android.view.WindowManager addView 抛InvalidDisplayException

最新推荐文章于 2022-07-11 16:41:24 发布
原创 最新推荐文章于 2022-07-11 16:41:24 发布 · 1.8k 阅读 · 0 ·
CC 4.0 BY-SA版权
版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
文章标签：

#Android

在实现Android悬浮窗功能时，调用WindowManager的addView方法遇到InvalidDisplayException异常，错误信息为：'Unable to add window — the specified window type is not valid'。解决方法是在调用windowManager.addView之前正确设置LayoutParams的类型。

摘要生成于 C知道 ，由 DeepSeek-R1 满血版支持， 前往体验 >

android.view.WindowManager$InvalidDisplayException: Unable to add window android.view.ViewRootImpl$W@15682835 -- the specified window type is not valid

在做悬浮框时使用了WindowManager 调用其addView()时抛出以上异常。

解决：

         1.在调用windowManager.addView(this, params); 之前设置params的类型

     params.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;
   2.在AndroidManifest.xml中添加权限：
     <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />

Android 实现悬浮窗遇到的问题以及解决方法
baobeinet的博客
05-15 2322
编译工具，Androidstudio，Android版本是：Android 11 问题一： 报错内容： Caused by: android.view.WindowManager$BadTokenException: Unable to add window android.view.ViewRootImpl$W@4035b5b -- permission denied for window type 2003 at android.view.ViewRootImpl.setView(Vi...
WindowManager- InvalidDisplayException
whjk20的专栏
09-14 4104
Android Window/WindowManager
windowManager.addView()抛出WindowManager$InvalidDisplayException异常
u012807211的专栏
05-03 4149
windowManager.addView()抛出WindowManager$InvalidDisplayException异常
异常android.view.WindowManager$BadTokenException: Unable to add window解决方法
魔术师
12-13 1052
1，导致报这个错是在于new AlertDialog.Builder(mcontext)，虽然这里的参数是AlertDialog.Builder(Context context)但我们不能使用getApplicationContext()获得的Context,而必须使用Activity,因为只有一个Activity才能添加一个窗体。  解决方法：将new AlertDialog.Builde
android.view.WindowManager$BadTokenException: Unable to add window（转）
panxiqie___的专栏
02-17 1050
遇到一个问题，android.view.WindowManager$BadTokenException: Unable to add window 报了这个错。 private void showCustomDialog() {   // TODO Auto-generated method stub   AlertDialog.Builder builder;   AlertDial
android.view.WindowManager$BadTokenException: Unable to add window
Android_Robot的专栏
03-14 9789
需要做一个Button，点击弹出对话框，很简单 贴上代码(出现Unable to add window)问题： AlertDialog.Builder dialog = new AlertDialog.Builder(getApplicationContext()); dialog.setTitle(MulticastConstantDefine.TextInfo.TITLE_REVOLUTI
07-20 19:57:40.672 5131 5131 D AndroidRuntime: Shutting down VM --------- beginning of crash 07-20 19:57:40.673 5131 5131 E AndroidRuntime: FATAL EXCEPTION: main 07-20 19:57:40.673 5131 5131 E AndroidRuntime: Process: com.adayo.aaop_deviceservice, PID: 5131 07-20 19:57:40.673 5131 5131 E AndroidRuntime: java.lang.RuntimeException: Unable to create service com.adayo.aaop_deviceservice.service.BurialPointService: android.view.WindowManager$InvalidDisplayException: Unable to add window android.view.ViewRootImpl$W@e6477e5 -- the specified display can not be found 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at android.app.ActivityThread.handleCreateService(ActivityThread.java:4221) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at android.app.ActivityThread.access$1600(ActivityThread.java:238) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1955) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:106) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at android.os.Looper.loop(Looper.java:223) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:7731) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: Caused by: android.view.WindowManager$InvalidDisplayException: Unable to add window android.view.ViewRootImpl$W@e6477e5 -- the specified display can not be found 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at android.view.ViewRootImpl.setView(ViewRootImpl.java:1099) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:409) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:109) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at android.app.Dialog.show(Dialog.java:342) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at android.app.Presentation.show(Presentation.java:257) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at com.adayo.aaop_deviceservice.service.BurialPointService.x(Unknown Source:77) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at com.adayo.aaop_deviceservice.service.BurialPointService.A(Unknown Source:50) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at com.adayo.aaop_deviceservice.service.BurialPointService.onCreate(Unknown Source:10) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: at android.app.ActivityThread.handleCreateService(ActivityThread.java:4209) 07-20 19:57:40.673 5131 5131 E AndroidRuntime: ... 