public void callMethod()
{
try {
//获取环境变量
Context ctx = createPackageContext("com.forhope.zhang", Context.CONTEXT_IGNORE_SECURITY|CONTEXT_INCLUDE_CODE);
//载入这个类
Class clazz = ctx.getClassLoader().loadClass("com.forhope.zhang.MainActivity");
//新建一个实例
Object owner = clazz.newInstance();
//调用方法，传入参数，得到结果
clazz.getMethod("print", String.class).invoke(owner, "fuck");
} catch (NameNotFoundException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (SecurityException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}
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