在创建一个Dialog时,发生的错误: Unable to add window -- token null is not for an application

本文解决了一个特定的Dialog创建错误:Unabletoaddwindow--tokennullisnotforanapplication。指出不能使用getApplicationContext()来创建Dialog,而应当在一个具体的Activity上下文中进行。

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在创建一个Dialog时,发生的错误:

Unable to add window -- token null is not for an application




不能用getAPplicationContext(),必须要有指定的activity

01-01 00:16:20.586 20968 20968 E AndroidRuntime: FATAL EXCEPTION: main 01-01 00:16:20.586 20968 20968 E AndroidRuntime: Process: com.adayo.service.atsmode, PID: 20968 01-01 00:16:20.586 20968 20968 E AndroidRuntime: android.view.WindowManager$BadTokenException: Unable to add window -- token null is not valid; is your activity running? 01-01 00:16:20.586 20968 20968 E AndroidRuntime: at android.view.ViewRootImpl.setView(ViewRootImpl.java:1071) 01-01 00:16:20.586 20968 20968 E AndroidRuntime: at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:409) 01-01 00:16:20.586 20968 20968 E AndroidRuntime: at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:109) 01-01 00:16:20.586 20968 20968 E AndroidRuntime: at android.app.Dialog.show(Dialog.java:340) 01-01 00:16:20.586 20968 20968 E AndroidRuntime: at android.app.AlertDialog$Builder.show(AlertDialog.java:1131) 01-01 00:16:20.586 20968 20968 E AndroidRuntime: at android.widget.VideoView$5.onError(VideoView.java:615) 01-01 00:16:20.586 20968 20968 E AndroidRuntime: at android.media.MediaPlayer$EventHandler.handleMessage(MediaPlayer.java:3446) 01-01 00:16:20.586 20968 20968 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:106) 01-01 00:16:20.586 20968 20968 E AndroidRuntime: at android.os.Looper.loop(Looper.java:223) 01-01 00:16:20.586 20968 20968 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:7687) 01-01 00:16:20.586 20968 20968 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method) 01-01 00:16:20.586 20968 20968 E AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) 01-01 00:16:20.586 20968 20968 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947) 01-01 00:16:21.454 20968 20968 I Process : Sending signal. PID: 20968 SIG: 9
最新发布
08-06
分析以下代码的报错信息:------------------------- PROCESS STARTED (7432) for package com.example.myapplication ---------------------------- 2025-07-09 13:27:09.041 7432-7432 e.myapplicatio com.example.myapplication W ClassLoaderContext classpath size mismatch. expected=0, found=1 (PCL[] | PCL[/data/data/com.example.myapplication/code_cache/.overlay/base.apk/classes3.dex*4250602868]) 2025-07-09 13:27:09.042 7432-7432 e.myapplicatio com.example.myapplication W Found duplicate classes, falling back to extracting from APK : /data/app/~~dh0o8WK_fXecSV_JJz78RQ==/com.example.myapplication-RE5zX8NpQzXhviy1xPMobA==/base.apk 2025-07-09 13:27:09.042 7432-7432 e.myapplicatio com.example.myapplication W NOTE: This wastes RAM and hurts startup performance. 2025-07-09 13:27:09.042 7432-7432 e.myapplicatio com.example.myapplication W Found duplicated class when checking oat files: 'Lcom/example/myapplication/ListActivity$1;' in /data/data/com.example.myapplication/code_cache/.overlay/base.apk/classes3.dex and /data/app/~~dh0o8WK_fXecSV_JJz78RQ==/com.example.myapplication-RE5zX8NpQzXhviy1xPMobA==/base.apk!classes3.dex 2025-07-09 13:27:09.172 7432-7432 NetworkSecurityConfig com.example.myapplication D No Network Security Config specified, using platform default 2025-07-09 13:27:09.173 7432-7432 NetworkSecurityConfig com.example.myapplication D No Network Security Config specified, using platform default 2025-07-09 13:27:09.201 7432-7456 libEGL com.example.myapplication D loaded /vendor/lib/egl/libEGL_emulation.so 2025-07-09 13:27:09.202 7432-7456 libEGL com.example.myapplication D loaded /vendor/lib/egl/libGLESv1_CM_emulation.so 2025-07-09 13:27:09.204 7432-7456 libEGL com.example.myapplication D loaded /vendor/lib/egl/libGLESv2_emulation.so 2025-07-09 13:27:09.246 7432-7432 AppCompatDelegate com.example.myapplication D Checking for metadata for AppLocalesMetadataHolderService : Service not found 2025-07-09 13:27:09.305 7432-7432 e.myapplicatio com.example.myapplication W Accessing hidden method Landroid/view/View;->computeFitSystemWindows(Landroid/graphics/Rect;Landroid/graphics/Rect;)Z (greylist, reflection, allowed) 2025-07-09 13:27:09.305 7432-7432 