如何在android espresso中访问recycler视图的子视图？

我正在为Recycler view编写浓缩咖啡单元测试。 在“回收器”视图中，我有可单击的文本视图。我想在浓缩咖啡测试中的文本视图上执行单击事件。那么如何访问该文本视图呢？

您可以使用

包括格拉德尔：

dependencies {
    androidTestCompile 'com.android.support.test:testing-support-lib:0.1'
    androidTestCompile 'com.android.support.test.espresso:espresso-core:2.0'
    androidTestCompile 'com.android.support.test.espresso:espresso-contrib:2.0'
}

你可以用

包括格拉德尔：

dependencies {
    androidTestCompile 'com.android.support.test:testing-support-lib:0.1'
    androidTestCompile 'com.android.support.test.espresso:espresso-core:2.0'
    androidTestCompile 'com.android.support.test.espresso:espresso-contrib:2.0'
}

---

试试这个，我也测试过同样的

onView(withRecyclerView(R.id.recyclerView)
      .atPositionOnView(position, R.id.childView))
      .perform(click());

方法调用

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

RecycleServiceWMatcher

import android.content.res.Resources;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.hamcrest.TypeSafeMatcher;

public class RecyclerViewMatcher {

private final int recyclerViewId;

public RecyclerViewMatcher(int recyclerViewId) {
    this.recyclerViewId = recyclerViewId;
}

public Matcher<View> atPosition(final int position) {
    return atPositionOnView(position, -1);
}

public Matcher<View> atPositionOnView(final int position, final int targetViewId) {
    return new TypeSafeMatcher<View>() {
        Resources resources = null;
        View childView;

        public void describeTo(Description description) {
            String idDescription = Integer.toString(recyclerViewId);
            if (this.resources != null) {
                try {
                    idDescription = this.resources.getResourceName(recyclerViewId);
                } catch (Resources.NotFoundException var4) {
                    idDescription = String.format("%s (resource name not found)", recyclerViewId);
                }
            }
            description.appendText("with id: " + idDescription);
        }

        public boolean matchesSafely(View view) {
            this.resources = view.getResources();
            if (childView == null) {
                RecyclerView recyclerView = (RecyclerView) view.getRootView().findViewById(recyclerViewId);

                if (recyclerView != null && recyclerView.getId() == recyclerViewId) {
                    RecyclerView.ViewHolder viewHolder = recyclerView.findViewHolderForAdapterPosition(position);

                    if (viewHolder != null) {
                        childView = viewHolder.itemView;
                    }
                } else {
                    return false;
                }
            }
            if (targetViewId == -1) {
                return view == childView;
            } else {
                View targetView = childView.findViewById(targetViewId);
                return view == targetView;
            }
        }
    };
}

导入android.content.res.Resources；
导入android.support.v7.widget.RecyclerView；
导入android.view.view；
导入org.hamcrest.Description；
导入org.hamcrest.Matcher；
导入org.hamcrest.TypeSafeMatcher；
公共类RecycleServiceWatcher{
私人最终int回收服务ID；
公共RecycleServiceWatcher（int RecycleServiceWid）{
this.recyclerivewid=recyclerivewid；
}
公共匹配器位置（最终整数位置）{
返回位置视图（位置-1）；
}
公共匹配器ATPOSITIONVIEW（最终int位置，最终int targetViewId）{
返回新的TypeSafeMatcher（）{
Resources=null；
查看儿童视图；
公共无效说明（说明）{
字符串idDescription=Integer.toString（RecycleServiceWid）；
if（this.resources！=null）{
试一试{
idDescription=this.resources.getResourceName（RecycleServiceWid）；
}catch（Resources.NotFoundException var4）{
idDescription=String.format（“%s（未找到资源名称）”，RecycleServiceWid）；
}
}
description.appendText（“id:+idDescription”）；
}
公共布尔匹配安全（视图）{
this.resources=view.getResources（）；
if（childView==null）{
RecycleView RecycleView=（RecycleView）view.getRootView（）.findViewById（RecycleWebId）；
if（recyclerView！=null&&recyclerView.getId（）==recyclerViewId）{
RecyclerView.ViewHolder ViewHolder=RecyclerView.FindViewHolder for AdapterPosition（位置）；
if（viewHolder！=null）{
childView=viewHolder.itemView；
}
}否则{
返回false；
}
}
如果（targetViewId==-1）{
返回视图==子视图；
}否则{
View targetView=childView.findViewById（targetViewId）；
返回视图==目标视图；
}
}
};
}

