travisc 0f29cbf042 Make widget its own package, change lib into a pure export package.
This also moves expandable and transformation into their own packages, as was originally intended (but they had resources, which was problematic at that time). CoordinatorLayout has been moved out of the typical source root to ease its later deletion (when it has made it into core-ui).

PiperOrigin-RevId: 180728823
2018-01-11 11:08:30 -05:00

76 lines
2.7 KiB
Java

/*
* Copyright (C) 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 android.support.design.widget;
import android.animation.AnimatorInflater;
import android.animation.ObjectAnimator;
import android.animation.StateListAnimator;
import android.content.Context;
import android.content.res.TypedArray;
import android.support.annotation.RequiresApi;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewOutlineProvider;
@RequiresApi(21)
class ViewUtilsLollipop {
private static final int[] STATE_LIST_ANIM_ATTRS = new int[] {android.R.attr.stateListAnimator};
static void setBoundsViewOutlineProvider(View view) {
view.setOutlineProvider(ViewOutlineProvider.BOUNDS);
}
static void setStateListAnimatorFromAttrs(
View view, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
final Context context = view.getContext();
final TypedArray a =
context.obtainStyledAttributes(attrs, STATE_LIST_ANIM_ATTRS, defStyleAttr, defStyleRes);
try {
if (a.hasValue(0)) {
StateListAnimator sla =
AnimatorInflater.loadStateListAnimator(context, a.getResourceId(0, 0));
view.setStateListAnimator(sla);
}
} finally {
a.recycle();
}
}
/** Creates and sets a {@link StateListAnimator} with a custom elevation value */
static void setDefaultAppBarLayoutStateListAnimator(final View view, final float elevation) {
final int dur = view.getResources().getInteger(R.integer.app_bar_elevation_anim_duration);
final StateListAnimator sla = new StateListAnimator();
// Enabled and collapsible, but not collapsed means not elevated
sla.addState(
new int[] {android.R.attr.enabled, R.attr.state_collapsible, -R.attr.state_collapsed},
ObjectAnimator.ofFloat(view, "elevation", 0f).setDuration(dur));
// Default enabled state
sla.addState(
new int[] {android.R.attr.enabled},
ObjectAnimator.ofFloat(view, "elevation", elevation).setDuration(dur));
// Disabled state
sla.addState(new int[0], ObjectAnimator.ofFloat(view, "elevation", 0).setDuration(0));
view.setStateListAnimator(sla);
}
}