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Merge pull request #28 from coderbunker/issue#27-eye_tracking
Issue#27 eye tracking
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86 changes: 86 additions & 0 deletions
86
app/src/main/java/com/coderbunker/kioskapp/facerecognition/CameraPreview.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| package com.coderbunker.kioskapp.facerecognition; | ||
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| import android.content.Context; | ||
| import android.hardware.Camera; | ||
| import android.util.Log; | ||
| import android.view.SurfaceHolder; | ||
| import android.view.SurfaceView; | ||
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| import java.io.IOException; | ||
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| import static android.content.ContentValues.TAG; | ||
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| /** | ||
| * A basic Camera preview class | ||
| */ | ||
| public class CameraPreview extends SurfaceView implements SurfaceHolder.Callback { | ||
| private SurfaceHolder mHolder; | ||
| private Camera mCamera; | ||
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| public CameraPreview(Context context, Camera camera) { | ||
| super(context); | ||
| mCamera = camera; | ||
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| // Install a SurfaceHolder.Callback so we get notified when the | ||
| // underlying surface is created and destroyed. | ||
| mHolder = getHolder(); | ||
| mHolder.addCallback(this); | ||
| // deprecated setting, but required on Android versions prior to 3.0 | ||
| mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); | ||
| } | ||
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| public void surfaceCreated(SurfaceHolder holder) { | ||
| try { | ||
| mCamera.setPreviewDisplay(holder); | ||
| mCamera.startPreview(); | ||
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| startFaceDetection(); // start face detection feature | ||
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| } catch (IOException e) { | ||
| Log.d(TAG, "Error setting camera preview: " + e.getMessage()); | ||
| } | ||
| } | ||
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| public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { | ||
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| if (holder.getSurface() == null) { | ||
| // preview surface does not exist | ||
| Log.d(TAG, "holder.getSurface() == null"); | ||
| return; | ||
| } | ||
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| try { | ||
| mCamera.stopPreview(); | ||
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| } catch (Exception e) { | ||
| // ignore: tried to stop a non-existent preview | ||
| Log.d(TAG, "Error stopping camera preview: " + e.getMessage()); | ||
| } | ||
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| try { | ||
| mCamera.setPreviewDisplay(holder); | ||
| mCamera.startPreview(); | ||
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| startFaceDetection(); // re-start face detection feature | ||
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| } catch (Exception e) { | ||
| // ignore: tried to stop a non-existent preview | ||
| Log.d(TAG, "Error starting camera preview: " + e.getMessage()); | ||
| } | ||
| } | ||
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| public void surfaceDestroyed(SurfaceHolder holder) { | ||
| // empty. Take care of releasing the Camera preview in your activity. | ||
| } | ||
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| public void startFaceDetection() { | ||
| // Try starting Face Detection | ||
| Camera.Parameters params = mCamera.getParameters(); | ||
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| // start face detection only *after* preview has started | ||
| if (params.getMaxNumDetectedFaces() > 0) { | ||
| // camera supports face detection, so can start it: | ||
| mCamera.startFaceDetection(); | ||
| } | ||
| } | ||
| } |
24 changes: 24 additions & 0 deletions
24
app/src/main/java/com/coderbunker/kioskapp/facerecognition/FaceDetectionListener.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| package com.coderbunker.kioskapp.facerecognition; | ||
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| import android.hardware.Camera; | ||
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| import java.util.Observable; | ||
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| public class FaceDetectionListener extends Observable implements Camera.FaceDetectionListener { | ||
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| @Override | ||
| public void onFaceDetection(Camera.Face[] faces, Camera camera) { | ||
| if (faces.length > 0) { | ||
| for (Camera.Face face : faces) { | ||
| try { | ||
| /*System.out.println("--------------------------"); | ||
| System.out.println(face.score);*/ | ||
| setChanged(); | ||
| notifyObservers(face); | ||
| } catch (Exception e) { | ||
| e.printStackTrace(); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,11 +1,53 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
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| <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" | ||
| xmlns:tools="http://schemas.android.com/tools" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="match_parent"> | ||
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| <WebView android:id="@+id/webview" | ||
| android:layout_width="fill_parent" | ||
| android:layout_height="fill_parent" | ||
| xmlns:android="http://schemas.android.com/apk/res/android"> | ||
| <WebView | ||
| android:id="@+id/webview" | ||
| android:layout_width="fill_parent" | ||
| android:layout_height="fill_parent"> | ||
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| </WebView> | ||
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| <FrameLayout | ||
| android:id="@+id/camera_preview" | ||
| android:layout_width="1dp" | ||
| android:layout_height="1dp" | ||
| android:visibility="visible"> | ||
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| </FrameLayout> | ||
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| <TextView | ||
| android:id="@+id/face_detection_score" | ||
| android:layout_width="wrap_content" | ||
| android:layout_height="wrap_content" | ||
| android:layout_alignParentBottom="true" | ||
| android:layout_alignParentEnd="true" | ||
| android:layout_marginBottom="21dp" | ||
| android:layout_marginEnd="30dp" | ||
| android:text="TextView" | ||
| android:visibility="gone" | ||
| tools:layout_editor_absoluteX="758dp" | ||
| tools:layout_editor_absoluteY="1123dp" /> | ||
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| <TextView | ||
| android:id="@+id/face_counter" | ||
| android:layout_width="wrap_content" | ||
| android:layout_height="wrap_content" | ||
| android:layout_alignParentBottom="true" | ||
| android:layout_centerHorizontal="true" | ||
| android:background="#000" | ||
| android:text="0" | ||
| android:textColor="#FFF" | ||
| android:textSize="18sp" | ||
| android:visibility="visible" | ||
| tools:layout_editor_absoluteX="758dp" | ||
| tools:layout_editor_absoluteY="1123dp" /> | ||
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| </RelativeLayout> | ||
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