67 lines
2.0 KiB
Java
67 lines
2.0 KiB
Java
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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package com.android.internal.widget;
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import android.annotation.Nullable;
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import android.content.Context;
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import android.util.AttributeSet;
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import android.view.View;
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import android.widget.RemoteViews;
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import android.widget.TextView;
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import java.util.function.Consumer;
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/**
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* A text view whose visibility can be observed.
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*/
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@RemoteViews.RemoteView
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public class ObservableTextView extends TextView {
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private Consumer<Integer> mOnVisibilityChangedListener;
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public ObservableTextView(Context context) {
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super(context);
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}
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public ObservableTextView(Context context, @Nullable AttributeSet attrs) {
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super(context, attrs);
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}
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public ObservableTextView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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}
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public ObservableTextView(Context context, @Nullable AttributeSet attrs, int defStyleAttr,
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int defStyleRes) {
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super(context, attrs, defStyleAttr, defStyleRes);
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}
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@Override
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protected void onVisibilityChanged(View changedView, int visibility) {
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super.onVisibilityChanged(changedView, visibility);
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if (changedView == this) {
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if (mOnVisibilityChangedListener != null) {
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mOnVisibilityChangedListener.accept(visibility);
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}
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}
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}
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public void setOnVisibilityChangedListener(Consumer<Integer> listener) {
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mOnVisibilityChangedListener = listener;
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}
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}
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