Android4.4的设备运行Demo直接就闪退了，其他设备正常使用，版本是3.3.3，希望大佬能看看

[zhang3776813]

日志如下： E java.lang.NoSuchMethodError: Landroid/graphics/Canvas;.saveLayer at com.jiangdg.ausbc.widget.PreviewImageView.onDraw(PreviewImageView.kt:140) at android.view.View.draw(View.java:14465) at android.view.View.getDisplayList(View.java:13362) at android.view.View.getDisplayList(View.java:13404) at android.view.View.draw(View.java:14182) at android.view.ViewGroup.drawChild(ViewGroup.java:3103) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940) at androidx.constraintlayout.widget.ConstraintLayout.dispatchDraw(ConstraintLayout.java:1975) at android.view.View.getDisplayList(View.java:13357) at android.view.View.getDisplayList(View.java:13404) at android.view.View.draw(View.java:14182) at android.view.ViewGroup.drawChild(ViewGroup.java:3103) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940) at android.view.View.getDisplayList(View.java:13357) at android.view.View.getDisplayList(View.java:13404) at android.view.View.draw(View.java:14182) at android.view.ViewGroup.drawChild(ViewGroup.java:3103) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940) at androidx.constraintlayout.widget.ConstraintLayout.dispatchDraw(ConstraintLayout.java:1975) at android.view.View.draw(View.java:14468) at android.view.View.getDisplayList(View.java:13362) at android.view.View.getDisplayList(View.java:13404) at android.view.View.draw(View.java:14182) at android.view.ViewGroup.drawChild(ViewGroup.java:3103) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940) at android.view.View.draw(View.java:14468) at android.widget.FrameLayout.draw(FrameLayout.java:472) at android.view.View.getDisplayList(View.java:13362) at android.view.View.getDisplayList(View.java:13404) at android.view.View.draw(View.java:14182) at android.view.ViewGroup.drawChild(ViewGroup.java:3103) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940) at android.view.View.getDisplayList(View.java:13357) at android.view.View.getDisplayList(View.java:13404) at android.view.View.draw(View.java:14182) at android.view.ViewGroup.drawChild(ViewGroup.java:3103) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940) at android.view.View.getDisplayList(View.java:13357) at android.view.View.getDisplayList(View.java:13404) at android.view.View.draw(View.java:14182) at android.view.ViewGroup.drawChild(ViewGroup.java:3103) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940) at android.view.View.getDisplayList(View.java:13357) at android.view.View.getDisplayList(View.java:13404) at android.view.View.draw(View.java:14182) at android.view.ViewGroup.drawChild(ViewGroup.java:3103) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940) at android.view.View.draw(View.java:14468) at android.widget.FrameLayout.draw(FrameLayout.java:472) at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:2326) at android.view.View.getDisplayList(View.java:13362) at android.view.View.getDisplayList(View.java:13404) at android.view.HardwareRenderer$GlRenderer.buildDisplayList(HardwareRenderer.java:1574) at android.view.HardwareRenderer$GlRenderer.draw(HardwareRenderer.java:1453) at android.view.ViewRootImpl.draw(ViewRootImpl.java:2425) at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2297) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1927) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1044) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5714) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761) at android.view.Choreographer.doCallbacks(Choreographer.java:574) at android.view.Choreographer.doFrame(Choreographer.java:544) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747) at android.os.Handler.handleCallback(Handler.java:733) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5017) at java.lang.reflect.Method.invokeNative(Native Method) at