这篇文章主要讲解了“Android开发sensor旋转屏问题如何解决”，文中的讲解内容简单清晰，易于学习与理解，下面请大家跟着小编的思路慢慢深入，一起来研究和学习“Android开发sensor旋转屏问题如何解决”吧！
一、查询 activity xml 配置screenOrientation信息：
找个测试机器，安装此APP。as中 devices explorer界面中打开此apk安装目录，双击apk。或者把apk托到as中，在反编译的资产xml文件搜索此activity，并查看 android:screenOrientation 属性。或者使用 aapt dump xmltree 命令查看。
configChanges 属性是为了防止重启activity
<activity android:theme="@ref/0x7f130170" android:label="@ref/0x7f1200c6" android:name="com.miui.gallery.activity.ExternalPhotoPageActivity" android:screenOrientation="4" android:configChanges="0xda0" android:showWhenLocked="true">二、事件发生时间点分析：
事件发生时间点=录屏文件名的时间 + 录屏发生时视频经过的秒数
结合问题描述和usagestats服务的信息倒推事件发生时间点
三、logcat查看sensor激活状态：
此log是高通 sensors-hal 层打印的
状态栏--控制按钮--“方向锁定” 开启时，en=0 即 sensor关闭！
/vendor/qcom/proprietary/sensors-see/sensors-hal-2.0/framework/sensors_hal.cpp
logcat中搜索 device_orientation
2021-08-09 17:07:23.037 1021-1021/? I/sensors-hal: activate:209, android.sensor.device_orientation/272 en=12021-08-09 17:07:23.048 1021-1021/? I/sensors-hal: activate:220, android.sensor.device_orientation/272 en=1 completed四、查看APP是否注册旋转屏sensor
有的APP注册的是加速度sensor，使用自己的算法计算
APP注册 android.view.OrientationEventListener 回调，自身代码调节旋转Demo：
private void registerOrientation(){ OrientationEventListener orientationListener = new OrientationEventListener(this) { @Override public void onOrientationChanged(int orientation) { Log.d(TAG, "onOrientationChanged: " + orientation); if (orientation == OrientationEventListener.ORIENTATION_UNKNOWN) { return; // 手机平放时，检测不到有效的角度 } // 设置竖屏 if (((orientation >= 0) && (orientation <= 30)) || (orientation >= 330)) { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); } // 设置横屏 else if (((orientation >= 230) && (orientation <= 310))) { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); } } }; orientationListener.enable(); }五、sensorservice 信息
DUMP OF SERVICE CRITICAL sensorservice:
bugreport dumpsys sensorservice信息查看 注册的sensor信息
Previous Registrations:17:57:12 + 0x0000002d pid=20420 uid=10265 package=android.view.OrientationEventListener samplingPeriod=200000us batchingPeriod=0us17:57:12 + 0x0000002d pid=20420 uid=10265 package=android.view.OrientationEventListener samplingPeriod=200000us batchingPeriod=0us相关sensor：
// 加速计传感器handle: 0x0100000b// app通常会注册回调 android.view.OrientationEventListener 此类内部注册了 加速计sensor，用来监听旋转角度// android.sensor.accelerometerpublic static final int TYPE_ACCELEROMETER = 1; 0x0100000b) lsm6dso Accelerometer Non-wakeup | STMicro | ver: 142870 | type: android.sensor.accelerometer(1) | perm: n/a | flags: 0x00000980continuous | minRate=1.00Hz | maxRate=415.97Hz | FIFO (max,reserved) = (10000, 3000) events | non-wakeUp | highest rate level = 3, support shared mem: gralloc,0x0100015f) lsm6dso Accelerometer-Uncalibrated Non-wakeup | STMicro | ver: 142870 | type: android.sensor.accelerometer_uncalibrated(35) | perm: n/a | flags: 0x00000980continuous | minRate=1.00Hz | maxRate=415.97Hz | FIFO (max,reserved) = (10000, 3000) events | non-wakeUp | highest rate level = 3, support shared mem: gralloc, 0x5f676273) Gyroscope Bias (debug) | AOSP | ver: 1 | type: android.sensor.accelerometer(1) | perm: n/a | flags: 0x00000000continuous | maxDelay=0us | maxRate=415.97Hz | no batching | non-wakeUp | // 方向传感器---用户app旋转屏 handle：0x0100010f// android.sensor.device_orientationpublic static final int TYPE_DEVICE_ORIENTATION = 27;0x0100010f) device_orient Non-wakeup | xiaomi | ver: 1 | type: android.sensor.device_orientation(27) | perm: n/a | flags: 0x00000002on-change | maxDelay=0us | minDelay=0us | FIFO (max,reserved) = (10000, 0) events | non-wakeUp | // 其 Wakeup handle： 0x01000110 com.android.server.policy.WindowOrientationListener 注册此类型0x01000110) device_orient Wakeup | xiaomi | ver: 1 | type: android.sensor.device_orientation(27) | perm: n/a | flags: 0x00000003on-change | maxDelay=0us | minDelay=0us | FIFO (max,reserved) = (10000, 0) events | wakeUp |bugreport device_orient 信息查看上报事件
# 0 表示通常的正常# 1 表示顺时针旋转90度device_orient Wakeup: last 10 events 1 (ts=68477.447943014, wall=17:49:58.724) 0.00, 2 (ts=68478.554363222, wall=17:49:59.831) 0.00, 3 (ts=68478.989033691, wall=17:50:00.265) 0.00, 4 (ts=68479.423711660, wall=17:50:00.701) 1.00, 5 (ts=68482.743111608, wall=17:50:04.022) 0.00, 6 (ts=68486.101931400, wall=17:50:07.379) 0.00, 7 (ts=68495.309003118, wall=17:50:16.585) 0.00, 8 (ts=68505.308247806, wall=17:50:26.584) 1.00, 9 (ts=68507.166153170, wall=17:50:28.444) 0.00, 10 (ts=68513.214244108, wall=17:50:34.491) 0.00,六、有现场，查看当前activity信息
logcat查看当前activity： 有很多其他日志可供查看
07-31 17:50:25.687563 4486 4486 D Nav_RecentsImpl: onResumed className=com.miui.gallery.activity.ExternalPhotoPageActivity,mIsInAnotherPro=false,isKeyguardLocked=false,mNavStubView=com.miui.home.recents.NavStubView{f994da4 G.E...... ......I. 0,0-1080,35}根据DUMP OF SERVICE usagestats:内容 查看时间点的APP
time="2021-07-08 09:29:02" type=ACTIVITY_PAUSED package=com.ainemo.dragoon class=com.meeting.call.activity.XylinkMeetingActivity instanceId=40437940 taskRootPackage=com.ainemo.dragoon taskRootClass=com.ainemo.android.activity.MainActivity flags=0x0 log的结尾： In-memory daily stats timeRange="2021/8/21 08:14–18:08" packages现场，命令方式查询当前activity：
adb shell dumpsys window | findstr mCurrentFocusdumpsys window | grep mCurrentFocus查看包信息
adb shell dumpsys package com.eg.android.AlipayGphone$ adb shell dumpsys package com.android.stkPackages: Package [com.android.stk] (ac39f18): userId=1001 sharedUser=SharedUserSetting{411f5ce android.uid.phone/1001} pkg=Package{fde9cef com.android.stk} codePath=/system/app/Stk resourcePath=/system/app/Stk # apk 安装包位置 legacyNativeLibraryDir=/system/app/Stk/lib extractNativeLibs=true primaryCpuAbi=null secondaryCpuAbi=null cpuAbiOverride=null versionCode=31 minSdk=31 targetSdk=31 minExtensionVersions=[] versionName=12 # 版本号 usesNonSdkApi=true splits=[base] apkSigningVersion=3 applicationInfo=PackageImpl{fde9cef com.android.stk} flags=[ SYSTEM HAS_CODE ALLOW_CLEAR_USER_DATA ALLOW_BACKUP ] privateFlags=[ PRIVATE_FLAG_ACTIVITIES_RESIZE_MODE_RESIZEABLE_VIA_SDK_VERSION ALLOW_AUDIO_PLAYBACK_CAPTURE DEFAULT_TO_DEVICE_PROTECTED_STORAGE DIRECT_BOOT_AWARE PRIVATE_FLAG_ALLOW_NATIVE_HEAP_POINTER_TAGGING ] forceQueryable=false queriesPackages=[] dataDir=/data/user_de/0/com.android.stk # 数据目录 supportsScreens=[small, medium, large, xlarge, resizeable, anyDensity] ############ timeStamp=2009-01-01 08:00:00 firstInstallTime=2009-01-01 08:00:00 # 首次安装时间 lastUpdateTime=2009-01-01 08:00:00 # 上次更新时间 signatures=PackageSignatures{573d3fc version:3, signatures:[b4addb29], past signatures:[]} installPermissionsFixed=false pkgFlags=[ SYSTEM HAS_CODE ALLOW_CLEAR_USER_DATA ALLOW_BACKUP ]查看apk内部 AndroidManifest.xml
