Twidere-App-Android-Twitter.../twidere/src/main/kotlin/org/mariotaku/twidere/util/view/ConversationAvatarTransform...

41 lines
1.4 KiB
Kotlin

/*
* Twidere - Twitter client for Android
*
* Copyright (C) 2012-2017 Mariotaku Lee <mariotaku.lee@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.mariotaku.twidere.util.view
import android.graphics.Rect
import android.view.View
/**
* Created by mariotaku on 2017/2/21.
*/
class ConversationAvatarTransformation : AppBarChildBehavior.ScaleTransformation() {
override fun onTargetChanged(child: View, frame: Rect, target: View, targetFrame: Rect, percent: Float, offset: Int) {
super.onTargetChanged(child, frame, target, targetFrame, percent, offset)
if (percent < 1) {
child.alpha = 1f
target.alpha = 0f
} else {
child.alpha = 0f
target.alpha = 1f
}
}
}