Lemniscate is a library that will help you to make your progress view nice and sleek.

Demo

Demo application is available on Google Play.

The application is intentionally simple, without any libraries, to be understandable to more developers.

Setup

Add to your module's build.gradle:

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

and to your app build.gradle:

dependencies {
        compile 'com.github.vlad1m1r990:Lemniscate:1.2.0'
}

Usage

Example of usage:

<com.vlad1m1r.lemniscate.BernoullisProgressView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    app:duration="1000"
    app:hasHole="false"
    app:lineColor="@color/colorPrimary"
    app:lineLength="0.6"
    app:lineLengthChangeable="true"
    app:maxLineLength="0.8"
    app:minLineLength="0.4"
    app:sizeMultiplier="1"
    app:strokeWidth="5dp"/>

Params available in all views:

• duration (int) - duration of one animation cycle in millisecondes
• lineColor (color) - color of the line
• lineLengthChangeable (boolean) - if true, the line length will oscillate between maxLineLength and minLineLength
• lineLength (float) - length of line (in percentage; 1.0 is full length, 0.5 is half of length) if lineLengthChangeable is false
• maxLineLength (float) - max length of line (in percentage; 1.0 is full length, 0.5 is half of length) if lineLengthChangeable is true
• minLineLength (float) - min length of line (in percentage; 1.0 is full length, 0.5 is half of length) if lineLengthChangeable is true
• sizeMultiplier (float) - default size of view will be multiplied with that number
• strokeWidth (dimension) - width of line
• precision (int) - number of points in curve calculated in one cycle

Lemniscates

• BernoullisProgressView - Lemniscate of Bernoulli,
• GeronosProgressView - Lemniscate of Gerono
• BernoullisBowProgressView
• BernoullisSharpProgressView

Additional params:

• hasHole (boolean) - hole in a middle of Lemniscates

Roulettes

• EpitrochoidProgressView - Epitrochoid,
• HypotrochoidProgressView - Hypotrochoid

Additional params:

• radiusFixed (float) - radius of fixed circle
• radiusMoving (float) - radius of moving circle
• distanceFromCenter (float) - distance from the center of the moving circle
• numberOfCycles (float) - for one duration curve will be drawn on interval [0, 2 * mNumberOfCycles * π]

Scribble

• RoundScribbleProgressView
• ScribbleProgressView

Funny

• HeartProgressView - Heart Curve,
• CannabisProgressView - Cannabis Curve

Other

• XProgressView

Contributing

Want to contribute? You are welcome! Note that all pull request should go to development branch.

Credits

• Vladimir Jovanovic

License

Copyright 2016 Vladimir Jovanovic

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.