散文網(wǎng) » 生活 »日常 » InputMethodManager輸入法窗口為啥dumpsys是全屏？千里馬帶你疑難解惑輸入法相關(guān)

InputMethodManager輸入法窗口為啥dumpsys是全屏？千里馬帶你疑難解惑輸入法相關(guān)

2023-09-15 18:14 作者:千里馬學(xué)框架 0人讀過 | 我要投稿

背景：

hi，粉絲朋友：大家好！近來陸續(xù)有粉絲朋友在群里討論到輸入法，這個部分其實馬哥之前也是研究過的，所以相對來說比較熟悉，其實android設(shè)計輸入法的思路其實和壁紙是一模一樣的。大體設(shè)計圖如下：

一般看到的輸入法界面就是輸入法進程，一般都是實現(xiàn)了InputMethodService的子類實現(xiàn)，這里面會創(chuàng)建對應(yīng)的輸入法窗口展示，所以這里要說明輸入法它不是個Activity哈，只是個全局窗口而已，和狀態(tài)欄啥的一樣。

剛好有個同學(xué)問了一個輸入法的疑問，為啥dumpsys window windows和dumpsys SurfaceFlinger時候明明看到輸入法是全屏，這個是怎么回事？

1、dumpsys相關(guān)SurfaceFlinger和window看看全屏情況

以下是winsocpe的SurfaceFlinger圖層情況

activeBuffer : w:1440, h:2876, stride:2816, format:1

再看看對應(yīng)的window相關(guān)的信息：

也展示出來的大小是 frame : (0, 84) - (1440, 2960) 也都是全屏。

2、疑問點既然輸入法全屏為啥activity還可以響應(yīng)事件

首先顯示部分遮蓋理解：

這個部分相對比較好理解，因為窗口雖然是占全屏幕，但是可以又一部分透明透看到底部的窗口

其次觸摸部分：

層級結(jié)構(gòu)看輸入法應(yīng)該是蓋在Activity的窗口上面，而且輸入法又是全屏的，那么理論上所有的觸摸事件就應(yīng)該到輸入法的窗口，而不應(yīng)該到Activity的窗口。但是實際情況又是如下圖所示：

即只有輸入法顯示的部分才是輸入法可以觸摸的，觸摸activity的部分那么activity就會響應(yīng)對應(yīng)的觸摸事件。

需要回答這個問題就又需要使用我們input課程的知識：需要試看課程的可以點擊這里：https://www.bilibili.com/video/BV1YS4y1K7rj/[1]

