android8.1系统应用在使用SystemProperties.set(String key, String value)时报java.lang.RuntimeException: failed to set system property错误，修改方式如下：（原文内容是：SystemProperties.set("persist.vendor.debug.camera.picture.flip", "1");）
修改内容：
diff --git a/prebuilts/api/26.0/private/property_contexts b/prebuilts/api/26.0/private/property_contexts
index 4c27b35..c596f04 100644 (file)
--- a/prebuilts/api/26.0/private/property_contexts
+++ b/prebuilts/api/26.0/private/property_contexts
@@ -57,6 +57,7 @@ persist.sys.audit_safemode u:object_r:safemode_prop:s0
persist.service. u:object_r:system_prop:s0
persist.service.bdroid. u:object_r:bluetooth_prop:s0
persist.security. u:object_r:system_prop:s0
+persist.vendor. u:object_r:system_prop:s0
persist.vendor.overlay. u:object_r:overlay_prop:s0
ro.boot.vendor.overlay. u:object_r:overlay_prop:s0
ro.boottime. u:object_r:boottime_prop:s0
diff --git a/private/property_contexts b/private/property_contexts
index 8eb2f28..714da7a 100644 (file)
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -58,6 +58,7 @@ persist.sys.audit_safemode u:object_r:safemode_prop:s0
persist.service. u:object_r:system_prop:s0
persist.service.bdroid. u:object_r:bluetooth_prop:s0
persist.security. u:object_r:system_prop:s0
+persist.vendor. u:object_r:system_prop:s0
persist.vendor.overlay. u:object_r:overlay_prop:s0
ro.boot.vendor.overlay. u:object_r:overlay_prop:s0
ro.boottime. u:object_r:boottime_prop:s0