8 more 07-20 19:57:40.676 5131 5131 I Process : Sending signal. PID: 5131 SIG: 9 private void createBackgroundToQnx() { DisplayManager displayManager = (DisplayManager)this.getSystemService(Context.DISPLAY_SERVICE); Display[] displays = displayManager.getDisplays(); Log.i(TAG, "createBackgroundToQnx displays = " + Arrays.toString(displays)); for (Display display : displayManager.getDisplays()) { if (display.getDisplayId() == 1) { Presentation presentation = new Presentation(this, displayManager.getDisplay(1)); View view = new View(this); view.setBackgroundColor(Color.BLACK); presentation.setContentView(view); presentation.show(); } } }
08-07
首先，用户的问题是："Android app crash due to WindowManager$InvalidDisplayException: Unable to add window -- the specified display can not be found, how to fix"。这涉及到Android开发中的异常处理。 ...
我的是系统级服务，然后接了主屏和仪表屏也报这个错误，延迟初始化也没用android.view.WindowManager$InvalidDisplayException: Unable to add window android.view.ViewRootImpl$W@81df4e9 -- the specified display can not be found 07-20 19:57:33.600 2235 2235 I BurialPointService1: at android.view.ViewRootImpl.setView(ViewRootImpl.java:1099) 07-20 19:57:33.600 2235 2235 I BurialPointService1: at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:409) 07-20 19:57:33.600 2235 2235 I BurialPointService1: at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:109) 07-20 19:57:33.600 2235 2235 I BurialPointService1: at android.app.Dialog.show(Dialog.java:342) 07-20 19:57:33.600 2235 2235 I BurialPointService1: at android.app.Presentation.show(Presentation.java:257) 07-20 19:57:33.600 2235 2235 I BurialPointService1: at com.adayo.aaop_deviceservice.service.BurialPointService.x(Unknown Source:109) 07-20 19:57:33.600 2235 2235 I BurialPointService1: at com.adayo.aaop_deviceservice.service.BurialPointService.A(Unknown Source:50) 07-20 19:57:33.600 2235 2235 I BurialPointService1: at com.adayo.aaop_deviceservice.service.BurialPointService.onCreate(Unknown Source:10) 07-20 19:57:33.600 2235 2235 I BurialPointService1: at android.app.ActivityThread.handleCreateService(ActivityThread.java:4209) 07-20 19:57:33.600 2235 2235 I BurialPointService1: at android.app.ActivityThread.access$1600(ActivityThread.java:238) 07-20 19:57:33.600 2235 2235 I BurialPointService1: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1955) 07-20 19:57:33.600 2235 2235 I BurialPointService1: at android.os.Handler.dispatchMessage(Handler.java:106) 07-20 19:57:33.600 2235 2235 I BurialPointService1: at android.os.Looper.loop(Looper.java:223) 07-20 19:57:33.600 2235 2235 I BurialPointService1: at android.app.ActivityThread.main(ActivityThread.java:7731) 07-20 19:57:33.600 2235 2235 I BurialPointService1: at java.lang.reflect.Method.invoke(Native Method) 07-20 19:57:33.600 2235 2235 I BurialPointService1: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) 07-20 19:57:33.600 2235 2235 I BurialPointService1: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947) private void createBackgroundToQnx() { DisplayManager displayManager = (DisplayManager)this.getSystemService(Context.DISPLAY_SERVICE); Display[] displays = displayManager.getDisplays(); Log.i(TAG, "createBackgroundToQnx displays = " + Arrays.toString(displays)); for (Display display : displayManager.getDisplays()) { if (display.getDisplayId() != Display.DEFAULT_DISPLAY) { if (!display.isValid()) { Log.i(TAG, "createBackgroundToQnx display is invalid ! displayID = " + display.getDisplayId()); continue; } try { Presentation presentation = new Presentation(getApplicationContext(), display); View view = new View(this); view.setBackgroundColor(Color.BLACK); presentation.setContentView(view); presentation.show(); } catch (WindowManager.InvalidDisplayException e) { Log.i(TAG, "Failed to show presentation on display: " + display, e); } } } }
08-07
我们正在处理一个系统级服务中出现的`WindowManager$InvalidDisplayException`异常，该异常发生在尝试使用`Presentation`类在副屏（仪表屏）上显示内容时，错误信息为“Unable to add window -- the specified ...
