本文整理了Java中org.mapsforge.core.graphics.Bitmap类的一些代码示例，展示了Bitmap类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Bitmap类的具体详情如下：
包路径：org.mapsforge.core.graphics.Bitmap
类名称：Bitmap

Bitmap介绍

暂无

代码示例

代码示例来源：origin: mapsforge/mapsforge

@Override
public void setBitmapShader(Bitmap bitmap) {
  if (bitmap == null) {
    return;
  }
  this.shaderWidth = bitmap.getWidth();
  this.shaderHeight = bitmap.getHeight();
  Rectangle rectangle = new Rectangle(0, 0, bitmap.getWidth(), bitmap.getHeight());
  this.texturePaint = new TexturePaint(AwtGraphicFactory.getBitmap(bitmap), rectangle);
}

代码示例来源：origin: mapsforge/mapsforge

@Override
public synchronized void onDestroy() {
  if (this.bitmap != null) {
    this.bitmap.decrementRefCount();
  }
}

代码示例来源：origin: mapsforge/mapsforge

public SymbolContainer(Point point, Display display, int priority, Bitmap symbol, float theta, boolean alignCenter) {
  super(point, display, priority);
  this.symbol = symbol;
  this.theta = theta;
  this.alignCenter = alignCenter;
  if (alignCenter) {
    double halfWidth = this.symbol.getWidth() / 2d;
    double halfHeight = this.symbol.getHeight() / 2d;
    this.boundary = new Rectangle(-halfWidth, -halfHeight, halfWidth, halfHeight);
  } else {
    this.boundary = new Rectangle(0, 0, this.symbol.getWidth(), this.symbol.getHeight());
  }
  this.symbol.incrementRefCount();
}

代码示例来源：origin: mapsforge/mapsforge

@Override
public synchronized void draw(BoundingBox boundingBox, byte zoomLevel, Canvas canvas, Point topLeftPoint) {
  if (this.latLong == null || this.bitmap == null || this.bitmap.isDestroyed()) {
    return;
  }
  long mapSize = MercatorProjection.getMapSize(zoomLevel, this.displayModel.getTileSize());
  double pixelX = MercatorProjection.longitudeToPixelX(this.latLong.longitude, mapSize);
  double pixelY = MercatorProjection.latitudeToPixelY(this.latLong.latitude, mapSize);
  int halfBitmapWidth = this.bitmap.getWidth() / 2;
  int halfBitmapHeight = this.bitmap.getHeight() / 2;
  int left = (int) (pixelX - topLeftPoint.x - halfBitmapWidth + this.horizontalOffset);
  int top = (int) (pixelY - topLeftPoint.y - halfBitmapHeight + this.verticalOffset);
  int right = left + this.bitmap.getWidth();
  int bottom = top + this.bitmap.getHeight();
  Rectangle bitmapRectangle = new Rectangle(left, top, right, bottom);
  Rectangle canvasRectangle = new Rectangle(0, 0, canvas.getWidth(), canvas.getHeight());
  if (!canvasRectangle.intersects(bitmapRectangle)) {
    return;
  }
  canvas.drawBitmap(this.bitmap, left, top);
}

代码示例来源：origin: mapsforge/mapsforge

@SuppressWarnings("deprecation")
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
static Marker createTappableMarker(final Context c, int resourceIdentifier,
                  LatLong latLong) {
  Drawable drawable = Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP ? c.getDrawable(resourceIdentifier) : c.getResources().getDrawable(resourceIdentifier);
  Bitmap bitmap = AndroidGraphicFactory.convertToBitmap(drawable);
  bitmap.incrementRefCount();
  return new Marker(latLong, bitmap, 0, -bitmap.getHeight() / 2) {
    @Override
    public boolean onTap(LatLong geoPoint, Point viewPosition,
               Point tapPoint) {
      if (contains(viewPosition, tapPoint)) {
        Toast.makeText(c,
            "The Marker was tapped " + geoPoint.toString(),
            Toast.LENGTH_SHORT).show();
        return true;
      }
      return false;
    }
  };
}

代码示例来源：origin: mapsforge/mapsforge

private float computeVerticalOffset(byte zoomLevel) {
  float verticalOffset = this.dyScaled.get(zoomLevel);
  if (Position.ABOVE == this.position
      || Position.ABOVE_LEFT == this.position
      || Position.ABOVE_RIGHT == this.position) {
    verticalOffset -= this.bitmap.getHeight() / 2f + this.gap;
  } else if (Position.BELOW == this.position
      || Position.BELOW_LEFT == this.position
      || Position.BELOW_RIGHT == this.position) {
    verticalOffset += this.bitmap.getHeight() / 2f + this.gap;
  }
  return verticalOffset;
}