也可以+w：androidframework007 找我

要學(xué)回查看dumpsys input輸出信息：

Input?Dispatcher?State: ??DispatchEnabled:?true ??DispatchFrozen:?false ??InputFilterEnabled:?false ??FocusedDisplayId:?0 ??FocusedApplications: ????displayId=0,?name='ActivityRecord{49e3140?u0?com.android.quicksearchbox/.SearchActivity}?t439}',?dispatchingTimeout=5000ms ??FocusedWindows: ????displayId=0,?name='313a198?com.android.quicksearchbox/com.android.quicksearchbox.SearchActivity' ??FocusRequests: ????displayId=0,?name='313a198?com.android.quicksearchbox/com.android.quicksearchbox.SearchActivity'?result='OK' ??Pointer?Capture?Requested:?false ??Current?Window?with?Pointer?Capture:?None ??TouchStates:?<no?displays?touched> ??Display:?0 ????logicalSize=1440x2960 ????????transform?(ROT_0)?(IDENTITY) ????Windows: ??????0:?name='[Gesture?Monitor]?swipe-up',?id=106,?displayId=0,?inputConfig=NOT_FOCUSABLE?|?TRUSTED_OVERLAY?|?SPY,?alpha=1.00,?frame=[0,0][0,0],?globalScale=1.000000,?applicationInfo.name=[Gesture?Monitor]?swipe-up,?applicationInfo.token=<null>,?touchableRegion=[-14399,-29599][14400,29600],?ownerPid=1047,?ownerUid=10097,?dispatchingTimeout=5000ms,?hasToken=true,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(IDENTITY) ??????1:?name='[Gesture?Monitor]?edge-swipe',?id=81,?displayId=0,?inputConfig=NOT_FOCUSABLE?|?TRUSTED_OVERLAY?|?SPY,?alpha=1.00,?frame=[0,0][0,0],?globalScale=1.000000,?applicationInfo.name=[Gesture?Monitor]?edge-swipe,?applicationInfo.token=<null>,?touchableRegion=[-14399,-29599][14400,29600],?ownerPid=762,?ownerUid=10099,?dispatchingTimeout=5000ms,?hasToken=true,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(IDENTITY) ??????2:?name='StrictModeFlash',?id=93,?displayId=0,?inputConfig=NO_INPUT_CHANNEL?|?NOT_VISIBLE?|?NOT_FOCUSABLE?|?NOT_TOUCHABLE?|?PREVENT_SPLITTING?|?TRUSTED_OVERLAY,?alpha=1.00,?frame=[0,0][1440,2960],?globalScale=1.000000,?applicationInfo.name=,?applicationInfo.token=<null>,?touchableRegion=<empty>,?ownerPid=0,?ownerUid=0,?dispatchingTimeout=0ms,?hasToken=false,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(IDENTITY) ??????3:?name='4b4d6f1?PointerLocation?-?display?0',?id=49,?displayId=0,?inputConfig=NO_INPUT_CHANNEL?|?NOT_FOCUSABLE?|?NOT_TOUCHABLE?|?PREVENT_SPLITTING?|?TRUSTED_OVERLAY,?alpha=1.00,?frame=[0,0][1440,2960],?globalScale=1.000000,?applicationInfo.name=,?applicationInfo.token=<null>,?touchableRegion=<empty>,?ownerPid=572,?ownerUid=1000,?dispatchingTimeout=0ms,?hasToken=false,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(IDENTITY) ??????4:?name='6f6f2e3?NavigationBar0',?id=86,?displayId=0,?inputConfig=NOT_FOCUSABLE?|?TRUSTED_OVERLAY?|?WATCH_OUTSIDE_TOUCH,?alpha=1.00,?frame=[0,2792][1440,2960],?globalScale=1.000000,?applicationInfo.name=,?applicationInfo.token=<null>,?touchableRegion=<empty>,?ownerPid=762,?ownerUid=10099,?dispatchingTimeout=5000ms,?hasToken=true,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(TRANSLATE) ????????????1.0000??0.0000??-0.0000 ????????????0.0000??1.0000??-2792.0000 ????????????0.0000??0.0000??1.0000 ??????5:?name='1afd988?StatusBar',?id=87,?displayId=0,?inputConfig=NOT_FOCUSABLE?|?TRUSTED_OVERLAY,?alpha=1.00,?frame=[0,0][1440,84],?globalScale=1.000000,?applicationInfo.name=,?applicationInfo.token=<null>,?touchableRegion=[0,0][1440,84],?ownerPid=762,?ownerUid=10099,?dispatchingTimeout=5000ms,?hasToken=true,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(IDENTITY) ??????6:?name='recents_animation_input_consumer',?id=101,?displayId=0,?inputConfig=NOT_VISIBLE?|?TRUSTED_OVERLAY,?alpha=1.00,?frame=[0,0][1440,2960],?globalScale=1.000000,?applicationInfo.name=recents_animation_input_consumer,?applicationInfo.token=0x77cb0493d7d0,?touchableRegion=[0,0][1440,2960],?ownerPid=572,?ownerUid=1000,?dispatchingTimeout=5000ms,?hasToken=true,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(IDENTITY) ??????7:?name='99d71b?InputMethod',?id=278,?displayId=0,?inputConfig=NOT_FOCUSABLE?|?TRUSTED_OVERLAY,?alpha=1.00,?frame=[0,84][1440,2960],?globalScale=1.000000,?applicationInfo.name=,?applicationInfo.token=<null>,?touchableRegion=[0,1759][1440,2960],?ownerPid=1194,?ownerUid=10081,?dispatchingTimeout=5000ms,?hasToken=true,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(TRANSLATE) ????????????1.0000??-0.0000??0.0000 ????????????-0.0000??1.0000??