07-20 19:57:33.402 2248 2248 I BurialPointService1: Failed to show presentation on display: Display id 1: DisplayInfo{"内置屏幕", displayId 1, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, FLAG_TRUSTED, real 1920 x 720, largest app 1920 x 1920, smallest app 720 x 720, appVsyncOff 1000000, presDeadline 16666666, mode 2, defaultMode 2, modes [{id=2, width=1920, height=720, fps=60.000004}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[], mMaxLuminance=500.0, mMaxAverageLuminance=500.0, mMinLuminance=0.0}, minimalPostProcessingSupported false, rotation 0, state ON, type INTERNAL, uniqueId "local:130", app 1920 x 720, density 160 (167.013 x 167.779) dpi, layerStack 1, colorMode 0, supportedColorModes [0], address {port=130}, deviceProductInfo null, removeMode 0}, DisplayMetrics{density=1.0, width=1920, height=720, scaledDensity=1.0, xdpi=167.013, ydpi=167.779}, isValid=true 07-20 19:57:33.402 2248 2248 I BurialPointService1: android.view.WindowManager$InvalidDisplayException: Unable to add window android.view.ViewRootImpl$W@a379ee3 -- the specified display can not be found 07-20 19:57:33.402 2248 2248 I BurialPointService1: at android.view.ViewRootImpl.setView(ViewRootImpl.java:1099) 07-20 19:57:33.402 2248 2248 I BurialPointService1: at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:409) 07-20 19:57:33.402 2248 2248 I BurialPointService1: at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:109) 07-20 19:57:33.402 2248 2248 I BurialPointService1: at android.app.Dialog.show(Dialog.java:342) 07-20 19:57:33.402 2248 2248 I BurialPointService1: at android.app.Presentation.show(Presentation.java:257) 07-20 19:57:33.402 2248 2248 I BurialPointService1: at com.adayo.aaop_deviceservice.service.BurialPointService.y(Unknown Source:48) 07-20 19:57:33.402 2248 2248 I BurialPointService1: at com.adayo.aaop_deviceservice.service.BurialPointService.B(Unknown Source:53) 07-20 19:57:33.402 2248 2248 I BurialPointService1: at com.adayo.aaop_deviceservice.service.BurialPointService.onCreate(Unknown Source:10) 07-20 19:57:33.402 2248 2248 I BurialPointService1: at android.app.ActivityThread.handleCreateService(ActivityThread.java:4209) 07-20 19:57:33.402 2248 2248 I BurialPointService1: at android.app.ActivityThread.access$1600(ActivityThread.java:238) 07-20 19:57:33.402 2248 2248 I BurialPointService1: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1955) 07-20 19:57:33.402 2248 2248 I BurialPointService1: at android.os.Handler.dispatchMessage(Handler.java:106) 07-20 19:57:33.402 2248 2248 I BurialPointService1: at android.os.Looper.loop(Looper.java:223) 07-20 19:57:33.402 2248 2248 I BurialPointService1: at android.app.ActivityThread.main(ActivityThread.java:7731) 07-20 19:57:33.402 2248 2248 I BurialPointService1: at java.lang.reflect.Method.invoke(Native Method) 07-20 19:57:33.402 2248 2248 I BurialPointService1: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) 07-20 19:57:33.402 2248 2248 I BurialPointService1: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947) private