aapt dump xmltree C:\Users\lish\Desktop\test.apk AndroidManifest.xml七、App写旋转屏的几种方式：
三种方式做旋转屏:
大部分都是直接使用系统控制的，就是SystemServer进程注册的 com.android.server.policy.WindowOrientationListener 监听，然后直接控制APP的界面旋转，这个使用的 device_orient sensor。 但是因手机不同，厂商不同，有些竖直反向的旋转，系统不准旋转。
// frameworks/base/services/core/java/com/android/server/wm/DisplayRotation.java// 内部类： DisplayRotation.OrientationListenerprivate class OrientationListener extends WindowOrientationListener// 在systemserver进程中是通过 com.android.server.wm.DisplayRotation$OrientationListener 操作因此，大部分视频app又会独立注册 android.view.OrientationEventListener 监听，这个监听直接使用的加速度sensor(android.sensor.accelerometer) 这个sensor直接返回0~360度的角度。然后APP根据角度，自己控制旋转。此时“方向锁定”不起作用。
app直接使用 地磁+加速度 传感器
八、bugreport 中 mUserRotation 信息
adb shell dumpsys window displays
dumpsys window displays | grep DisplayRotation -A 30
文件中搜索 mUserRotation=
WINDOW MANAGER DISPLAY CONTENTS (dumpsys window displays) DisplayRotation mCurrentAppOrientation=SCREEN_ORIENTATION_PORTRAIT mLastOrientation=1 mRotation=0 mDeferredRotationPauseCount=0 mLandscapeRotation=ROTATION_90 mSeascapeRotation=ROTATION_270 mPortraitRotation=ROTATION_0 mUpsideDownRotation=ROTATION_180 mSupportAutoRotation=true WindowOrientationListener mEnabled=false mCurrentRotation=ROTATION_0 mSensorType=null mSensor={Sensor name="device_orient Wakeup", vendor="xiaomi", version=1, type=27, maxRange=1.0, resolution=1.0, power=0.001, minDelay=0} mRate=2 OrientationSensorJudge mDesiredRotation=-1 mProposedRotation=-1 mTouching=false # 触摸屏幕情况下，不调用 DisplayRotation.java$OrientationListener 中的 onProposedRotationChanged 方法。即不会旋转 mTouchEndedTimestampNanos=617520702367 # 抬起手时，机器开机以来的时间 如果当前时间 mCarDockRotation=-1 mDeskDockRotation=-1 mUserRotationMode=USER_ROTATION_LOCKED mUserRotation=ROTATION_90 mAllowAllRotations=false # 正常 mUserRotationMode=USER_ROTATION_LOCKED mUserRotation=ROTATION_0 mDemoHdmiRotation=ROTATION_90 mDemoHdmiRotationLock=false mUndockedHdmiRotation=-1 mLidOpenRotation=-1 mFixedToUserRotation=false九、setting信息查询 没大用，只能查当前信息
D:\>adb shell "dumpsys settings | grep rotation"_id:109 name:user_rotation pkg:android value:0 default:0 defaultSystemSet:true_id:17 name:accelerometer_rotation pkg:android value:0 default:0 defaultSystemSet:true# /frameworks/base/core/java/android/provider/Settings.java ACCELEROMETER_ROTATION # 0 表示 加速度sensor 不会用于控制屏幕方向, 1 反之._id:108 name:hide_rotation_lock_toggle_for_accessibility pkg:com.android.systemui value:0 default:0 defaultSystemSet:truebugreport 中：
DUMP OF SERVICE settings:十、用户点击状态栏“锁定旋转”行为分析：
bugreport 搜索 DeviceStateMonitor:
分析用户旋转屏时间点
