[Android] Coach Mark

단말마다 width, height를 알기 어렵기때문에,

Activity 자체를 ConstraintLayout로 짠 후

ConstraintLayout를 제일 하단에 하나 더 얹어 해결하도록 한다.

 

나는 80%의 dimmed를 주었다 (#cc000000)

 

 

<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!-- Content Area -->
    <android.support.constraint.ConstraintLayout
        android:id="@+id/mainContents"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"> 
    </android.support.constraint.ConstraintLayout>
    
    <!-- Coach Mark Area-->
    <android.support.constraint.ConstraintLayout
        android:id="@+id/coachMark"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#cc000000"> 
    </android.support.constraint.ConstraintLayout>
    
</android.support.constraint.ConstraintLayout>