Examples with Nullable android.annotation.Nullable used on opensource projects

Example 6 with Nullable

use of android.annotation.Nullable in project android_frameworks_base by ResurrectionRemix.

the class ContentProviderClient method openTypedAssetFileDescriptor.

/** See {@link ContentProvider#openTypedAssetFile ContentProvider.openTypedAssetFile} */
@Nullable
public final AssetFileDescriptor openTypedAssetFileDescriptor(@NonNull Uri uri, @NonNull String mimeType, @Nullable Bundle opts, @Nullable CancellationSignal signal) throws RemoteException, FileNotFoundException {
    Preconditions.checkNotNull(uri, "uri");
    Preconditions.checkNotNull(mimeType, "mimeType");
    beforeRemote();
    try {
        ICancellationSignal remoteSignal = null;
        if (signal != null) {
            signal.throwIfCanceled();
            remoteSignal = mContentProvider.createCancellationSignal();
            signal.setRemote(remoteSignal);
        }
        return mContentProvider.openTypedAssetFile(mPackageName, uri, mimeType, opts, remoteSignal);
    } catch (DeadObjectException e) {
        if (!mStable) {
            mContentResolver.unstableProviderDied(mContentProvider);
        }
        throw e;
    } finally {
        afterRemote();
    }
}

Example 7 with Nullable

use of android.annotation.Nullable in project android_frameworks_base by ResurrectionRemix.

the class ThemedResourceCache method getThemedLocked.

/**
     * Returns the cached data for the specified theme, optionally creating a
     * new entry if one does not already exist.
     *
     * @param t the theme for which to return cached data
     * @param create {@code true} to create an entry if one does not already
     *               exist, {@code false} otherwise
     * @return the cached data for the theme, or {@code null} if the cache is
     *         empty and {@code create} was {@code false}
     */
@Nullable
private LongSparseArray<WeakReference<T>> getThemedLocked(@Nullable Theme t, boolean create) {
    if (t == null) {
        if (mNullThemedEntries == null && create) {
            mNullThemedEntries = new LongSparseArray<>(1);
        }
        return mNullThemedEntries;
    }
    if (mThemedEntries == null) {
        if (create) {
            mThemedEntries = new ArrayMap<>(1);
        } else {
            return null;
        }
    }
    final ThemeKey key = t.getKey();
    LongSparseArray<WeakReference<T>> cache = mThemedEntries.get(key);
    if (cache == null && create) {
        cache = new LongSparseArray<>(1);
        final ThemeKey keyClone = key.clone();
        mThemedEntries.put(keyClone, cache);
    }
    return cache;
}

Example 8 with Nullable

use of android.annotation.Nullable in project android_frameworks_base by ResurrectionRemix.

the class CryptoHelper method decryptBundle.

@Nullable
/* default */
Bundle decryptBundle(@NonNull Bundle bundle) throws GeneralSecurityException {
    Preconditions.checkNotNull(bundle, "Cannot decrypt null bundle.");
    byte[] iv = bundle.getByteArray(KEY_IV);
    byte[] encryptedBytes = bundle.getByteArray(KEY_CIPHER);
    byte[] mac = bundle.getByteArray(KEY_MAC);
    if (!verifyMac(encryptedBytes, iv, mac)) {
        Log.w(TAG, "Escrow mac mismatched!");
        return null;
    }
    IvParameterSpec ivSpec = new IvParameterSpec(iv);
    Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM);
    cipher.init(Cipher.DECRYPT_MODE, mEncryptionKey, ivSpec);
    byte[] decryptedBytes = cipher.doFinal(encryptedBytes);
    Parcel decryptedParcel = Parcel.obtain();
    decryptedParcel.unmarshall(decryptedBytes, 0, decryptedBytes.length);
    decryptedParcel.setDataPosition(0);
    Bundle decryptedBundle = new Bundle();
    decryptedBundle.readFromParcel(decryptedParcel);
    decryptedParcel.recycle();
    return decryptedBundle;
}

Example 9 with Nullable

use of android.annotation.Nullable in project android_frameworks_base by ResurrectionRemix.

the class UserState method getPrintServices.

@Nullable
public List<PrintServiceInfo> getPrintServices(int selectionFlags) {
    synchronized (mLock) {
        List<PrintServiceInfo> selectedServices = null;
        final int installedServiceCount = mInstalledServices.size();
        for (int i = 0; i < installedServiceCount; i++) {
            PrintServiceInfo installedService = mInstalledServices.get(i);
            ComponentName componentName = new ComponentName(installedService.getResolveInfo().serviceInfo.packageName, installedService.getResolveInfo().serviceInfo.name);
            // Update isEnabled under the same lock the final returned list is created
            installedService.setIsEnabled(mActiveServices.containsKey(componentName));
            if (installedService.isEnabled()) {
                if ((selectionFlags & PrintManager.ENABLED_SERVICES) == 0) {
                    continue;
                }
            } else {
                if ((selectionFlags & PrintManager.DISABLED_SERVICES) == 0) {
                    continue;
                }
            }
            if (selectedServices == null) {
                selectedServices = new ArrayList<>();
            }
            selectedServices.add(installedService);
        }
        return selectedServices;
    }
}

Example 10 with Nullable

use of android.annotation.Nullable in project android_frameworks_base by ResurrectionRemix.

the class InputManagerService method getKeyboardLayoutForInputDevice.

// Binder call
@Override
@Nullable
public KeyboardLayout getKeyboardLayoutForInputDevice(InputDeviceIdentifier identifier, InputMethodInfo imeInfo, InputMethodSubtype imeSubtype) {
    InputMethodSubtypeHandle handle = new InputMethodSubtypeHandle(imeInfo, imeSubtype);
    String key = getLayoutDescriptor(identifier);
    final String keyboardLayoutDescriptor;
    synchronized (mDataStore) {
        keyboardLayoutDescriptor = mDataStore.getKeyboardLayout(key, handle);
    }
    if (keyboardLayoutDescriptor == null) {
        return null;
    }
    final KeyboardLayout[] result = new KeyboardLayout[1];
    visitKeyboardLayout(keyboardLayoutDescriptor, new KeyboardLayoutVisitor() {

        @Override
        public void visitKeyboardLayout(Resources resources, int keyboardLayoutResId, KeyboardLayout layout) {
            result[0] = layout;
        }
    });
    if (result[0] == null) {
        Slog.w(TAG, "Could not get keyboard layout with descriptor '" + keyboardLayoutDescriptor + "'.");
    }
    return result[0];
}