How to fetching data JSON using react-native-dropdown? - react-native

Question

I want to fetching data from JSON using Dropdown lib,
but I can't display these JSON.
Here's the code I have tried:
this.state = {"diagnosis": {
"type": [
"Oncology",
"Hip And Knee"
],
"kode": [
"123",
"321",
"3232",
"1231"
],
"PrimaryCat": [
"contoh1",
"contoh2",
"contoh3"
],
"Location": [
"jakarta",
"bogor",
"depok",
"tangerang",
"bekasi"
],
"Encountrace": [
"kga",
"tau",
"isi",
"menunya"
],
"fracture": [
"ini",
"juga",
"kaga",
"tau",
"isinya"
],
"healing": [
"yang",
"pasti",
"penyembuhan"
]
}}
render() {
let data = [{
value: 'Banana',
}, {
value: 'Mango',
}, {
value: 'Pear',
}];
return (
<View>
<Dropdown
label="testing"
data={this.state.diagnosis.type}
/>
</View>
);
}
}
with above code, the dropdown just displaying two rows of type, but the name of oncology or hip and knee doesn't show,
here's the example screen:
Am I doing something wrong?

Answer 1

This will work if you change your json in following format,
this.state = {"diagnosis": {
"type": [
{
value: "Oncology",
}, {
value: "Hip And Knee"
}
],
rest of the formats will be as above.
If you do not want to change the format of your json then, you have to do minor changes in your react-native-material-dropdown code,
Please go to this path,
react-native-material-dropdown->src->components->dropdown->index.js
Please do some changes in index.js, change your valueExtractor function like this way,
valueExtractor: ( value = {}, index) => value,
Hope it helps to you.

Answer 2

try following.
{"diagnosis": {
"type": [
{
value: "Oncology"
},
{
value: "Hip And Knee
}
],
"kode": [
{
value: "123"
},
{
value: "321"
},
{
value: "3232"
},
{
value: "1231
}
],
"PrimaryCat": [
{
value: "contoh1"
},
{
value: "contoh2"
},
{
value: "contoh3
}
],
"Location": [
{
value: "jakarta"
},
{
value: "bogor"
},
{
value: "depok"
},
{
value: "tangerang"
},
{
value: "bekasi
}
],
"Encountrace": [
{
value: "kga"
},
{
value: "tau"
},
{
value: "isi"
},
{
value: "menunya
}
],
"fracture": [
{
value: "ini"
},
{
value: "juga"
},
{
value: "kaga"
},
{
value: "tau"
},
{
value: "isinya
}
],
"healing": [
{
value: "yang"
},
{
value: "pasti"
},
{
value: "penyembuhan
}
]
}