-84.0000 ????????????0.0000??0.0000??1.0000 ??????8:?name='313a198?com.android.quicksearchbox/com.android.quicksearchbox.SearchActivity',?id=273,?displayId=0,?inputConfig=0x0,?alpha=1.00,?frame=[0,0][1440,2960],?globalScale=1.000000,?applicationInfo.name=ActivityRecord{49e3140?u0?com.android.quicksearchbox/.SearchActivity}?t439},?applicationInfo.token=0x77cb04980b50,?touchableRegion=[0,0][1440,2960],?ownerPid=1441,?ownerUid=10084,?dispatchingTimeout=5000ms,?hasToken=true,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(IDENTITY) ??????9:?name='c6a010e?ActivityRecordInputSink?com.android.quicksearchbox/.SearchActivity',?id=120,?displayId=0,?inputConfig=NO_INPUT_CHANNEL?|?NOT_FOCUSABLE,?alpha=1.00,?frame=[0,0][0,0],?globalScale=0.000000,?applicationInfo.name=,?applicationInfo.token=<null>,?touchableRegion=[-14399,-29599][14400,29600],?ownerPid=572,?ownerUid=1000,?dispatchingTimeout=0ms,?hasToken=false,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(IDENTITY) ??????10:?name='efb17ce?ActivityRecordInputSink?com.android.camera2/com.android.camera.CameraActivity',?id=141,?displayId=0,?inputConfig=NO_INPUT_CHANNEL?|?NOT_VISIBLE?|?NOT_FOCUSABLE?|?NOT_TOUCHABLE,?alpha=1.00,?frame=[0,0][0,0],?globalScale=0.000000,?applicationInfo.name=,?applicationInfo.token=<null>,?touchableRegion=[-14399,-29599][14400,29600],?ownerPid=572,?ownerUid=1000,?dispatchingTimeout=0ms,?hasToken=false,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(IDENTITY) ??????11:?name='8dd0f70?ActivityRecordInputSink?com.android.settings/.SubSettings',?id=213,?displayId=0,?inputConfig=NO_INPUT_CHANNEL?|?NOT_VISIBLE?|?NOT_FOCUSABLE?|?NOT_TOUCHABLE,?alpha=1.00,?frame=[0,0][0,0],?globalScale=0.000000,?applicationInfo.name=,?applicationInfo.token=<null>,?touchableRegion=[0,0][1440,2960],?ownerPid=572,?ownerUid=1000,?dispatchingTimeout=0ms,?hasToken=false,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(IDENTITY) ??????12:?name='214bf5f?ActivityRecordInputSink?com.android.settings/.SubSettings',?id=196,?displayId=0,?inputConfig=NO_INPUT_CHANNEL?|?NOT_VISIBLE?|?NOT_FOCUSABLE?|?NOT_TOUCHABLE,?alpha=1.00,?frame=[0,0][0,0],?globalScale=0.000000,?applicationInfo.name=,?applicationInfo.token=<null>,?touchableRegion=[0,0][1440,2960],?ownerPid=572,?ownerUid=1000,?dispatchingTimeout=0ms,?hasToken=false,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(IDENTITY) ??????13:?name='2001b8f?ActivityRecordInputSink?com.android.settings/.homepage.SettingsHomepageActivity',?id=178,?displayId=0,?inputConfig=NO_INPUT_CHANNEL?|?NOT_VISIBLE?|?NOT_FOCUSABLE?|?NOT_TOUCHABLE,?alpha=1.00,?frame=[0,0][0,0],?globalScale=0.000000,?applicationInfo.name=,?applicationInfo.token=<null>,?touchableRegion=[0,0][1440,2960],?ownerPid=572,?ownerUid=1000,?dispatchingTimeout=0ms,?hasToken=false,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(IDENTITY) ??????14:?name='edb3266?com.android.launcher3/com.android.launcher3.uioverrides.QuickstepLauncher',?id=266,?displayId=0,?inputConfig=DUPLICATE_TOUCH_TO_WALLPAPER,?alpha=1.00,?frame=[0,0][1440,2960],?globalScale=1.000000,?applicationInfo.name=ActivityRecord{c22322a?u0?com.android.launcher3/.uioverrides.QuickstepLauncher}?t437},?applicationInfo.token=0x77cb049417f0,?touchableRegion=[0,0][1440,2960],?ownerPid=1047,?ownerUid=10097,?dispatchingTimeout=5000ms,?hasToken=true,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(IDENTITY) ??????15:?name='91a1ad2?ActivityRecordInputSink?com.android.launcher3/.uioverrides.QuickstepLauncher',?id=109,?displayId=0,?inputConfig=NO_INPUT_CHANNEL?|?NOT_FOCUSABLE,?alpha=1.00,?frame=[0,0][0,0],?globalScale=0.000000,?applicationInfo.name=,?applicationInfo.token=<null>,?touchableRegion=[-14399,-29599][14400,29600],?ownerPid=572,?ownerUid=1000,?dispatchingTimeout=0ms,?hasToken=false,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(IDENTITY) ??????16:?name='Wallpaper?BBQ?wrapper#79',?id=79,?displayId=0,?inputConfig=NO_INPUT_CHANNEL,?alpha=1.00,?frame=[-71,-147][1760,3108],?globalScale=1.000000,?applicationInfo.name=,?applicationInfo.token=<null>,?touchableRegion=<empty>,?ownerPid=762,?ownerUid=10099,?dispatchingTimeout=5000ms,?hasToken=false,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(SCALE?TRANSLATE) ????????????0.5160??-0.0000??37.1499 ????????????-0.0000??0.5160??76.3636 ????????????0.0000??0.0000??1.0000 ??????17:?name='b2dd605?com.android.systemui.ImageWallpaper',?id=78,?displayId=0,?inputConfig=NOT_FOCUSABLE?|?NOT_TOUCHABLE?|?PREVENT_SPLITTING?|?IS_WALLPAPER,?alpha=1.00,?frame=[-71,-147][-71,-147],?globalScale=1.000000,?applicationInfo.name=,?applicationInfo.token=<null>,?touchableRegion=<empty>,?ownerPid=762,?ownerUid=10099,?dispatchingTimeout=5000ms,?hasToken=true,?touchOcclusionMode=BLOCK_UNTRUSTED ????????transform?(ROT_0)?(SCALE?TRANSLATE) ????????????0.5160??-0.0000??37.1499 ????????????-0.0000??0.5160??76.3636 ????????????0.0000??0.0000??1.0000

上面是所有的觸摸window的在input中的情況，我們重點關(guān)注是InputMethod這個窗口：

7: name='99d71b InputMethod', id=278, displayId=0, inputConfig=NOT_FOCUSABLE | TRUSTED_OVERLAY, alpha=1.00, frame=[0,84][1440,2960], globalScale=1.000000, applicationInfo.name=, applicationInfo.token=, touchableRegion=[0,1759][1440,2960], ownerPid=1194, ownerUid=10081, dispatchingTimeout=5000ms, hasToken=true, touchOcclusionMode=BLOCK_UNTRUSTED ? ? ? ?transform (ROT_0) (TRANSLATE) ? ? ? ? ? ?1.0000 ?-0.0000 ?0.0000 ? ? ? ? ? ?-0.0000 ?1.0000 ?-84.0000 ? ? ? ? ? ?0.0000 ?0.0000 ?1.0000

可以看到的它的畫面大小確實是frame=[0,84][1440,2960]，但是有一個touchableRegion=[0,1759][1440,2960],這個區(qū)域才是真正的觸摸區(qū)域，這里我們就看出了貓膩，這里y是從1759的位置才開始可以觸摸了，也就是我們上面看到的輸入法的鍵盤區(qū)域。即這個touchableRegion就解答了為啥上部分區(qū)域觸摸事件沒有給輸入法窗口，因為輸入法窗口觸摸區(qū)域就不包含那一部分，所以觸摸事件在上部分區(qū)域就會繼續(xù)傳遞到下面的窗口即Activity窗口。那么問題來了請問這個touchableRegion是在哪里進行的設(shè)置呢？

