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涉及到framwork的修改一般都在QSSI文件夹下。

1、Android设备，发现耳机插入了设备，但是设备statusbar并没有显示耳机插入的状态。

frameworks/base/packages/SystemUI/res/values/config.xml

下修改：

 <string-array name="config_statusBarIconsToExclude" translatable="false"><item>@*android:string/status_bar_rotate</item>
-        <item>@*android:string/status_bar_headset</item>
+        <!-- <item>@*android:string/status_bar_headset</item> --></string-array>

2、连接Wifi，WiFi连接成功却显示感叹号或问号，不能使用。实际访问网络是可以的。

/packages/modules/NetworkStack/res/values/config.xml

每当Wifi连接后，系统会通过访问一个网站来确定网络的联通性。Google默认用的是https://www.google.com/generate_204 这个网站，在国外可以访问，国内不一定可以访问。需要替换成 一个国内和国外都可以访问的网站即可。

<!-- <string name="default_captive_portal_http_url" translatable="false">http://connectivitycheck.gstatic.com/generate_204</string> --><string name="default_captive_portal_http_url" translatable="false">http://connectivitycheck.platform.hicloud.com/generate_204</string><!-- HTTPS URL for network validation, to use for confirming internet connectivity. --><!-- default_captive_portal_https_url is not configured as overlayable soOEMs that wish to change captive_portal_https_url configuration mustdo so via configuring runtime resource overlay toconfig_captive_portal_https_url and *NOT* by changing or overlayingthis resource. It will break if the enforcement of overlayable starts.--><!-- <string name="default_captive_portal_https_url" translatable="false">https://www.google.com/generate_204</string> --><string name="default_captive_portal_https_url" translatable="false">https://connectivitycheck.platform.hicloud.com/generate_204</string><!-- List of fallback URLs to use for detecting captive portals. --><!-- default_captive_portal_fallback_urls is not configured as overlayableso OEMs that wish to change captive_portal_fallback_urls configurationmust do so via configuring runtime resource overlay toconfig_captive_portal_fallback_urls and *NOT* by changing or overlayingthis resource. It will break if the enforcement of overlayable starts.--><string-array name="default_captive_portal_fallback_urls" translatable="false"><item>http://connectivitycheck.platform.hicloud.com/generate_204</item><item>http://www.google.com/gen_204</item><item>http://play.googleapis.com/generate_204</item></string-array>

3、如何添加GMS包。一般GMS包在partner_gms 文件夹下。

将 partner_gms 文件夹全部复制到vendor目录下。

在 QSS/device/qcom/qssi/qssi.mk文件上写一段命令：

$(call inherit-product, vendor/partner_gms/products/gms.mk)

4、修改默认的壁纸

/frameworks/base/core/res/res/drawable-nodpi/default_wallpaper.jpeg

frameworks/base/core/res/res/drawable-sw600dp-nodpi/default_wallpaper.jpeg
frameworks/base/core/res/res/drawable-sw720dp-nodpi/default_wallpaper.jpeg

替换成你想要的壁纸即可。

5、如何内置apk

在packages/apps/ 下创建一个文件夹Thirdapp

路径：/packages/apps/Thirdapp/

在Thirdapp创建一个文件夹名为： appstore

路径：/packages/apps/Thirdapp/appstore

把需要安装的apk放在在该文件夹下。 apk 命名为  appstore.apk

路径：/packages/apps/Thirdapp/appstore/appstore.apk

在/packages/apps/Thirdapp/ 创建一个Android.mk文件。

LOCAL_PATH := $(my-dir)#ANIMATION_PATH := packages/apps/Thirdapp/BootAnimation
#MEDIA_OUTDIR := out/target/product/qssi/product/media
#$(shell mkdir -p out/target/product/qssi/product/media)
#$(shell cp -rf $(ANIMATION_PATH)/*.zip $(MEDIA_OUTDIR))include $(CLEAR_VARS)
LOCAL_MODULE := appstore
LOCAL_MODULE_CLASS := APPS
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX)
LOCAL_PRODUCT_MODULE := true
LOCAL_CERTIFICATE := PRESIGNED
LOCAL_SRC_FILES := appstore/appstore.apk
LOCAL_MODULE_PATH := $(PRODUCT_OUT)/system/app
include $(BUILD_PREBUILT)#/build/make/target/product/handheld_system.mk

在/build/make/target/product/handheld_system.mk的文件里的

PRODUCT_PACKAGES += \

后面加上

$(call inherit-product-if-exists, frameworks/base/data/keyboards/keyboards.mk)
$(call inherit-product-if-exists, frameworks/webview/chromium/chromium.mk)PRODUCT_PACKAGES += \BasicsDreams \BlockecdNumberProvider \Bluetooths \BluetoothsMidiServices \appstore \