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Once you obtain access to a camera, you can get further information about its capabilities using the to determine if a camera is on the front or back of the device, and the orientation of the image.For users to effectively take pictures or video, they must be able to see what the device camera sees.Note: This page describes the to invoke an existing Android camera application.

You must follow a specific order of execution to successfully prepare for and capture video with your application, as detailed below. To release an instance of the Caution: If your application does not properly release the camera, all subsequent attempts to access the camera, including those by your own application, will fail and may cause your or other applications to be shut down.

without creating a camera preview first and skip the first few steps of this process. Media files created by users such as pictures and videos should be saved to a device's external storage directory (SD Card) to conserve system space and to allow users to access these files without their device.

Android 2.3 (API Level 9) and later allows you to check the number of cameras available on a device using the .

Failing to check for exceptions if the camera is in use or does not exist will cause your application to be shut down by the system.

Note: The following guide is for the older, deprecated Camera hardware is a shared resource that must be carefully managed so your application does not collide with other applications that may also want to use it.

The following sections discusses how to detect camera hardware, how to request access to a camera, how to capture pictures or video and how to release the camera when your application is done using it.Note: With the introduction of the Multi-Window feature in Android 7.0 (API level 24) and higher, you can no longer assume the aspect ratio of the preview is the same as your activity even after calling .Depending on the window size and aspect ratio, you may may have to fit a wide camera preview into a portrait-orientated layout, or vice versa, using a letterbox layout.Android supports a wide array of camera features you can control with your camera application, such as picture format, flash mode, focus settings, and many more.This section lists the common camera features, and briefly discusses how to use them.The Android framework includes support for various cameras and camera features available on devices, allowing you to capture pictures and videos in your applications.

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