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README.md

Panel Layout

CI

Panel Layout is a UI library for Android that allows you to display a floating and resizable panel that can also snap to the edges.

Panel Layout makes use of ConstraintLayout to lay out panel with rest of the content.

This library is inspired by a good iOS UI framework: PanelKit

Importing Panel Layout

Bintray

dependencies {
    implementation("com.wayfair.panellayout:panellayout:<latest-version>")
}

Note: Panel Layout is currently in alpha and the public API it offers is subject to heavy changes.

Panel Layout API

Define if the Panel Layout is visible

var panelVisible: Boolean

The command that put Panel Layout in one of the predefine Panel Positions. Possible panel positions are: LEFT_EDGE, RIGHT_EDGE, TOP_EDGE, BOTTOM_EDGE, NO_EDGE.

fun snapPanelTo(panelPosition: PanelPosition)

The command that put the Panel Layout in absolute position with coordinates x and y.

fun popPanelTo(x: Int, y: Int)

Define a listener to define actions on different kinds of events.

var panelLayoutCallbacks: PanelLayout.Callbacks?

interface Callbacks {
    fun beforeSnap(position: PanelPosition)
    fun afterSnap(position: PanelPosition)
    fun beforePop(popToX: Int, popToY: Int)
    fun afterPop(popToX: Int, popToY: Int)
    fun afterClose()
}

Panel Layout attributes

panel_content - Resource id of view where is placed the Panel Layout

panel_view - Resource id of view inside the Panel Layout

panel_move_handle - Resource id of view used for moving the Panel Layout inside of content view

panel_resize_enabled - Flag that defines if the Panel Layout is resizable

panel_snap_to_edges - Define edges where the Panel Layout could be snapped. Possible values: all, none, left, top, right and bottom

panel_start_height - Start height

panel_start_width - Start width

How to Use Panel Layout

Add Panel Layout in your layout:

<com.wayfair.panellayout.PanelLayout
        android:id="@+id/panelLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:panel_content="@id/content"
        app:panel_move_handle="@id/moveHandle"
        app:panel_resize_enabled="true"
        app:panel_resize_handle="@id/resizeHandle"
        app:panel_snap_to_edges="all"
        app:panel_start_height="300dp"
        app:panel_start_width="300dp"
        app:panel_view="@id/panel">

        <FrameLayout
            android:id="@+id/content"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="#f3e5f5">
        </FrameLayout>

        <com.google.android.material.card.MaterialCardView
            android:id="@+id/panel"
            android:layout_width="300dp"
            android:layout_height="300dp"
            app:cardBackgroundColor="@color/white">

            <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent">

                <View
                    android:id="@+id/moveHandle"
                    android:layout_width="match_parent"
                    android:layout_height="48dp"
                    android:background="#e1bee7" />

                <ImageView
                    android:id="@+id/resizeHandle"
                    android:layout_width="48dp"
                    android:layout_height="48dp"
                    android:layout_gravity="bottom|end"
                    android:padding="4dp"
                    android:src="@drawable/ic_resize"
                    app:tint="@color/divider" />
            </FrameLayout>
        </com.google.android.material.card.MaterialCardView>
    </com.wayfair.panellayout.PanelLayout>

Controls and listeners in the code:

panelLayout.panelVisible = !panelLayout.panelVisible
panelLayout.popPanelTo(100, 100)
panelLayout.snapPanelTo(PanelPosition.RIGHT_EDGE)
panelLayout.panelLayoutCallbacks = object : PanelLayout.Callbacks {
    override fun beforeSnap(position: PanelPosition) {
        TODO("Not yet implemented")
    }

    override fun afterSnap(position: PanelPosition) {
        TODO("Not yet implemented")
    }

    override fun beforePop(popToX: Int, popToY: Int) {
        TODO("Not yet implemented")
    }

    override fun afterPop(popToX: Int, popToY: Int) {
        TODO("Not yet implemented")
    }

    override fun afterClose() {
        TODO("Not yet implemented")
    }
}

LICENSE

Panel Layout is licensed under 2-clause BSD License

See LICENSE.md for details.

CONTRIBUTION

Panel Layout is open to contribution. See CONTRIBUTING.md for details

About

Panel Layout is a UI library for Android that allows you to display a floating and resizable panel that can also snap to the edges.

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