使用 Espresso 单击 ListView 中的特定复选框

Question

I have a ListView where each row has a checkbox:

Now I want to click on the checkbox in the 4th row. I have the data model for each row, so I can easily use onData() to select a row with the given data. But how do I click on the checkbox in that row?

Answer 1

After a little research, I found DataInteraction.atPosition() and DataInteraction.onChildView() . For example, I can do

onData(instanceOf(BaseballCard.class))
            .atPosition(4)
            .onChildView(withId(R.id.checkmark))
            .perform(click());

Answer 2

If your row layout allows clicking on the row to set the CheckBox, you can use this to click the ListView row:

onData(anything()).atPosition(4).perform(click());

Otherwise you can click directly on the CheckBox without knowing its ID:

onData(anything())
   .atPosition(4)
   .onChildView(withClassName(Matchers.containsString("CheckBox")))
   .perform(click());

You can then assert that the CheckBox is checked:

onData(anything())
   .atPosition(4)
   .onChildView(withClassName(Matchers.containsString("CheckBox")))
   .check(matches(isChecked()));

More info: https://github.com/shohrabuddin/Espresso

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