23cbe85610
Since LocaleList needs to depend on android.os.Parcelable, we cannot let that class belong to "android.util" package, which causes layering violation. Bug: 28819696 Change-Id: Ia8de2ee9df3dd0a42b1fe84574439519b680fe18
96 lines
3.2 KiB
Java
96 lines
3.2 KiB
Java
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. 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 distributed under the
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* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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package com.android.systemui;
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import android.annotation.Nullable;
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import android.content.Context;
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import android.content.res.Configuration;
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import android.content.res.TypedArray;
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import android.os.LocaleList;
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import android.util.AttributeSet;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.widget.FrameLayout;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Custom {@link FrameLayout} that re-inflates when changes to {@link Configuration} happen.
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* Currently supports changes to density and locale.
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*/
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public class AutoReinflateContainer extends FrameLayout {
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private final List<InflateListener> mInflateListeners = new ArrayList<>();
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private final int mLayout;
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private int mDensity;
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private LocaleList mLocaleList;
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public AutoReinflateContainer(Context context, @Nullable AttributeSet attrs) {
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super(context, attrs);
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mDensity = context.getResources().getConfiguration().densityDpi;
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mLocaleList = context.getResources().getConfiguration().getLocales();
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TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AutoReinflateContainer);
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if (!a.hasValue(R.styleable.AutoReinflateContainer_android_layout)) {
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throw new IllegalArgumentException("AutoReinflateContainer must contain a layout");
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}
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mLayout = a.getResourceId(R.styleable.AutoReinflateContainer_android_layout, 0);
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inflateLayout();
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}
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@Override
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protected void onConfigurationChanged(Configuration newConfig) {
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super.onConfigurationChanged(newConfig);
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boolean shouldInflateLayout = false;
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final int density = newConfig.densityDpi;
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if (density != mDensity) {
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mDensity = density;
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shouldInflateLayout = true;
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}
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final LocaleList localeList = newConfig.getLocales();
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if (localeList != mLocaleList) {
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mLocaleList = localeList;
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shouldInflateLayout = true;
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}
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if (shouldInflateLayout) {
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inflateLayout();
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}
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}
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private void inflateLayout() {
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removeAllViews();
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LayoutInflater.from(getContext()).inflate(mLayout, this);
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final int N = mInflateListeners.size();
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for (int i = 0; i < N; i++) {
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mInflateListeners.get(i).onInflated(getChildAt(0));
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}
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}
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public void addInflateListener(InflateListener listener) {
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mInflateListeners.add(listener);
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listener.onInflated(getChildAt(0));
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}
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public interface InflateListener {
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/**
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* Called whenever a new view is inflated.
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*/
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void onInflated(View v);
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}
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}
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