RecylerView不滾動到android系統測試用例最後文本與咖啡

Question

RecylerView包含一個TextView在last.I「一些內容」我不能我recylerview滾動到最後一個文本是shown.I都想盡命中和試驗方法發現給我，但無法找到任何解決方案。我曾嘗試

代碼： -

1. onView(withId(R.id.recylerview)).perform(scrollToPosition(13)); 
//my last text view in recyler view is at position 13 
2.onView(withText("Some content")).perform(scrollTo(), click()); 
//my text is "Some content" 

我的問題是，作爲回收視圖包含所有13個items.As我已經設置文本編程值相同的文本視圖，我不能ID搜索。

所以這個代碼不能申請： -

onView(withId(R.id.txtview)).perform(scrollTo(), click()); 

EspressoCode

UiObject2 button9 = device.findObject(By.text("S 5 [None]")); 
     button9.click(); 
     try { 
      UiObject srText = new UiObject(new UiSelector().resourceId("com.example.project:id/radio")); 
      sText.click(); 

     }catch(Exception e){ 

     } 
     onView(withRecyclerView(R.id.recylerview).atPosition(13)) 
       .check(matches((hasDescendant(withText("Some content"))))); 

     UiObject2 button10 = device.findObject(By.text("S 6 [None]")); 
     button10.click(); 
     try { 
      UiObject sensorText = new UiObject(new UiSelector().resourceId("com.example.project:id/radio")); 
      sensorText.click(); 

     }catch(Exception e){ 

     } 

Answer 1

您可以添加this RecyclerViewMatcher文件到您的測試。那麼這種方法添加到您的咖啡的測試，所以你可以用它

public static RecyclerViewMatcher withRecyclerView(final int recyclerViewId) { 
     return new RecyclerViewMatcher(recyclerViewId); 
    } 

終於做

onView(withRecyclerView(R.id.recyclerview).atPosition(13)) 
.check(matches((hasDescendant(withText("Some content"))))); 

所以，你的咖啡文件看起來是這樣的..

public class YouEspressoTest { 

    public static RecyclerViewMatcher withRecyclerView(final int recyclerViewId) { 
     return new RecyclerViewMatcher(recyclerViewId); 
    } 

    @Before 
    public void setUp() { 
     ... 
    } 

    @Test 
    public void testRecyclerView() { 
     ... 
     onView(withRecyclerView(R.id.recyclerview).atPosition(13)) 
       .check(matches((hasDescendant(withText("Some content"))))); 
     ... 
    } 
}