I am trying to access a button from a specific view. The same view is displayed 6 times. This is the code I am using.
public void testTimeConfig(){
onData(withDesc("description")).onChildView(withId(R.id.positive)).perform(click());
}
private static Matcher<Object> withDesc(String desc) {
return allOf(is(instanceOf(String.class)), is(desc));
}
When I run, I get an error:
Error performing 'load adapter data' on view 'is assignable from class: class android.widget.AdapterView'.
Is this the best way to access a child view? If so, how?
EDIT
This is the code I am trying to use now.
onView(allOf((withContentDescription("description")), hasSibling(withContentDescription("SettingsLayout")), hasSibling(withId(R.id.positive)))).perform(click());
and
onView(allOf((withContentDescription("description")), hasSibling(withId(R.id.positive)))).perform(click());
With this Error:
No views in hierarchy found matching
The xml
<view
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/setAGoalTitle"
android:layout_alignParentLeft="true"
class="com.xxx"
android:layout_marginTop="30dp"
android:id="@+id/timeGoalWidget"
app:goalLabel="@string/time_min_upper"
app:icon="@drawable/ic_icn_summary_time"
app:step="300"
app:valueFormat="time"
android:gravity="center_horizontal"
android:layout_marginBottom="60dp"
android:contentDescription="setAGoalTimeConfigurator"/>
<view
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignTop="@id/timeGoalWidget"
class="com.xxx"
android:id="@+id/distanceGoalWidget"
app:goalLabel="@string/distance_upper"
app:icon="@drawable/ic_icn_summary_track"
app:step="0.25"
app:valueFormat="decimal_two"
android:gravity="center_horizontal"
android:contentDescription="setAGoalDistanceConfigurator"/>
<view
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/timeGoalWidget"
android:layout_alignLeft="@id/timeGoalWidget"
class="com.xxx"
android:id="@+id/paceGoalWidget"
app:goalLabel="@string/pace_upper"
app:icon="@drawable/ic_icn_summary_pace"
app:valueFormat="time"
app:step="10"
android:gravity="center_horizontal"
android:layout_marginBottom="60dp"
android:contentDescription="setAGoalPaceConfigurator"/>
<view
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@id/distanceGoalWidget"
android:layout_alignTop="@id/paceGoalWidget"
class="com.xxx"
android:id="@+id/speedGoalWidget"
app:goalLabel="@string/speed_upper"
app:icon="@drawable/ic_icn_summary_speed"
app:step="0.5"
app:valueFormat="decimal_two"
android:gravity="center_horizontal"
android:contentDescription="setAGoalSpeedConfigurator"/>
<view
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/paceGoalWidget"
android:layout_alignLeft="@id/paceGoalWidget"
class="com.xxx"
android:id="@+id/inclineGoalWidget"
app:goalLabel="@string/incline_percent_upper"
app:icon="@drawable/ic_icn_summary_elevation"
app:step="0.5"
app:valueFormat="decimal_two"
android:gravity="center_horizontal"
android:contentDescription="setAGoalInclineConfigurator"/>
<view
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@id/speedGoalWidget"
android:layout_alignTop="@id/inclineGoalWidget"
class="com.xxx"
android:id="@+id/caloriesGoalWidget"
app:goalLabel="@string/calories_upper"
app:icon="@drawable/ic_icn_summary_calories"
app:step="10"
app:valueFormat="decimal_zero"
android:gravity="center_horizontal"
android:contentDescription="setAGoalCaloriesConfigurator"/>
</RelativeLayout>
The view xml that is used 6 times.
<ImageButton
android:id="@+id/increaseGoalButton"
android:layout_height="@dimen/view_goal_setting_incrementor_button_height_width"
android:layout_width="@dimen/view_goal_setting_incrementor_button_height_width"
android:background="@drawable/button_goal_widget"
android:gravity="center"
android:src="@drawable/ic_plus"
android:textSize="@dimen/view_goal_setting_incrementor_button_text_size"
android:textColor="@color/goal_configuration_widget_button_text_color"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginBottom="1dp"
android:contentDescription="@string/increase"/>
<ImageButton
android:id="@+id/decreaseGoalButton"
android:layout_height="@dimen/view_goal_setting_incrementor_button_height_width"
android:layout_width="@dimen/view_goal_setting_incrementor_button_height_width"
android:background="@drawable/button_goal_widget"
android:gravity="center"
android:src="@drawable/ic_minus"
android:textSize="@dimen/view_goal_setting_incrementor_button_text_size"
android:layout_alignParentRight="true"
android:textColor="@color/goal_configuration_widget_button_text_color"
android:layout_below="@id/increaseGoalButton"
android:contentDescription="@string/decrease"/>
<LinearLayout
android:id="@+id/goalWidgetValueContainer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_toLeftOf="@id/increaseGoalButton"
android:layout_centerVertical="true"
android:gravity="center_vertical|right"
android:layout_marginRight="@dimen/view_goal_setting_value_margin_right" >
<TextView
android:id="@+id/goalValueTextView"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:textColor="@color/goal_configuration_widget_value_text_color"
android:textSize="@dimen/view_goal_setting_value_text_size"
android:lineSpacingExtra="-10sp"
app:typeface="proxima_bold"
android:text="999:00"/>
<TextView
android:id="@+id/goalValueLabelTextView"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_gravity="right"
android:textSize="@dimen/view_goal_setting_value_label_text_size"
android:textColor="@color/goal_configuration_widget_value_text_color"
android:includeFontPadding="false"
android:lineSpacingExtra="10sp"
android:text="@string/incline_percent_upper"/>
</LinearLayout>
It is the ImageView with id increaseGoalButton that I am trying to click.
Based on your last comment you should use onView() instead of onData().
I think you'll be able to click the button using hasSibling() - example
onView(allOf(withId(R.id.positive), hasSibling(withDesc(someString))))
.perform(click());
or examples without your custom matcher (sibling view has text):
onView(allOf(withId(R.id.positive), hasSibling(withText(someString))))
.perform(click());
or (sibling view has content description):
onView(allOf(withId(R.id.positive), hasSibling(withContentDescription(someString))))
.perform(click());
EDITED:
OK, I'd try these two variants:
onView(allOf(withId(R.id.increaseGoalButton), isDescendantOfA(withId(R.id.timeGoalWidget))))
.perform(click());
or
onView(allOf(withId(R.id.increaseGoalButton), withParent(withId(R.id.timeGoalWidget))))
.perform(click());
None of your content descriptions match the string "description" that's why it doesn't find anything.
Assuming the button id is R.id.positive, and the id is unique in the current activity view, you can simply use:
onView(withId(R.id.positive)).perform(click());
来源：https://stackoverflow.com/questions/20848620/onchildview-and-hassiblings-with-espresso