android.os.Bundle#setDefusable ( )源码实例Demo

@Override
public void removePeriodicSync(Account account, String authority, Bundle extras) {
    Bundle.setDefusable(extras, true);
    if (account == null) {
        throw new IllegalArgumentException("Account must not be null");
    }
    if (TextUtils.isEmpty(authority)) {
        throw new IllegalArgumentException("Authority must not be empty");
    }
    mContext.enforceCallingOrSelfPermission(Manifest.permission.WRITE_SYNC_SETTINGS,
            "no permission to write the sync settings");

    final int callingUid = Binder.getCallingUid();

    int userId = UserHandle.getCallingUserId();
    long identityToken = clearCallingIdentity();
    try {
        getSyncManager()
                .removePeriodicSync(
                        new SyncStorageEngine.EndPoint(account, authority, userId),
                        extras, "removePeriodicSync() by uid=" + callingUid);
    } finally {
        restoreCallingIdentity(identityToken);
    }
}
 

@Override
public void putCache(String packageName, Uri key, Bundle value, int userId) {
    Bundle.setDefusable(value, true);
    enforceCrossUserPermission(userId, TAG);
    mContext.enforceCallingOrSelfPermission(android.Manifest.permission.CACHE_CONTENT, TAG);
    mContext.getSystemService(AppOpsManager.class).checkPackage(Binder.getCallingUid(),
            packageName);

    final String providerPackageName = getProviderPackageName(key);
    final Pair<String, Uri> fullKey = Pair.create(packageName, key);

    synchronized (mCache) {
        final ArrayMap<Pair<String, Uri>, Bundle> cache = findOrCreateCacheLocked(userId,
                providerPackageName);
        if (value != null) {
            cache.put(fullKey, value);
        } else {
            cache.remove(fullKey);
        }
    }
}
 

/**
 * Call a provider-defined method.  This can be used to implement
 * read or write interfaces which are cheaper than using a Cursor and/or
 * do not fit into the traditional table model.
 *
 * @param method provider-defined method name to call.  Opaque to
 *   framework, but must be non-null.
 * @param arg provider-defined String argument.  May be null.
 * @param extras provider-defined Bundle argument.  May be null.
 * @return a result Bundle, possibly null.  Will be null if the ContentProvider
 *   does not implement call.
 * @throws NullPointerException if uri or method is null
 * @throws IllegalArgumentException if uri is not known
 */
public final @Nullable Bundle call(@NonNull Uri uri, @NonNull String method,
        @Nullable String arg, @Nullable Bundle extras) {
    Preconditions.checkNotNull(uri, "uri");
    Preconditions.checkNotNull(method, "method");
    IContentProvider provider = acquireProvider(uri);
    if (provider == null) {
        throw new IllegalArgumentException("Unknown URI " + uri);
    }
    try {
        final Bundle res = provider.call(mPackageName, method, arg, extras);
        Bundle.setDefusable(res, true);
        return res;
    } catch (RemoteException e) {
        // Arbitrary and not worth documenting, as Activity
        // Manager will kill this process shortly anyway.
        return null;
    } finally {
        releaseProvider(provider);
    }
}
 

@Override
@RequiresPermission(android.Manifest.permission.CACHE_CONTENT)
public void putCache(String packageName, Uri key, Bundle value, int userId) {
    Bundle.setDefusable(value, true);
    enforceCrossUserPermission(userId, TAG);
    mContext.enforceCallingOrSelfPermission(android.Manifest.permission.CACHE_CONTENT, TAG);
    mContext.getSystemService(AppOpsManager.class).checkPackage(Binder.getCallingUid(),
            packageName);

    final String providerPackageName = getProviderPackageName(key);
    final Pair<String, Uri> fullKey = Pair.create(packageName, key);

    synchronized (mCache) {
        final ArrayMap<Pair<String, Uri>, Bundle> cache = findOrCreateCacheLocked(userId,
                providerPackageName);
        if (value != null) {
            cache.put(fullKey, value);
        } else {
            cache.remove(fullKey);
        }
    }
}
 

