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this library is based on Material design guidance

Home Page: https://material.io/design/components/backdrop.html

License: Apache License 2.0

Kotlin 90.08% Java 9.92%

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backdroplayout's Issues

Reverse height

Hello! I have a problem with method

private fun getTransitionHeight(): Float {
return Math.min(getBackLayout().height.toFloat(),height - peeckHeight)
}

So, for correct work user must insert in peeckHeight height of front layout. But if I want to dropdown depending of background content height I need to insert height to global top like here:

return Math.min(getBackLayout().height.toFloat(),peeckHeight)

I think it will be better if you do a parameter to make it optional. Thanks.

implement Backdrop on a Fragment

toolbar menu icon doesn't appear if I implement Backdrop on a Fragment
how can i solve this

another request : can I toggle the Backdrop's front and back views programmatically?

Unnecessary utils

inline var View.isVisible: Boolean
    get() = visibility == View.VISIBLE
    set(value) {
        visibility = if (value) View.VISIBLE else View.GONE
    }

from androidx.core.view.isVisible alerady exists.

front background color changes when menu opened

as you can see in the second image, a weird shadow appeard (left top corner)

this is my front_layout.xml :

<androidx.constraintlayout.widget.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">    
    <com.google.android.material.card.MaterialCardView    
        android:layout_width="match_parent"    
        android:layout_height="match_parent"    
          app:layout_constraintLeft_toLeftOf="parent"    
        app:layout_constraintTop_toTopOf="parent"    
        app:shapeAppearanceOverlay="@style/AppTheme.CardviewCut">    
    </com.google.android.material.card.MaterialCardView>    
</androidx.constraintlayout.widget.ConstraintLayout>

this is my back_layout.xml:

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"    
    android:layout_width="match_parent"    
    android:layout_height="100dp"    
    android:background="@color/colorPrimary"    
    xmlns:app="http://schemas.android.com/apk/res-auto">    
    <TextView    
        android:id="@+id/textView"    
        android:layout_width="wrap_content"    
        android:layout_height="wrap_content"    
        android:text="BACK"    
        app:layout_constraintStart_toStartOf="parent"    
        app:layout_constraintTop_toTopOf="parent" />    
</androidx.constraintlayout.widget.ConstraintLayout>

this is my activity_main.xml:

    <com.google.android.material.appbar.MaterialToolbar    
        android:id="@+id/toolbar"    
        android:layout_width="match_parent"    
        android:layout_height="wrap_content"    
        android:background="?attr/colorPrimary"    
        android:minHeight="?attr/actionBarSize"    
        android:theme="?attr/actionBarTheme" />    
    <com.roacult.backdrop.BackdropLayout    
        android:id="@+id/container"    
        app:front_layout="@id/includedFront"    
        app:back_layout="@id/includedBack"    
        app:toolbarId="@id/toolbar"    
        app:peekHeight="56dp"    
        app:disable_when_open="true"    
        app:menuDrawable="@drawable/ic_menu"    
        app:closeDrawable="@drawable/ic_close"    
        app:animationDuration="100"    
        android:layout_width="match_parent"    
        android:layout_height="match_parent">    
        <include    
            android:id="@+id/includedBack"    
            layout="@layout/back_layout"/>    
        <include    
            android:id="@+id/includedFront"    
            layout="@layout/front_layout"/>    
    </com.roacult.backdrop.BackdropLayout>

How can i findViewById in Back and Front layout

I want control view between Back and Front layout , how can i do that ?

Hide back layout when front layout is touched

Awesome library as we wait for the official material version. I can't however hide the back layout by touching the top layout. Is this possible?

Add pull to OPEN and push to CLOSE backdrop

Adding pull and push support to open and close backdrop

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