Android JSONObject - How can I loop through a flat JSON object to get each key and value

Question

key1    value1      key2    value2      key3    value3      How I can get each item s key and value without knowing the key nor value beforehand

User · Answer

Short version of Franci s answer   for Iterator lt String gt  iter   json keys   iter hasNext           String key   iter next

User · Answer

You shold use the keys   or names   method   keys   will give you an iterator containing all the String property names in the object while names   will give you an array of all key String names   You can get the JSONObject documentation here  http   developer android com reference org json JSONObject html

User · Answer

You ll need to use an Iterator to loop through the keys to get their values    Here s a Kotlin implementation  you will realised that the way I got the string is using optString    which is expecting a String or a nullable value   val keys   jsonObject keys   while  keys hasNext          val key   keys next       val value   targetJson optString key

User · Answer

Take a look at the JSONObject reference   http   www json org javadoc org json JSONObject html  Without actually using the object  it looks like using either getNames   or keys   which returns an Iterator is the way to go

User · Answer

Use the keys   iterator to iterate over all the properties  and call get   for each   Iterator lt String gt  iter   json keys    while  iter hasNext          String key   iter next        try           Object value   json get key         catch  JSONException e               Something went wrong

[java] Android JSONObject - How can I loop through a flat JSON object to get each key and value

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