JSONArray.getString(1); where ["name",null] is the json array, throws a JSONArray[1] not a string exception only when proguard is enabled.
Am I missing something in my proguard rules?
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W4R10CK
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Glenford Fernandes
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are you using GSON? – Rahul Sharma Sep 20 '16 at 12:20
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2Please post your current proguard rules – Robert Estivill Sep 20 '16 at 12:31
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Take a look at this may help : https://stackoverflow.com/q/58720274/6071729 – A Farmanbar Jan 31 '20 at 09:08
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Please post your code. – Mir Milad Hosseiny Feb 01 '20 at 20:55
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String resCode = signObject.getString("status"); .where status key is an int. Same thing goes for JSONArray or JSONObject. – Poyyamozhi Ramakrishnan Feb 03 '20 at 05:44
1 Answers
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Did you try these methods:
/**
* Returns the value at {@code index} if it exists, coercing it if
* necessary. Returns the empty string if no such value exists.
*/
public String optString(int index)
or
/**
* Returns the value at {@code index} if it exists, coercing it if
* necessary. Returns {@code fallback} if no such value exists.
*/
public String optString(int index, String fallback)
Seem like does not return null for String
Tam Huynh
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Yes I have, they do work. But the existing project has getString all over.. Switching to optString is the last option. – Poyyamozhi Ramakrishnan Feb 07 '20 at 03:45
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By reading the code of `public String getString(int index)`, I can see it throws exceptions if your value is null and currently your input has null value. If you didn't catch the exception everywhere `getString` is used then bugs will keep appearing. Change the method is a hard but safe way – Tam Huynh Feb 07 '20 at 04:06