void createBackgroundToQnx() { int displayId = 1; DisplayManager dm = (DisplayManager) getSystemService(Context.DISPLAY_SERVICE); Display display = dm.getDisplay(displayId); if (display == null || !display.isValid()) { Log.e(TAG, "Invalid display: " + displayId); return; } try { Context displayContext = getApplicationContext().createDisplayContext(display); Presentation presentation = new Presentation(displayContext, display); View view = new View(this); view.setBackgroundColor(Color.BLACK); presentation.setContentView(view); presentation.show(); } catch (WindowManager.InvalidDisplayException e) { Log.i(TAG, "Failed to show presentation on display: " + display, e); } }
最新发布
08-08
要解决Android中无法在指定Display上显示Presentation并抛出`WindowManager.InvalidDisplayException`的问题，需从以下关键点排查： --- ### **原因分析 & 解决方案** #### 1. **无效的Display ID** - **问题**：...
07-20 19:57:33.608 2261 2261 I BurialPointService1: Failed to show presentation on display: Display id 1: DisplayInfo{"内置屏幕", displayId 1, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, FLAG_TRUSTED, real 1920 x 720, largest app 1920 x 1920, smallest app 720 x 720, appVsyncOff 1000000, presDeadline 16666666, mode 2, defaultMode 2, modes [{id=2, width=1920, height=720, fps=60.000004}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[], mMaxLuminance=500.0, mMaxAverageLuminance=500.0, mMinLuminance=0.0}, minimalPostProcessingSupported false, rotation 0, state ON, type INTERNAL, uniqueId "local:130", app 1920 x 720, density 160 (167.013 x 167.779) dpi, layerStack 1, colorMode 0, supportedColorModes [0], address {port=130}, deviceProductInfo null, removeMode 0}, DisplayMetrics{density=1.0, width=1920, height=720, scaledDensity=1.0, xdpi=167.013, ydpi=167.779}, isValid=true 07-20 19:57:33.608 2261 2261 I BurialPointService1: android.view.WindowManager$InvalidDisplayException: Unable to add window android.view.ViewRootImpl$W@81df4e9 -- the specified display can not be found 07-20 19:57:33.608 2261 2261 I BurialPointService1: at android.view.ViewRootImpl.setView(ViewRootImpl.java:1099) 07-20 19:57:33.608 2261 2261 I BurialPointService1: at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:409) 07-20 19:57:33.608 2261 2261 I BurialPointService1: at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:109) 07-20 19:57:33.608 2261 2261 I BurialPointService1: at android.app.Dialog.show(Dialog.java:342) 07-20 19:57:33.608 2261 2261 I BurialPointService1: at android.app.Presentation.show(Presentation.java:257) 07-20 19:57:33.608 2261 2261 I BurialPointService1: at com.adayo.aaop_deviceservice.service.BurialPointService.x(Unknown Source:105) 07-20 19:57:33.608 2261 2261 I BurialPointService1: at com.adayo.aaop_deviceservice.service.BurialPointService.A(Unknown Source:50) 07-20 19:57:33.608 2261 2261 I BurialPointService1: at com.adayo.aaop_deviceservice.service.BurialPointService.onCreate(Unknown Source:10) 07-20 19:57:33.608 2261 2261 I BurialPointService1: at android.app.ActivityThread.handleCreateService(ActivityThread.java:4209) 07-20 