Files
Lawnchair/src/com/android/launcher3/widget/picker/WidgetsListTableView.java
T
Stevie Kideckel 803927bdae Use drawable states for list positions instead of swapping drawables
Replacing drawables interrupts touch feedback of ripples. Implementing
custom state lists allows altering the corner radius without cutting off
ripples and also means we reduce unnecessary object creation.

Fix: 190467676
Test: locally
Change-Id: I10eec042aae57d278f8254327d42df945767c7ac
2021-06-15 16:32:36 +00:00

60 lines
2.1 KiB
Java

/*
* Copyright (C) 2021 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 com.android.launcher3.widget.picker;
import android.content.Context;
import android.util.AttributeSet;
import android.widget.TableLayout;
import androidx.annotation.Nullable;
import androidx.annotation.UiThread;
/**
* Extension of {@link TableLayout} to support the drawable states used by
* {@link WidgetsListDrawableState}.
*/
public class WidgetsListTableView extends TableLayout {
@Nullable private WidgetsListDrawableState mListDrawableState;
public WidgetsListTableView(Context context) {
super(context);
}
public WidgetsListTableView(Context context, AttributeSet attrs) {
super(context, attrs);
}
/** Sets the {@link WidgetsListDrawableState} and refreshes the background drawable. */
@UiThread
public void setListDrawableState(WidgetsListDrawableState state) {
if (state == mListDrawableState) return;
mListDrawableState = state;
refreshDrawableState();
}
@Override
protected int[] onCreateDrawableState(int extraSpace) {
if (mListDrawableState == null) return super.onCreateDrawableState(extraSpace);
// Augment the state set from the super implementation with the custom states from
// mListDrawableState.
int[] drawableState =
super.onCreateDrawableState(extraSpace + mListDrawableState.mStateSet.length);
mergeDrawableStates(drawableState, mListDrawableState.mStateSet);
return drawableState;
}
}