@Override
public void requestSync(Account account, String authority, Bundle extras) {
    Bundle.setDefusable(extras, true);
    ContentResolver.validateSyncExtrasBundle(extras);
    int userId = UserHandle.getCallingUserId();
    int uId = Binder.getCallingUid();

    validateExtras(uId, extras);
    final int syncExemption = getSyncExemptionAndCleanUpExtrasForCaller(uId, extras);

    // This makes it so that future permission checks will be in the context of this
    // process rather than the caller's process. We will restore this before returning.
    long identityToken = clearCallingIdentity();
    try {
        SyncManager syncManager = getSyncManager();
        if (syncManager != null) {
            syncManager.scheduleSync(account, userId, uId, authority, extras,
                    SyncStorageEngine.AuthorityInfo.UNDEFINED,
                    syncExemption);
        }
    } finally {
        restoreCallingIdentity(identityToken);
    }
}
 

@Override
public void putCache(String packageName, Uri key, Bundle value, int userId) {
    Bundle.setDefusable(value, true);
    enforceCrossUserPermission(userId, TAG);
    mContext.enforceCallingOrSelfPermission(android.Manifest.permission.CACHE_CONTENT, TAG);
    mContext.getSystemService(AppOpsManager.class).checkPackage(Binder.getCallingUid(),
            packageName);

    final String providerPackageName = getProviderPackageName(key);
    final Pair<String, Uri> fullKey = Pair.create(packageName, key);

    synchronized (mCache) {
        final ArrayMap<Pair<String, Uri>, Bundle> cache = findOrCreateCacheLocked(userId,
                providerPackageName);
        if (value != null) {
            cache.put(fullKey, value);
        } else {
            cache.remove(fullKey);
        }
    }
}
 

@Override
public void setApplicationRestrictions(String packageName, Bundle restrictions,
        int userId) {
    checkSystemOrRoot("set application restrictions");
    if (restrictions != null) {
        restrictions.setDefusable(true);
    }
    synchronized (mAppRestrictionsLock) {
        if (restrictions == null || restrictions.isEmpty()) {
            cleanAppRestrictionsForPackageLAr(packageName, userId);
        } else {
            // Write the restrictions to XML
            writeApplicationRestrictionsLAr(packageName, restrictions, userId);
        }
    }

    // Notify package of changes via an intent - only sent to explicitly registered receivers.
    Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED);
    changeIntent.setPackage(packageName);
    changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
    mContext.sendBroadcastAsUser(changeIntent, UserHandle.of(userId));
}
 

/**
 * Turns a slice Uri into slice content.
 *
 * @param uri The URI to a slice provider
 * @param supportedSpecs List of supported specs.
 * @return The Slice provided by the app or null if none is given.
 * @see Slice
 */
public @Nullable Slice bindSlice(@NonNull Uri uri, @NonNull Set<SliceSpec> supportedSpecs) {
    Preconditions.checkNotNull(uri, "uri");
    ContentResolver resolver = mContext.getContentResolver();
    try (ContentProviderClient provider = resolver.acquireUnstableContentProviderClient(uri)) {
        if (provider == null) {
            Log.w(TAG, String.format("Unknown URI: %s", uri));
            return null;
        }
        Bundle extras = new Bundle();
        extras.putParcelable(SliceProvider.EXTRA_BIND_URI, uri);
        extras.putParcelableArrayList(SliceProvider.EXTRA_SUPPORTED_SPECS,
                new ArrayList<>(supportedSpecs));
        final Bundle res = provider.call(SliceProvider.METHOD_SLICE, null, extras);
        Bundle.setDefusable(res, true);
        if (res == null) {
            return null;
        }
        return res.getParcelable(SliceProvider.EXTRA_SLICE);
    } catch (RemoteException e) {
        // Arbitrary and not worth documenting, as Activity
        // Manager will kill this process shortly anyway.
        return null;
    }
}
 

