20220414在MT6739的Android10系統(tǒng)下開啟導(dǎo)航欄NavigationBar(虛擬按鍵)

20220414在MT6739的Android10系統(tǒng)下開啟導(dǎo)航欄NavigationBar(虛擬按鍵)

2022/4/14 18:00

導(dǎo)航欄NavigationBar

1、源碼部分：

frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java

mHasNavigationBar = res.getBoolean(com.android.internal.R.bool.config_showNavigationBar);

// Allow a system property to override this. Used by the emulator.

// See also hasNavigationBar().

String navBarOverride = SystemProperties.get("qemu.hw.mainkeys");

if ("1".equals(navBarOverride)) {

? ? mHasNavigationBar = false;

} else if ("0".equals(navBarOverride)) {

? ? mHasNavigationBar = true;

}

Z:\mt6739_android10\frameworks\base\services\core\java\com\android\server\policy\PhoneWindowManager.java

? ? // Use this instead of checking config_showNavigationBar so that it can be consistently

? ? // overridden by qemu.hw.mainkeys in the emulator.

? ? @Override

? ? public boolean hasNavigationBar() {

? ? ? ? return mDefaultDisplayPolicy.hasNavigationBar();

? ? }

修改為：

? ? // Use this instead of checking config_showNavigationBar so that it can be consistently

? ? // overridden by qemu.hw.mainkeys in the emulator.

? ? @Override

? ? public boolean hasNavigationBar() {

? ? ? ? //return mDefaultDisplayPolicy.hasNavigationBar();

? ? ? ? return true;

? ? }



2、顯示方案：

[1]、使用adb命令開啟Android手機(jī)虛擬按鍵（導(dǎo)航欄）

【如果如下操作可以打開導(dǎo)航欄，就有的搞！否則就是JAVA代碼被拿掉了，就很麻煩了！】

adb root

adb remount

adb shell

$ getprop qemu.hw.mainkeys #查看值

$ setprop qemu.hw.mainkeys 0 #設(shè)置值為0，屬性值為1 表示未打開虛擬按鍵，屬性值為0表示一直打開虛擬按鍵

【殺掉當(dāng)前的launcher】

$ stop

【重啟launcher】

$ start

console:/ $ su

console:/ #

console:/ # cd /data

console:/data # ll

total 189

drwxrwx--x? 55 system? system? ? 4096 2022-04-14 10:19 .

drwxr-xr-x? 21 root? ? root? ? ? 4096 2022-04-11 12:31 ..

