代码片段

package com.tang.faceindetify;import android.app.Activity;import android.app.ActionBar;import android.app.Fragment;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Point;import android.graphics.PointF;import android.media.AudioManager;import android.media.FaceDetector;import android.media.FaceDetector.Face;import android.media.SoundPool;import android.os.Bundle;import android.view.LayoutInflater;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.view.ViewGroup;import android.widget.Toast;import android.os.Build;public class MainActivity extends Activity {	private SoundPool sp;	private int sid;	@Override	protected void onCreate(Bundle savedInstanceState) {		super.onCreate(savedInstanceState);		setContentView(R.layout.activity_main);		Bitmap bitmap = BitmapFactory.decodeFile("/data/data/com.look.pic/test.jpg");		FaceDetector detector = new FaceDetector(bitmap.getWidth(),				bitmap.getHeight(), 1);		Face[] mfaces = new Face[1];		int nums = detector.findFaces(bitmap, mfaces);		if (nums > 0) {			for (int i = 0; i < nums; i++) {				PointF point = new PointF();				mfaces[i].getMidPoint(point);				System.out.println("人脸中心坐标:"+point.x+","+point.y);			}		} else {			Toast.makeText(this, "没有识别到人脸", Toast.LENGTH_SHORT).show();		}		sp = new SoundPool(5, AudioManager.STREAM_MUSIC, 0);		sid = sp.load(this, R.raw.test, 0);	}		public void soundPoll(View view)	{		sp.play(sid, 1.5f, 1.5f, 0, 0, 1.0f);	}}