SystemProperties.set permission denied
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在Settings模块下执行
SystemProperties.set("persist.radio.test", "sharktest");
提示permission denied
查看system/core/init/property_service.c { "persist.radio", AID_RADIO, 0 },
查看Settings的权限是android:sharedUserId="android.uid.system" 也就是AID_SYSTEM
因此在settings模块,只具有AID_SYSTEM (1000)的级别,不能去设置AID_RADIO(1001)的prop
为此如果要成功设置AID_RADIO,设置者必须具备如下的属性
在android:sharedUserId="android.uid.phone"
0 0
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