ViewConfiguration.getScaledTouchSlop () 用法

博客提到一个距离概念,在滑动操作时,手的移动距离需大于该距离,控件才会开始移动,这与信息技术中界面交互相关。

是一个距离,表示滑动的时候,手的移动要大于这个距离才开始移动控件。

2025-09-11 15:26:23.339 12036-12036 StrictMode com.android.camera2 E Tried to access the API:ViewConfiguration which needs to have proper configuration from a non-UI Context:com.android.camera.app.CameraApp@27d9b32 The API:ViewConfiguration needs a proper configuration. Use UI contexts such as an activity or a context created via createWindowContext(Display, int, Bundle) or createConfigurationContext(Configuration) with a proper configuration. java.lang.IllegalAccessException: Tried to access the API:ViewConfiguration which needs to have proper configuration from a non-UI Context:com.android.camera.app.CameraApp@27d9b32 at android.os.StrictMode.assertConfigurationContext(StrictMode.java:2295) at android.view.ViewConfiguration.get(ViewConfiguration.java:526) at android.view.GestureDetector.init(GestureDetector.java:473) at android.view.GestureDetector.<init>(GestureDetector.java:432) at android.view.GestureDetector.<init>(GestureDetector.java:400) at com.android.camera.app.CameraAppUI.<init>(CameraAppUI.java:918) at com.android.camera.CameraActivity.onCreateTasks(CameraActivity.java:1755) at com.android.camera.util.QuickActivity.onCreate(QuickActivity.java:114) at android.app.Activity.performCreate(Activity.java:8357) at android.app.Activity.performCreate(Activity.java:8336) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1417) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3626) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3782) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:101) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:138) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2307) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loopOnce(Looper.java:201) at android.os.Looper.loop(Looper.java:288) at android.app.ActivityThread.main(ActivityThread.java:7924) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)
09-12
2025-07-06 16:25:10.644 936-936 ViewConfiguration com.android.launcher3 E Tried to access UI constants from a non-visual Context:com.android.quickstep.inputconsumers.OtherActivityInputConsumer@d0ca171UI constants, such as display metrics or window metrics, must be accessed from Activity or other visual Context. Use an Activity or a Context created with Context#createWindowContext(int, Bundle), which are adjusted to the configuration and visual bounds of an area on screen java.lang.IllegalArgumentException: Tried to access UI constants from a non-visual Context:com.android.quickstep.inputconsumers.OtherActivityInputConsumer@d0ca171 at android.view.ViewConfiguration.get(ViewConfiguration.java:510) at com.android.quickstep.inputconsumers.OtherActivityInputConsumer.<init>(OtherActivityInputConsumer.java:163) at com.android.quickstep.TouchInteractionService.createOtherActivityInputConsumer(TouchInteractionService.java:709) at com.android.quickstep.TouchInteractionService.newBaseConsumer(TouchInteractionService.java:692) at com.android.quickstep.TouchInteractionService.newConsumer(TouchInteractionService.java:587) at com.android.quickstep.TouchInteractionService.onInputEvent(TouchInteractionService.java:493) at com.android.quickstep.TouchInteractionService.lambda$5N8OpQhfWV7_tkhenf8Ys3ECXWs(Unknown Source:0) at com.android.quickstep.-$$Lambda$TouchInteractionService$5N8OpQhfWV7_tkhenf8Ys3ECXWs.onInputEvent(Unknown Source:2) at com.android.systemui.shared.system.InputChannelCompat$InputEventReceiver$1.onInputEvent(InputChannelCompat.java:81) at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:220) at android.os.MessageQueue.nativePollOnce(Native Method) at android.os.MessageQueue.next(MessageQueue.java:335) at android.os.Looper.loop(Looper.java:183) at android.app.ActivityThread.main(ActivityThread.java:7660) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
07-07
2025-09-11 15:26:23.338 12036-12036 StrictMode com.android.camera2 E Tried to access the API:ViewConfiguration which needs to have proper configuration from a non-UI Context:com.android.camera.app.CameraApp@27d9b32 The API:ViewConfiguration needs a proper configuration. Use UI contexts such as an activity or a context created via createWindowContext(Display, int, Bundle) or createConfigurationContext(Configuration) with a proper configuration. java.lang.IllegalAccessException: Tried to access the API:ViewConfiguration which needs to have proper configuration from a non-UI Context:com.android.camera.app.CameraApp@27d9b32 at android.os.StrictMode.assertConfigurationContext(StrictMode.java:2295) at android.view.ViewConfiguration.get(ViewConfiguration.java:526) at com.android.camera.app.CameraAppUI.<init>(CameraAppUI.java:906) at com.android.camera.CameraActivity.onCreateTasks(CameraActivity.java:1755) at com.android.camera.util.QuickActivity.onCreate(QuickActivity.java:114) at android.app.Activity.performCreate(Activity.java:8357) at android.app.Activity.performCreate(Activity.java:8336) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1417) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3626) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3782) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:101) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:138) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2307) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loopOnce(Looper.java:201) at android.os.Looper.loop(Looper.java:288) at android.app.ActivityThread.main(ActivityThread.java:7924) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)
09-12
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