Android Studio Ui测试在启用Java8时出错

Question

java.lang.RuntimeExceptionCause: java.lang.RuntimeException

import static androidx.test.espresso.action.ViewActions.click;
import static androidx.test.espresso.assertion.ViewAssertions.matches;
import static androidx.test.espresso.matcher.ViewMatchers.withId;
import static androidx.test.espresso.matcher.ViewMatchers.withText;

import androidx.test.espresso.Espresso;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import androidx.test.filters.LargeTest;
import androidx.test.rule.ActivityTestRule;
import com.dubizzle.workshopsample.R;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;


@RunWith(AndroidJUnit4.class)
@LargeTest
public class MainActivityUiTest {

  @Rule
  public ActivityTestRule<MainActivity> mActivityRule
      = new ActivityTestRule<>(MainActivity.class);

  @Test
  public void testShareButtonClickedUi() {
    Espresso.onView(withId(R.id.txtStatus))
        .check(matches(withText("Hello World!")));

    Espresso.onView(withId(R.id.btnShare)).perform(click());

    Espresso.onView(withId(R.id.txtStatus))
        .check(matches(withText("onShareButtonClicked")));
  }
}

Answer 1

根据这个：使用Java8语言的特性你只能有一个

Java8语言特性的子集，因平台版本而异。

您可以尝试提升minSdkVersion，看看它是否有用（24或更高）。