I'm trying to parce my collocation.json file from asset file in kotlin. I wrote some codes for this. There is a json file named collocations.json in my own asset file and I want to parse it, but when I run the project, the following error appears. What is the reason of this ?
ERROR
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.enestigli.dictionaryapp, PID: 10313
kotlinx.serialization.json.internal.JsonDecodingException: Expected start of the object '{', but had 'EOF' instead
JSON input: collocations.json
at kotlinx.serialization.json.internal.JsonExceptionsKt.JsonDecodingException(JsonExceptions.kt:24)
at kotlinx.serialization.json.internal.JsonExceptionsKt.JsonDecodingException(JsonExceptions.kt:32)
at kotlinx.serialization.json.internal.AbstractJsonLexer.fail(AbstractJsonLexer.kt:524)
at kotlinx.serialization.json.internal.AbstractJsonLexer.fail$kotlinx_serialization_json(AbstractJsonLexer.kt:221)
at kotlinx.serialization.json.internal.AbstractJsonLexer.unexpectedToken(AbstractJsonLexer.kt:204)
at kotlinx.serialization.json.internal.StringJsonLexer.consumeNextToken(StringJsonLexer.kt:74)
at kotlinx.serialization.json.internal.StreamingJsonDecoder.beginStructure(StreamingJsonDecoder.kt:41)
at kotlinx.serialization.internal.AbstractCollectionSerializer.merge(CollectionSerializers.kt:29)
at kotlinx.serialization.internal.AbstractCollectionSerializer.deserialize(CollectionSerializers.kt:43)
at kotlinx.serialization.json.internal.PolymorphicKt.decodeSerializableValuePolymorphic(Polymorphic.kt:59)
at kotlinx.serialization.json.internal.StreamingJsonDecoder.decodeSerializableValue(StreamingJsonDecoder.kt:36)
at kotlinx.serialization.json.Json.decodeFromString(Json.kt:100)
at com.enestigli.dictionaryapp.presentation.CollocationScreen.CollocationScreenKt$gridView$2$1$1$1$1$1$1.invoke(CollocationScreen.kt:270)
at com.enestigli.dictionaryapp.presentation.CollocationScreen.CollocationScreenKt$gridView$2$1$1$1$1$1$1.invoke(CollocationScreen.kt:148)
at androidx.compose.foundation.ClickableKt$clickable$4$gesture$1$2.invoke-k-4lQ0M(Clickable.kt:153)
at androidx.compose.foundation.ClickableKt$clickable$4$gesture$1$2.invoke(Clickable.kt:142)
at androidx.compose.foundation.gestures.TapGestureDetectorKt$detectTapAndPress$2$1$1.invokeSuspend(TapGestureDetector.kt:220)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTaskKt.resume(DispatchedTask.kt:178)
at kotlinx.coroutines.DispatchedTaskKt.dispatch(DispatchedTask.kt:166)
at kotlinx.coroutines.CancellableContinuationImpl.dispatchResume(CancellableContinuationImpl.kt:397)
at kotlinx.coroutines.CancellableContinuationImpl.resumeImpl(CancellableContinuationImpl.kt:431)
at kotlinx.coroutines.CancellableContinuationImpl.resumeImpl$default(CancellableContinuationImpl.kt:420)
at kotlinx.coroutines.CancellableContinuationImpl.resumeWith(CancellableContinuationImpl.kt:328)
at androidx.compose.ui.input.pointer.SuspendingPointerInputFilter$PointerEventHandlerCoroutine.offerPointerEvent(SuspendingPointerInputFilter.kt:560)
at androidx.compose.ui.input.pointer.SuspendingPointerInputFilter.dispatchPointerEvent(SuspendingPointerInputFilter.kt:452)
at androidx.compose.ui.input.pointer.SuspendingPointerInputFilter.onPointerEvent-H0pRuoY(SuspendingPointerInputFilter.kt:465)
at androidx.compose.ui.input.pointer.Node.dispatchMainEventPass(HitPathTracker.kt:310)
at androidx.compose.ui.input.pointer.Node.dispatchMainEventPass(HitPathTracker.kt:297)
at androidx.compose.ui.input.pointer.Node.dispatchMainEventPass(HitPathTracker.kt:297)
at androidx.compose.ui.input.pointer.Node.dispatchMainEventPass(HitPathTracker.kt:297)
at androidx.compose.ui.input.pointer.Node.dispatchMainEventPass(HitPathTracker.kt:297)
at androidx.compose.ui.input.pointer.Node.dispatchMainEventPass(HitPathTracker.kt:297)
at androidx.compose.ui.input.pointer.NodeParent.dispatchMainEventPass(HitPathTracker.kt:179)
at androidx.compose.ui.input.pointer.HitPathTracker.dispatchChanges(HitPathTracker.kt:98)
at androidx.compose.ui.input.pointer.PointerInputEventProcessor.process-BIzXfog(PointerInputEventProcessor.kt:80)
at androidx.compose.ui.platform.AndroidComposeView.sendMotionEvent-8iAsVTc(AndroidComposeView.android.kt:1261)