-rw-------? 1 root? ? root? ? ? ? 2 2022-04-14 10:16 .layout_version

drwx------? 2 root? ? root? ? ? 3488 2022-04-14 10:16 adb

drwxrwxr-x? 3 root? ? root? ? ? 3488 2022-04-14 10:16 aee_exp

drwxrwxr-x? 2 system? system? ? 3488 2022-04-14 10:16 anr

drwxr-x---? 5 root? ? system? ? 3488 2022-04-14 10:16 apex

drwxrwx--x? 2 system? system? ? 3488 2022-04-14 10:16 app

drwx------? 2 root? ? root? ? ? 3488 2022-04-14 10:16 app-asec

drwxrwx--x? 2 system? system? ? 3488 2022-04-14 10:16 app-ephemeral

drwxrwx--x? 2 system? system? ? 3488 2022-04-14 10:16 app-lib

drwxrwx--x? 2 system? system? ? 3488 2022-04-14 10:16 app-private

drwxr-x---? 2 system? system? ? 3488 2022-04-14 10:16 app-staging

drwx------? 4 system? system? ? 3488 2022-04-14 10:19 backup

drwxr-xr-x? 2 shell? ? shell? ? 3488 2022-04-14 10:16 bootchart

drwxrwx---? 5 system? cache? ? 3488 2022-04-14 10:16 cache

drwxrwxr-x? 3 system? system? ? 3488 2022-04-14 10:16 connsyslog

drwxrwxr-x? 2 system? system? ? 3488 2022-04-14 10:16 core

drwxrwx--x? 3 root? ? root? ? ? 3488 2022-04-14 10:16 dalvik-cache

drwxrwx--x 156 system? system? 20480 2022-04-14 10:19 data

drwxrwx---? 3 shell? ? log? ? ? 3488 2022-04-14 10:16 debuglogger

drwxrwx---? 3 drm? ? ? drm? ? ? 3488 2022-04-14 10:19 drm

drwxrwxr-x? 2 system? system? ? 3488 2022-04-14 10:19 dumpsys

drwx------? 3 system? system? ? 3488 2022-04-14 10:18 duraspeed

drwx------? 3 root? ? root? ? ? 3488 2022-04-14 10:16 gsi

drwxr-x--x? 4 root? ? root? ? ? 3488 2022-04-14 10:16 local

drwxr-xr-x? 2 system? system? ? 3488 2022-04-14 10:20 log_temp

drwxrwx---? 2 root? ? root? ? ? 3488 2022-04-14 10:16 lost+found

drwxrwxr-x? 3 system? system? ? 3488 2022-04-14 10:17 mdlog

drwxrwx---? 3 media_rw media_rw? 3488 2022-04-14 10:19 media

drwxrwx---? 2 mediadrm mediadrm? 3488 2022-04-14 10:16 mediadrm

drwxrwx--t? 47 system? misc? ? ? 3488 2022-04-14 10:16 misc

drwxrwx--t? 3 system? misc? ? ? 3488 2022-04-14 10:19 misc_ce

drwxrwx--t? 3 system? misc? ? ? 3488 2022-04-14 10:16 misc_de

drwxrwx---? 3 nfc? ? ? nfc? ? ? 3488 2022-04-14 10:16 nfc

drwxrwx--x? 2 root? ? root? ? ? 3488 2022-04-14 10:16 ota

drwxrwx---? 2 system? cache? ? 3488 2022-04-14 10:16 ota_package

drwx------? 2 system? system? ? 3488 2022-04-14 10:19 per_boot

drwxrwxr-x? 2 system? system? ? 3488 2022-04-14 10:16 preloads

drwx------? 2 root? ? root? ? ? 3488 2022-04-14 10:20 property

drwxrwxr-x? 2 shell? ? system? ? 3488 2022-04-14 10:16 ramdump

drwxrwx--x? 2 system? system? ? 8192 2022-04-14 10:17 resource-cache

drwx------? 2 system? system? ? 3488 2022-04-14 10:17 rollback

drwx------? 2 system? system? ? 3488 2022-04-14 10:17 rollback-observer

drwxrwxr-x? 2 system? system? ? 3488 2022-04-14 10:16 server_configurable_flags

drwx------? 2 system? system? ? 3488 2022-04-14 10:16 ss

drwxrwxr-x? 20 system? system? ? 3488 2022-04-14 10:20 system

drwxrwx---? 3 system? system? ? 3488 2022-04-14 10:19 system_ce

drwxrwx---? 4 system? system? ? 3488 2022-04-14 10:16 system_de

drwxrwx--x? 2 system? system? ? 3488 2022-04-14 10:16 tombstones

drwx------? 3 root? ? root? ? ? 3488 2022-04-14 10:16 unencrypted

drwx--x--x? 2 system? system? ? 3488 2022-04-14 10:16 user

drwx--x--x? 3 system? system? ? 3488 2022-04-14 10:16 user_de

drwxrwx--x? 25 root? ? root? ? ? 3488 2022-04-14 10:16 vendor

drwxrwx--x? 3 root? ? root? ? ? 3488 2022-04-14 10:19 vendor_ce

drwxrwx--x? 4 root? ? root? ? ? 3488 2022-04-14 10:16 vendor_de

console:/data #

console:/data #

console:/data # sc

schedtest? ? ? screencap? ? ? screenrecord

console:/data # scr? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

screencap? ? ? screenrecord

console:/data # screencap 01.png? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

console:/data #

console:/data #

console:/data # getprop qemu.hw.mainkeys

1

console:/data #

console:/data # setprop qemu.hw.mainkeys 0

console:/data #

console:/data #

console:/data # getprop qemu.hw.mainkeys? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