++++++++++++++++++++++++++++++++ DeviceStateMonitor: mIsTetheringOn=false mIsScreenOn=true mIsCharging=false mIsPowerSaveOn=false mIsLowDataExpected=false mIsCarModeOn=false mUnsolicitedResponseFilter=127 mIsWifiConnected=true mIsAlwaysSignalStrengthReportingEnabled=false Local logs: 2021-08-22T13:15:02.576 - Screen on for display=Display id 0: DisplayInfo{"内置屏幕", displayId 0, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, FLAG_TRUSTED, real 1080 x 2400, largest app 2320 x 2276, smallest app 1080 x 956, appVsyncOff 1000000, presDeadline 13333332, mode 3, defaultMode 1, modes [{id=1, width=1080, height=2400, fps=60.000004}, {id=2, width=1080, height=2400, fps=144.00002}, {id=3, width=1080, height=2400, fps=120.00001}, {id=4, width=1080, height=2400, fps=90.0}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[2, 3, 4], mMaxLuminance=420.0, mMaxAverageLuminance=210.1615, mMinLuminance=0.323}, minimalPostProcessingSupported false, rotation 0, state ON}, DisplayMetrics{density=2.75, width=1080, height=2276, scaledDensity=2.75, xdpi=394.705, ydpi=394.307}, isValid=true 2021-08-22T13:15:03.023 - Screen on for display=Display id 0: DisplayInfo{"内置屏幕", displayId 0, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, FLAG_TRUSTED, real 1080 x 2400, largest app 2320 x 2276, smallest app 1080 x 956, appVsyncOff 1000000, presDeadline 13333332, mode 3, defaultMode 1, modes [{id=1, width=1080, height=2400, fps=60.000004}, {id=2, width=1080, height=2400, fps=144.00002}, {id=3, width=1080, height=2400, fps=120.00001}, {id=4, width=1080, height=2400, fps=90.0}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[2, 3, 4], mMaxLuminance=420.0, mMaxAverageLuminance=210.1615, mMinLuminance=0.323}, minimalPostProcessingSupported false, rotation 0, state ON}, DisplayMetrics{density=2.75, width=1080, height=2276, scaledDensity=2.75, xdpi=394.705, ydpi=394.307}, isValid=true 2021-08-22T13:15:42.385 - Wifi (default) connected ............... ++++++++++++++++++++++++++++++++ TransportManager:bugreport 搜索 BUFFER QSLog:
分析 用户点击 “方向锁定” 时间点
现场执行命令： dumpsys activity service com.android.systemui/.dump.SystemUIAuxiliaryDumpService
BUFFER QSLog: ============================================================================ 12-22 14:48:42.160 V QSLog: [custom(com.miui.securitycenter/com.miui.superpower.notification.SuperPowerTileService)] Tile updated. Label=超级省电. State=1. Icon=null. 12-22 14:48:42.160 V QSLog: [custom(com.milink.service/com.milink.ui.service.MiLinkTileService)] Tile updated. Label=投屏. State=1. Icon=null. 12-22 14:48:42.160 V QSLog: [custom(com.miui.mishare.connectivity/.tile.MiShareTileService)] Tile updated. Label=小米互传. State=1. Icon=null. 12-22 16:50:34.787 VERBOSE QSLog [rotation] Tile updated. Label=方向锁定. State=2. Icon=ResourceIcon[resId=0x7f0805a0]. 12-22 16:51:07.775 DEBUG QSLog [rotation] Tile clicked. StatusBarState=SHD. TileState=active 12-22 16:51:07.790 VERBOSE QSLog [rotation] Tile updated. Label=方向锁定. State=1. Icon=ResourceIcon[resId=0x7f0805a1].Label=方向锁定. State=2 表示 锁定
logcat 搜索 “ send click msg ” 状态栏点击事件
android_util_SeempLog.cpp 这个高通的log似乎未起作用
十一、app调用 setRequestedOrientation 请求变更activity方向配置
需要自己写打点log
X、一些知识点：
亮屏是否默认开启旋转屏sensor： 锁定旋转后，device_orient 这个sensor是否一直处于 enable状态，google 默认开启
/frameworks/base/core/java/android/provider/Settings.java
public static final int SHOW_ROTATION_SUGGESTIONS_DEFAULT = // SHOW_ROTATION_SUGGESTIONS_ENABLED; SHOW_ROTATION_SUGGESTIONS_DISABLED;感谢各位的阅读，以上就是“Android开发sensor旋转屏问题如何解决”的内容了，经过本文的学习后，相信大家对Android开发sensor旋转屏问题如何解决这一问题有了更深刻的体会，具体使用情况还需要大家实践验证。这里是编程网，小编将为大家推送更多相关知识点的文章，欢迎关注！
