在Android中,使用ConstraintSet以编程方式向视图添加约束不会产生预期的结果?

我有一个自定义的ConstraintLayout,里面有一个文本视图。我正在以编程的方式做每件事 总之,代码如下:

public class CustomView extends ConstraintLayout {
    private TextView textView;

    public CustomView(Context context) {
        super(context);

        textView = new TextView(context);
        textView.setId(View.generateViewId());
        textView.setText("...");

        // Adding border to the view in order to visualize the frame
        GradientDrawable border = new GradientDrawable();
        border.setColor(Color.TRANSPARENT);
        border.setStroke(1, Color.BLACK);
        textView.setBackground(border);
        addView(textView);

        // Apply constraints to textView. Left = right = top = bottom = 120

        ConstraintSet set = new ConstraintSet();
        set.clone(this);
        set.connect(textView.getId(), ConstraintSet.LEFT, ConstraintSet.PARENT_ID, ConstraintSet.LEFT, 120);
        set.connect(textView.getId(), ConstraintSet.TOP, ConstraintSet.PARENT_ID, ConstraintSet.TOP, 120);
        set.connect(textView.getId(), ConstraintSet.RIGHT, ConstraintSet.PARENT_ID, ConstraintSet.RIGHT, 120);
        set.connect(textView.getId(), ConstraintSet.BOTTOM, ConstraintSet.PARENT_ID, ConstraintSet.BOTTOM, 120);
        set.applyTo(this);
    }
}

1. 如果textView中的文本较短: