JarCastingExpressView
A micro-interaction library which enables animation for various actions or reactions. Inspired from Twitter's and Instagram's like button animation.
Gradle Dependency
dependencies {
implementation "co.ankurg.expressview:expressview:0.0.3"
}
XML
<co.ankurg.expressview.ExpressView
android:id="@+id/likeButton"
android:layout_width="64dp"
android:layout_height="64dp" />
Observing check state
View reacts to clicks and maintains the state on its own. To listen to the check state change, implement the following callback.
import co.ankurg.expressview.OnCheckListener
...
likeButton.setOnCheckListener(object : OnCheckListener {
override fun onChecked(view: ExpressView?) {
Log.d(TAG, "Checked")
}
override fun onUnChecked(view: ExpressView?) {
Log.d(TAG, "Unchecked")
}
})
Attributes
| Name | Description | Value | Default |
|---|---|---|---|
| uncheckedIcon | Uncheked icon sate | Drawable | Heart Icon |
| checkedIcon | Checked icon state | Drawable | Heart Icon |
| uncheckedIconTint | Unchecked icon color | Color | #A1A1A1A1 |
| checkedIconTint | Checked icon color | Color | #FFFF0000 |
| iconSize | Size of icon, applied to both widht & height | Dimension | 55% of ExpressView |
| burstColor | Color of line burst behind the icon | Color | #FFFF0000 |
| setChecked | Initial check state of icon | Boolean | false |
Note:- Default ExpressView size is 48dp and iconSize is 26dp (55% of 48dp)
Public Kotlin/Java properties
| Name | Description | Value | Default |
|---|---|---|---|
| isChecked | Initial check state of icon | Boolean | false |
| animationStartDelay | Delay between the tap and animation, applied to both icon and burst animations | Long | 50L |
| iconAnimationDuration | Animation duration of icon inside ExpressView | Long | 700L |
| burstAnimationDuration | Animation duration of line burst behind the icon | Long | 500L |
| interpolator | Animation interpolator for the icon inside ExpressView | Interpolator | BounceInterpolator |
| onCheckListener | Check state change listener/callback | OnCheckListener | null |