e.myapplicatio com.example.myapplication W Accessing hidden method Landroid/view/ViewGroup;->makeOptionalFitsSystemWindows()V (greylist, reflection, allowed) 2025-07-09 13:27:09.397 7432-7454 HostConnection com.example.myapplication D HostConnection::get() New Host Connection established 0xe9a68250, tid 7454 2025-07-09 13:27:09.403 7432-7454 HostConnection com.example.myapplication D HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_native_sync_v2 ANDROID_EMU_native_sync_v3 ANDROID_EMU_native_sync_v4 ANDROID_EMU_dma_v1 ANDROID_EMU_direct_mem ANDROID_EMU_host_composition_v1 ANDROID_EMU_host_composition_v2 ANDROID_EMU_vulkan ANDROID_EMU_deferred_vulkan_commands ANDROID_EMU_vulkan_null_optional_strings ANDROID_EMU_vulkan_create_resources_with_requirements ANDROID_EMU_YUV_Cache ANDROID_EMU_vulkan_ignored_handles ANDROID_EMU_has_shared_slots_host_memory_allocator ANDROID_EMU_vulkan_free_memory_sync ANDROID_EMU_vulkan_shader_float16_int8 ANDROID_EMU_vulkan_async_queue_submit ANDROID_EMU_sync_buffer_data ANDROID_EMU_vulkan_async_qsri ANDROID_EMU_read_color_buffer_dma GL_OES_vertex_array_object GL_KHR_texture_compression_astc_ldr ANDROID_EMU_host_side_tracing ANDROID_EMU_gles_max_version_2 2025-07-09 13:27:09.404 7432-7454 OpenGLRenderer com.example.myapplication W Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without... 2025-07-09 13:27:09.411 7432-7454 EGL_emulation com.example.myapplication D eglCreateContext: 0xe9a68170: maj 2 min 0 rcv 2 2025-07-09 13:27:09.414 7432-7454 EGL_emulation com.example.myapplication D eglMakeCurrent: 0xe9a68170: ver 2 0 (tinfo 0xe9db64d0) (first time) 2025-07-09 13:27:09.438 7432-7454 Gralloc4 com.example.myapplication I mapper 4.x is not supported 2025-07-09 13:27:09.439 7432-7454 HostConnection com.example.myapplication D createUnique: call 2025-07-09 13:27:09.439 7432-7454 HostConnection com.example.myapplication D HostConnection::get() New Host Connection established 0xe9a6acc0, tid 7454 2025-07-09 13:27:09.467 7432-7454 HostConnection com.example.myapplication D HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_native_sync_v2 ANDROID_EMU_native_sync_v3 ANDROID_EMU_native_sync_v4 ANDROID_EMU_dma_v1 ANDROID_EMU_direct_mem ANDROID_EMU_host_composition_v1 ANDROID_EMU_host_composition_v2 ANDROID_EMU_vulkan ANDROID_EMU_deferred_vulkan_commands ANDROID_EMU_vulkan_null_optional_strings ANDROID_EMU_vulkan_create_resources_with_requirements ANDROID_EMU_YUV_Cache ANDROID_EMU_vulkan_ignored_handles ANDROID_EMU_has_shared_slots_host_memory_allocator ANDROID_EMU_vulkan_free_memory_sync ANDROID_EMU_vulkan_shader_float16_int8 ANDROID_EMU_vulkan_async_queue_submit ANDROID_EMU_sync_buffer_data ANDROID_EMU_vulkan_async_qsri ANDROID_EMU_read_color_buffer_dma GL_OES_vertex_array_object GL_KHR_texture_compression_astc_ldr ANDROID_EMU_host_side_tracing ANDROID_EMU_gles_max_version_2 2025-07-09 13:27:10.478 7432-7432 AndroidRuntime com.example.myapplication D Shutting down VM 2025-07-09 13:27:10.479 7432-7432 AndroidRuntime com.example.myapplication E FATAL EXCEPTION: main Process: com.example.myapplication, PID: 7432 android.view.WindowManager$BadTokenException: Unable to add window -- token null is not valid; is your activity running? at android.view.ViewRootImpl.setView(ViewRootImpl.java:1068) at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:409) at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:109) at android.app.Dialog.show(Dialog.java:340) at android.app.AlertDialog$Builder.show(AlertDialog.java:1131) at com.example.myapplication.MyBaseAdapter$1.onClick(MyBaseAdapter.java:55) at android.view.View.performClick(View.java:7448) at android.view.View.performClickInternal(View.java:7425) at android.view.View.access$3600(View.java:810) at android.view.View$PerformClick.run(View.java:28305) at android.os.Handler.handleCallback(Handler.java:938) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:223) at android.app.ActivityThread.main(ActivityThread.java:7656) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947) 2025-07-09 13:27:10.509 7432-7432 Process com.example.myapplication I Sending signal. PID: 7432 SIG: 9 ---------------------------- PROCESS ENDED (7432) for package com.example.myapplication ----------------------------
07-10
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