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appops: Load the app list asynchronously
The AppList is pretty big and it is loading in the UI thread. This is noticeable even on high-end chips and there is a definite possibility that it throws an ANR on lower-end ones. This patchset adds an asynchronous loader and updates the privacy guard to use it. Change-Id: I81f3fb64604af07a351f8cbdfffa7454389e2cee
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src/com/android/settings/privacyguard/AppInfoLoader.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| /* | ||
| * Copyright (C) 2015 The CyanogenMod 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.settings.privacyguard; | ||
|
|
||
| import android.app.AppOpsManager; | ||
| import android.content.AsyncTaskLoader; | ||
| import android.content.Context; | ||
| import android.content.pm.ApplicationInfo; | ||
| import android.content.pm.PackageManager; | ||
| import android.content.pm.PackageInfo; | ||
|
|
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| import com.android.settings.privacyguard.PrivacyGuardManager.AppInfo; | ||
|
|
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| import java.util.ArrayList; | ||
| import java.util.Collections; | ||
| import java.util.Comparator; | ||
| import java.util.List; | ||
|
|
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| /** | ||
| * An asynchronous loader implementation that loads AppInfo structures. | ||
| */ | ||
| /* package */ class AppInfoLoader extends AsyncTaskLoader<List<AppInfo>> { | ||
| private PackageManager mPm; | ||
| private boolean mShowSystemApps; | ||
| private AppOpsManager mAppOps; | ||
|
|
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| public AppInfoLoader(Context context, boolean showSystemApps) { | ||
| super(context); | ||
| mPm = context.getPackageManager(); | ||
| mAppOps = (AppOpsManager)context.getSystemService(Context.APP_OPS_SERVICE); | ||
| mShowSystemApps = showSystemApps; | ||
| } | ||
|
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| @Override | ||
| public List<AppInfo> loadInBackground() { | ||
| return loadInstalledApps(); | ||
| } | ||
|
|
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| @Override | ||
| public void onStartLoading() { | ||
| forceLoad(); | ||
| } | ||
|
|
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| @Override | ||
| public void onStopLoading() { | ||
| cancelLoad(); | ||
| } | ||
|
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| @Override | ||
| protected void onReset() { | ||
| cancelLoad(); | ||
| } | ||
|
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| /** | ||
| * Uses the package manager to query for all currently installed apps | ||
| * for the list. | ||
| * | ||
| * @return the complete List off installed applications (@code PrivacyGuardAppInfo) | ||
| */ | ||
| private List<AppInfo> loadInstalledApps() { | ||
| List<AppInfo> apps = new ArrayList<AppInfo>(); | ||
| List<PackageInfo> packages = mPm.getInstalledPackages( | ||
| PackageManager.GET_PERMISSIONS | PackageManager.GET_SIGNATURES); | ||
|
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| for (PackageInfo info : packages) { | ||
| final ApplicationInfo appInfo = info.applicationInfo; | ||
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| // skip all system apps if they shall not be included | ||
| if (!mShowSystemApps && (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { | ||
| continue; | ||
| } | ||
|
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| AppInfo app = new AppInfo(); | ||
| app.title = appInfo.loadLabel(mPm).toString(); | ||
| app.packageName = info.packageName; | ||
| app.enabled = appInfo.enabled; | ||
| app.uid = info.applicationInfo.uid; | ||
| app.privacyGuardEnabled = mAppOps.getPrivacyGuardSettingForPackage( | ||
| app.uid, app.packageName); | ||
| apps.add(app); | ||
| } | ||
|
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| // sort the apps by their enabled state, then by title | ||
| Collections.sort(apps, new Comparator<AppInfo>() { | ||
| @Override | ||
| public int compare(AppInfo lhs, AppInfo rhs) { | ||
| if (lhs.enabled != rhs.enabled) { | ||
| return lhs.enabled ? -1 : 1; | ||
| } | ||
| return lhs.title.compareToIgnoreCase(rhs.title); | ||
| } | ||
| }); | ||
|
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| return apps; | ||
| } | ||
|
|
||
| } |
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