I have JSON response:

```
 {"error":100,"result":"{\"distance\":2.4,\"duration\":5,\"price\":0}"}

```

From this response I want to get a "distance" value for example. How to do it?

I tried to do like this: 

```
 String distance = String.valueOf(finalResponseDataJOSNObject.getDouble("distance"));

```

but string value is null. Any ideas?

**UPDATE:**

Finally we discovered that it was back-end issue and we fixed it. No additional operations like JSONObject conversation to String, special character removal, etc. was necessary.

Simply:

```
String distance =  
String.valueOf(finalResponseDataJOSNObject.getJSONObject("result").getDouble("di‌​stance"));

```