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Adobe Photoshop CC. VirtualDJ Avast Free Security. WhatsApp Messenger. Talking Tom Cat. Clash of Clans. A shared calendar content provider and framework API make it easier for developers to add calendar services to their apps.
With user permission, any application can add events to the shared database and manage dates, attendees, alerts, and reminders. Applications can also read entries from the database, including events contributed by other applications, and handle the display of event alerts and reminders. Apps can also use calendar data to improve the relevance of their other content.
For lighter-weight access to calendar services, the Calendar app defines a set of public Intents for creating, viewing, and editing events. Rather than needing to implement a calendar UI and integrate directly with the calendar provider, applications can simply broadcast calendar Intents.
When the Calendar app receives the Intents, it launches the appropriate UI and stores any event data entered. Using calendar Intents, for example, apps can let users add events directly from lists, dialogs, or home screen widgets, such as for making restaurant reservations or booking time with friends.
A shared Voicemail provider and API allow developers to build applications that contribute to a unified voicemail store. Android Beam is an NFC-based feature that lets users instantly share information about the apps they are using, just by touching two NFC-enabled phones together.
When the devices are in range — within a few centimeters — the system sets up an NFC connection and displays a sharing UI. To share whatever they are viewing with the other device, users just touch the screen.
For developers, Android Beam is a new way of triggering almost any type of proximity-based interaction. For example, it can let users instantly exchange contacts, set up multiplayer gaming, join a chat or video call, share a photo or video, and more.
The system provides the low-level NFC support and the sharing UI, while the foreground app provides lightweight data to transfer to the other device.
Developers have complete control over the data that is shared and how it is handled, so almost any interaction is possible. For larger payloads, developers can even use Android Beam to initiate a connection and transfer the data over Bluetooth, without the need for user-visible pairing.
Even if developers do not add custom interactions based on Android Beam they can still benefit from it being deeply integrated into Android. The UI framework includes a new widget, ShareActionProvider, that lets developers quickly embed standard share functionality and UI in the Action Bar of their applications.
Developers simply add ShareActionProvider to the menu and set an intent that describes the desired sharing action. The system handles the rest, building up the list of applications that can handle the share intent and dispatching the intent when the user chooses from the menu.
The new path is ideal for applications that need to maintain complete control over media data before passing it to the platform for presentation. The platform de-muxes, decodes, and renders the content. The audio track is rendered to the active audio device, while the video track is rendered to either a Surface or a SurfaceTexture.
When rendering to a SurfaceTexture, the application can apply subsequent graphics effects to each frame using OpenGL. Tools support for low-level streaming multimedia will be available in an upcoming release of the Android NDK.
Developers can take advantage of a variety of new camera features in Android 4. ZSL exposure, continuous focus, and image zoom let apps capture better still and video images, including during video capture. Apps can even capture full-resolution snapshots while shooting video. Apps can now set custom metering regions in a camera preview, then manage white balance and exposure dynamically for those regions.
For easier focusing and image processing, a face-detection service identifies and tracks faces in a preview and returns their screen coordinates. Media effects for transforming images and video. A set of high-performance transformation filters let developers apply rich effects to any image passed as an OpenGL ES 2. Developers can adjust color levels and brightness, change backgrounds, sharpen, crop, rotate, add lens distortion, and apply other effects.
The transformations are processed by the GPU, so they are fast enough for processing image frames loaded from disk, camera, or video stream. Using the audio remote control API, any music or media app can register to receive media button events from the remote control and then manage play state accordingly. The application can also supply metadata to the remote control, such as album art or image, play state, track number and description, duration, genre, and more.
For high-quality compressed images, the media framework adds support for WebP content. For video, the framework now supports streaming VP8 content.
Additionally, developers can now use Matroska containers for Vorbis and VP8 content. Developers can use a framework API to discover and connect directly to nearby devices over a high-performance, secure Wi-Fi peer-to-peer P2P connection. No internet connection or hotspot is needed. Wi-Fi peer-to-peer P2P opens new opportunities for developers to add innovative features to their applications.
Applications can use Wi-Fi P2P to share files, photos, or other media between devices or between a desktop computer and an Android-powered device. Applications could also use Wi-Fi P2P to stream media content from a peer device such as a digital television or audio player, connect a group of users for gaming, print files, and more. Developers can now build powerful medical applications that use Bluetooth to communicate with wireless devices and sensors in hospitals, fitness centers, homes, and elsewhere.
Applications can collect and manage data from HDP source devices and transmit it to backend medical applications such as records systems, data analysis services, and others. Using a framework API, applications can use Bluetooth to discover nearby devices, establish reliable or streaming data channels, and manage data transmission.
Applications can supply any IEEE Manager to retrieve and interpret health data from Continua-certified devices such as heart-rate monitors, blood meters, thermometers, and scales. A new layout, GridLayout, improves the performance of Android applications by supporting flatter view hierarchies that are faster to layout and render.
Because hierarchies are flatter, developers can also manage alignments between components that are visually related to each other even when they are not logically related, for precise control over application UI. GridLayout is also specifically designed to be configured by drag-and-drop design tools such as Android Studio. The object lets developers display and manipulate OpenGL ES rendering just as they would a normal view object in the hierarchy, including moving, transforming, and animating the view as needed.
The TextureView object makes it easy for developers to embed camera preview, decoded video, OpenGL game scenes, and more. TextureView can be viewed as a more powerful version of the existing SurfaceView object, since it offers the same benefits of access to a GL rendering surface, with the added advantage of having that surface participate fully in the normal view hierarchy.
All Android-powered devices running Android 4. Developers can take advantage of this to add great UI effects while maintaining optimal performance on high-resolution screens, even on phones. For example, developers can rely on accelerated scaling, rotation, and other 2D operations, as well as accelerated UI components such as TextureView and compositing modes such as filtering, blending, and opacity.
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Windows Windows. Search bar: Android 4. You can tap here and begin typing a search term, or tap the Voice Actions icon on the right to initiate a voice search or perform other voice commands. Home screen: You can fill this area with any combination of app shortcuts, folders and live, dynamic widgets more on those in a bit. Favorites tray: The Favorites tray is like a dock for your home screen: The shortcuts or folders placed there stay present as you swipe from one panel to the next.
By default, the tray includes commonly used items such as your Phone app, People app, Messaging app and Browser, with an icon for launching your app drawer in the center -- but you can customize it to include any items you want.
Navigation buttons: Instead of relying on a phone's physical buttons as in previous versions of Android, ICS has three main navigation buttons built into the interface at the bottom of the screen:.
The Back button, which looks like a left-facing arrow, takes you back one step from wherever you are. The Recent Apps button -- a new addition to Android 4. You can tap the button from anywhere in the system to get a list of recently used apps, then tap on any app to jump directly to that program.
You can also swipe left or right on any app to dismiss it and remove it from the list. If you've used Android before, you might be wondering what happened to the Menu button.
As of Android 4. If an application has more options than can fit on the screen, you'll see an icon that looks like three vertical dots; tapping that icon will bring up a list of additional functions relevant to your current activity. Curiously enough, the location of the vertical-dots icon is not always consistent, which was one of my criticisms of ICS in my initial review of the software.
If your phone has hardware buttons: It's worth noting that while Google's Android 4. If you're using an Android device that has physical buttons, those buttons should more or less correspond with the same functions described above. A couple of exceptions: If your phone has a physical Menu button, some options in applications will remain hidden behind that button, as they have in the past. You can press the Menu button in various applications to see what additional options are available to you.
If your phone has a physical Home button but no Recent Apps button, meanwhile, you can access the app-switching function by pressing the Home button and holding it down for a few seconds.
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