EspressoViewMatchers.java 文件源码

public static Matcher<View> withTableLayout(final int tableLayoutId, final int row, final int column) {
  return new CustomTypeSafeMatcher<View>(format("Table layout with id: {0} at row: {1} and column: {2}",
    tableLayoutId, row, column)) {
    @Override
    protected boolean matchesSafely(View item) {
      View view = item.getRootView().findViewById(tableLayoutId);

      if (view == null || !(view instanceof TableLayout))
        return false;
      TableLayout tableLayout = (TableLayout) view;
      TableRow tableRow = (TableRow) tableLayout.getChildAt(row);
      View childView = tableRow.getChildAt(column);
      return childView == item;
    }
  };
}