Slide Toggle for Android

Question

Anyone know of any open source implementation of a slide toggle for android. The default android toggle(ToggleButton) is not pretty. I am looking for anything similar to iOS. I should be able to implement one from scratch. But if anything similar is already available, then i can build on it.

Thanks in advance to the wonderful stackoverflow community.

Edit1: What I meant by iOS Slide Toggle is UISwitch

Edit2: Just want to summarize the answer. Commonsware provided the clue. I ended up back porting the Switch code from 4.0 to2.2.2. Thanks to the open-sourced code, back porting was not very difficult. The code is hosted on git hub. http://github.com/pellucide/Android-Switch-Demo-pre-4.0/tree/master/

A screenshot from that project

Answer 1

you can use the sliding drawer widget in android to have a sliding toggle switch. you just have to "slice" the ios toggle images into3 parts, one for the handle, one for the sliding drawer background and one for the content part. then put an image on top of it like a frame to give you the "round edges"

here's what i've come up with: XML Layout

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
    <FrameLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="100dp" >
        <SlidingDrawer
            android:id="@+id/slidingDrawer1"
            android:layout_width="154dp"
            android:layout_height="54dp"
            android:background="@drawable/ios_retina_toggle_on_full"
            android:content="@+id/content"
            android:handle="@+id/handle"
            android:orientation="horizontal" >
            <ImageButton
                android:id="@+id/handle"
                android:layout_width="54dp"
                android:layout_height="54dp"
                android:background="#00000000"
                android:src="@drawable/ios_retina_toggle_button" />
            <ImageView
                android:id="@+id/content"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@drawable/ios_retina_toggle_off" />
        </SlidingDrawer>
        <ImageView
            android:id="@+id/imageView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ios_retina_toggle_frame" />
    </FrameLayout>
</LinearLayout>

ios_retina_toggle_on_full

ios_retina_toggle_button

ios_retina_toggle_off

ios_retina_toggle_frame

and finally a screenshot of how it looked on the emulator on a 3.7 WVGA screen running gingerbread: