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SparkButton

platform API License Android Arsenal Build Status

SparkButton

Highly customizable and lightweight library that allows you to create a button with animation effect similar to Twitter's heart animation.

Library supports OS on API 14 and above.

Showcase Video

Grab the above demo app from here :

Get it on Google Play

Dependency

Add it in your root build.gradle at the end of repositories:

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

and then add dependency

dependencies {
    compile 'com.github.varunest:sparkbutton:1.0.5'
}

Usage

XML

Java

SparkButton button  = new SparkButtonBuilder(context)
                .setActiveImage(R.drawable.active_image)
                .setInActiveImage(R.drawable.inactive_image)
                .setDisabledImage(R.drawable.disabled_image)
                .setImageSizePx(getResources().getDimensionPixelOffset(R.dimen.button_size))
                .setPrimaryColor(ContextCompat.getColor(context, R.color.primary_color))
                .setSecondaryColor(ContextCompat.getColor(context, R.color.secondary_color))
                .build();

Attributes

Documentation

To use SparkButton simply include XML script or build it using SparkButtonBuilder as stated above.

Various attributes that you can control are following:

Button Image and Colors

You can specify both active and inactive image of the button. If only active image is specified SparkButton will behave as a normal button, otherwise as a switch.

SparkButton takes two colors primary and secondary. (It is recommended that primary color is lighter than secondary for better results).

XML

app:sparkbutton_activeImage="@drawable/active_image"
app:sparkbutton_inActiveImage="@drawable/inactive_image"
app:sparkbutton_primaryColor="@color/primaryColor"
app:sparkbutton_secondaryColor="@color/secondaryColor"

Java

SparkButton button = new SparkButtonBuilder(context)
                        .setActiveImage(R.drawable.active_image)
                        .setInActiveImage(R.drawable.inactive_image)
                        .setPrimaryColor(ContextCompat.getColor(context, R.color.primary_color))
                        .setSecondaryColor(ContextCompat.getColor(context, R.color.secondary_color))
                        .build();

Animation Speed

You can specify the fraction by which the animation speed should increase/decrease.

XML

app:sparkbutton_animationSpeed="1.5"

Java

sparkbutton.setAnimationSpeed(1.5f);

Button State

If you are using the SparkButton as a switch, you can check/uncheck the button

sparkButton.setChecked(true);

Event Listener

Simply call setEventListener to listen click events.

sparkButton.setEventListener(new SparkEventListener(){
        @Override
        void onEvent(ImageView button, boolean buttonState) {
            if (buttonState) {
                // Button is active
            } else {
                // Button is inactive
            }
        }
});

Play Animation

If you want to play animation regardless of click event execute following function:

sparkButton.playAnimation();

Advanced

  • There can be a situation when you don't want the button to scale download when pressed or consume touch. You can avoid this by calling the following function :

    sparkButton.pressOnTouch(false);
  • If you are using SparkButton between layout hierarchy, it can result in animation getting cropped. To avoid this cropping of the animation, set clipChildren and clipToPadding XML attribute of all the parent views to false.

  • You can view examples of few custom buttons in the sample app.

Inspiration

SparkButton was inspired by : https://github.com/frogermcs/LikeAnimation

Contribution

Any contributions, large or small,features, bug fixes are welcomed and appreciated. Use pull requests, they will be thoroughly reviewed and discussed.

License

Library falls under [Apache 2.0] (LICENSE.md)

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