3、touchableRegion設(shè)置追蹤

這里我們知道一般input中的window是由InputMonitor設(shè)置的： frameworks/base/services/core/java/com/android/server/wm/InputMonitor.java 中搜索到如下類似代碼：

????????????inputWindowHandle.setTouchableRegion(mTmpRegion);

在這個方法加入對應(yīng)的堆棧打印 frameworks/base/services/core/java/com/android/server/wm/InputWindowHandleWrapper.java

???void?setTouchableRegion(Region?region)?{ ????????if?(mHandle.touchableRegion.equals(region))?{ ????????????return; ????????} ??????if?(region.getBounds().top?>?1000)?{ ????????????android.util.Log.i("lsm111","setTouchableRegion?"?+?region?+?"?mHandle?=?"+mHandle,new?Exception()); ???????} ????????mHandle.touchableRegion.set(region); ????????mChanged?=?true; ????}

相關(guān)的堆棧setTouchableRegion

*?daemon?started?successfully ---------?beginning?of?main 09-15?11:59:46.669???572???593?I?lsm111??:?setTouchableRegion?SkRegion((0,1675,1440,2876)) 09-15?11:59:46.669???572???593?I?lsm111??:?java.lang.Exception 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.InputWindowHandleWrapper.setTouchableRegion(InputWindowHandleWrapper.java:146) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.InputMonitor.populateInputWindowHandle(InputMonitor.java:315) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.InputMonitor$UpdateInputForAllWindowsConsumer.accept(InputMonitor.java:636) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.InputMonitor$UpdateInputForAllWindowsConsumer.accept(InputMonitor.java:508) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowContainer$ForAllWindowsConsumerWrapper.apply(WindowContainer.java:2624) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowContainer$ForAllWindowsConsumerWrapper.apply(WindowContainer.java:2614) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowState.applyInOrderWithImeWindows(WindowState.java:4903) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowState.forAllWindows(WindowState.java:4747) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowContainer.forAllWindows(WindowContainer.java:1611) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowContainer.forAllWindows(WindowContainer.java:1611) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.DisplayContent$ImeContainer.forAllWindowForce(DisplayContent.java:5175) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.DisplayContent.forAllImeWindows(DisplayContent.java:2814) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowState.applyImeWindowsIfNeeded(WindowState.java:4896) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowState.applyInOrderWithImeWindows(WindowState.java:4902) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowState.forAllWindows(WindowState.java:4747) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowContainer.forAllWindows(WindowContainer.java:1611) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowContainer.forAllWindows(WindowContainer.java:1611) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowContainer.forAllWindows(WindowContainer.java:1611) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowContainer.forAllWindows(WindowContainer.java:1611) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowContainer.forAllWindows(WindowContainer.java:1611) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowContainer.forAllWindows(WindowContainer.java:1611) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowContainer.forAllWindows(WindowContainer.java:1611) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowContainer.forAllWindows(WindowContainer.java:1611) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.WindowContainer.forAllWindows(WindowContainer.java:1628) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.InputMonitor$UpdateInputForAllWindowsConsumer.updateInputWindows(InputMonitor.java:548) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.InputMonitor$UpdateInputForAllWindowsConsumer.-$$Nest$mupdateInputWindows(Unknown?Source:0) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.wm.InputMonitor$UpdateInputWindows.run(InputMonitor.java:134) 09-15?11:59:46.669???572???593?I?lsm111??:??at?android.os.Handler.handleCallback(Handler.java:942) 09-15?11:59:46.669???572???593?I?lsm111??:??at?android.os.Handler.dispatchMessage(Handler.java:99) 09-15?11:59:46.669???572???593?I?lsm111??:??at?android.os.Looper.loopOnce(Looper.java:201) 09-15?11:59:46.669???572???593?I?lsm111??:??at?android.os.Looper.loop(Looper.java:288) 09-15?11:59:46.669???572???593?I?lsm111??:??at?android.os.HandlerThread.run(HandlerThread.java:67) 09-15?11:59:46.669???572???593?I?lsm111??:??at?com.android.server.ServiceThread.run(ServiceThread.java:44)