19:57:33.608 2261 2261 I BurialPointService1: at android.app.ActivityThread.access$1600(ActivityThread.java:238) 07-20 19:57:33.608 2261 2261 I BurialPointService1: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1955) 07-20 19:57:33.608 2261 2261 I BurialPointService1: at android.os.Handler.dispatchMessage(Handler.java:106) 07-20 19:57:33.608 2261 2261 I BurialPointService1: at android.os.Looper.loop(Looper.java:223) 07-20 19:57:33.608 2261 2261 I BurialPointService1: at android.app.ActivityThread.main(ActivityThread.java:7731) 07-20 19:57:33.608 2261 2261 I BurialPointService1: at java.lang.reflect.Method.invoke(Native Method) 07-20 19:57:33.608 2261 2261 I BurialPointService1: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) 07-20 19:57:33.608 2261 2261 I BurialPointService1: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947) 07-20 19:57:33.665 2261 2724 I BurialPointService1: parseJsonToEvent: json = {"command":{"id":"ipc","sub":"poweron"},"content":{"totalmileage":0,"resmileage":0}} 07-20 19:57:33.665 2261 2724 I BurialPointService1: parseJsonToEvent: key = totalmileage, value = 0.0 07-20 19:57:33.666 2261 2724 I BurialPointService1: parseJsonToEvent: key = resmileage, value = 0 07-20 19:57:33.666 2261 2724 I BurialPointService1: sendSyncEvent: failed aAnalyticsManager is null! 07-20 19:57:34.408 2261 2261 I BurialPointService1: onServiceConnect 埋点连接成功！ private void createBackgroundToQnx() { DisplayManager displayManager = (DisplayManager)this.getSystemService(Context.DISPLAY_SERVICE); Display[] displays = displayManager.getDisplays(); Log.i(TAG, "createBackgroundToQnx displays = " + Arrays.toString(displays)); for (Display display : displayManager.getDisplays()) { if (display.getDisplayId() != Display.DEFAULT_DISPLAY) { if (!display.isValid()) { Log.i(TAG, "createBackgroundToQnx display is invalid ! displayID = " + display.getDisplayId()); continue; } try { Presentation presentation = new Presentation(this, display); View view = new View(this); view.setBackgroundColor(Color.BLACK); presentation.setContentView(view); presentation.show(); } catch (WindowManager.InvalidDisplayException e) { Log.i(TAG, "Failed to show presentation on display: " + display, e); } } } }
08-07
此外，当尝试在无效的显示设备上添加窗口时，系统会抛出`WindowManager.InvalidDisplayException`异常[^2]。对于系统级窗口，可能需要特殊权限[^3]，但`Presentation`通常不需要。 §§相关问题§§ 1. 如何在...
Unable to add window android.view.ViewRootImpl$W@9b9fc47 -- permission denied for window type 2002
m0_46366678的博客
07-11 1595
权限异常
关于异常：android.view.WindowManager$BadTokenException: Unable to add window
q40579717的专栏
06-06 317
有两种。 一种是：token android.os.BinderProxy@406bdb70 is not valid; is your activity running? 举个例子：new一个Dialog的时候，传了个Context的参数给Dialog的构造函数，但是当Dialog.show()的时候 ，这个Context或者说这个Activity已经被销毁了，就会抛这个异常。 另一种是
Android - Unable to add window android.view.ViewRootImpl$W@6518342 -- permission denied for window t
AdrianAndroid的专栏
08-10 2556
https://www.cnblogs.com/hustcser/p/11138886.html
android开发中遇到的android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.
