Separate core components in its own module

1 files changed, 153 insertions, 0 deletions

diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/AnimUtils.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/AnimUtils.kt
new file mode 100644
index 0000000..86b049e
--- /dev/null
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/AnimUtils.kt
@@ -0,0 +1,153 @@
+package ca.allanwang.kau.utils
+
+import android.animation.Animator
+import android.animation.AnimatorListenerAdapter
+import android.content.Context
+import android.support.annotation.StringRes
+import android.view.View
+import android.view.ViewAnimationUtils
+import android.view.animation.Animation
+import android.view.animation.AnimationUtils
+import android.view.animation.DecelerateInterpolator
+import android.view.animation.Interpolator
+import android.widget.TextView
+import ca.allanwang.kau.kotlin.lazyContext
+
+/**
+ * Created by Allan Wang on 2017-06-01.
+ *
+ * Animation extension @KauUtils functions for Views
+ */
+@KauUtils fun View.rootCircularReveal(x: Int = 0, y: Int = 0, duration: Long = 500L, onStart: (() -> Unit)? = null, onFinish: (() -> Unit)? = null) {
+    this.addOnLayoutChangeListener(object : View.OnLayoutChangeListener {
+        override @KauUtils fun onLayoutChange(v: View, left: Int, top: Int, right: Int, bottom: Int, oldLeft: Int, oldTop: Int,
+                                              oldRight: Int, oldBottom: Int) {
+            v.removeOnLayoutChangeListener(this)
+            var x2 = x
+            var y2 = y
+            if (x2 > right) x2 = 0
+            if (y2 > bottom) y2 = 0
+            val radius = Math.hypot(Math.max(x2, right - x2).toDouble(), Math.max(y2, bottom - y2).toDouble()).toInt()
+            val reveal = ViewAnimationUtils.createCircularReveal(v, x2, y2, 0f, radius.toFloat())
+            reveal.interpolator = DecelerateInterpolator(1f)
+            reveal.duration = duration
+            reveal.addListener(object : AnimatorListenerAdapter() {
+                override @KauUtils fun onAnimationStart(animation: Animator?) {
+                    visible()
+                    onStart?.invoke()
+                }
+
+                override @KauUtils fun onAnimationEnd(animation: Animator?) = onFinish?.invoke() ?: Unit
+                override @KauUtils fun onAnimationCancel(animation: Animator?) = onFinish?.invoke() ?: Unit
+            })
+            reveal.start()
+        }
+    })
+}
+
+@KauUtils fun View.circularReveal(x: Int = 0, y: Int = 0, offset: Long = 0L, radius: Float = -1.0f, duration: Long = 500L, onStart: (() -> Unit)? = null, onFinish: (() -> Unit)? = null) {
+    if (!isAttachedToWindow) {
+        onStart?.invoke()
+        visible()
+        onFinish?.invoke()
+        return
+    }
+    var r = radius
+    if (r < 0.0f) {
+        r = Math.max(Math.hypot(x.toDouble(), y.toDouble()), Math.hypot((width - x.toDouble()), (height - y.toDouble()))).toFloat()
+    }
+    val anim = ViewAnimationUtils.createCircularReveal(this, x, y, 0f, r).setDuration(duration)
+    anim.startDelay = offset
+    anim.addListener(object : AnimatorListenerAdapter() {
+        override @KauUtils fun onAnimationStart(animation: Animator?) {
+            visible()
+            onStart?.invoke()
+        }
+
+        override @KauUtils fun onAnimationEnd(animation: Animator?) = onFinish?.invoke() ?: Unit
+        override @KauUtils fun onAnimationCancel(animation: Animator?) = onFinish?.invoke() ?: Unit
+    })
+    anim.start()
+}
+
+@KauUtils fun View.circularHide(x: Int = 0, y: Int = 0, offset: Long = 0L, radius: Float = -1.0f, duration: Long = 500L, onStart: (() -> Unit)? = null, onFinish: (() -> Unit)? = null) {
+    if (!isAttachedToWindow) {
+        onStart?.invoke()
+        invisible()
+        onFinish?.invoke()
+        return
+    }
+    var r = radius
+    if (r < 0.0f) {
+        r = Math.max(Math.hypot(x.toDouble(), y.toDouble()), Math.hypot((width - x.toDouble()), (height - y.toDouble()))).toFloat()
+    }
+    val anim = ViewAnimationUtils.createCircularReveal(this, x, y, r, 0f).setDuration(duration)
+    anim.startDelay = offset
+    anim.addListener(object : AnimatorListenerAdapter() {
+        override @KauUtils fun onAnimationStart(animation: Animator?) = onStart?.invoke() ?: Unit
+
+        override @KauUtils fun onAnimationEnd(animation: Animator?) {
+            invisible()
+            onFinish?.invoke() ?: Unit
+        }
+
+        override @KauUtils fun onAnimationCancel(animation: Animator?) = onFinish?.invoke() ?: Unit
+    })
+    anim.start()
+}
+
+@KauUtils fun View.fadeIn(offset: Long = 0L, duration: Long = 200L, onStart: (() -> Unit)? = null, onFinish: (() -> Unit)? = null) {
+    if (!isAttachedToWindow) {
+        onStart?.invoke()
+        visible()
+        onFinish?.invoke()
+        return
+    }
+    if (isAttachedToWindow) {
+        val anim = AnimationUtils.loadAnimation(context, android.R.anim.fade_in)
+        anim.startOffset = offset
+        anim.duration = duration
+        anim.setAnimationListener(object : Animation.AnimationListener {
+            override @KauUtils fun onAnimationRepeat(animation: Animation?) {}
+            override @KauUtils fun onAnimationEnd(animation: Animation?) = onFinish?.invoke() ?: Unit
+            override @KauUtils fun onAnimationStart(animation: Animation?) {
+                visible()
+                onStart?.invoke()
+            }
+        })
+        startAnimation(anim)
+    }
+}
+
+@KauUtils fun View.fadeOut(offset: Long = 0L, duration: Long = 200L, onStart: (() -> Unit)? = null, onFinish: (() -> Unit)? = null) {
+    if (!isAttachedToWindow) {
+        onStart?.invoke()
+        invisible()
+        onFinish?.invoke()
+        return
+    }
+    val anim = AnimationUtils.loadAnimation(context, android.R.anim.fade_out)
+    anim.startOffset = offset
+    anim.duration = duration
+    anim.setAnimationListener(object : Animation.AnimationListener {
+        override @KauUtils fun onAnimationRepeat(animation: Animation?) {}
+        override @KauUtils fun onAnimationEnd(animation: Animation?) {
+            invisible()
+            onFinish?.invoke()
+        }
+
+        override @KauUtils fun onAnimationStart(animation: Animation?) {
+            onStart?.invoke()
+        }
+    })
+    startAnimation(anim)
+}
+
+@KauUtils fun TextView.setTextWithFade(text: String, duration: Long = 200, onFinish: (() -> Unit)? = null) {
+    fadeOut(duration = duration, onFinish = {
+        setText(text)
+        fadeIn(duration = duration, onFinish = onFinish)
+    })
+}
+
+@KauUtils fun TextView.setTextWithFade(@StringRes textId: Int, duration: Long = 200, onFinish: (() -> Unit)? = null) = setTextWithFade(context.getString(textId), duration, onFinish)
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