<li><a href="#considerations">Considerations</a></li>
<li><a href="#basics">The Basics</a>
<li><a href="#manifest">Manifest Declarations</a></li>
- <li><a href="#intents">Using Existing Camera Apps</a>
- <ol>
- <li><a href="#intent-image">Image capture intent</a></li>
- <li><a href="#intent-video">Video capture intent</a></li>
- <li><a href="#intent-receive">Receiving camera intent result</a></li>
- </ol>
+ <li><a href="#camera-apps">Using Existing Camera Apps</a>
<li><a href="#custom-camera">Building a Camera App</a>
<ol>
<li><a href="#detect-camera">Detecting camera hardware</a></li>
<li><strong>Quick Picture or Customized Camera</strong> - How will your application use the
camera? Are you just interested in snapping a quick picture or video clip, or will your application
provide a new way to use cameras? For a getting a quick snap or clip, consider
-<a href="#intents">Using Existing Camera Apps</a>. For developing a customized camera feature, check
+<a href="#camera-apps">Using Existing Camera Apps</a>. For developing a customized camera feature, check
out the <a href="#custom-camera">Building a Camera App</a> section.</li>
<li><strong>Storage</strong> - Are the images or videos your application generates intended to be
<pre>
<uses-permission android:name="android.permission.CAMERA" />
</pre>
- <p class="note"><strong>Note:</strong> If you are using the camera <a href="#intents">via an
-intent</a>, your application does not need to request this permission.</p>
+ <p class="note"><strong>Note:</strong> If you are using the camera <a href="#camera-apps">by
+invoking an existing camera app</a>,
+your application does not need to request this permission.</p>
</li>
<li><strong>Camera Features</strong> - Your application must also declare use of camera features,
for example:
</ul>
-<h2 id="intents">Using Existing Camera Apps</h2>
+<h2 id="camera-apps">Using Existing Camera Apps</h2>
<p>A quick way to enable taking pictures or videos in your application without a lot of extra code
-is to use an {@link android.content.Intent} to invoke an existing Android camera application. A
-camera intent makes a request to capture a picture or video clip through an existing camera app and
-then returns control back to your application. This section shows you how to capture an image or
-video using this technique.</p>
-
-<p>The procedure for invoking a camera intent follows these general steps:</p>
-
-<ol>
- <li><strong>Compose a Camera Intent</strong> - Create an {@link android.content.Intent} that
-requests an image or video, using one of these intent types:
- <ul>
- <li>{@link android.provider.MediaStore#ACTION_IMAGE_CAPTURE MediaStore.ACTION_IMAGE_CAPTURE} -
-Intent action type for requesting an image from an existing camera application.</li>
- <li>{@link android.provider.MediaStore#ACTION_VIDEO_CAPTURE MediaStore.ACTION_VIDEO_CAPTURE} -
-Intent action type for requesting a video from an existing camera application. </li>
- </ul>
- </li>
- <li><strong>Start the Camera Intent</strong> - Use the {@link
-android.app.Activity#startActivityForResult(android.content.Intent, int) startActivityForResult()}
-method to execute the camera intent. After you start the intent, the Camera application user
-interface appears on the device screen and the user can take a picture or video.</li>
- <li><strong>Receive the Intent Result</strong> - Set up an {@link
-android.app.Activity#onActivityResult(int, int, android.content.Intent) onActivityResult()} method
-in your application to receive the callback and data from the camera intent. When the user
-finishes taking a picture or video (or cancels the operation), the system calls this method.</li>
-</ol>
-
-
-<h3 id="intent-image">Image capture intent</h3>
-<p>Capturing images using a camera intent is quick way to enable your application to take pictures
-with minimal coding. An image capture intent can include the following extra information:</p>
-
-<ul>
- <li>{@link android.provider.MediaStore#EXTRA_OUTPUT MediaStore.EXTRA_OUTPUT} - This setting
-requires a {@link android.net.Uri} object specifying a path and file name where you'd like to
-save the picture. This setting is optional but strongly recommended. If you do not specify this
-value, the camera application saves the requested picture in the default location with a default
-name, specified in the returned intent's {@link android.content.Intent#getData() Intent.getData()}
-field.</li>
-</ul>
-
-<p>The following example demonstrates how to construct a image capture intent and execute it.
-The {@code getOutputMediaFileUri()} method in this example refers to the sample code shown in <a
-href= "#saving-media">Saving Media Files</a>.</p>
-
-<pre>
-private static final int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 100;
-private Uri fileUri;
-
-@Override
-public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.main);
-
- // create Intent to take a picture and return control to the calling application
- Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
-
- fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE); // create a file to save the image
- intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri); // set the image file name
-
- // start the image capture Intent
- startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);
-}
-</pre>
-
-<p>When the {@link android.app.Activity#startActivityForResult(android.content.Intent, int)
-startActivityForResult()} method is executed, users see a camera application interface.