可以看出這里的setTouchableRegion設(shè)置是由觸發(fā) InputMonitor$UpdateInputForAllWindowsConsumer.updateInputWindows

那么Region來自哪里呢？

???if?(!useSurfaceBoundsAsTouchRegion)?{ ???//實際是調(diào)用了WindowState的getSurfaceTouchableRegion方法 ????????????w.getSurfaceTouchableRegion(mTmpRegion,?w.mAttrs); ????????????inputWindowHandle.setTouchableRegion(mTmpRegion); ????????}

這里又回調(diào)用到WindowState的getTouchableRegion方法：

????/**?Get?the?touchable?region?in?global?coordinates.?*/ ????void?getTouchableRegion(Region?outRegion)?{ ????????final?Rect?frame?=?mWindowFrames.mFrame; ????????switch?(mTouchableInsets)?{//關(guān)鍵的mTouchableInsets決定取哪個區(qū)域 ????????????default: ????????????case?TOUCHABLE_INSETS_FRAME: ????????????????outRegion.set(frame); ????????????????break; ????????????case?TOUCHABLE_INSETS_CONTENT: ????????????????applyInsets(outRegion,?frame,?mGivenContentInsets); ????????????????break; ????????????case?TOUCHABLE_INSETS_VISIBLE: ????????????????applyInsets(outRegion,?frame,?mGivenVisibleInsets); ????????????????break; ????????????case?TOUCHABLE_INSETS_REGION:?{//輸入法執(zhí)行到這里 ????????????????outRegion.set(mGivenTouchableRegion); ????????????????if?(frame.left?!=?0?||?frame.top?!=?0)?{ ????????????????????outRegion.translate(frame.left,?frame.top); ????????????????} ????????????????break; ????????????} ????????} ????????cropRegionToRootTaskBoundsIfNeeded(outRegion); ????????subtractTouchExcludeRegionIfNeeded(outRegion); ????}

問題就是mGivenTouchableRegion來自哪里？哈哈這里經(jīng)過尋找發(fā)現(xiàn)在WindowManagerService進行賦值的，具體堆棧如下：

09-15?16:09:34.367???551??1330?I?lsm111??:?Window{e201e2f?u0?InputMethod}?touchableRegion?=?SkRegion((0,1675,1440,2876)) 09-15?16:09:34.367???551??1330?I?lsm111??:?java.lang.Exception 09-15?16:09:34.367???551??1330?I?lsm111??:??at?com.android.server.wm.WindowManagerService.setInsetsWindow(WindowManagerService.java:2165) 09-15?16:09:34.367???551??1330?I?lsm111??:??at?com.android.server.wm.Session.setInsets(Session.java:279) 09-15?16:09:34.367???551??1330?I?lsm111??:??at?android.view.IWindowSession$Stub.onTransact(IWindowSession.java:813) 09-15?16:09:34.367???551??1330?I?lsm111??:??at?com.android.server.wm.Session.onTransact(Session.java:175) 09-15?16:09:34.367???551??1330?I?lsm111??:??at?android.os.Binder.execTransactInternal(Binder.java:1285) 09-15?16:09:34.367???551??1330?I?lsm111??:??at?android.os.Binder.execTransact(Binder.java:1244)

是客戶端發(fā)起的調(diào)用設(shè)置的Inset，這里就相當(dāng)于到了Inset部分了，和類是狀態(tài)欄，導(dǎo)航欄那個是一回事，在這就不深入分析了。

引用鏈接

[1] 需要試看課程的可以點擊這里：https://www.bilibili.com/video/BV1YS4y1K7rj/: https://www.bilibili.com/video/BV1YS4y1K7rj/

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