93f945d516
The bottom list flashes because it takes some time to create a DomainAppPreference, where each perference takes around 6ms to load an icon. When there are, that say, 30 apps installed, then it will take around 180ms to be ready, which introduces the flashing issue. In order to tackle icon loading, this CL applies the icon cache mechanism to speed up the loading time. Fixes: 222981986 Test: robotest Change-Id: Ia8f7cbf5af5ea9f694c352ea40ccca47bedb175c
95 lines
3.2 KiB
Java
95 lines
3.2 KiB
Java
/*
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* Copyright (C) 2018 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.settings.applications.managedomainurls;
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import android.content.Context;
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import android.content.pm.verify.domain.DomainVerificationManager;
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import android.content.pm.verify.domain.DomainVerificationUserState;
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import android.graphics.drawable.Drawable;
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import androidx.preference.PreferenceViewHolder;
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import com.android.settings.R;
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import com.android.settings.applications.intentpicker.IntentPickerUtils;
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import com.android.settingslib.applications.AppUtils;
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import com.android.settingslib.applications.ApplicationsState.AppEntry;
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import com.android.settingslib.utils.ThreadUtils;
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import com.android.settingslib.widget.AppPreference;
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public class DomainAppPreference extends AppPreference {
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private Drawable mCacheIcon;
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private final AppEntry mEntry;
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private final DomainVerificationManager mDomainVerificationManager;
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public DomainAppPreference(final Context context, AppEntry entry) {
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super(context);
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mDomainVerificationManager = context.getSystemService(DomainVerificationManager.class);
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mEntry = entry;
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mEntry.ensureLabel(getContext());
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mCacheIcon = AppUtils.getIconFromCache(mEntry);
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setState();
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}
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public void reuse() {
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setState();
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notifyChanged();
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}
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public AppEntry getEntry() {
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return mEntry;
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}
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private void setState() {
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setTitle(mEntry.label);
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if (mCacheIcon != null) {
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setIcon(mCacheIcon);
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} else {
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setIcon(R.drawable.empty_icon);
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}
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setSummary(getDomainsSummary(mEntry.info.packageName));
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}
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private CharSequence getDomainsSummary(String packageName) {
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return getContext().getText(isLinkHandlingAllowed(packageName)
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? R.string.app_link_open_always : R.string.app_link_open_never);
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}
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private boolean isLinkHandlingAllowed(String packageName) {
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final DomainVerificationUserState userState =
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IntentPickerUtils.getDomainVerificationUserState(mDomainVerificationManager,
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packageName);
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return userState == null ? false : userState.isLinkHandlingAllowed();
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}
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@Override
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public void onBindViewHolder(PreferenceViewHolder view) {
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if (mCacheIcon == null) {
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ThreadUtils.postOnBackgroundThread(() -> {
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final Drawable icon = AppUtils.getIcon(getContext(), mEntry);
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ThreadUtils.postOnMainThread(() -> {
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setIcon(icon);
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mCacheIcon = icon;
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});
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});
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}
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super.onBindViewHolder(view);
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}
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}
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