As a novice, I will practice network data request analysis these days. However, no data can be obtained by testing on the real machine. (Virtual machine can).
Then, I know it is the need to increase network access permissions for Android 9.0 and above. . . I don't know what to say, anyway, just adding an Internet will definitely not work.
So I checked a lot of methods, without exception, add an xml file, list configuration, how can a pig like me learn it? It’s too much trouble.
at last! ! ! Found the simple one. Add this code in the manifest file:
android:usesCleartextTraffic="true"
As shown in the figure: the 
real machine test is perfectly solved. It's very nice hahahahaha, learned learned