115 lines
4.2 KiB
Java
115 lines
4.2 KiB
Java
/*
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* Copyright (C) 2009 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.wallpaper.livepicker;
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import android.app.WallpaperInfo;
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import android.app.WallpaperManager;
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import android.content.ComponentName;
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import android.content.Intent;
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import android.content.pm.ApplicationInfo;
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import android.content.pm.PackageManager;
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import android.content.pm.ResolveInfo;
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import android.content.pm.ServiceInfo;
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import android.os.Bundle;
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import android.os.Parcelable;
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import android.service.wallpaper.WallpaperService;
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import android.text.TextUtils;
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import android.util.Log;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import org.xmlpull.v1.XmlPullParserException;
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import java.io.IOException;
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import java.util.List;
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public class LiveWallpaperChange extends LiveWallpaperPreview {
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private static final String TAG = "CHANGE_LIVE_WALLPAPER";
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private static final String KEY_ACTION_DELETE_LIVE_WALLPAPER = "action_delete_live_wallpaper";
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@Override
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protected void init() {
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Parcelable obj = getIntent().getParcelableExtra(
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WallpaperManager.EXTRA_LIVE_WALLPAPER_COMPONENT);
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if (obj == null || !(obj instanceof ComponentName)) {
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Log.w(TAG, "No LIVE_WALLPAPER_COMPONENT extra supplied");
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finish();
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return;
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}
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ComponentName comp = (ComponentName)obj;
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WallpaperInfo currentWallpaper = WallpaperManager.getInstance(this).getWallpaperInfo();
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// Get the information about this component. Implemented this way
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// to not allow us to direct the caller to a service that is not a
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// live wallpaper.
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Intent queryIntent = new Intent(WallpaperService.SERVICE_INTERFACE);
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queryIntent.setPackage(comp.getPackageName());
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List<ResolveInfo> list = getPackageManager().queryIntentServices(
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queryIntent, PackageManager.GET_META_DATA);
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if (list != null) {
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for (int i=0; i<list.size(); i++) {
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ResolveInfo ri = list.get(i);
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if (ri.serviceInfo.name.equals(comp.getClassName())) {
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WallpaperInfo info;
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try {
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info = new WallpaperInfo(this, ri);
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} catch (XmlPullParserException|IOException e) {
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Log.w(TAG, "Bad wallpaper " + ri.serviceInfo, e);
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finish();
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return;
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}
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initUI(info, getDeleteAction(ri.serviceInfo,
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(currentWallpaper == null) ? null : currentWallpaper.getServiceInfo()));
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return;
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}
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}
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}
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Log.w(TAG, "Not a live wallpaper: " + comp);
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finish();
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}
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@Nullable
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private String getDeleteAction(@NonNull ServiceInfo serviceInfo,
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@Nullable ServiceInfo currentService) {
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if (!isPackagePreInstalled(serviceInfo.applicationInfo)) {
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Log.d(TAG, "This wallpaper is not pre-installed: " + serviceInfo.name);
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return null;
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}
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// A currently set Live wallpaper should not be deleted.
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if (currentService != null && TextUtils.equals(serviceInfo.name, currentService.name)) {
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return null;
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}
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final Bundle metaData = serviceInfo.metaData;
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if (metaData != null) {
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return metaData.getString(KEY_ACTION_DELETE_LIVE_WALLPAPER);
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}
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return null;
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}
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private boolean isPackagePreInstalled(ApplicationInfo info) {
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if (info != null && (info.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
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return true;
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}
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return false;
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}
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}
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