Firstly, add Jitpack repository in your root build.gradle file (not your module build.gradle file):

allprojects {
    repositories {
        ...
        maven { url "https://jitpack.io" }
    }
}

Add dependency to your module's build.gradle file:

dependencies {
    compile 'com.github.dimorinny:show-case-card-view:0.0.1'
}

You can show this view on your activity or fragment using this code:

new ShowCaseView.Builder(MainActivity.this)
    .withTypedPosition(new TopLeft())
    .withTypedRadius(new Radius(186F))
    .withContent(
            "This is hello world!"
    )
    .build()
    .show(this);

Available positions:

• Position(PointF position)
• TopLeft()
• TopRight()
• BottomLeft()
• BottomRight()
• TopLeftToolbar()
• TopRightToolbar()
• ViewPosition(View view)

Available radiuses:

• Radius(float radius)
• ViewRadius(View view)

For more complication usage - see example.