0完美对称0的专栏
08-20 925
我遇到的是先
Android 分析android.view.WindowManager$BadTokenException: Unable to add window异常
萌动小彩笔的博客
07-05 354
在项目中遇到如图所示错误信息，根据提示我们可知这是Dialog在show的时候失去了它的载体。对AlertDialog来说，它需要依赖一个View，而View是对应于Activity的。所以当Activity销毁后才调用show的时候就会报上面所示的错误。当然我们可以通过判断其承载它的view是否被销毁从而去将它show出来。 　　if (!isFinishing()) { dialog
android.view.WindowManager$BadTokenException: Unable to add window-permission denied 完美兼容8.0的系统
today_work的博客
03-15 968
问题，从问题反馈看就是 window type权限拒绝导致，我的dialog设置的type为 mWindow.setType((WindowManager.LayoutParams.TYPE_SYSTEM_ALERT)); 安卓6.0及以后该权限需要手动申请，且清单文件注册该权限 第一步： <uses-permission android:name="android.permission.SY
android.view.WindowManager$BadTokenException: Unable to add window — token null
热门推荐
听音乐@的博客
02-15 1万+
比较懒的写博客,这篇文章也放在草稿箱很久了,无意间翻出来,发现自己现在异常类的问题基本上都不用Google上搜了,一般android studio 的logcat中都会给出很详细的错误描述.项目中遇到问题都能够解决,感觉什么都会又有很多的东西要学,很多知识不熟悉,容易记混淆. 所以还是用博客写一写成长的过程吧.   private Context mcontext;          @...
android.view.WindowManager$BadTokenException: Unable to add window android.view.ViewRootImpl$W@e48ad
三杯五岳
03-31 2505
问题： android.view.WindowManager$BadTokenException: Unable to add window android.view.ViewRootImpl$W@e48ad73 -- permission denied for window type 2010 详细：
android.view.WindowManager$BadTokenException: Unable to add window报错
longer__的博客
05-26 536
android.view.WindowManager$BadTokenException: Unable to add window android.view.WindowManager$BadTokenException: Unable to add window -- token android.app.LocalActivityManager$LocalActivityRecord@45f
``` FATAL EXCEPTION: main Process: com.oem.qisda, PID: 6430 java.lang.RuntimeException: Unable to create service com.oem.qisda.CpuInfoService: android.view.WindowManager$BadTokenException: Unable to add window android.view.ViewRootImpl$W@9519714 -- permission denied for window type 2038 at android.app.ActivityThread.handleCreateService(ActivityThread.java:4568) at android.app.ActivityThread.access$1700(ActivityThread.java:257) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2111) 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:7911) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:681) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1009) Caused by: android.view.WindowManager$BadTokenException: Unable to add window android.view.ViewRootImpl$W@9519714 -- permission denied for window type 2038 at android.view.ViewRootImpl.setView(ViewRootImpl.java:1215) at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:400) at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:139) at com.oem.qisda.CpuInfoService.onCreate(CpuInfoService.java:105) at android.app.ActivityThread.handleCreateService(ActivityThread.java:4555) at android.app.ActivityThread.access$1700(ActivityThread.java:257)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2111)  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:7911)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:681)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1009)```怎么解决
03-08
