new startCapturingVideo(File, long) for max duration

README.md

@@ -145,6 +145,9 @@ camera.postDelayed(new Runnable() {
         camera.stopRecordingVideo();
     }
 }, 2500);
+
+// Shorthand:
+camera.startRecordingVideo(file, 2500);
 ```
 
 ### Other camera events

camerakit/src/main/java/com/flurgle/camerakit/CameraView.java

@@ -859,6 +859,34 @@ public class CameraView extends FrameLayout implements LifecycleObserver {
     }
 
 
+    /**
+     * Starts recording a video with selected options. Video will be written to the given file,
+     * so callers should ensure they have appropriate permissions to write to the file.
+     * Recording will be automatically stopped after durationMillis, unless
+     * {@link #stopCapturingVideo()} is not called meanwhile.
+     *
+     * @param file a file where the video will be saved
+     * @param durationMillis video max duration
+     *
+     * @throws IllegalArgumentException if durationMillis is < 500 milliseconds
+     */
+    public void startCapturingVideo(File file, long durationMillis) {
+        if (durationMillis < 500) {
+            throw new IllegalArgumentException("Video duration can't be < 500 milliseconds");
+        }
+        startCapturingVideo(file);
+        postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                stopCapturingVideo();
+            }
+        }, durationMillis);
+    }
+
+
+    // TODO: pauseCapturingVideo and resumeCapturingVideo. There is mediarecorder.pause(), but API 24...
+
+
     /**
      * Stops capturing video, if there was a video record going on.
      * This will fire {@link CameraListener#onVideoTaken(File)}.

demo/src/main/res/layout/activity_main.xml

@@ -23,7 +23,7 @@
                 android:layout_width="match_parent"
                 android:layout_height="400dp"
                 android:layout_gravity="center_horizontal"
-                android:adjustViewBounds="true"
+                android:keepScreenOn="true"
                 app:cameraCropOutput="false"
                 app:cameraFacing="back"
                 app:cameraFlash="off"