These constraints are also overlaid onto the Design view when a specific widget in the layout is selected or when the mouse pointer hovers over the design area as illustrated in Figure 26-2: As can be seen in Figure 26-1 above, Layout view also displays the constraint connections (in this case opposing constraints used to center a button within the layout). The Layout view, on the other hand, displays a blueprint style of view where the widgets are represented by shaded outlines. The Design view (positioned on the left in the above figure) presents a вЂњwhat you see is what you getвЂќ representation of the layout, wherein the layout appears as it will within the running app. These views of the layout may be displayed individually or, as in Figure 26-1, side by side:

The chapter entitled вЂњA Guide to the Android Studio Layout Editor ToolвЂќ explained that the Android Studio Layout Editor tool provides two ways to view the user interface layout of an activity in the form of Design and Layout (also known as blueprint ) views. Now that the basic concepts of ConstraintLayout have been outlined in the previous chapter, this chapter will explore these concepts in more detail while also outlining the ways in which the Layout Editor tool allows ConstraintLayout-based user interfaces to be designed and implemented. A Guide to using ConstraintLayout in Android StudioДЄs mentioned more than once in previous chapters, Google has made significant changes to the Android Studio Layout Editor tool, many of which were made solely to support user interface layout design using ConstraintLayout.

Infer constraints android studio 3.0.1