0

console:/data #

console:/data # stop

console:/data #

console:/data # start

console:/data #

console:/data #

console:/data # input keyevent 82

console:/data #

console:/data # sc

schedtest? ? ? screencap? ? ? screenrecord

console:/data # scr? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

screencap? ? ? screenrecord

console:/data # screencap 11-key.png? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

console:/data #




[2]、修改config.xml文件

設(shè)置config_showNavigationBar為true就可以打開系統(tǒng)的虛擬鍵

framework/base/core/res/res/values/config.xml

<!-- Whether a software navigation bar should be shown. NOTE: in the future this may be

? ? autodetected from the Configuration. -->

<bool name="config_showNavigationBar">true</bool>

<!--<bool name="config_supportSystemNavigationKeys">false</bool>-->

Z:\mt6739_android10\frameworks\base\core\res\res\values\config.xml

? ? <!-- Whether a software navigation bar should be shown. NOTE: in the future this may be

? ? ? ? autodetected from the Configuration. -->

? ? <bool name="config_showNavigationBar">false</bool>

修改為：

? ? <!-- Whether a software navigation bar should be shown. NOTE: in the future this may be

? ? ? ? autodetected from the Configuration. -->

? ? <bool name="config_showNavigationBar">true</bool>



一般這種config 文件都會(huì)有overlay文件，所以也需要修改對(duì)應(yīng)的device下的overlay文件

device\qcom\msm8953_64\overlay\frameworks\base\core\res\res\values\config.xml

<!-- Whether a software navigation bar should be shown. NOTE: in the future this may be

? ? autodetected from the Configuration. -->

<bool name="config_showNavigationBar">true</bool>

<!--<bool name="config_supportSystemNavigationKeys">false</bool>-->

Z:\mt6739_android10\device\mediatek\common\overlay\navbar\frameworks\base\core\res\res\values\config.xml

方法一：

在Z:\mt6739_android10\device\mediatek\目錄下：find . -name config.xml

之后在Ultraedit中先查找frameworks然后在查找overlay。

可以看見：config_showNavigationBar已經(jīng)為真了！

<!-- These resources are around just to allow their values to be customized

? ? for different hardware and product builds.? Do not translate. -->

<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">

? ? <!-- Whether a software navigation bar should be shown. NOTE: in the future this may be

? ? ? ? autodetected from the Configuration. -->

? ? <bool name="config_showNavigationBar">true</bool>

</resources>





方法二：

rootroot@rootroot-System-Product1:~/mt6739_android10/device$

rootroot@rootroot-System-Product1:~/mt6739_android10/device$ grep config_showNavigationBar . -R

./linaro/hikey/overlay/frameworks/base/core/res/res/values/config.xml:? ? <bool name="config_showNavigationBar">true</bool>

./linaro/poplar/overlay/frameworks/base/core/res/res/values/config.xml:? ? <bool name="config_showNavigationBar">true</bool>

grep: ./linaro/bootloader/edk2/EmulatorPkg/Unix/Host/X11IncludeHack: No such file or directory

./generic/armv7-a-neon/overlay/frameworks/base/core/res/res/values/config.xml:? ? <bool name="config_showNavigationBar">true</bool>

./generic/x86/overlay/frameworks/base/core/res/res/values/config.xml:? ? <bool name="config_showNavigationBar">true</bool>

./google/bonito/bonito/overlay/frameworks/base/core/res/res/values/config.xml:? ? <bool name="config_showNavigationBar">true</bool>

./google/bonito/sargo/overlay/frameworks/base/core/res/res/values/config.xml:? ? <bool name="config_showNavigationBar">true</bool>

./google/bonito/overlay/frameworks/base/core/res/res/values/config.xml:? ? <bool name="config_showNavigationBar">true</bool>

./google/marlin/overlay/frameworks/base/core/res/res/values/config.xml:? ? <bool name="config_showNavigationBar">true</bool>

./google/cuttlefish/vsoc_arm64/phone/overlay/frameworks/base/core/res/res/values/config.xml:? <bool name="config_showNavigationBar">true</bool>

./google/cuttlefish/vsoc_x86_64/phone/overlay/frameworks/base/core/res/res/values/config.xml:? <bool name="config_showNavigationBar">true</bool>

./google/cuttlefish/vsoc_x86/phone/overlay/frameworks/base/core/res/res/values/config.xml:? <bool name="config_showNavigationBar">true</bool>

./google/crosshatch/blueline/overlay/frameworks/base/core/res/res/values/config.xml:? ? <bool name="config_showNavigationBar">true</bool>

./google/crosshatch/crosshatch/overlay/frameworks/base/core/res/res/values/config.xml:? ? <bool name="config_showNavigationBar">true</bool>

./google/crosshatch/overlay/frameworks/base/core/res/res/values/config.xml:? ? <bool name="config_showNavigationBar">true</bool>

./google/wahoo/overlay/frameworks/base/core/res/res/values/config.xml:? ? <bool name="config_showNavigationBar">true</bool>

grep: ./ti/beagle_x15/hostcc/ld: No such file or directory

grep: ./ti/beagle_x15/hostcc/strings: No such file or directory

grep: ./ti/beagle_x15/hostcc/gcc: No such file or directory

grep: ./ti/beagle_x15/hostcc/g++: No such file or directory

grep: ./ti/beagle_x15/hostcc/ar: No such file or directory

grep: ./ti/beagle_x15/hostcc/ld.bfd: No such file or directory

grep: ./ti/beagle_x15/hostcc/cc: No such file or directory

./ti/beagle_x15/overlay/frameworks/base/core/res/res/values/config.xml:? ? <bool name="config_showNavigationBar">true</bool>

./mediatek/common/overlay/navbar/frameworks/base/core/res/res/values/config.xml:? ? <bool name="config_showNavigationBar">true</bool>

./mediatek/build/mcs/Q0.basic_hiddenapi-stub-flags.txt:Lcom/android/internal/R$bool;->config_showNavigationBar:I

./mediatek/system/common/overlay/navbar/frameworks/base/core/res/res/values/config.xml:? ? <bool name="config_showNavigationBar">true</bool>

rootroot@rootroot-System-Product1:~/mt6739_android10/device$

[3]、添加配置文件

添加qemu.hw.mainkeys=0，也就是修改 androdi系統(tǒng)的system/build.prop

device\qcom\msm8953_64\system.prop

qemu.hw.mainkeys=0

rootroot@rootroot-System-Product1:~/mt6739_android10/device$

rootroot@rootroot-System-Product1:~/mt6739_android10/device$ find . -name system.prop