/**
 * Call a provider-defined method.  This can be used to implement
 * read or write interfaces which are cheaper than using a Cursor and/or
 * do not fit into the traditional table model.
 *
 * @param method provider-defined method name to call.  Opaque to
 *   framework, but must be non-null.
 * @param arg provider-defined String argument.  May be null.
 * @param extras provider-defined Bundle argument.  May be null.
 * @return a result Bundle, possibly null.  Will be null if the ContentProvider
 *   does not implement call.
 * @throws NullPointerException if uri or method is null
 * @throws IllegalArgumentException if uri is not known
 */
public final @Nullable Bundle call(@NonNull Uri uri, @NonNull String method,
        @Nullable String arg, @Nullable Bundle extras) {
    Preconditions.checkNotNull(uri, "uri");
    Preconditions.checkNotNull(method, "method");
    IContentProvider provider = acquireProvider(uri);
    if (provider == null) {
        throw new IllegalArgumentException("Unknown URI " + uri);
    }
    try {
        final Bundle res = provider.call(mPackageName, method, arg, extras);
        Bundle.setDefusable(res, true);
        return res;
    } catch (RemoteException e) {
        // Arbitrary and not worth documenting, as Activity
        // Manager will kill this process shortly anyway.
        return null;
    } finally {
        releaseProvider(provider);
    }
}
 

@Override
public AssetFileDescriptor openTypedAssetFile(String callingPkg, Uri uri, String mimeType,
        Bundle opts, ICancellationSignal cancellationSignal) throws FileNotFoundException {
    Bundle.setDefusable(opts, true);
    uri = validateIncomingUri(uri);
    uri = maybeGetUriWithoutUserId(uri);
    enforceFilePermission(callingPkg, uri, "r", null);
    final String original = setCallingPackage(callingPkg);
    try {
        return ContentProvider.this.openTypedAssetFile(
                uri, mimeType, opts, CancellationSignal.fromTransport(cancellationSignal));
    } finally {
        setCallingPackage(original);
    }
}
 

/** Old API. Schedule periodic sync with default flexMillis time. */
@Override
public void addPeriodicSync(Account account, String authority, Bundle extras,
                            long pollFrequency) {
    Bundle.setDefusable(extras, true);
    if (account == null) {
        throw new IllegalArgumentException("Account must not be null");
    }
    if (TextUtils.isEmpty(authority)) {
        throw new IllegalArgumentException("Authority must not be empty.");
    }
    mContext.enforceCallingOrSelfPermission(Manifest.permission.WRITE_SYNC_SETTINGS,
            "no permission to write the sync settings");

    int userId = UserHandle.getCallingUserId();

    pollFrequency = clampPeriod(pollFrequency);
    long defaultFlex = SyncStorageEngine.calculateDefaultFlexTime(pollFrequency);

    long identityToken = clearCallingIdentity();
    try {
        SyncStorageEngine.EndPoint info =
                new SyncStorageEngine.EndPoint(account, authority, userId);
        getSyncManager().updateOrAddPeriodicSync(info, pollFrequency,
                defaultFlex, extras);
    } finally {
        restoreCallingIdentity(identityToken);
    }
}
 

@Override
public Bundle call(
        String callingPkg, String method, @Nullable String arg, @Nullable Bundle extras) {
    Bundle.setDefusable(extras, true);
    final String original = setCallingPackage(callingPkg);
    try {
        return ContentProvider.this.call(method, arg, extras);
    } finally {
        setCallingPackage(original);
    }
}
 

