How to Json data parse to tablayout in kotlin? - json

Question

I have an json data. I want to parse it to the tabs.
when I use postman and send request.
result repsonse this image.
I already set interface API, and tried to call back response using retrofit. but I got fail. Check my code and How can I fix ViewPagerAdapter and MainActivity? Anyone can help?
Interface API
interface API{
#Headers("Content=Type:application/json","Authorization:token:String")
#GET("/store/category/info")
fun getcategory(#Header("Authorization") token: String?):Call<Category>
}
MainActivity
class MainActivity : AppCompatActivity() {
lateinit var tabLayout:TabLayout
lateinit var viewPager: ViewPager
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
val token = SharedPreference.getTokenInfo(applicationContext)
Client.retrofitService.getcategory(token).enqueue(object:Callback<Category>{
override fun onResponse(call: Call<Category>, response: Response<Category>) {
Log.d("test","Category complete")
viewPager = findViewById(R.id.viewpager) as ViewPager
setupViewPager(viewPager)
tabLayout = findViewById(R.id.category_tab_layout) as TabLayout
tabLayout.setupWithViewPager(viewPager)
}
override fun onFailure(call: Call<Category>, t: Throwable) {
Log.d("test","Category fail")
}
})
}
private fun setupViewPager(viewPager: ViewPager) {
var adapter: ViewPagerAdapter = ViewPagerAdapter(supportFragmentManager)
viewPager.adapter = adapter
}
}
ViewPagerAdapter
class ViewPagerAdapter: FragmentPagerAdapter {
private val mFragmentList: MutableList<Fragment> = mutableListOf()
private val mFragmentTitleList: MutableList<Child> = mutableListOf()
constructor(manager: FragmentManager) : super(manager)
override fun getItem(position: Int): Fragment {
return mFragmentList.get(position)
}
override fun getCount(): Int {
return mFragmentList.size
}
override fun getPageTitle(position: Int): CharSequence? {
return mFragmentTitleList.get(position).title
}
}

Answer 1

Try with this
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
val token = SharedPreference.getTokenInfo(applicationContext)
viewPager = findViewById(R.id.viewpager) as ViewPager
tabLayout = findViewById(R.id.category_tab_layout) as TabLayout
Client.retrofitService.getcategory(token).enqueue(object:Callback<Category>{
override fun onResponse(call: Call<Category>, response: Response<Category>) {
Log.d("test","Category complete")
setupViewPager(viewPager)
tabLayout.setupWithViewPager(viewPager)
}
override fun onFailure(call: Call<Category>, t: Throwable) {
Log.d("test","Category fail")
}
})
}