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Use new fragment result API

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This commit is contained in:
Mygod
2020-06-01 18:52:40 -04:00
parent 21e4700b60
commit bf352297ec
5 changed files with 82 additions and 71 deletions
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35
mobile/src/main/java/be/mygod/vpnhotspot/AlertDialogFragment.kt
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@@ -7,8 +7,10 @@ import android.os.Bundle
import android.os.Parcelable
import androidx.appcompat.app.AlertDialog
import androidx.appcompat.app.AppCompatDialogFragment
import androidx.core.os.bundleOf
import androidx.fragment.app.Fragment
import be.mygod.vpnhotspot.util.showAllowingStateLoss
import androidx.fragment.app.setFragmentResult
import androidx.fragment.app.setFragmentResultListener
import kotlinx.android.parcel.Parcelize
/**
@@ -17,33 +19,44 @@ import kotlinx.android.parcel.Parcelize
abstract class AlertDialogFragment<Arg : Parcelable, Ret : Parcelable> :
AppCompatDialogFragment(), DialogInterface.OnClickListener {
companion object {
private const val KEY_RESULT = "result"
private const val KEY_ARG = "arg"
private const val KEY_RET = "ret"
fun <T : Parcelable> getRet(data: Intent) = data.getParcelableExtra<T>(KEY_RET)!!
private const val KEY_WHICH = "which"
fun <Ret : Parcelable> setResultListener(fragment: Fragment, requestKey: String,
listener: (Int, Ret?) -> Unit) {
fragment.setFragmentResultListener(requestKey) { _, bundle ->
listener(bundle.getInt(KEY_WHICH, Activity.RESULT_CANCELED), bundle.getParcelable(KEY_RET))
}
}
inline fun <reified T : AlertDialogFragment<*, Ret>, Ret : Parcelable> setResultListener(
fragment: Fragment, noinline listener: (Int, Ret?) -> Unit) =
setResultListener(fragment, T::class.java.name, listener)
}
protected abstract fun AlertDialog.Builder.prepare(listener: DialogInterface.OnClickListener)
private val resultKey get() = requireArguments().getString(KEY_RESULT)
protected val arg by lazy { requireArguments().getParcelable<Arg>(KEY_ARG)!! }
protected open val ret: Ret? get() = null
fun withArg(arg: Arg) = apply { arguments = Bundle().apply { putParcelable(KEY_ARG, arg) } }
private fun args() = arguments ?: Bundle().also { arguments = it }
fun arg(arg: Arg) = args().putParcelable(KEY_ARG, arg)
fun key(resultKey: String = javaClass.name) = args().putString(KEY_RESULT, resultKey)
override fun onCreateDialog(savedInstanceState: Bundle?): AlertDialog =
AlertDialog.Builder(requireContext()).also { it.prepare(this) }.create()
override fun onClick(dialog: DialogInterface?, which: Int) {
targetFragment?.onActivityResult(targetRequestCode, which, ret?.let {
Intent().replaceExtras(Bundle().apply { putParcelable(KEY_RET, it) })
setFragmentResult(resultKey ?: return, Bundle().apply {
putInt(KEY_WHICH, which)
putParcelable(KEY_RET, ret ?: return@apply)
})
}
override fun onDismiss(dialog: DialogInterface) {
super.onDismiss(dialog)
targetFragment?.onActivityResult(targetRequestCode, Activity.RESULT_CANCELED, null)
}
fun show(target: Fragment, requestCode: Int = 0, tag: String = javaClass.simpleName) {
setTargetFragment(target, requestCode)
showAllowingStateLoss(target.parentFragmentManager, tag)
setFragmentResult(resultKey ?: return, bundleOf(KEY_WHICH to Activity.RESULT_CANCELED))
}
}