./linaro/hikey/system.prop

./bird/bird_k39tv1_bsp_1g/system.prop

./google/marlin/system.prop

./google/wahoo/system.prop

./mediateksample/k50v1_64_bsp/system.prop

./mediateksample/k57pv1_1g_hdp_ago/system.prop

./mediateksample/k62v1_32_bsp_2g/system.prop

./mediateksample/k62mv1_32_bsp/system.prop

./mediateksample/k50sv1_64_bsp/system.prop

./mediateksample/k61v1_32_bsp_hdp/system.prop

./mediateksample/k39tv1_bsp_512/system.prop

./mediateksample/k61v1_hdp_ref_1g/system.prop

./mediateksample/k39tv1_bsp_1g/system.prop

./mediateksample/k63v2_64_bsp/system.prop

./mediateksample/k50sv1_bsp/system.prop

./mediateksample/k61v1_hdp_ref/system.prop

./mediateksample/k61v1_64_bsp/system.prop

./mediateksample/k62v1_64_bsp/system.prop

./mediateksample/k57pv1_dm_2g_hdp/system.prop

./mediateksample/k80_bsp/system.prop

./mediateksample/k57pv1_dm_64/system.prop

./mediateksample/k39tv1_64_bsp/system.prop

./mediateksample/k61v1_32_bsp_1g/system.prop

./mediateksample/k80hd_bsp_fwv_512m/system.prop

./mediateksample/k63v1us_64_bsp/system.prop

./mediateksample/k39tlc_bsp/system.prop

./mediateksample/k62v1_32_bsp/system.prop

./mediateksample/k39tv1_bsp/system.prop

./mediateksample/k50v1_bsp/system.prop

./agenew/AGN_8149D_S553E_E_MV3216_Q/system.prop

./agenew/AGN_7130D_S40285B_PEP_E_DS442_Q/system.prop

./agenew/AGN_9186D_S5080AE_E_DS883_Q/system.prop

./agenew/AGN_9186D_S40410_E_DS843_Q/system.prop

./agenew/AGN_7130D_S40411B_AM_DS883_V12_FTM/system.prop

./agenew/AGN_H180XO_D39_F_MV1616_Q/system.prop

./agenew/AGN_8149D_S553H_E_MV168_Q/system.prop

./agenew/AGN_7130D_S40411B_AM_DS883_V12/system.prop

./agenew/AGN_H180XO_FTM/system.prop

./agenew/AGN_H188XO_D33A_FTM_MV3224/system.prop

./agenew/AGN_9186D_I950K_E_MV88/system.prop

./agenew/AGN_7130D_S40411A_E_DS843_Q/system.prop

./agenew/AGN_H188XOA_D33_C3AX_MV1616_Q_V01/system.prop

./agenew/AGN_H188XO_D33_FTM_MV3224/system.prop

./agenew/AGN_H188XOA_D33Y_C3AX_MV1616_Q_V01/system.prop

./agenew/AGN_H152XO_NFT10_ALL_P1P2P3_Q/system.prop

./agenew/AGN_7130D_B25_DS883S_V12_FTM/system.prop

./agenew/AGN_7130D_B1258_DS883_V12_FTM/system.prop

./agenew/AGN_H199XO_H600_MV1616_Q/system.prop

./agenew/AGN_H185WOPA_FTM_MV88_Q/system.prop

./agenew/AGN_L30D_K4080D_E_MV88_V06_QGO/system.prop

./agenew/AGN_H213XO_C90_E4BX_FTM_Q/system.prop

./agenew/AGN_H188XO_FTM_MV1616/system.prop

./agenew/AGN_L30D_B25_MV88_V06_FTM/system.prop

./agenew/AGN_H185WOPA_D36_F_MV88_Q/system.prop

./agenew/AGN_H180XO_FTM_MV1616_Q/system.prop

./agenew/AGN_H192XO_D31_MV1616_Q/system.prop

./agenew/AGN_H205XOA_C6000_E3AX_P1_ALL/system.prop

./agenew/AGN_H170XO_W102_MV1616_HDPLUS_FTM/system.prop

./agenew/AGN_H192XO_MT6762_FTM/system.prop

./agenew/AGN_7130D_S40411C_Q_DS883_V12/system.prop

./agenew/AGN_7130D_L5015C_AM_DS883_Q/system.prop

./agenew/AGN_9186D_S5080AE_E_DS883_Q_HD/system.prop

./agenew/AGN_8149D_E01A_E_MV168_Q/system.prop

./agenew/AGN_H213XO_C90_E4BX_ALL_Q/system.prop

./agenew/AGN_7130D_B1258_DS883S_V12_FTM/system.prop

./agenew/AGN_H188XO_D33_G6_MV1616/system.prop

./agenew/AGN_8149D_E01A_E_MV88_Q/system.prop

./agenew/AGN_H196XO_M110/system.prop

./agenew/AGN_8149WOF_I960AC_E_MV1616/system.prop

./agenew/AGN_H180XO_D36_F_MV1616_Q/system.prop

./agenew/AGN_7130D_V12_FTM/system.prop

./agenew/H163XO_M103_G6_MV1616_CN/system.prop

./agenew/AGN_9186D_I940C_E_MV88/system.prop

./agenew/AGN_H185WOPA_D37_F_MV88_Q/system.prop

./mediatek/system/common/system.prop

rootroot@rootroot-System-Product1:~/mt6739_android10/device$

Z:\mt6739_android10\device\bird\bird_k39tv1_bsp_1g\system.prop

# temporary enables NAV bar (soft keys)

qemu.hw.mainkeys=0



我表示我已經(jīng)【崩潰了】，參考資料走完了一遍，但是導(dǎo)航欄還是沒有出現(xiàn)！

本帖是msm8953/驍龍625平臺(tái)的，MT6739的android10只能用來參考！

baidu的時(shí)候，有帖子說android10下，google已經(jīng)拿掉導(dǎo)航欄了！

不死心，死馬當(dāng)活馬醫(yī)！于是：

rootroot@rootroot-System-Product1:~/mt6739_android10$

rootroot@rootroot-System-Product1:~/mt6739_android10$ grep qemu.hw.mainkeys . -R

./bird/device/common.mk:? ? PRODUCT_PROPERTY_OVERRIDES += qemu.hw.mainkeys=1

grep: ./external/e2fsprogs/config/ltmain.sh: No such file or directory

grep: ./external/libcxx/test/std/input.output/filesystems/Inputs/static_test_env/bad_symlink: No such file or directory

