问题
"Settings" app will crash immediately after open with clean Android 8 build (aosp_x86-eng) on emulator. logcat output is below:
--------- beginning of main
1536 1550 E memtrack: Couldn't load memtrack module
1536 1550 W android.os.Debug: failed to get memory consumption info: -1
--------- beginning of system
1536 1548 I ActivityManager: START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.android.settings/.Settings (has extras)} from uid 10013
1373 2321 W audio_hw_generic: Not supplying enough data to HAL, expected position 926726 , only wrote 926722
2477 2477 W zygote : Unexpected CPU variant for X86 using defaults: x86
1536 1548 I ActivityManager: Start proc 2477:com.android.settings/1000 for activity com.android.settings/.Settings
2477 2477 I zygote : The ClassLoaderContext is a special shared library.
2477 2477 D OpenGLRenderer: HWUI GL Pipeline
2477 2477 W TileUtils: Found com.android.settings.backup.BackupSettingsActivity for intent Intent { act=com.android.settings.action.SETTINGS pkg=com.android.settings } missing metadata com.android.settings.category
2477 2477 D ConditionManager: conditions loading asychronously
2477 2496 D ConditionManager: loading conditions from xml
2477 2495 E BluetoothAdapter: Bluetooth binder is null
2477 2495 V NFC : this device does not have NFC support
1388 1836 E SurfaceFlinger: ro.sf.lcd_density must be defined as a build property
2477 2500 D SuggestionParser: Day 0 for com.android.settings.suggested.category.FIRST_IMPRESSION
2477 2495 D BatteryInfo: time to make batteryStatsHelper: 1ms
1536 1554 I WifiService: requestActivityInfo uid=1000
1536 1554 I WifiService: reportActivityInfo uid=1000
1536 1554 I WifiService: getSupportedFeatures uid=1000
1536 1606 W HalDeviceManager: isWifiStarted called but mWifi is null!?
2477 2500 I SuggestionParser: Use fingerprint requires unavailable feature android.hardware.fingerprint
1536 1554 E BluetoothAdapter: Bluetooth binder is null
1536 1554 E BatteryExternalStatsWorker: no controller energy info supplied for wifi
1536 1554 E KernelCpuSpeedReader: Failed to read cpu-freq: /sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state (No such file or directory)
1536 1554 E BatteryExternalStatsWorker: modem info is invalid: ModemActivityInfo{ mTimestamp=0 mSleepTimeMs=0 mIdleTimeMs=0 mTxTimeMs[]=[0, 0, 0, 0, 0] mRxTimeMs=0 mEnergyUsed=0}
2477 2500 I SuggestionParser: Add another fingerprint requires unavailable feature android.hardware.fingerprint
2477 2495 D BatteryInfo: time for getStats: 10ms
2477 2500 W TileUtils: Found com.android.settings.backup.BackupSettingsActivity for intent Intent { act=com.android.settings.action.SETTINGS pkg=com.android.settings } missing metadata com.android.settings.category
1643 1852 D EGL_emulation: eglMakeCurrent: 0x945dab60: ver 2 0 (tinfo 0x945e4970)
1380 1380 D gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 1540096
1380 1525 D gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 1540096
2477 2499 D : HostConnection::get() New Host Connection established 0xa750eb00, tid 2499
2477 2499 I zygote : android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasWideColorDisplay retrieved: 0
2477 2499 I OpenGLRenderer: Initialized EGL, version 1.4
2477 2499 D OpenGLRenderer: Swap behavior 1
2477 2500 E SystemServiceRegistry: No service published for: wifip2p
2477 2500 E SystemServiceRegistry: android.os.ServiceManager$ServiceNotFoundException: No service published for: wifip2p
2477 2500 E SystemServiceRegistry: at android.os.ServiceManager.getServiceOrThrow(ServiceManager.java:75)
2477 2500 E SystemServiceRegistry: at android.app.SystemServiceRegistry$49.createService(SystemServiceRegistry.java:569)
2477 2500 E SystemServiceRegistry: at android.app.SystemServiceRegistry$49.createService(SystemServiceRegistry.java:567)
2477 2500 E SystemServiceRegistry: at android.app.SystemServiceRegistry$StaticServiceFetcher.getService(SystemServiceRegistry.java:987)
2477 2500 E SystemServiceRegistry: at android.app.SystemServiceRegistry.getSystemService(SystemServiceRegistry.java:914)
2477 2500 E SystemServiceRegistry: at android.app.ContextImpl.getSystemService(ContextImpl.java:1667)
2477 2500 E SystemServiceRegistry: at android.view.ContextThemeWrapper.getSystemService(ContextThemeWrapper.java:171)
2477 2500 E SystemServiceRegistry: at android.app.Activity.getSystemService(Activity.java:5915)
2477 2500 E SystemServiceRegistry: at com.android.settings.wfd.WifiDisplaySettings.isAvailable(WifiDisplaySettings.java:216)
2477 2500 E SystemServiceRegistry: at com.android.settings.SettingsActivity.doUpdateTilesList(SettingsActivity.java:845)
2477 2500 E SystemServiceRegistry: at com.android.settings.SettingsActivity.-wrap0(Unknown Source:0)
2477 2500 E SystemServiceRegistry: at com.android.settings.SettingsActivity$5.run(SettingsActivity.java:747)
2477 2500 E SystemServiceRegistry: at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:245)
2477 2500 E SystemServiceRegistry: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
2477 2500 E SystemServiceRegistry: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
2477 2500 E SystemServiceRegistry: at java.lang.Thread.run(Thread.java:764)
1536 1548 W ActivityManager: Force finishing activity com.android.settings/.Settings
1536 1552 I ActivityManager: Showing crash dialog for package com.android.settings u0
It seems that crash is somehow related to WiFi, but Android emulator shouldn't have WiFi support anyway. What could be the issue here?
回答1:
I managed to fix it myself. The problem seems to be due to com.android.settings.wfd.WifiDisplaySettings.isAvailable reporting that WiFi is available, while wifip2p service is absent. I went to WifiDisplaySettings.java:216 and replaced this check with false, so it won't try to locate the service. Now Settings can be opened properly.
回答2:
Alter your WifiDisplaySettings.java in
/YoutAospRoot/packages/apps/Settings/src/com/android/settings/wfd/WifiDisplaySettings.java
Change the code snippet
public static boolean isAvailable(Context context) {
return context.getSystemService(Context.DISPLAY_SERVICE) != null
&& context.getSystemService(Context.WIFI_P2P_SERVICE) != null;
}
To
public static boolean isAvailable(Context context) {
return false;
}
Then
make systemimage
回答3:
Maybe this can help too. I noticed that the Settings app is not crashing when building an clean Android 8 with lunch aosp_x86-userdebug instead of lunch aosp_x86-eng.
来源：https://stackoverflow.com/questions/47839955/android-8-settings-app-crashes-on-emulator-with-clean-aosp-build