小编jua*_*njo的帖子

我想将自定义字体应用于我的应用程序的标题,该标题显示在ActionBar上.以前我没有使用任何支持库和这个解决方案:

int titleId = getResources().getIdentifier("action_bar_title", "id",
                "android");
TextView yourTextView = (TextView) findViewById(titleId);
yourTextView.setTypeface(face);

对我来说很好.但是现在我使用材质设计SupportActionBar,这会抛出NullPointerException.那么如何在使用AppCompat时更改ActionBar字体？

我试图测试当我执行HomePresenter类的方法"onCreate(IHomeView iHomeView)"时调用"setTabs()"."SetTabs()"是IHomeView中的接口方法.为了测试它,我使用mockito,但是当我调用homeView.setTabs()时,我得到一个illegalArgumentException

我把我的代码放在这里,很简单:

我的简单测试:

import junit.framework.Assert;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.RobolectricTestRunner;
import org.robolectric.annotation.Config;

import static org.fest.assertions.api.Assertions.assertThat;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.robolectric.util.FragmentTestUtil.startFragment;

@RunWith(RobolectricTestRunner.class) 
public class HomeFragmentTest {

    @Test
    public void testOnCreateHomePresenter() {
       IHomeView homeViewMock = mock(IHomeView.class);

       HomePresenter homePresenter = new HomePresenter();
       homePresenter.onCreate(homeViewMock);

       verify(homeViewMock, times(1)).setTabs();
     }
}

IHomeView.class

public interface IHomeView {

   public void setTabs();

}

HomePresenter.java

public class HomePresenter implements IHomePresenter {

private IHomeView mHomeView;

public void onCreate(IHomeView homeView) {
    mHomeView …