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rewrote ScrollAwareFABBehavior.java to Kotlin. Can now implement FABAnimationBase to create different FAB animations

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NoodleMage
2016-02-22 22:36:44 +01:00
parent 34dc85e605
commit 144d315e27
4 changed files with 86 additions and 92 deletions
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31
app/src/main/java/eu/kanade/tachiyomi/ui/base/fab/FABAnimationBase.kt Normal file
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package eu.kanade.tachiyomi.ui.base.fab
import android.support.design.widget.CoordinatorLayout
import android.support.design.widget.FloatingActionButton
import android.support.v4.view.ViewCompat
import android.view.View
open class FABAnimationBase() : FloatingActionButton.Behavior()
{
open val mIsAnimatingOut = false;
override fun onStartNestedScroll(coordinatorLayout: CoordinatorLayout?, child: FloatingActionButton?, directTargetChild: View?, target: View?, nestedScrollAxes: Int): Boolean {
// Ensure we react to vertical scrolling
return nestedScrollAxes == ViewCompat.SCROLL_AXIS_VERTICAL ||
super.onStartNestedScroll(coordinatorLayout, child, directTargetChild, target, nestedScrollAxes)
}
override fun onNestedScroll(coordinatorLayout: CoordinatorLayout?, child: FloatingActionButton?, target: View?, dxConsumed: Int, dyConsumed: Int, dxUnconsumed: Int, dyUnconsumed: Int) {
super.onNestedScroll(coordinatorLayout, child, target, dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed)
if (dyConsumed > 0 && !this.mIsAnimatingOut && child!!.visibility == View.VISIBLE) {
// User scrolled down and the FAB is currently visible -> hide the FAB
animateOut(child)
} else if (dyConsumed < 0 && child!!.visibility != View.VISIBLE) {
// User scrolled up and the FAB is currently not visible -> show the FAB
animateIn(child)
}
}
open fun animateOut(button : FloatingActionButton) {}
open fun animateIn(button : FloatingActionButton) {}
}

54
app/src/main/java/eu/kanade/tachiyomi/ui/base/fab/FABAnimationUpDown.kt Normal file
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package eu.kanade.tachiyomi.ui.base.fab
import android.content.Context
import android.support.design.widget.FloatingActionButton
import android.support.v4.view.animation.FastOutSlowInInterpolator
import android.util.AttributeSet
import android.view.View
import android.view.animation.Animation
import android.view.animation.AnimationUtils
import eu.kanade.tachiyomi.R
class FABAnimationUpDown() : FABAnimationBase()
{
override var mIsAnimatingOut: Boolean = false
get() = super.mIsAnimatingOut
private val INTERPOLATOR = FastOutSlowInInterpolator()
/**
* Needed to prevent NoSuchMethodException
*/
constructor(ctx: Context, attrs: AttributeSet) : this() { }
override fun animateOut(button: FloatingActionButton) {
super.animateIn(button)
val anim = AnimationUtils.loadAnimation(button.context, R.anim.fab_hide_to_bottom)
anim.interpolator = INTERPOLATOR
anim.duration = 200L
anim.setAnimationListener(object : Animation.AnimationListener {
override fun onAnimationStart(animation: Animation) {
mIsAnimatingOut = true
}
override fun onAnimationEnd(animation: Animation) {
mIsAnimatingOut = false
button.visibility = View.GONE
}
override fun onAnimationRepeat(animation: Animation) {
}
})
button.startAnimation(anim)
}
override fun animateIn(button: FloatingActionButton) {
super.animateOut(button)
button.visibility = View.VISIBLE
val anim = AnimationUtils.loadAnimation(button.context, R.anim.fab_show_from_bottom)
anim.duration = 200L
anim.interpolator = INTERPOLATOR
button.startAnimation(anim)
}
}

91
app/src/main/java/eu/kanade/tachiyomi/ui/base/fab/ScrollAwareFABBehavior.java
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@@ -1,91 +0,0 @@
/*
* Copyright 2015 The Android Open Source Project
*
* 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.
*/
package eu.kanade.tachiyomi.ui.base.fab;
import android.content.Context;
import android.support.design.widget.CoordinatorLayout;
import android.support.design.widget.FloatingActionButton;
import android.support.v4.view.ViewCompat;
import android.support.v4.view.animation.FastOutSlowInInterpolator;
import android.util.AttributeSet;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.animation.Interpolator;
import eu.kanade.tachiyomi.R;
public class ScrollAwareFABBehavior extends FloatingActionButton.Behavior {
private static final Interpolator INTERPOLATOR = new FastOutSlowInInterpolator();
private boolean mIsAnimatingOut = false;
public ScrollAwareFABBehavior(Context context, AttributeSet attrs) {
super();
}
@Override
public boolean onStartNestedScroll(final CoordinatorLayout coordinatorLayout, final FloatingActionButton child,
final View directTargetChild, final View target, final int nestedScrollAxes) {
// Ensure we react to vertical scrolling
return nestedScrollAxes == ViewCompat.SCROLL_AXIS_VERTICAL
|| super.onStartNestedScroll(coordinatorLayout, child, directTargetChild, target, nestedScrollAxes);
}
@Override
public void onNestedScroll(final CoordinatorLayout coordinatorLayout, final FloatingActionButton child,
final View target, final int dxConsumed, final int dyConsumed,
final int dxUnconsumed, final int dyUnconsumed) {
super.onNestedScroll(coordinatorLayout, child, target, dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed);
if (dyConsumed > 0 && !this.mIsAnimatingOut && child.getVisibility() == View.VISIBLE) {
// User scrolled down and the FAB is currently visible -> hide the FAB
animateOut(child);
} else if (dyConsumed < 0 && child.getVisibility() != View.VISIBLE) {
// User scrolled up and the FAB is currently not visible -> show the FAB
animateIn(child);
}
}
// Same animation that FloatingActionButton.Behavior uses to hide the FAB when the AppBarLayout exits
private void animateOut(final FloatingActionButton button) {
Animation anim = AnimationUtils.loadAnimation(button.getContext(), R.anim.fab_hide_to_bottom);
anim.setInterpolator(INTERPOLATOR);
anim.setDuration(200L);
anim.setAnimationListener(new Animation.AnimationListener() {
public void onAnimationStart(Animation animation) {
ScrollAwareFABBehavior.this.mIsAnimatingOut = true;
}
public void onAnimationEnd(Animation animation) {
ScrollAwareFABBehavior.this.mIsAnimatingOut = false;
button.setVisibility(View.GONE);
}
@Override
public void onAnimationRepeat(final Animation animation) {
}
});
button.startAnimation(anim);
}
// Same animation that FloatingActionButton.Behavior uses to show the FAB when the AppBarLayout enters
private void animateIn(FloatingActionButton button) {
button.setVisibility(View.VISIBLE);
Animation anim = AnimationUtils.loadAnimation(button.getContext(), R.anim.fab_show_from_bottom);
anim.setDuration(200L);
anim.setInterpolator(INTERPOLATOR);
button.startAnimation(anim);
}
}