Returns a Map of parameters to be used for a POST or PUT request. Can throw {@link AuthFailureError} as authentication may be required to provide the

@deprecated Use {@link #getBody()}.

Returns the retry policy that should be used for this request.

@return A tag for use with {@link TrafficStats#setThreadStatsTag(int)}

Returns the URL of this request.

Check how much usable space is available at a given path. @param path The path to check @return The space available in bytes

Initializes the disk cache. Note that this includes disk access so this should not be executed on the main/UI thread. By default an ImageCache does n

Loads the image for the view if it isn't already loaded. @param isInLayoutPass True if this was invoked from a layout pass, false otherwise.

Mark this request as having a response delivered on it. This can be used later in the request's lifetime for suppressing identical responses.

Returns a new unbuffered output stream to write the value at {@code index}. If the underlying output stream encounters errors when writing to the file

Opens the cache in {@code directory}, creating a cache if none exists there. @param directory a writable directory @param valueCount the number of va

Opens an {@link HttpURLConnection} with parameters. @param url @return an open connection @throws IOException

Parse date in RFC1123 format, and return its value as epoch

Subclasses must implement this to parse the raw network response and return an appropriate response type. This method will be called from a worker thr

暂停所有加载的任务 pause @since 3.6

Posts an error for the given request.

Puts the entry with the specified key into the cache. @param key The key to identify the entry by. @param entry The entry to cache.

Forces this dispatcher to quit immediately. If any requests are still in the queue, they are not guaranteed to be processed.

Creates a new journal that omits redundant information. This replaces the current journal if it exists.

Removes the specified key from the cache if it exists.

Detatches the bitmap container from the request and cancels the request if no one is left listening. @param container The container to remove from the

Annotates this request with an entry retrieved for it from cache. Used for cache coherency support. @return This Request object to allow for chaining

set database dir @param dbDir If dbDir is null or empty, use the app default db dir.

Set whether or not responses to this request should be cached. @return This Request object to allow for chaining.

Starts the dispatchers in this queue.

Reads the contents of an InputStream into a byte[].

Creates a cache entry for the specified data.

Writes the contents of this CacheHeader to the specified OutputStream.

Adds another ImageContainer to the list of those interested in the results of the request.

Mark this request as canceled. No callback will be delivered.

Commits this edit so it is visible to readers. This releases the edit lock so another edit may be started on the same key.

Converts Headers[] to Map<String, String>.

Called after a cache miss to compute a value for the corresponding key. Returns the computed value or null if no value can be computed. The default im

Create an {@link HttpURLConnection} for the specified {@code url}.

Creates the appropriate subclass of HttpUriRequest for passed in request.

Deletes the contents of {@code dir}. Throws an IOException if any file could not be deleted, or if {@code dir} is not a readable directory.

Delivers error message to the ErrorListener that the Request was initialized with. @param error Error details

Subclasses must implement this to perform delivery of the parsed response to their listeners. The given response is guaranteed to be non-null; respon

The real guts of parseNetworkResponse. Broken out for readability.

Initializes an {@link HttpEntity} from the given {@link HttpURLConnection}. @param connection @return an HttpEntity populated with data from <code>con

@return The hashcode of the URL's host component, or 0 if there is none.

Closes the log, dumping it to logcat if the time difference between the first and last markers is greater than {@link #MIN_DURATION_FOR_LOGGING_MS}. @

Flushes the disk cache associated with this ImageCache object. Note that this includes disk access so this should not be executed on the main/UI threa

Returns the cache entry with the specified key if it exists, null otherwise.