| /* |
| * Copyright (C) 2020 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.internal.widget; |
| |
| import android.annotation.Nullable; |
| import android.content.Context; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.widget.RemoteViews; |
| import android.widget.TextView; |
| |
| import java.util.function.Consumer; |
| |
| /** |
| * A text view whose visibility can be observed. |
| */ |
| @RemoteViews.RemoteView |
| public class ObservableTextView extends TextView { |
| |
| private Consumer<Integer> mOnVisibilityChangedListener; |
| |
| public ObservableTextView(Context context) { |
| super(context); |
| } |
| |
| public ObservableTextView(Context context, @Nullable AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| public ObservableTextView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| } |
| |
| public ObservableTextView(Context context, @Nullable AttributeSet attrs, int defStyleAttr, |
| int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| } |
| |
| @Override |
| protected void onVisibilityChanged(View changedView, int visibility) { |
| super.onVisibilityChanged(changedView, visibility); |
| if (changedView == this) { |
| if (mOnVisibilityChangedListener != null) { |
| mOnVisibilityChangedListener.accept(visibility); |
| } |
| } |
| } |
| |
| public void setOnVisibilityChangedListener(Consumer<Integer> listener) { |
| mOnVisibilityChangedListener = listener; |
| } |
| } |