@Override
public AssetFileDescriptor openTypedAssetFile(String callingPkg, Uri uri, String mimeType,
        Bundle opts, ICancellationSignal cancellationSignal) throws FileNotFoundException {
    Bundle.setDefusable(opts, true);
    validateIncomingUri(uri);
    uri = maybeGetUriWithoutUserId(uri);
    enforceFilePermission(callingPkg, uri, "r", null);
    final String original = setCallingPackage(callingPkg);
    try {
        return ContentProvider.this.openTypedAssetFile(
                uri, mimeType, opts, CancellationSignal.fromTransport(cancellationSignal));
    } finally {
        setCallingPackage(original);
    }
}
 

@Override
public Bundle call(
        String callingPkg, String method, @Nullable String arg, @Nullable Bundle extras) {
    Bundle.setDefusable(extras, true);
    final String original = setCallingPackage(callingPkg);
    try {
        return ContentProvider.this.call(method, arg, extras);
    } finally {
        setCallingPackage(original);
    }
}
 

/** Old API. Schedule periodic sync with default flexMillis time. */
@Override
public void addPeriodicSync(Account account, String authority, Bundle extras,
                            long pollFrequency) {
    Bundle.setDefusable(extras, true);
    if (account == null) {
        throw new IllegalArgumentException("Account must not be null");
    }
    if (TextUtils.isEmpty(authority)) {
        throw new IllegalArgumentException("Authority must not be empty.");
    }
    mContext.enforceCallingOrSelfPermission(Manifest.permission.WRITE_SYNC_SETTINGS,
            "no permission to write the sync settings");

    validateExtras(Binder.getCallingUid(), extras);

    int userId = UserHandle.getCallingUserId();

    pollFrequency = clampPeriod(pollFrequency);
    long defaultFlex = SyncStorageEngine.calculateDefaultFlexTime(pollFrequency);

    long identityToken = clearCallingIdentity();
    try {
        SyncStorageEngine.EndPoint info =
                new SyncStorageEngine.EndPoint(account, authority, userId);
        getSyncManager().updateOrAddPeriodicSync(info, pollFrequency,
                defaultFlex, extras);
    } finally {
        restoreCallingIdentity(identityToken);
    }
}
 

@Override
public void removePeriodicSync(Account account, String authority, Bundle extras) {
    Bundle.setDefusable(extras, true);
    if (account == null) {
        throw new IllegalArgumentException("Account must not be null");
    }
    if (TextUtils.isEmpty(authority)) {
        throw new IllegalArgumentException("Authority must not be empty");
    }
    mContext.enforceCallingOrSelfPermission(Manifest.permission.WRITE_SYNC_SETTINGS,
            "no permission to write the sync settings");

    validateExtras(Binder.getCallingUid(), extras);

    final int callingUid = Binder.getCallingUid();

    int userId = UserHandle.getCallingUserId();
    long identityToken = clearCallingIdentity();
    try {
        getSyncManager()
                .removePeriodicSync(
                        new SyncStorageEngine.EndPoint(account, authority, userId),
                        extras, "removePeriodicSync() by uid=" + callingUid);
    } finally {
        restoreCallingIdentity(identityToken);
    }
}
 

/** Old API. Schedule periodic sync with default flexMillis time. */
@Override
public void addPeriodicSync(Account account, String authority, Bundle extras,
                            long pollFrequency) {
    Bundle.setDefusable(extras, true);
    if (account == null) {
        throw new IllegalArgumentException("Account must not be null");
    }
    if (TextUtils.isEmpty(authority)) {
        throw new IllegalArgumentException("Authority must not be empty.");
    }
    mContext.enforceCallingOrSelfPermission(Manifest.permission.WRITE_SYNC_SETTINGS,
            "no permission to write the sync settings");

    validateExtras(Binder.getCallingUid(), extras);

    int userId = UserHandle.getCallingUserId();

    pollFrequency = clampPeriod(pollFrequency);
    long defaultFlex = SyncStorageEngine.calculateDefaultFlexTime(pollFrequency);

    long identityToken = clearCallingIdentity();
    try {
        SyncStorageEngine.EndPoint info =
                new SyncStorageEngine.EndPoint(account, authority, userId);
        getSyncManager().updateOrAddPeriodicSync(info, pollFrequency,
                defaultFlex, extras);
    } finally {
        restoreCallingIdentity(identityToken);
    }
}
 

