问题
I am trying to secure webview from cleartext traffic. As mentioned in the documentation. I have to set android:usesCleartextTraffic as false to achieve this. But this works on API level 23 and above. My minimum sdk is 22. How can I make sure app doesn't crash or create any problem on device running below API level 23 ? Or how can I programmatically set that attribute value in the application tag in Manifest.xml ?
回答1:
As suggested in Android Developers Blogspot, you don’t have to set minSdkVersion or targetSdkVersion of your app to 23 (Android Marshmallow) to use android:usesCleartextTraffic. On older platforms, this attribute is simply ignored and thus has no effect.Check this out
Hope this solves your query.
来源：https://stackoverflow.com/questions/48555256/how-to-use-androidusescleartexttraffic-below-marshmallow-android