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#compose
Title
# compose
m
Mehmet Peker
09/10/2020, 10:11 AMhello everyone i finally add compose an existing project but i have a question.How can i do activity.onBackpressed on navigation icon click without use navigation library?
t
Timo Drick
09/10/2020, 10:17 AMSo i think the correct way would be to add a callback to your composable. And handle this callback at the point where you do setContent {} in your activty so you have access to the activity.
m
Mehmet Peker
09/10/2020, 10:39 AMThank you for your solution 😄 I was created fragment instance in companion object and call function but this way seems better
t
Timo Drick
09/10/2020, 10:45 AMThere is also another way to get the activity but maybe not what you should do:
Copy code
val activity = ContextAmbient.current as ActivitySo for navigation i would prefere the callback. But there are other use cases where you need an activity to use an system api and do not want to integrate it into your main activity
m
Mehmet Peker
09/10/2020, 11:01 AMOkey i know but how to initialize composable function before setcontent{}
Copy code
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
val binding = FragmentMessageBinding.inflate(LayoutInflater.from(requireContext()), container, false)
(binding.root as ViewGroup).setContent(Recomposer.current()) {
MessageScreen(this)
}
return binding.root
}
override fun onNavigationClick() {
requireActivity().onBackPressed()
}Sorry i must after setContent but how?
t
Timo Drick
09/10/2020, 11:05 AMYou should change your MessageScreen to have a callback ->
MessageScreen(onNavigaionClick: () -> Unit)Than you can write in the setContent part:
MessageScreen() { onNavigationClick() }I don't think it is a good idea to pass the fragment directly to the composables.
m
Mehmet Peker
09/10/2020, 11:11 AMNot working for me.App crashing after click
t
Timo Drick
09/10/2020, 11:11 AMCan you please post the error back stack
m
Mehmet Peker
09/10/2020, 11:18 AMA part of error 2020-09-10 141743.752 9866-9866/com.zikirmatik.digitaltasbeeh E/InputEventReceiver: Exception dispatching input event.
2020-09-10 141743.753 9866-9866/com.zikirmatik.digitaltasbeeh E/MessageQueue-JNI: Exception in MessageQueue callback: handleReceiveCallback
2020-09-10 141743.755 9866-9866/com.zikirmatik.digitaltasbeeh E/MessageQueue-JNI: java.lang.IllegalStateException: Internal state has not been set. This method should not be called in any place but after calls to onPointerInputSetup and before calls to onPointerInputTearDown or onCancel. Also, onCustomEvent must be called appropriately. See docs for details.
t
Timo Drick
09/10/2020, 11:19 AMSorry too less information to really help you. Maybe you could post the code of the MessageScreen?
Or just make a simplified version with just one button and try if it is working.
m
Mehmet Peker
09/10/2020, 11:22 AM2020-09-10 142111.400 10009-10126/com.zikirmatik.digitaltasbeeh E/eglCodecCommon: GoldfishAddressSpaceHostMemoryAllocator: ioctl_ping failed for device_type=5, ret=-1
2020-09-10 142131.526 10009-10009/com.zikirmatik.digitaltasbeeh E/InputEventReceiver: Exception dispatching input event.
2020-09-10 142131.527 10009-10009/com.zikirmatik.digitaltasbeeh E/MessageQueue-JNI: Exception in MessageQueue callback: handleReceiveCallback
2020-09-10 142131.531 10009-10009/com.zikirmatik.digitaltasbeeh E/MessageQueue-JNI: java.lang.IllegalStateException: Internal state has not been set. This method should not be called in any place but after calls to onPointerInputSetup and before calls to onPointerInputTearDown or onCancel. Also, onCustomEvent must be called appropriately. See docs for details.
