EasyPullLayout

A light Pull Layout for Android that support both VERTICAL and HORIZONTAL. You can wrap any layout you want to support the pulling action.

ScreenShots

RecyclerView

ListView

ViewPager

Fixed

Nested

Usage

Add to your root build.gradle:

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

Add the dependency:

dependencies {
    compile 'com.github.huzenan:EasyPullLayout:v1.0.0'
}

layout

Just wrap any layout with EasyPullLayout, then set the 'layout_type' attributes to 'content', 'edge_left', 'edge_top', 'edge_right' or 'edge_bottom':

<com.hzn.lib.EasyPullLayout
    android:id="@+id/epl"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:max_offset_bottom="150dp"
    app:max_offset_top="150dp"
    app:trigger_offset_bottom="75dp"
    app:trigger_offset_top="75dp">

    <com.hzn.easypulllayout.recyclerview.TransformerView
        android:id="@+id/topView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_type="edge_top" />

    <com.hzn.easypulllayout.recyclerview.TransformerView
        android:id="@+id/bottomView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_type="edge_bottom" />

    <android.support.v7.widget.RecyclerView
        android:id="@+id/rv"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_type="content" />
</com.hzn.lib.EasyPullLayout>

Activity

Then set listeners:

    // set Pull Listener if you have to change the edge view while pulling
    epl.setOnPullListener { type, fraction, changed ->
        when (type) {
            EasyPullLayout.TYPE_EDGE_TOP -> {
                topView.setFraction(START_FRACTION, fraction)
                if (fraction == 1f)
                    topView.ready()
                else
                    topView.idle()
            }
            ...
        }
    }
    // set Trigger Listener, do your actions while the edge view is triggered
    epl.setOnTriggerListener {
        when (it) {
            EasyPullLayout.TYPE_EDGE_TOP -> {
                topView.triggered()
            }
            EasyPullLayout.TYPE_EDGE_BOTTOM -> {
                bottomView.triggered()
            }
            Loading()
        }
    }

Also if you want to check the edge yourself, set the Edge Listener(this will cover the default checking process):

    epl.setOnEdgeListener {
        ...
        if (onEdge)
            return EasyPullLayout.TYPE_EDGE_TOP
        ...
    }

LayoutParams

name	description
layout_type	content, edge_left, edge_top, edge_right or edge_bottom

Attributes

name	description
trigger_offset_left	the triggered offset on left side
trigger_offset_top	the triggered offset on top side
trigger_offset_right	the triggered offset on right side
trigger_offset_bottom	the triggered offset on bottom side
max_offset_left	the max offset on left side
max_offset_top	the max offset on top side
max_offset_right	the max offset on right side
max_offset_bottom	the max offset on bottom side
fixed_content_left	true if left edge is in content fixed mode
fixed_content_top	true if top edge is in content fixed mode
fixed_content_right	true if right edge is in content fixed mode
fixed_content_bottom	true if bottom edge is in content fixed mode
roll_back_duration	the duration while the edge view rolling back
sticky_factor	0f~1f, default 0.66f, the factor that decide how sticky while pulling