在系统中预置一个 wifi 的 ssid 和 pwd，这样在系统烧写启动完成后开机打开 wifi 就能
自动连接指定 ssid。
1、获取 WifiConfigStore.xml
R 版本此文件路径位于
/data/misc/apexdata/com.android.wifi/WifiConfigStore.xml
userdebug 版本下先连接好指定 ssid，将 WifiConfigStore.xml copy 出来，大致长这样。
<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
<WifiConfigStoreData>
<int name="Version" value="3" />
<NetworkList>
<Network>
<WifiConfiguration>
<string name="ConfigKey">"kotlin555"WPA_PSK</string>
<string name="SSID">"kotlin555"</string>
<string name="PreSharedKey">"123456789"</string>
<null name="WEPKeys" />
<int name="WEPTxKeyIndex" value="0" />
<boolean name="HiddenSSID" value="false" />
<boolean name="RequirePMF" value="false" />
<byte-array name="AllowedKeyMgmt" num="1">02</byte-array>
<byte-array name="AllowedProtocols" num="1">03</byte-array>
<byte-array name="AllowedAuthAlgos" num="0"></byte-array>
<byte-array name="AllowedGroupCiphers" num="1">2f</byte-array>
<byte-array name="AllowedPairwiseCiphers" num="1">0e</byte-array>
<byte-array name="AllowedGroupMgmtCiphers" num="1">04</byte-array>
<byte-array name="AllowedSuiteBCiphers" num="0"></byte-array>
<boolean name="Shared" value="true" />
<int name="WapiPskType" value="0" />
<null name="WapiPsk" />
<boolean name="AutoJoinEnabled" value="true" />
<boolean name="Trusted" value="true" />
<null name="BSSID" />
<int name="Status" value="2" />
<null name="FQDN" />
<null name="ProviderFriendlyName" />
<null name="LinkedNetworksList" />
<null name="DefaultGwMacAddress" />
<boolean name="ValidatedInternetAccess" value="true" />
<boolean name="NoInternetAccessExpected" value="false" />
<boolean name="MeteredHint" value="false" />
<int name="MeteredOverride" value="0" />
<boolean name="UseExternalScores" value="false" />
<int name="CreatorUid" value="1000" />
<string name="CreatorName">android.uid.system:1000</string>
<int name="LastUpdateUid" value="1000" />
<string name="LastUpdateName">android.uid.system:1000</string>
<int name="LastConnectUid" value="1000" />
<boolean name="IsLegacyPasspointConfig" value="false" />
<long-array name="RoamingConsortiumOIs" num="0" />
<string name="RandomizedMacAddress">52:b3:02:9e:ca:e4</string>
<int name="MacRandomizationSetting" value="0" />
<int name="CarrierId" value="-1" />
<boolean name="IsMostRecentlyConnected" value="true" />
</WifiConfiguration>
<NetworkStatus>
<string name="SelectionStatus">NETWORK_SELECTION_ENABLED</string>
<string name="DisableReason">NETWORK_SELECTION_ENABLE</string>
<null name="ConnectChoice" />
<boolean name="HasEverConnected" value="true" />
</NetworkStatus>
<IpConfiguration>
<string name="IpAssignment">DHCP</string>
<string name="ProxySettings">NONE</string>
</IpConfiguration>
</Network>
</NetworkList>
<MacAddressMap>
<map name="MacMapEntry" />
</MacAddressMap>
<Settings>
<map name="Values">
<boolean name="wifi_p2p_pending_factory_reset" value="false" />
<boolean name="wifi_scan_throttle_enabled" value="true" />
<null name="wifi_p2p_device_name" />
<boolean name="wifi_scan_always_enabled" value="false" />
<boolean name="wifi_verbose_logging_enabled" value="false" />
</map>
</Settings>
<PasspointConfigData>
<long name="ProviderIndex" value="0" />
</PasspointConfigData>
</WifiConfigStoreData>
2、将 WifiConfigStore 放置到指定路径下
方式一、卒
PRODUCT_COPY_FILES +=
vendor/mediatek/WifiConfigStore.xml:data/misc/apexdata/com.android.wifi/WifiConfigStore.xml
烧写后开不了机了，data 分区下不允许放置其它东西
方式二、卒 先将 WifiConfigStore.xml 扔到 /system/etc/ 随便目录都行， 用 java 代码 read /system/etc/WifiConfigStore.xml 写入 /data/misc/apexdata/com.android.wifi/WifiConfigStore.xml
权限不够，加权限加到地老天荒
方式三、可
加在 init.rc 中去 copy 这个文件，init.rc 自带 root 权限
build\make\target\product\handheld_system.mk
PRODUCT_COPY_FILES += \
vendor/mediatek/WifiConfigStore.xml:system/etc/WifiConfigStore.xml
system\core\rootdir\init.rc
on property:spc.provisioned=1
copy /system/etc/WifiConfigStore.xml /data/misc/apexdata/com.android.wifi/WifiConfigStore.xml
找地方触发 spc.provisioned 只能执行一次，不能每次启动都去 copy, 这样会覆盖用户自己保存的其它 wifi 信息
加在 provision
还有大佬提供的另外一种思路，我没具体验证，这里也贴一下
Android 8.0内置wifi Android系统WIFI显示已保存但不会自动重连 RK3568 Android 11 ------已保存的WiFi，不自动连接
