Android notification about an mp4 download

You can use this functionality to call attention to specific words as the text-to-speech engine speaks them. To use these text-to-speech engine improvements in your app, register an instance of UtteranceProgressListener.

As part of the registration process, include a handler for the onRangeStart method. The text-to-speech engine calls rangeStart to record the point in time at which it expects audio playback of a specific range of text to start. When the audio for that text range starts playback, your app's onRangeStart method executes.

Your app can then respond to this callback, such as by highlighting the text range that's associated with the utterance. For more information about tracking the playback progress of a text-to-speech engine, see the UtteranceProgressListener class reference. When the system needs to free up disk space, it will start by deleting cached files from apps that are the most over their allocated quota. Thus, if you keep your cached data under your allocated quota, your cached files will be some of the last on the system to be cleared when necessary.

When the system is deciding what cached files to delete inside your app, it will consider the oldest files first as determined by modified time. There are also two new behaviors that you can enable on a per-directory basis to control how the system frees up your cached data:.

Finally, when you need to allocate disk space for large files, consider using the new allocateBytes FileDescriptor, long API, which will automatically clear cached files belonging to other apps as needed to meet your request. When deciding if the device has enough disk space to hold your new data, call getAllocatableBytes UUID instead of using getUsableSpace , since the former will consider any cached data that the system is willing to clear on your behalf.

We've updated content providers to include support for loading a large dataset one page at a time. For example, a photo app with many thousands of images can query for a subset of the data to present in a page. Each page of results returned by a content provider is represented by a single Cursor object.

Both a client and a provider must implement paging to make use of this feature. For detailed information about the changes to content providers, see ContentProvider and ContentProviderClient. The ContentProvider and ContentResolver classes now each include a refresh method, making it easier for clients to know whether the information they request is up-to-date.

You can add custom content refreshing logic by extending ContentProvider. Make sure that you override the refresh method to return true , indicating to your provider's clients that you've attempted to refresh the data yourself. Your client app can explicitly request refreshed content by calling a different method, also called refresh.

When calling this method, pass in the URI of the data to refresh. Note: Because you may be requesting data over a network, you should invoke refresh from the client side only when there's a strong indication that the content is stale. The most common reason to perform this type of content refresh is in response to a swipe-to-refresh gesture, explicitly requesting the current UI to display up-to-date content.

These improvements make it easier for your app to comply with the new background execution limits , since you can generally use scheduled jobs to replace the now-restricted background services or implicit broadcast receivers. Updates to JobScheduler include:. For more information about implementing the data store, refer to Custom Data Store.

There is a new VolumeShaper class. Use it to perform short automated volume transitions like fade-ins, fade-outs, and cross fades. See Controlling Amplitude with VolumeShaper to learn more. Audio apps share the audio output on a device by requesting and abandoning audio focus. An app handles changes in focus by starting or stopping playback, or ducking its volume.

There is a new AudioFocusRequest class. Using this class as the parameter of requestAudioFocus , apps have new capabilites when handling changes in audio focus: automatic ducking and delayed focus gain. A new getMetrics method returns a PersistableBundle object containing configuration and performance information, expressed as a map of attributes and values. The getMetrics method is defined for these media classes:. Metrics are collected separately for each instance and persist for the lifetime of the instance.

If no metrics are available the method returns null. The actual metrics returned depend on the class. It includes a second parameter that specifies a seek mode:. Metadata can be useful for offline processing. For example, gyro signals from the sensor could be used to perform video stabilization.

Instead, the app passes a ByteBuffer with an associated timestamp to the writeSampleData method. The timestamp must be in the same time base as the video and audio tracks. When using MediaExtractor to extract the file with metadata track, the mime format of the metadata will be extracted into MediaFormat.

In fact, a documents provider can even provide access to files that reside on network storage or that use a protocol like Media Transfer Protocol MTP. The SAF can open a file to get a native seekable file descriptor. The SAF then delivers discrete bytes requests to the documents provider. This feature allows a documents provider to return the exact range of bytes that a media player app has requested instead of caching the entire file in advance.

To use this feature, you need to call the new StorageManager. The SAF invokes the callback any time a client application performs file operations on the file descriptor returned from the documents provider. However, because the returned URI is backed by a DocumentsProvider , media collection managers can access the document directly, without having to traverse trees of scoped directories.

As a result, the media managers can perform file operations on the document significantly more quickly. Caution: The getDocumentUri method only locates media files; it doesn't grant apps permission to access those files.

To learn more about how to obtain access permission to media files, see the reference documentation. When using the Storage Access Framework in Android 8.

The method returns this path in a DocumentsContract. Path object. In cases where a file system has multiple defined paths to the same document, the method returns the path that is used most often to reach the document with the given ID.

Note: If your app has permission to access only some of the documents in the path, the return value of findDocumentPath includes only the folders and documents that your app can access. The AudioManager system service maintains a list of active AudioPlaybackConfiguration objects, each of which contains information about a particular audio playback session.

Your app can retrieve the set of currently-active configurations by calling getActivePlaybackConfigurations. The AudioManager. On form factors other than handsets and tablets, media format support may vary.

Note that a particular mobile device might support additional formats or file types that are not listed in these tables. In addition, if you use a MediaCodec directly, you can access any of the available media formats regardless of the supported file types and container formats.

The table below lists the Android media framework video encoding profiles and parameters recommended for playback using the H. The same recommendations apply to the Main Profile codec, which is only available in Android 6. The table below lists the Android media framework video encoding profiles and parameters recommended for playback using the VP8 media codec. Content and code samples on this page are subject to the licenses described in the Content License.

App Basics. Build your first app. App resources. Resource types. App manifest file. Device compatibility. Multiple APK support. Tablets, large screens, and foldables. Build responsive UIs. Build for foldables. Getting started. Handling data. User input. Watch Face Studio. Health services. Creating watch faces. Android TV. Build TV Apps. Build TV playback apps. Help users find content on TV. Recommend TV content. Watch Next. Build TV games.

Build TV input services. TV Accessibility. Android for Cars. Build media apps for cars. Build navigation, parking, and charging apps for cars. Android Things. Supported hardware. Advanced setup. Build apps. Create a Things app. Communicate with wireless devices. Configure devices. Interact with peripherals. Build user-space drivers. Manage devices. Create a build.

Push an update. Chrome OS devices. App architecture. Architecture Components. UI layer libraries. View binding. Data binding library. Lifecycle-aware components. Paging Library. Paging 2. Data layer libraries. How-To Guides. Advanced Concepts. Threading in WorkManager. App entry points. App shortcuts. You can download video with different resolution according to your needs and device capacity. Download different formats with the new TubeMate Youtube Downloader.

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Tubemate Youtube Downloader support different video file formats. You can download the videos as Mp4, FLV and other popular formats. Tubemate has another popular function which you must like! Tubemate support Youtube to audio file. You can download the videos as Mp3 or AAC file formats. Remember The AAC version is much faster and has the best quality.

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