Java GraphicOverlay类代码示例

import com.google.android.gms.samples.vision.ocrreader.ui.camera.GraphicOverlay; //导入依赖的package包/类
OcrGraphic(GraphicOverlay overlay, TextBlock text) {
    super(overlay);

    mText = text;

    if (sRectPaint == null) {
        sRectPaint = new Paint();
        sRectPaint.setColor(TEXT_COLOR);
        sRectPaint.setStyle(Paint.Style.STROKE);
        sRectPaint.setStrokeWidth(1.0f);
    }

    if (sTextPaint == null) {
        sTextPaint = new Paint();
        sTextPaint.setColor(TEXT_COLOR);
        sTextPaint.setTextSize(13.6f);
    }
    // Redraw the overlay, as this graphic has been added.
    postInvalidate();
}
 

import com.google.android.gms.samples.vision.ocrreader.ui.camera.GraphicOverlay; //导入依赖的package包/类
OcrGraphic(GraphicOverlay overlay, TextBlock text) {
    super(overlay);

    mText = text;

    if (sRectPaint == null) {
        sRectPaint = new Paint();
        sRectPaint.setColor(TEXT_COLOR);
        sRectPaint.setStyle(Paint.Style.STROKE);
        sRectPaint.setStrokeWidth(4.0f);
    }

    if (sTextPaint == null) {
        sTextPaint = new Paint();
        sTextPaint.setColor(TEXT_COLOR);
        sTextPaint.setTextSize(54.0f);
    }
    // Redraw the overlay, as this graphic has been added.
    postInvalidate();
}
 

import com.google.android.gms.samples.vision.ocrreader.ui.camera.GraphicOverlay; //导入依赖的package包/类
/**
 * Initializes the UI and creates the detector pipeline.
 */
@Override
public void onCreate(Bundle icicle) {
    super.onCreate(icicle);
    setContentView(R.layout.ocr_capture);

    mToolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(mToolbar);

    mPreview = (CameraSourcePreview) findViewById(R.id.preview);
    mGraphicOverlay = (GraphicOverlay<OcrGraphic>) findViewById(R.id.graphicOverlay);

    // read parameters from the intent used to launch the activity.
    boolean autoFocus = getIntent().getBooleanExtra(AutoFocus, false);
    boolean useFlash = getIntent().getBooleanExtra(UseFlash, false);

    // Check for the camera permission before accessing the camera.  If the
    // permission is not granted yet, request permission.
    int rc = ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA);
    if (rc == PackageManager.PERMISSION_GRANTED) {
        createCameraSource(autoFocus, useFlash);
    } else {
        requestCameraPermission();
    }

    gestureDetector = new GestureDetector(this, new CaptureGestureListener());
    scaleGestureDetector = new ScaleGestureDetector(this, new ScaleListener());

    Snackbar.make(mGraphicOverlay, "Tap to capture. Pinch/Stretch to zoom",
            Snackbar.LENGTH_LONG)
            .show();
}
 

import com.google.android.gms.samples.vision.ocrreader.ui.camera.GraphicOverlay; //导入依赖的package包/类
/**
 * Initializes the UI and creates the detector pipeline.
 */
@Override
public void onCreate(Bundle icicle) {
    super.onCreate(icicle);
    setContentView(R.layout.ocr_capture);

    mPreview = (CameraSourcePreview) findViewById(R.id.preview);
    mGraphicOverlay = (GraphicOverlay<OcrGraphic>) findViewById(R.id.graphicOverlay);

    // read parameters from the intent used to launch the activity.
    boolean autoFocus = getIntent().getBooleanExtra(AutoFocus, false);
    boolean useFlash = getIntent().getBooleanExtra(UseFlash, false);

    // Check for the camera permission before accessing the camera.  If the
    // permission is not granted yet, request permission.
    int rc = ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA);
    if (rc == PackageManager.PERMISSION_GRANTED) {
        createCameraSource(autoFocus, useFlash);
    } else {
        requestCameraPermission();
    }

    gestureDetector = new GestureDetector(this, new CaptureGestureListener());
    scaleGestureDetector = new ScaleGestureDetector(this, new ScaleListener());

    Snackbar.make(mGraphicOverlay, "Tap to capture. Pinch/Stretch to zoom",
            Snackbar.LENGTH_LONG)
            .show();
}
 

import com.google.android.gms.samples.vision.ocrreader.ui.camera.GraphicOverlay; //导入依赖的package包/类
/**
 * Initializes the UI and creates the detector pipeline.
 */
@Override
public void onCreate(Bundle bundle) {
    super.onCreate(bundle);
    setContentView(R.layout.ocr_capture);

    mPreview = (CameraSourcePreview) findViewById(R.id.preview);
    mGraphicOverlay = (GraphicOverlay<OcrGraphic>) findViewById(R.id.graphicOverlay);

    // Set good defaults for capturing text.
    boolean autoFocus = true;
    boolean useFlash = false;

    // Check for the camera permission before accessing the camera.  If the
    // permission is not granted yet, request permission.
    int rc = ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA);
    if (rc == PackageManager.PERMISSION_GRANTED) {
        createCameraSource(autoFocus, useFlash);
    } else {
        requestCameraPermission();
    }

    gestureDetector = new GestureDetector(this, new CaptureGestureListener());
    scaleGestureDetector = new ScaleGestureDetector(this, new ScaleListener());

    Snackbar.make(mGraphicOverlay, "Tap to Speak. Pinch/Stretch to zoom",
            Snackbar.LENGTH_LONG)
            .show();

    // TODO: Set up the Text To Speech engine.
}
 

import com.google.android.gms.samples.vision.ocrreader.ui.camera.GraphicOverlay; //导入依赖的package包/类
OcrDetectorProcessor(GraphicOverlay<OcrGraphic> ocrGraphicOverlay) {
    mGraphicOverlay = ocrGraphicOverlay;
}
 

import com.google.android.gms.samples.vision.ocrreader.ui.camera.GraphicOverlay; //导入依赖的package包/类
/**
 * Initializes the UI and creates the detector pipeline.
 */
@Override
public void onCreate(Bundle bundle) {
    super.onCreate(bundle);
    setContentView(R.layout.ocr_capture);

    mPreview = (CameraSourcePreview) findViewById(R.id.preview);
    mGraphicOverlay = (GraphicOverlay<OcrGraphic>) findViewById(R.id.graphicOverlay);

    // Set good defaults for capturing text.
    boolean autoFocus = true;
    boolean useFlash = false;

    // Check for the camera permission before accessing the camera.  If the
    // permission is not granted yet, request permission.
    int rc = ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA);
    if (rc == PackageManager.PERMISSION_GRANTED) {
        createCameraSource(autoFocus, useFlash);
    } else {
        requestCameraPermission();
    }

    gestureDetector = new GestureDetector(this, new CaptureGestureListener());
    scaleGestureDetector = new ScaleGestureDetector(this, new ScaleListener());

    Snackbar.make(mGraphicOverlay, "Tap to Speak. Pinch/Stretch to zoom",
            Snackbar.LENGTH_LONG)
            .show();

    // Set up the Text To Speech engine.
    TextToSpeech.OnInitListener listener =
            new TextToSpeech.OnInitListener() {
                @Override
                public void onInit(final int status) {
                    if (status == TextToSpeech.SUCCESS) {
                        Log.d("OnInitListener", "Text to speech engine started successfully.");
                        tts.setLanguage(Locale.US);
                    } else {
                        Log.d("OnInitListener", "Error starting the text to speech engine.");
                    }
                }
            };
    tts = new TextToSpeech(this.getApplicationContext(), listener);
}