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Android O PackageInstaller 解析
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Android O 8.0
1.src\com\android\packageinstaller\permission\mode\PermissionGroups.java
@Override
public List<PermissionGroup> loadInBackground() {
ArraySet<String> launcherPkgs = Utils.getLauncherPackages(getContext());
PermissionApps.PmCache pmCache = new PermissionApps.PmCache(
getContext().getPackageManager()); List<PermissionGroup> groups = new ArrayList<>();
Set<String> seenPermissions = new ArraySet<>(); PackageManager packageManager = getContext().getPackageManager();
List<PermissionGroupInfo> groupInfos = packageManager.getAllPermissionGroups(0); for (PermissionGroupInfo groupInfo : groupInfos) {
// Mare sure we respond to cancellation.
if (isLoadInBackgroundCanceled()) {
return Collections.emptyList();
} // 得到权限组里的所有权限
// Get the permissions in this group.
final List<PermissionInfo> groupPermissions;
try {
groupPermissions = packageManager.queryPermissionsByGroup(groupInfo.name, 0);
} catch (PackageManager.NameNotFoundException e) {
continue;
} boolean hasRuntimePermissions = false; // 查看某个权限组是否含有运行时权限
// Cache seen permissions and see if group has runtime permissions.
for (PermissionInfo groupPermission : groupPermissions) {
seenPermissions.add(groupPermission.name);
if ((groupPermission.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE)
== PermissionInfo.PROTECTION_DANGEROUS
&& (groupPermission.flags & PermissionInfo.FLAG_INSTALLED) != 0
&& (groupPermission.flags & PermissionInfo.FLAG_REMOVED) == 0) {
hasRuntimePermissions = true;
}
} // 权限组里没有运行时权限，我们不感兴趣，继续循环查询
// No runtime permissions - not interesting for us.
if (!hasRuntimePermissions) {
continue;
} // 如果权限组里含有运行时权限，则继续往下执行 // 获取权限组的label
CharSequence label = loadItemInfoLabel(groupInfo);
Drawable icon = loadItemInfoIcon(groupInfo); // 根据权限组 新建 PermissionApps 对象
PermissionApps permApps = new PermissionApps(getContext(), groupInfo.name, null,
pmCache);
permApps.refreshSync(); // 创建 PermissionGroup 对象
// Create the group and add to the list.
PermissionGroup group = new PermissionGroup(groupInfo.name,
groupInfo.packageName, label, icon, permApps.getTotalCount(launcherPkgs),
permApps.getGrantedCount(launcherPkgs));
groups.add(group);
} // 获取所有的安装包权限
// Make sure we add groups for lone runtime permissions.
List<PackageInfo> installedPackages = getContext().getPackageManager()
.getInstalledPackages(PackageManager.GET_PERMISSIONS); // We will filter out permissions that no package requests.
Set<String> requestedPermissions = new ArraySet<>();
for (PackageInfo installedPackage : installedPackages) {
if (installedPackage.requestedPermissions == null) {
continue;
}
// 将安装包请求的权限加入到 列表中
for (String requestedPermission : installedPackage.requestedPermissions) {
requestedPermissions.add(requestedPermission);
}
} for (PackageInfo installedPackage : installedPackages) {
if (installedPackage.permissions == null) {
continue;
} // 自定义的权限
for (PermissionInfo permissionInfo : installedPackage.permissions) {
// If we have handled this permission, no more work to do.
if (!seenPermissions.add(permissionInfo.name)) {
continue;
} // 关心的是 运行时权限
// We care only about installed runtime permissions.
if ((permissionInfo.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE)
!= PermissionInfo.PROTECTION_DANGEROUS
|| (permissionInfo.flags & PermissionInfo.FLAG_INSTALLED) == 0) {
continue;
} // 没有app使用那个自定义的权限
// If no app uses this permission,
if (!requestedPermissions.contains(permissionInfo.name)) {
continue;
} CharSequence label = loadItemInfoLabel(permissionInfo);
Drawable icon = loadItemInfoIcon(permissionInfo); PermissionApps permApps = new PermissionApps(getContext(), permissionInfo.name,
null, pmCache);
permApps.refreshSync(); // Create the group and add to the list.
PermissionGroup group = new PermissionGroup(permissionInfo.name,
permissionInfo.packageName, label, icon,
permApps.getTotalCount(launcherPkgs),
permApps.getGrantedCount(launcherPkgs));
groups.add(group);
}
} Collections.sort(groups);
return groups;
}
2.PermissionApps.java
/**
* Refresh the state and do not return until it finishes. Should not be called while an {@link
* #refresh async referesh} is in progress.
*/
public void refreshSync() {
mSkipUi = true;
createMap(loadPermissionApps());
}
3.
src\com\android\packageinstaller\permission\utils\EventLogger.java
/**
* For each permission there are four events. The events are in the order of
* #ALL_DANGEROUS_PERMISSIONS. The four events per permission are (in that order): "requested",
* "granted", "denied", and "revoked".
*/
public class EventLogger {
private static final String LOG_TAG = EventLogger.class.getSimpleName(); /** All dangerous permission names in the same order as the events in MetricsEvent */
private static final List<String> ALL_DANGEROUS_PERMISSIONS = Arrays.asList(
Manifest.permission.READ_CALENDAR,
Manifest.permission.WRITE_CALENDAR,
Manifest.permission.CAMERA,
Manifest.permission.READ_CONTACTS,
Manifest.permission.WRITE_CONTACTS,
Manifest.permission.GET_ACCOUNTS,
Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.ACCESS_COARSE_LOCATION,
Manifest.permission.RECORD_AUDIO,
Manifest.permission.READ_PHONE_STATE,
Manifest.permission.CALL_PHONE,
Manifest.permission.READ_CALL_LOG,
Manifest.permission.WRITE_CALL_LOG,
Manifest.permission.ADD_VOICEMAIL,
Manifest.permission.USE_SIP,
Manifest.permission.PROCESS_OUTGOING_CALLS,
Manifest.permission.READ_CELL_BROADCASTS,
Manifest.permission.BODY_SENSORS,
Manifest.permission.SEND_SMS,
Manifest.permission.RECEIVE_SMS,
Manifest.permission.READ_SMS,
Manifest.permission.RECEIVE_WAP_PUSH,
Manifest.permission.RECEIVE_MMS,
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.READ_PHONE_NUMBERS,
Manifest.permission.ANSWER_PHONE_CALLS,
Manifest.permission.ACCEPT_HANDOVER); private static final List<String> ALL_APPOP_PERMISSIONS = Arrays.asList(
Manifest.permission.ACCESS_NOTIFICATIONS,
Manifest.permission.SYSTEM_ALERT_WINDOW,
Manifest.permission.WRITE_SETTINGS,
Manifest.permission.REQUEST_INSTALL_PACKAGES); ...... }
4.
src\com\android\packageinstaller\permission\utils\Utils.java
public static final String OS_PKG = "android";
public static final String[] MODERN_PERMISSION_GROUPS = { // 目前平台支持的权限组
Manifest.permission_group.CALENDAR,
Manifest.permission_group.CAMERA,
Manifest.permission_group.CONTACTS,
Manifest.permission_group.LOCATION,
Manifest.permission_group.SENSORS,
Manifest.permission_group.SMS,
Manifest.permission_group.PHONE,
Manifest.permission_group.MICROPHONE,
Manifest.permission_group.STORAGE
};
private static final Intent LAUNCHER_INTENT = new Intent(Intent.ACTION_MAIN, null)
.addCategory(Intent.CATEGORY_LAUNCHER);
5.
DeviceUtils.java
public class DeviceUtils {
public static boolean isTelevision(Context context) { // 电视
int uiMode = context.getResources().getConfiguration().uiMode;
return (uiMode & Configuration.UI_MODE_TYPE_MASK) == Configuration.UI_MODE_TYPE_TELEVISION;
}
public static boolean isWear(final Context context) {// 穿戴设备
return context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_WATCH);
}
public static boolean isAuto(Context context) {// 汽车、自动设备
return context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE);
}
}