@Override
public void removePeriodicSync(Account account, String authority, Bundle extras) {
    Bundle.setDefusable(extras, true);
    if (account == null) {
        throw new IllegalArgumentException("Account must not be null");
    }
    if (TextUtils.isEmpty(authority)) {
        throw new IllegalArgumentException("Authority must not be empty");
    }
    mContext.enforceCallingOrSelfPermission(Manifest.permission.WRITE_SYNC_SETTINGS,
            "no permission to write the sync settings");

    validateExtras(Binder.getCallingUid(), extras);

    final int callingUid = Binder.getCallingUid();

    int userId = UserHandle.getCallingUserId();
    long identityToken = clearCallingIdentity();
    try {
        getSyncManager()
                .removePeriodicSync(
                        new SyncStorageEngine.EndPoint(account, authority, userId),
                        extras, "removePeriodicSync() by uid=" + callingUid);
    } finally {
        restoreCallingIdentity(identityToken);
    }
}
 

private SyncRequest(Parcel in) {
    mExtras = Bundle.setDefusable(in.readBundle(), true);
    mSyncFlexTimeSecs = in.readLong();
    mSyncRunTimeSecs = in.readLong();
    mIsPeriodic = (in.readInt() != 0);
    mDisallowMetered = (in.readInt() != 0);
    mIsAuthority = (in.readInt() != 0);
    mIsExpedited = (in.readInt() != 0);
    mAccountToSync = in.readParcelable(null);
    mAuthority = in.readString();
}
 

/** @hide */
public ActivityOptions(Bundle opts) {
    // If the remote side sent us bad parcelables, they won't get the
    // results they want, which is their loss.
    opts.setDefusable(true);

    mPackageName = opts.getString(KEY_PACKAGE_NAME);
    try {
        mUsageTimeReport = opts.getParcelable(KEY_USAGE_TIME_REPORT);
    } catch (RuntimeException e) {
        Slog.w(TAG, e);
    }
    mLaunchBounds = opts.getParcelable(KEY_LAUNCH_BOUNDS);
    mAnimationType = opts.getInt(KEY_ANIM_TYPE);
    switch (mAnimationType) {
        case ANIM_CUSTOM:
            mCustomEnterResId = opts.getInt(KEY_ANIM_ENTER_RES_ID, 0);
            mCustomExitResId = opts.getInt(KEY_ANIM_EXIT_RES_ID, 0);
            mAnimationStartedListener = IRemoteCallback.Stub.asInterface(
                    opts.getBinder(KEY_ANIM_START_LISTENER));
            break;

        case ANIM_CUSTOM_IN_PLACE:
            mCustomInPlaceResId = opts.getInt(KEY_ANIM_IN_PLACE_RES_ID, 0);
            break;

        case ANIM_SCALE_UP:
        case ANIM_CLIP_REVEAL:
            mStartX = opts.getInt(KEY_ANIM_START_X, 0);
            mStartY = opts.getInt(KEY_ANIM_START_Y, 0);
            mWidth = opts.getInt(KEY_ANIM_WIDTH, 0);
            mHeight = opts.getInt(KEY_ANIM_HEIGHT, 0);
            break;