-After the user finishes taking a picture (or cancels the operation), the user interface returns to
-your application, and you must intercept the {@link
-android.app.Activity#onActivityResult(int, int, android.content.Intent) onActivityResult()}
-method to receive the result of the intent and continue your application execution. For information
-on how to receive the completed intent, see <a href="#intent-receive">Receiving camera intent
-result</a>.</p>
-
-
-<h3 id="intent-video">Video capture intent</h3>
-<p>Capturing video using a camera intent is a quick way to enable your application to take videos
-with minimal coding. A video capture intent can include the following extra information:</p>
-
-<ul>
- <li>{@link android.provider.MediaStore#EXTRA_OUTPUT MediaStore.EXTRA_OUTPUT} - This setting
-requires a {@link android.net.Uri} specifying a path and file name where you'd like to save the
-video. This setting is optional but strongly recommended. If you do not specify this value, the
-Camera application saves the requested video in the default location with a default name, specified
-in the returned intent's {@link android.content.Intent#getData() Intent.getData()} field.</li>
- <li>{@link android.provider.MediaStore#EXTRA_VIDEO_QUALITY MediaStore.EXTRA_VIDEO_QUALITY} -
-This value can be 0 for lowest quality and smallest file size or 1 for highest quality and
-larger file size.</li>
- <li>{@link android.provider.MediaStore#EXTRA_DURATION_LIMIT MediaStore.EXTRA_DURATION_LIMIT} -
-Set this value to limit the length, in seconds, of the video being captured.</li>
- <li>{@link android.provider.MediaStore#EXTRA_SIZE_LIMIT MediaStore.EXTRA_SIZE_LIMIT} -
-Set this value to limit the file size, in bytes, of the video being captured.
-</li>
-</ul>
-
-<p>The following example demonstrates how to construct a video capture intent and execute it.
-The {@code getOutputMediaFileUri()} method in this example refers to the sample code shown in <a
-href= "#saving-media">Saving Media Files</a>.</p>
-
-<pre>
-private static final int CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE = 200;
-private Uri fileUri;
-
-@Override
-public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.main);
-
- //create new Intent
- Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
-
- fileUri = getOutputMediaFileUri(MEDIA_TYPE_VIDEO); // create a file to save the video
- intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri); // set the image file name
-
- intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1); // set the video image quality to high
-
- // start the Video Capture Intent
- startActivityForResult(intent, CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE);
-}
-</pre>
-
-<p>When the {@link
-android.app.Activity#startActivityForResult(android.content.Intent, int)
-startActivityForResult()} method is executed, users see a modified camera application interface.
-After the user finishes taking a video (or cancels the operation), the user interface
-returns to your application, and you must intercept the {@link
-android.app.Activity#onActivityResult(int, int, android.content.Intent) onActivityResult()}
-method to receive the result of the intent and continue your application execution. For information
-on how to receive the completed intent, see the next section.</p>
-
-<h3 id="intent-receive">Receiving camera intent result</h3>
-<p>Once you have constructed and executed an image or video camera intent, your application must be
-configured to receive the result of the intent. This section shows you how to intercept the callback
-from a camera intent so your application can do further processing of the captured image or
-video.</p>
-
-<p>In order to receive the result of an intent, you must override the {@link
-android.app.Activity#onActivityResult(int, int, android.content.Intent) onActivityResult()} in the
-activity that started the intent. The following example demonstrates how to override {@link
-android.app.Activity#onActivityResult(int, int, android.content.Intent) onActivityResult()} to
-capture the result of the <a href="#intent-image">image camera intent</a> or <a
-href="#intent-video">video camera intent</a> examples shown in the previous sections.</p>
-
-<pre>
-private static final int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 100;
-private static final int CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE = 200;
-
-@Override
-protected void onActivityResult(int requestCode, int resultCode, Intent data) {
- if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) {
- if (resultCode == RESULT_OK) {
- // Image captured and saved to fileUri specified in the Intent
- Toast.makeText(this, "Image saved to:\n" +
- data.getData(), Toast.LENGTH_LONG).show();
- } else if (resultCode == RESULT_CANCELED) {
- // User cancelled the image capture
- } else {
- // Image capture failed, advise user
- }
- }
-
- if (requestCode == CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE) {
- if (resultCode == RESULT_OK) {
- // Video captured and saved to fileUri specified in the Intent
- Toast.makeText(this, "Video saved to:\n" +
- data.getData(), Toast.LENGTH_LONG).show();
- } else if (resultCode == RESULT_CANCELED) {
- // User cancelled the video capture
- } else {
- // Video capture failed, advise user
- }
- }
-}
-</pre>
-
-<p>Once your activity receives a successful result, the captured image or video is available in the
-specified location for your application to access.</p>
-
-
+is to use an {@link android.content.Intent} to invoke an existing Android camera application.
+The details are described in the training lessons
+<a href="{@docRoot}training/camera/photobasics.html">Taking Photos Simply</a> and
+<a href="{@docRoot}training/camera/videobasics.html">Recording Videos Simply</a>.</p>
<h2 id="custom-camera">Building a Camera App</h2>
<p>Some developers may require a camera user interface that is customized to the look of their
-application or provides special features. Creating a customized camera activity requires more
-code than <a href="#intents">using an intent</a>, but it can provide a more compelling experience
-for your users.</p>
+application or provides special features. Writing your own picture-taking code
+can provide a more compelling experience for your users.</p>
<p><strong> Note: The following guide is for the older, deprecated {@link android.hardware.Camera}
API. For new or advanced camera applications, the newer {@link android.hardware.camera2} API is
<h3 id="access-camera">Accessing cameras</h3>
<p>If you have determined that the device on which your application is running has a camera, you
must request to access it by getting an instance of {@link android.hardware.Camera} (unless you
-are using an <a href="#intents">intent to access the camera</a>). </p>
+are using an <a href="camera-apps">intent to access the camera</a>). </p>
<p>To access the primary camera, use the {@link android.hardware.Camera#open() Camera.open()} method
and be sure to catch any exceptions, as shown in the code below:</p>
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