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How to start camera from fragment in Android – Stack Overflow

If you have an Android phone, you might be amazed to know that the camera can actually start from any fragment. In this article, learn how to get started with the CameraFragment.

What is a Fragment?

A fragment is an individual piece of UI that can be displayed onscreen in an activity or fragment. They are created by using the FragmentManager class and provide a convenient way to manage multiple pieces of UI. When you create a fragment, you specify its layout (which is a reference to an XML file), and the parent activity or fragment that it will be attached to.

How to create a Fragment

When you want to start taking pictures with your Android device, first you’ll need to create a Fragment. A Fragment is just an object that contains the code that runs when the app is in the foreground and you press the camera button. To create a Fragment, open your app’s main activity and add the following line to the onCreate() method:

Fragment fragment = new Fragment();

Now, in onCreate(), add the following code to create and attach your Fragment to the activity:

fragment.setArguments(this); activity.addFragment(fragment);

When you’re finished, your onCreate() method should look like this:

@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Add a fragment to the activity fragment = new Fragment(); fragment.setArguments(this); activity.addFragment(fragment); }

How to add the Camera class of your app

How to start camera from fragment in Android – Stack Overflow

In this article, we will see how to add the Camera class of your app using a Fragment.

How to use Camera API in your fragment

If you want to use the camera in your fragment, there are a few things you need to do. First, you need to get a reference to the Camera object. Then, you can start and stop the camera by calling its start() and stop() methods. Here’s an example that uses these methods to take a picture:

Camera camera = getCamera(); // Get a reference to the camera. Camera.start(this, “test”, new Rectangle(0, 0, 100, 100)); // Start the camera. Camera.stop(); // Stop the camera.

You can also use the Camera object’s setPicture() method to take a picture or video. The first parameter is the image file name (without the file extension), and the second is the desired resolution of the image or video. Here’s an example that takes a picture:

camera.setPicture(“picture1”, ResolutionManager.MEDIUM);

And here’s an example that takes a video:

camera.setPicture(“video1”, ResolutionManager.HIGH_QUALITY);

How to call startCapture() when you have video capture set up

If you’ve set up video capture in your Android app and want to start taking video automatically when the user starts recording, you can use fragment’s startCapture() function. Here’s how:

  1. Create a fragment with an onCreateView() method that initializes the video capture flag.
  2. In the onStartRecording() method of this fragment, call startCapture(). The result will be a bitmap buffer containing the currently captured frame.
  3. Call finishRecording() to stop capturing video and release the bitmap buffer.

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