是否可以使用Butterknife在android中的espresso Test clases中注入视图？

Question

是否可以使用Butterknife注入测试类的视图？视图被注入到由MainActivity类创建和提交的片段中.

这是我的测试类的代码:

public class MainActivityTest extends ActivityInstrumentationTestCase2<MainActivity> {

private MainActivity mMainActivity;
private Button learnButton;
private Button teachButton;

@SuppressWarnings( "deprecation" )
public MainActivityTest() {
    super("com.example.application.app", MainActivity.class);
}

protected void setUp() throws Exception {
    super.setUp();

    mMainActivity = getActivity();
    learnButton = (Button) mMainActivity.findViewById(R.id.buttonLearn);
    teachButton = (Button) mMainActivity.findViewById(R.id.buttonTeach);
}

但是我使用Butterknife在我的片段中注入视图:

public class ChooseActionFragment extends Fragment {

@InjectView(R.id.buttonTeach) Button buttonTeach;
@InjectView(R.id.buttonLearn) Button buttonLearn;

public ChooseActionFragment() { }

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_main, container, false);
    ButterKnife.inject(this, rootView);
    return view;
}

我想知道如何在我的测试中使用Butterknife来减少我的样板视图代码,就像我在生产代码中所做的那样.

Answer 1

是的你可以。

供参考：http://jakewharton.github.io/butterknife/javadoc/butterknife/ButterKnife.html

在测试依赖项中包含 ButterKnife。

ButterKnife.inject() 的第一个参数是“目标”，即带有 @InjectView 注释字段的类的实例，第二个参数是包含要注入的视图的 Activity、View 或 Dialog。

像这样的东西：

public class MainActivityTest extends ActivityInstrumentationTestCase2<MainActivity> {

private MainActivity mMainActivity;
@InjectView(R.id.buttonLearn)
Button learnButton;

@InjectView(R.id.buttonTeach)
Button teachButton;

@SuppressWarnings( "deprecation" )
public MainActivityTest() {
    super("com.example.application.app", MainActivity.class);
}

protected void setUp() throws Exception {
 super.setUp();

  mMainActivity = getActivity();
  ButterKnife.inject(this, mMainActivity );
}