QtAndroidExtras露
The module is only available on Android.
The QtAndroidExtras module contains additional classes that are specific to Android.
Only a sub-set of the QAndroidJniObject class
is implemented. In particular only the
callMethod() and
callStaticMethod() methods
can be called to invoke a method on a Java class. In addition only Java
methods that take no arguments and return an int may be invoked. This
restricts the usefulness to Java classes where you have control of the Java API
and can design it to take account of these limitations.