        case ANIM_THUMBNAIL_SCALE_UP:
        case ANIM_THUMBNAIL_SCALE_DOWN:
        case ANIM_THUMBNAIL_ASPECT_SCALE_UP:
        case ANIM_THUMBNAIL_ASPECT_SCALE_DOWN:
            // Unpackage the GraphicBuffer from the parceled thumbnail
            final GraphicBuffer buffer = opts.getParcelable(KEY_ANIM_THUMBNAIL);
            if (buffer != null) {
                mThumbnail = Bitmap.createHardwareBitmap(buffer);
            }
            mStartX = opts.getInt(KEY_ANIM_START_X, 0);
            mStartY = opts.getInt(KEY_ANIM_START_Y, 0);
            mWidth = opts.getInt(KEY_ANIM_WIDTH, 0);
            mHeight = opts.getInt(KEY_ANIM_HEIGHT, 0);
            mAnimationStartedListener = IRemoteCallback.Stub.asInterface(
                    opts.getBinder(KEY_ANIM_START_LISTENER));
            break;

        case ANIM_SCENE_TRANSITION:
            mTransitionReceiver = opts.getParcelable(KEY_TRANSITION_COMPLETE_LISTENER);
            mIsReturning = opts.getBoolean(KEY_TRANSITION_IS_RETURNING, false);
            mSharedElementNames = opts.getStringArrayList(KEY_TRANSITION_SHARED_ELEMENTS);
            mResultData = opts.getParcelable(KEY_RESULT_DATA);
            mResultCode = opts.getInt(KEY_RESULT_CODE);
            mExitCoordinatorIndex = opts.getInt(KEY_EXIT_COORDINATOR_INDEX);
            break;
    }
    mLockTaskMode = opts.getBoolean(KEY_LOCK_TASK_MODE, false);
    mLaunchDisplayId = opts.getInt(KEY_LAUNCH_DISPLAY_ID, INVALID_DISPLAY);
    mLaunchWindowingMode = opts.getInt(KEY_LAUNCH_WINDOWING_MODE, WINDOWING_MODE_UNDEFINED);
    mLaunchActivityType = opts.getInt(KEY_LAUNCH_ACTIVITY_TYPE, ACTIVITY_TYPE_UNDEFINED);
    mLaunchTaskId = opts.getInt(KEY_LAUNCH_TASK_ID, -1);
    mTaskOverlay = opts.getBoolean(KEY_TASK_OVERLAY, false);
    mTaskOverlayCanResume = opts.getBoolean(KEY_TASK_OVERLAY_CAN_RESUME, false);
    mAvoidMoveToFront = opts.getBoolean(KEY_AVOID_MOVE_TO_FRONT, false);
    mSplitScreenCreateMode = opts.getInt(KEY_SPLIT_SCREEN_CREATE_MODE,
            SPLIT_SCREEN_CREATE_MODE_TOP_OR_LEFT);
    mDisallowEnterPictureInPictureWhileLaunching = opts.getBoolean(
            KEY_DISALLOW_ENTER_PICTURE_IN_PICTURE_WHILE_LAUNCHING, false);
    if (opts.containsKey(KEY_ANIM_SPECS)) {
        Parcelable[] specs = opts.getParcelableArray(KEY_ANIM_SPECS);
        mAnimSpecs = new AppTransitionAnimationSpec[specs.length];
        for (int i = specs.length - 1; i >= 0; i--) {
            mAnimSpecs[i] = (AppTransitionAnimationSpec) specs[i];
        }
    }
    if (opts.containsKey(KEY_ANIMATION_FINISHED_LISTENER)) {
        mAnimationFinishedListener = IRemoteCallback.Stub.asInterface(
                opts.getBinder(KEY_ANIMATION_FINISHED_LISTENER));
    }
    mRotationAnimationHint = opts.getInt(KEY_ROTATION_ANIMATION_HINT);
    mAppVerificationBundle = opts.getBundle(KEY_INSTANT_APP_VERIFICATION_BUNDLE);
    if (opts.containsKey(KEY_SPECS_FUTURE)) {
        mSpecsFuture = IAppTransitionAnimationSpecsFuture.Stub.asInterface(opts.getBinder(
                KEY_SPECS_FUTURE));
    }
    mRemoteAnimationAdapter = opts.getParcelable(KEY_REMOTE_ANIMATION_ADAPTER);
}