public KeyguardServiceDelegate(Context context, LockPatternUtils lockPatternUtils) {
Intent intent = new Intent();
intent.setClassName(KEYGUARD_PACKAGE, KEYGUARD_CLASS);
mScrim = createScrim(context);
if (!context.bindServiceAsUser(
intent, mKeyguardConnection, Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
if (DEBUG) Log.v(TAG, "*** Keyguard: can't bind to " + KEYGUARD_CLASS);
} else {
if (DEBUG) Log.v(TAG, "*** Keyguard started");
}
}
public void bindService(Context context) {
Intent intent = new Intent();
intent.setClassName(KEYGUARD_PACKAGE, KEYGUARD_CLASS);
if (!context.bindServiceAsUser(
intent, mKeyguardConnection, Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
Log.v(TAG, "*** Keyguard: can't bind to " + KEYGUARD_CLASS);
mKeyguardState.showing = false;
mKeyguardState.showingAndNotOccluded = false;
mKeyguardState.secure = false;
mKeyguardState.deviceHasKeyguard = false;
hideScrim();
} else {
if (DEBUG) Log.v(TAG, "*** Keyguard started");
}
}
/** @hide */
@WorkerThread
public static KeyChainConnection bindAsUser(@NonNull Context context, UserHandle user)
throws InterruptedException {
if (context == null) {
throw new NullPointerException("context == null");
}
ensureNotOnMainThread(context);
final BlockingQueue<IKeyChainService> q = new LinkedBlockingQueue<IKeyChainService>(1);
ServiceConnection keyChainServiceConnection =
new ServiceConnection() {
volatile boolean mConnectedAtLeastOnce = false;
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
if (!mConnectedAtLeastOnce) {
mConnectedAtLeastOnce = true;
try {
q.put(IKeyChainService.Stub.asInterface(service));
} catch (InterruptedException e) {
// will never happen, since the queue starts with one available slot
}
}
}
@Override
public void onServiceDisconnected(ComponentName name) {}
};
Intent intent = new Intent(IKeyChainService.class.getName());
ComponentName comp = intent.resolveSystemService(context.getPackageManager(), 0);
intent.setComponent(comp);
boolean isBound =
context.bindServiceAsUser(
intent, keyChainServiceConnection, Context.BIND_AUTO_CREATE, user);
if (!isBound) {
throw new AssertionError("could not bind to KeyChainService");
}
return new KeyChainConnection(context, keyChainServiceConnection, q.take());
}
/** Version of registerService that takes the name of a service component to bind to. */
private void registerService(final ComponentName name, final int userid) {
if (DEBUG) Slog.v(TAG, "registerService: " + name + " u=" + userid);
synchronized (mMutex) {
final String servicesBindingTag = name.toString() + "/" + userid;
if (mServicesBinding.contains(servicesBindingTag)) {
// stop registering this thing already! we're working on it
return;
}
mServicesBinding.add(servicesBindingTag);
final int N = mServices.size();
for (int i = N - 1; i >= 0; i--) {
final ManagedServiceInfo info = mServices.get(i);
if (name.equals(info.component) && info.userid == userid) {
// cut old connections
if (DEBUG) Slog.v(TAG, " disconnecting old " + getCaption() + ": " + info.service);
removeServiceLocked(i);
if (info.connection != null) {
mContext.unbindService(info.connection);
}
}
}
Intent intent = new Intent(mConfig.serviceInterface);
intent.setComponent(name);
intent.putExtra(Intent.EXTRA_CLIENT_LABEL, mConfig.clientLabel);
final PendingIntent pendingIntent =
PendingIntent.getActivity(mContext, 0, new Intent(mConfig.settingsAction), 0);
intent.putExtra(Intent.EXTRA_CLIENT_INTENT, pendingIntent);
ApplicationInfo appInfo = null;
try {
appInfo = mContext.getPackageManager().getApplicationInfo(name.getPackageName(), 0);
} catch (PackageManager.NameNotFoundException e) {
// Ignore if the package doesn't exist we won't be able to bind to the service.
}
final int targetSdkVersion =
appInfo != null ? appInfo.targetSdkVersion : Build.VERSION_CODES.BASE;
try {
if (DEBUG) Slog.v(TAG, "binding: " + intent);
if (!mContext.bindServiceAsUser(
intent,
new ServiceConnection() {
IInterface mService;
@Override
public void onServiceConnected(ComponentName name, IBinder binder) {
boolean added = false;
ManagedServiceInfo info = null;
synchronized (mMutex) {
mServicesBinding.remove(servicesBindingTag);
try {
mService = asInterface(binder);
info =
newServiceInfo(
mService, name, userid, false /*isSystem*/, this, targetSdkVersion);
binder.linkToDeath(info, 0);
added = mServices.add(info);
} catch (RemoteException e) {
// already dead
}
}
if (added) {
onServiceAdded(info);
}
}
@Override
public void onServiceDisconnected(ComponentName name) {
Slog.v(TAG, getCaption() + " connection lost: " + name);
}
},
Context.BIND_AUTO_CREATE,
new UserHandle(userid))) {
mServicesBinding.remove(servicesBindingTag);
Slog.w(TAG, "Unable to bind " + getCaption() + " service: " + intent);
return;
}
} catch (SecurityException ex) {
Slog.e(TAG, "Unable to bind " + getCaption() + " service: " + intent, ex);
return;
}
}
}