我一步一步地遵循本教程https://www.sitepoint.com/face-detection-in-android-with-google-play-services/。
尽管如此,我还是面临一些我无法通过stackoverflow解决的错误。
带有麻烦的代码如下:
super.onCreate(savedInstanceState); 的setContentView(R.layout.activity_main);
InputStream stream = getResources().openRawResource(R.raw.image01);
Bitmap bitmap = BitmapFactory.decodeStream(stream);
FaceDetector detector = new FaceDetector.Builder(getApplicationContext())
.setTrackingEnabled(false)
.build();
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
//create a frame from the bitmap and run face detection on the frame
Frame frame = new Frame.Builder().setBitmap(bitmap).build();
SparseArray<Face> faces = detector.detect(frame);
TextView faceCountView = (TextView) findViewById(R.id.face_count);
faceCountView.setText(faces.size() + "faces detected");
detector.release();
我得到了这些错误:
C:\用户\ XXX \ FaceDetectionDemo \应用\ SRC \主\的java \ COM \示例\ XXX \ facedetectiondemo \ MainActivity.java 错误:(40,49)错误:找不到符号类构建器错误:(51,21) 错误:找不到符号类Face Error:(51,43)错误:找不到 符号方法检测(帧)错误:(56,17)错误:找不到符号 方法release()错误:任务执行失败 &#39;:应用程序:compileDebugJavaWithJavac&#39;
build.gradle具有正确的依赖关系
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.4.0'
compile 'com.android.support:design:23.4.0'
compile 'com.google.android.gms:play-services:8.1.0'
}
我尝试使用此条目cannot find symbol class "Builder" enter image description here uilder?rq = 1但它不起作用
[已安装的SDK工具]
答案 0 :(得分:2)
我遇到了同样的问题。然后我找到了这个解决方案它对我有用:你必须删除库。
改变这个:
import android.media.FaceDetector;
为:
import com.google.android.gms.vision.face.FaceDetector;