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alibaba / Tangram-Android

Tangram is a modular UI solution for building native page dynamically including Tangram for Android, Tangram for iOS and even backend CMS. This project provides the sdk on Android.
http://tangram.pingguohe.net/
MIT License
4.11k stars 526 forks source link

scrollToPosition滚动 #177

Open xicong opened 5 years ago

xicong commented 5 years ago

engine.scrollToPosition 一点反应都没有，想问一下用的时候有特殊的用法还是

xicong commented 5 years ago

image

正常滑动没问题 但是用recycleview.smoothScrollToPosition在跳转的过程中反复多次就出现好多view渲染不出来的情况

其次多次之后内部还会出现RecyclerView内部的NullPointerException java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.ViewGroup$LayoutParams android.view.View.getLayoutParams()' on a null object reference at androidx.recyclerview.widget.RecyclerView.getDecoratedBoundsWithMarginsInt(RecyclerView.java:4886) at androidx.recyclerview.widget.RecyclerView$LayoutManager.getDecoratedBoundsWithMargins(RecyclerView.java:9373) at androidx.recyclerview.widget.RecyclerView$LayoutManager.setMeasuredDimensionFromChildren(RecyclerView.java:7531) at androidx.recyclerview.widget.RecyclerView.onMeasure(RecyclerView.java:3339) at android.view.View.measure(View.java:18794) at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1092) at android.widget.LinearLayout.onMeasure(LinearLayout.java:632) at android.view.View.measure(View.java:18794) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951) at android.widget.FrameLayout.onMeasure(FrameLayout.java:194) at android.view.View.measure(View.java:18794) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465) at android.widget.LinearLayout.measureVertical(LinearLayout.java:748) at android.widget.LinearLayout.onMeasure(LinearLayout.java:630) at android.view.View.measure(View.java:18794) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465) at android.widget.LinearLayout.measureVertical(LinearLayout.java:748) at android.widget.LinearLayout.onMeasure(LinearLayout.java:630) at android.view.View.measure(View.java:18794) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951) at android.widget.FrameLayout.onMeasure(FrameLayout.java:194) at androidx.appcompat.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:143) at android.view.View.measure(View.java:18794) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465) at android.widget.LinearLayout.measureVertical(LinearLayout.java:748) at android.widget.LinearLayout.onMeasure(LinearLayout.java:630) at android.view.View.measure(View.java:18794) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951) at android.widget.FrameLayout.onMeasure(FrameLayout.java:194) at android.view.View.measure(View.java:18794) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465) at android.widget.LinearLayout.measureVertical(LinearLayout.java:748) at android.widget.LinearLayout.onMeasure(LinearLayout.java:630) at android.view.View.measure(View.java:18794) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951) at android.widget.FrameLayout.onMeasure(FrameLayout.java:194) at com.android.internal.policy.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2643) at android.view.View.measure(View.java:18794) at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2094) at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1216) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1452) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1107) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6007) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858) at android.view.Choreographer.doCallbacks(Choreographer.java:670) at android.view.Choreographer.doFrame(Choreographer.java:606) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5539) at java.lang.reflect.Method.invoke(Native Method) at com.android.i