<think>嗯，用户遇到了一个Android应用的崩溃问题，错误日志显示的是`WindowManager$BadTokenException`，具体原因是权限被拒绝，窗口类型2038。我需要帮他们解决这个问题。首先，我得理解这个错误的常见原因。 窗口类型2038，这个数字可能对应的是系统窗口类型。Android中，系统窗口需要特定的权限，比如`SYSTEM_ALERT_WINDOW`。如果应用没有申请这个权限，或者没有正确动态请求，就会导致这个错误。另外，在Android 8.0（API 26）之后，某些窗口类型的使用方式可能有所变化，比如必须使用`TYPE_APPLICATION_OVERLAY`代替之前的类型。 查看堆栈跟踪，问题出现在`CpuInfoService`的`onCreate`方法中，这里可能是在Service里尝试显示一个窗口，比如悬浮窗。Service中直接显示窗口需要注意权限和窗口类型是否正确。 接下来，可能的解决步骤包括： 1. **检查窗口类型**：确认使用的窗口类型是否为`TYPE_APPLICATION_OVERLAY`（适用于API 26+）。如果是旧版本，可能需要条件判断，使用不同的类型。 2. **添加权限**：在AndroidManifest.xml中添加`<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />`，并且动态请求该权限，尤其是在Android 6.0及以上版本。 3. **检查Service的上下文**：在Service中使用`getApplicationContext()`而不是`this`来获取Context，避免可能的token问题。 4. **目标SDK版本适配**：如果应用的目标SDK版本较高，可能需要调整窗口类型的处理方式，符合新的API要求。 另外，用户可能需要检查是否在Service中正确初始化了WindowManager，以及LayoutParams的设置是否正确。例如，使用`WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY`而不是硬编码的2038，因为不同系统版本类型值可能不同。 还有，动态权限请求的处理是否到位，用户是否在运行时授予了权限。特别是`SYSTEM_ALERT_WINDOW`权限需要用户手动在设置中开启，所以可能需要引导用户去授权。 总结，解决方案应该围绕权限申请、正确的窗口类型设置以及上下文的使用展开。可能需要分步骤指导用户修改代码，并处理不同Android版本的兼容性问题。</think>这个错误是典型的Android窗口权限问题，主要涉及系统窗口权限的缺失。以下是分步解决方案： $$ \text{解决方案步骤} $$ 1. **添加悬浮窗权限声明** ```xml <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" /> ``` 在AndroidManifest.xml中添加权限声明 2. **适配Android O+的窗口类型** ```java int layoutType; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { layoutType = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY; } else { layoutType = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT; } ``` 3. **动态权限请求（关键步骤）** ```java // 在Activity中请求权限 if (!Settings.canDrawOverlays(this)) { Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + getPackageName())); startActivityForResult(intent, REQUEST_CODE); } ``` 4. **修改WindowManager初始化方式** ```java // 在Service中使用正确的Context WindowManager windowManager = (WindowManager) getApplicationContext().getSystemService(WINDOW_SERVICE); WindowManager.LayoutParams params = new WindowManager.LayoutParams( width, height, layoutType, // 使用步骤2定义的type WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE, PixelFormat.TRANSLUCENT ); ``` 5. **Service代码示例修正** ```java public class CpuInfoService extends Service { @Override public void onCreate() { super.onCreate(); if (checkDrawOverlayPermission()) { showFloatingWindow(); } } private boolean checkDrawOverlayPermission() { return Settings.canDrawOverlays(this); } } ``` $$ \text{注意事项} $$ 1. **API版本适配矩阵** | API Level | 要求窗口类型 | 所需权限 | |-----------|----------------------|--------------------------| | < 26 | TYPE_SYSTEM_ALERT | SYSTEM_ALERT_WINDOW | | ≥ 26 | TYPE_APPLICATION_OVERLAY | SYSTEM_ALERT_WINDOW | 2. **常见错误排查点** - 未在manifest声明权限 - 未动态请求权限（仅声明无效） - 错误使用Activity Context替代Application Context - 混淆了TYPE_SYSTEM_ALERT和TYPE_APPLICATION_OVERLAY的使用场景 3. **进阶优化建议** ```java // 添加窗口显示异常捕获 try { windowManager.addView(floatingView, params); } catch (WindowManager.BadTokenException e) { Log.e("WindowError", "Failed to add view: " + e.getMessage()); // 触发权限请求流程 requestOverlayPermission(); } ``` 这个问题的本质是Android系统对悬浮窗权限的管控升级，需要特别注意从Android 8.0开始引入的TYPE_APPLICATION_OVERLAY类型。建议使用Android Studio的Layout Inspector工具验证窗口层级，同时使用adb命令`adb shell dumpsys window windows`检查窗口属性是否正常。
评论
添加红包

请填写红包祝福语或标题

个

红包个数最小为10个

元

红包金额最低5元

当前余额3.43元 前往充值 >
需支付：10.00元
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付元
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明：

1.余额是钱包充值的虚拟货币，按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载，可以购买VIP、付费专栏及课程。

余额充值