mvppoet-generateactivity.java

private void generateActivity() throws IOException {
        MethodSpec onCreate = MethodSpec.methodBuilder("onCreate")
                .addAnnotation(Override.class)
                .addModifiers(Modifier.PUBLIC)
                .returns(void.class)
                .addParameter(Bundle.class, "savedInstanceState")
                .addComment("TODO setContentView()")
                .addStatement("mPresenter = new $T()", getPresenterType())
                .addStatement("mPresenter.attachView(this)")
                .build();

        TypeSpec mvpActivity = TypeSpec.classBuilder(featureName + "Activity")
                .superclass(Activity.class)
                .addSuperinterface(getViewType())
                .addField(getPresenterType(), "mPresenter", Modifier.PRIVATE)
                .addMethod(onCreate)
                .build();

        JavaFile javaFile = JavaFile.builder(packageName + "." + featureName.toLowerCase(), mvpActivity)
                .build();

        File file = new File("app/src/main/java");
        javaFile.writeTo(file);
}