SystemPropertiesis a hidden class that is only available for platform level code. You can try to access it through reflection, but this is not recommended.
The Android class is SystemPropertieseasily confused with the old Java style to create properties, namely with java.lang.System.getProperty(). Please note that these are two completely different systems. An important difference is that the Java mechanism only works inside this process, while Android SystemPropertiesworks between processes.
, API Java Android Android SystemProperties, SystemProperties ,
adb shell getprop