Question

I want to save each `NSData` object to a temp directory in iOS and I want each new object to overwrite the old one. Objects will be of different formats and of different sizes. I know how do you get the path to the `NSTemporaryDirectory` but how on Earth can you overwrite old `NSData` file in there each time a new one is added?

Accepted Answer

Get the file.

Remove it from `NSTemporaryDirectory`.

```
[[NSFileManager defaultManager] removeItemAtPath:filePath error:&error];
```

Create a new file with same name and save it there.

```
[[NSData data] writeToFile:filePath options:NSDataWritingAtomic error:nil];
```

Or Simply you can over-write the file.

```
NSData *data = <all data>;
[data writeToFile:targetPath atomically:YES];
```

Save NSData always to the same file

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