grep: ./external/kmod/testsuite/rootfs-pristine/test-loaded/sys/module/btusb/drivers/usb:btusb: No such file or directory

grep: ./external/bcc/tests/lua/spec: No such file or directory

grep: ./external/python/mock/docs/changelog.txt: No such file or directory

grep: ./packages/apps/Calendar/libs/android-support-v4.jar: No such file or directory

./device/linaro/hikey/device-common.mk:PRODUCT_PROPERTY_OVERRIDES += qemu.hw.mainkeys=0

grep: ./device/linaro/bootloader/edk2/EmulatorPkg/Unix/Host/X11IncludeHack: No such file or directory

./device/generic/goldfish/qemu-props/qemu-props.c:? ? ? ? } else if (strcmp(temp, "qemu.hw.mainkeys") == 0 ) {

./device/bird/bird_k39tv1_bsp_1g/system.prop:qemu.hw.mainkeys=0

./device/google/marlin/system.prop:qemu.hw.mainkeys=0

./device/common/common.mk:? ? PRODUCT_PROPERTY_OVERRIDES += qemu.hw.mainkeys=1

grep: ./device/ti/beagle_x15/hostcc/ld: No such file or directory

grep: ./device/ti/beagle_x15/hostcc/strings: No such file or directory

grep: ./device/ti/beagle_x15/hostcc/gcc: No such file or directory

grep: ./device/ti/beagle_x15/hostcc/g++: No such file or directory

grep: ./device/ti/beagle_x15/hostcc/ar: No such file or directory

grep: ./device/ti/beagle_x15/hostcc/ld.bfd: No such file or directory

grep: ./device/ti/beagle_x15/hostcc/cc: No such file or directory

./device/mediateksample/k50v1_64_bsp/system.prop:qemu.hw.mainkeys=0

./device/mediateksample/k57pv1_1g_hdp_ago/system.prop:qemu.hw.mainkeys=0

Z:\mt6739_android10\bird\device\common.mk

#AGENEW add by nimengfei for removing virtual buttons @20200103 begin

ifeq ($(strip $(AGN_REMOVE_VIRTUAL_KEY)), yes)

? ? PRODUCT_PROPERTY_OVERRIDES += qemu.hw.mainkeys=1

endif

#AGENEW add by nimengfei for removing virtual buttons @20200103 end

修改為：

#AGENEW add by nimengfei for removing virtual buttons @20200103 begin

ifeq ($(strip $(AGN_REMOVE_VIRTUAL_KEY)), yes)

? ? PRODUCT_PROPERTY_OVERRIDES += qemu.hw.mainkeys=0

endif

#AGENEW add by nimengfei for removing virtual buttons @20200103 end

Z:\mt6739_android10\device\common\common.mk

#AGENEW add by nimengfei for removing virtual buttons @20200103 begin

ifeq ($(strip $(AGN_REMOVE_VIRTUAL_KEY)), yes)

? ? PRODUCT_PROPERTY_OVERRIDES += qemu.hw.mainkeys=1

endif

#AGENEW add by nimengfei for removing virtual buttons @20200103 end

修改為：

#AGENEW add by nimengfei for removing virtual buttons @20200103 begin

ifeq ($(strip $(AGN_REMOVE_VIRTUAL_KEY)), yes)

? ? PRODUCT_PROPERTY_OVERRIDES += qemu.hw.mainkeys=0

endif

#AGENEW add by nimengfei for removing virtual buttons @20200103 end

【解決問題了！】




參考資料：

https://blog.csdn.net/weixin_44008788/article/details/108404794

Android系統(tǒng)開啟導(dǎo)航欄NavigationBar(虛擬按鍵)

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