1
在這段代碼片段中,將tools:layout_constraintTop_creator
屬性設置爲「1」是什麼意思?在Android ConstraintLayout中,什麼是工具:layout_constraintTop_creator屬性?
<TextView
android:text="@string/passenger_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/textViewPassengerLabel"
android:textAppearance="@style/TextAppearance.AppCompat.Caption"
android:letterSpacing="0.5"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginLeft="16dp"
tools:layout_constraintTop_creator="1"
tools:layout_constraintLeft_creator="1" />