试试这个，我也做过同样的测试

onView(withRecyclerView(R.id.recyclerView)
      .atPositionOnView(position, R.id.childView))
      .perform(click());

方法调用

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

RecycleServiceWMatcher

import android.content.res.Resources;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.hamcrest.TypeSafeMatcher;

public class RecyclerViewMatcher {

private final int recyclerViewId;

public RecyclerViewMatcher(int recyclerViewId) {
    this.recyclerViewId = recyclerViewId;
}

public Matcher<View> atPosition(final int position) {
    return atPositionOnView(position, -1);
}

public Matcher<View> atPositionOnView(final int position, final int targetViewId) {
    return new TypeSafeMatcher<View>() {
        Resources resources = null;
        View childView;

        public void describeTo(Description description) {
            String idDescription = Integer.toString(recyclerViewId);
            if (this.resources != null) {
                try {
                    idDescription = this.resources.getResourceName(recyclerViewId);
                } catch (Resources.NotFoundException var4) {
                    idDescription = String.format("%s (resource name not found)", recyclerViewId);
                }
            }
            description.appendText("with id: " + idDescription);
        }

        public boolean matchesSafely(View view) {
            this.resources = view.getResources();
            if (childView == null) {
                RecyclerView recyclerView = (RecyclerView) view.getRootView().findViewById(recyclerViewId);

                if (recyclerView != null && recyclerView.getId() == recyclerViewId) {
                    RecyclerView.ViewHolder viewHolder = recyclerView.findViewHolderForAdapterPosition(position);

                    if (viewHolder != null) {
                        childView = viewHolder.itemView;
                    }
                } else {
                    return false;
                }
            }
            if (targetViewId == -1) {
                return view == childView;
            } else {
                View targetView = childView.findViewById(targetViewId);
                return view == targetView;
            }
        }
    };
}

导入android.content.res.Resources；
导入android.support.v7.widget.RecyclerView；
导入android.view.view；
导入org.hamcrest.Description；
导入org.hamcrest.Matcher；
导入org.hamcrest.TypeSafeMatcher；
公共类RecycleServiceWatcher{
私人最终int回收服务ID；
公共RecycleServiceWatcher（int RecycleServiceWid）{
this.recyclerivewid=recyclerivewid；
}
公共匹配器位置（最终整数位置）{
返回位置视图（位置-1）；
}
公共匹配器ATPOSITIONVIEW（最终int位置，最终int targetViewId）{
返回新的TypeSafeMatcher（）{
Resources=null；
查看儿童视图；
公共无效说明（说明）{
字符串idDescription=Integer.toString（RecycleServiceWid）；
if（this.resources！=null）{
试一试{
idDescription=this.resources.getResourceName（RecycleServiceWid）；
}catch（Resources.NotFoundException var4）{
idDescription=String.format（“%s（未找到资源名称）”，RecycleServiceWid）；
}
}
description.appendText（“id:+idDescription”）；
}
公共布尔匹配安全（视图）{
this.resources=view.getResources（）；
if（childView==null）{
RecycleView RecycleView=（RecycleView）view.getRootView（）.findViewById（RecycleWebId）；
if（recyclerView！=null&&recyclerView.getId（）==recyclerViewId）{
RecyclerView.ViewHolder ViewHolder=RecyclerView.FindViewHolder for AdapterPosition（位置）；
if（viewHolder！=null）{
childView=viewHolder.itemView；
}
}否则{
返回false；
}
}
如果（targetViewId==-1）{
返回视图==子视图；
}否则{
View targetView=childView.findViewById（targetViewId）；
返回视图==目标视图；
}
}
};
}

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