E/AndroidRuntime: at androidx.compose.ui.platform.AndroidComposeView.handleMotionEvent-8iAsVTc(AndroidComposeView.android.kt:1211)
at androidx.compose.ui.platform.AndroidComposeView.dispatchTouchEvent(AndroidComposeView.android.kt:1150)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3121)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2802)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3121)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2802)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3121)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2802)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3121)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2802)
at com.android.internal.policy.DecorView.superDispatchTouchEvent(DecorView.java:498)
at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1899)
at android.app.Activity.dispatchTouchEvent(Activity.java:4262)
at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:456)
at android.view.View.dispatchPointerEvent(View.java:15263)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:6548)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:6348)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:5804)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:5861)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:5827)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:5992)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:5835)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:6049)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:5808)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:5861)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:5827)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:5835)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:5808)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:8857)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:8808)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:8777)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:8980)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:267)
at android.os.MessageQueue.nativePollOnce(Native Method)
at android.os.MessageQueue.next(MessageQueue.java:335)
at android.os.Looper.loopOnce(Looper.java:161)
at android.os.Looper.loop(Looper.java:288)
at android.app.ActivityThread.main(ActivityThread.java:7898)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)
Suppressed: kotlinx.coroutines.DiagnosticCoroutineContextException: [androidx.compose.ui.platform.MotionDurationScaleImpl@d43928e, androidx.compose.runtime.BroadcastFrameClock@440daaf, StandaloneCoroutine{Cancelling}@4989ebc, AndroidUiDispatcher@6c10e45]
my collocations.json file in asset
{
"A": [
{
"collocation": "above average",
"meaning": "more than average, esp. in amount, age, height, weight etc. "
},
{
"collocation": "absolutely necessary",
"meaning": "totally or completely necessary"
},
{
"collocation": "abuse drugs",
"meaning": "to use drugs in a way that's harmful to yourself or others"
},
{
"collocation": "abuse of power",
"meaning": "the harmful or unethical use of power"
}
],
"B": [
{
"collocation": "back pay",
"meaning": "money a worker earned in the past but hasn't been paid yet "
},
{
"collocation": "back road",
"meaning": "a small country road "
},
{
"collocation": "back street",
"meaning": "a street in a town or city that's away from major roads or central areas"
},
{
"collocation": "back taxes",
"meaning": "taxes that weren't paid when they were due"
},
{
"collocation": "bad breath",
"meaning": "breath that doesn't smell nice"
}],
this way it goes up to the letter W.
my data class
@Serializable
data class Collocation(
val collocation: String,
val meaning: String
)
I did something like this
fun loadCollocationJson(){
val json = "collocations.json"
val collocations = Json.decodeFromString<Map<String, List<Collocation>>>(json)
val collocationsForA = collocations["A"]
println("collocationsForA:"+ collocationsForA)
}
I wanted to bring the data starting with the letter A to be an example here. But it gives the above error. What can be the problem.?
SOLVE
I changed
val json = "collocations.json"
with this
val jsonStr : String = context.assets.open("collocations.json").bufferedReader().use { it.readText() }