at androidx.compose.ui.gesture.scrollorientationlocking.ScrollOrientationLocker.getPointersFor(ScrollOrientationLocker.kt:192)
at androidx.compose.ui.gesture.DragSlopExceededGestureFilter.onPointerInput-e3WT7_U(DragSlopExceededGestureFilter.kt:122)
at androidx.compose.ui.input.pointer.PointerInputFilter.onPointerEvent-d1fqKvQ(PointerEvent.kt:64)
at androidx.compose.ui.input.pointer.Node.dispatchToPointerInputFilter(HitPathTracker.kt:530)
at androidx.compose.ui.input.pointer.Node.dispatchChanges(HitPathTracker.kt:430)
at androidx.compose.ui.input.pointer.Node.dispatchChanges(HitPathTracker.kt:426)
at androidx.compose.ui.input.pointer.Node.dispatchChanges(HitPathTracker.kt:426)
at androidx.compose.ui.input.pointer.Node.dispatchChanges(HitPathTracker.kt:426)
at androidx.compose.ui.input.pointer.Node.dispatchChanges(HitPathTracker.kt:426)
at androidx.compose.ui.input.pointer.Node.dispatchChanges(HitPathTracker.kt:426)
at androidx.compose.ui.input.pointer.Node.dispatchChanges(HitPathTracker.kt:426)
at androidx.compose.ui.input.pointer.NodeParent.dispatchChanges(HitPathTracker.kt:282)
at androidx.compose.ui.input.pointer.HitPathTracker.dispatchChanges(HitPathTracker.kt:131)
at androidx.compose.ui.input.pointer.PointerInputEventProcessor.process-EhkylT0(PointerInputEventProcessor.kt:71)
at androidx.compose.ui.platform.AndroidComposeView.dispatchTouchEvent(AndroidComposeView.kt:578)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3030)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2719)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3030)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2719)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3030)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2719)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3030)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2719)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3030)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2719)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3030)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2719)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3030)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2719)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3030)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2719)
at com.android.internal.policy.DecorView.superDispatchTouchEvent(DecorView.java:440)
at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1830)
at android.app.Activity.dispatchTouchEvent(Activity.java:3400)
at androidx.appcompat.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:69)
at androidx.appcompat.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:69)
at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:398)
at android.view.View.dispatchPointerEvent(View.java:12752)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:5106)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4909)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4426)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4479)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4445)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4585)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4453)
at android.view.ViewRootImpl$AsyncInputStage.apply(Vie
2020-09-10 142131.537 10009-10009/com.zikirmatik.digitaltasbeeh E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.zikirmatik.digitaltasbeeh, PID: 10009
java.lang.IllegalStateException: Internal state has not been set. This method should not be called in any place but after calls to onPointerInputSetup and before calls to onPointerInputTearDown or onCancel. Also, onCustomEvent must be called appropriately. See docs for details.
at androidx.compose.ui.gesture.scrollorientationlocking.ScrollOrientationLocker.getPointersFor(ScrollOrientationLocker.kt:192)
at androidx.compose.ui.gesture.DragSlopExceededGestureFilter.onPointerInput-e3WT7_U(DragSlopExceededGestureFilter.kt:122)
at androidx.compose.ui.input.pointer.PointerInputFilter.onPointerEvent-d1fqKvQ(PointerEvent.kt:64)
at androidx.compose.ui.input.pointer.Node.dispatchToPointerInputFilter(HitPathTracker.kt:530)
at androidx.compose.ui.input.pointer.Node.dispatchChanges(HitPathTracker.kt:430)
at androidx.compose.ui.input.pointer.Node.dispatchChanges(HitPathTracker.kt:426)
at androidx.compose.ui.input.pointer.Node.dispatchChanges(HitPathTracker.kt:426)
at androidx.compose.ui.input.pointer.Node.dispatchChanges(HitPathTracker.kt:426)
at androidx.compose.ui.input.pointer.Node.dispatchChanges(HitPathTracker.kt:426)
at androidx.compose.ui.input.pointer.Node.dispatchChanges(HitPathTracker.kt:426)
at androidx.compose.ui.input.pointer.Node.dispatchChanges(HitPathTracker.kt:426)
at androidx.compose.ui.input.pointer.NodeParent.dispatchChanges(HitPathTracker.kt:282)
at androidx.compose.ui.input.pointer.HitPathTracker.dispatchChanges(HitPathTracker.kt:131)
at androidx.compose.ui.input.pointer.PointerInputEventProcessor.process-EhkylT0(PointerInputEventProcessor.kt:71)
at androidx.compose.ui.platform.AndroidComposeView.dispatchTouchEvent(AndroidComposeView.kt:578)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3030)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2719)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3030)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2719)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3030)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2719)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3030)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2719)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3030)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2719)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3030)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2719)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3030)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2719)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3030)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2719)
at com.android.internal.policy.DecorView.superDispatchTouchEvent(DecorView.java:440)
at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1830)
at android.app.Activity.dispatchTouchEvent(Activity.java:3400)
at androidx.appcompat.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:69)
at androidx.appcompat.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:69)
at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:398)
at android.view.View.dispatchPointerEvent(View.java:12752)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:5106)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4909)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4426)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4479)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4445)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4585)
2020-09-10 142131.538 10009-10009/com.zikirmatik.digitaltasbeeh E/AndroidRuntime: at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4453)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:4642)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4426)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4479)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4445)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4453)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4426)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:7092)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:7061)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:7022)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:7195)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:186)
at android.os.MessageQueue.nativePollOnce(Native Method)
at android.os.MessageQueue.next(MessageQueue.java:326)
at android.os.Looper.loop(Looper.java:160)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
t
Timo Drick
09/10/2020, 11:23 AMSorry did not have this problem yet. Maybe it is a bug of this mixing legacy and compose views?
I think this is still under heavy development.
m
Mehmet Peker
09/10/2020, 11:30 AMThank you for everythink i will fork about this
*work
t
Timo Drick
09/10/2020, 11:31 AMCan you try:
Copy code
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? =
return ComposeView(requireContext()).apply {
setContent {
MessageView ...
}
}m
Mehmet Peker
09/10/2020, 11:41 AMNot working 😞
12 Views