代码示例来源：origin: mapsforge/mapsforge

private float computeHorizontalOffset() {
  // compute only the offset required by the bitmap, not the text size,
  // because at this point we do not know the text boxing
  if (Position.RIGHT == this.position || Position.LEFT == this.position
      || Position.BELOW_RIGHT == this.position || Position.BELOW_LEFT == this.position
      || Position.ABOVE_RIGHT == this.position || Position.ABOVE_LEFT == this.position) {
    float horizontalOffset = this.bitmap.getWidth() / 2f + this.gap;
    if (Position.LEFT == this.position
        || Position.BELOW_LEFT == this.position
        || Position.ABOVE_LEFT == this.position) {
      horizontalOffset *= -1f;
    }
    return horizontalOffset;
  }
  return 0;
}

代码示例来源：origin: mapsforge/mapsforge

@Override
  public void onDestroy() {
    handler.removeCallbacks(bitmapChanger);
    // we need to increment the ref count here as otherwise the bitmap gets
    // destroyed, but we might need to reuse it when this is only part of
    // a pause/resume cycle.
    current.incrementRefCount();
    super.onDestroy();
    bitmapRed.decrementRefCount();
    bitmapGreen.decrementRefCount();
  }
}

代码示例来源：origin: mapsforge/mapsforge

@Override
  public void run() {
    if (current != null) {
      // since we want to keep the green bitmap around, we have to increment
      // its ref count, otherwise it gets recycled automatically when it is
      // replaced with the other colour.
      current.incrementRefCount();
    }
    if (bitmapGreen.equals(current)) {
      marker.setBitmap(bitmapRed);
      current = bitmapRed;
    } else {
      marker.setBitmap(bitmapGreen);
      current = bitmapGreen;
    }
    redrawLayers();
    handler.postDelayed(this, 2000);
  }
}

代码示例来源：origin: mapsforge/mapsforge

Bitmap create() {
    if (dimension.width > 0 && dimension.height > 0) {
      Bitmap bitmap = factory.createBitmap(dimension.width, dimension.height, isTransparent);
      bitmap.setBackgroundColor(color);
      return bitmap;
    }
    return null;
  }
}

代码示例来源：origin: org.mapsforge/mapsforge-map

@Override
public synchronized void draw(BoundingBox boundingBox, byte zoomLevel, Canvas canvas, Point topLeftPoint) {
  if (this.latLong == null || this.bitmap == null || this.bitmap.isDestroyed()) {
    return;
  }
  long mapSize = MercatorProjection.getMapSize(zoomLevel, this.displayModel.getTileSize());
  double pixelX = MercatorProjection.longitudeToPixelX(this.latLong.longitude, mapSize);
  double pixelY = MercatorProjection.latitudeToPixelY(this.latLong.latitude, mapSize);
  int halfBitmapWidth = this.bitmap.getWidth() / 2;
  int halfBitmapHeight = this.bitmap.getHeight() / 2;
  int left = (int) (pixelX - topLeftPoint.x - halfBitmapWidth + this.horizontalOffset);
  int top = (int) (pixelY - topLeftPoint.y - halfBitmapHeight + this.verticalOffset);
  int right = left + this.bitmap.getWidth();
  int bottom = top + this.bitmap.getHeight();
  Rectangle bitmapRectangle = new Rectangle(left, top, right, bottom);
  Rectangle canvasRectangle = new Rectangle(0, 0, canvas.getWidth(), canvas.getHeight());
  if (!canvasRectangle.intersects(bitmapRectangle)) {
    return;
  }
  canvas.drawBitmap(this.bitmap, left, top);
}

代码示例来源：origin: mapsforge/mapsforge

@SuppressWarnings("deprecation")
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
@Override
protected void createLayers() {
  super.createLayers();
  // Bubble overlays
  for (DummyContent.DummyItem item : DummyContent.ITEMS) {
    TextView bubbleView = new TextView(this);
    Utils.setBackground(bubbleView, Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP ? getDrawable(R.drawable.balloon_overlay_unfocused) : getResources().getDrawable(R.drawable.balloon_overlay_unfocused));
    bubbleView.setGravity(Gravity.CENTER);
    bubbleView.setMaxEms(20);
    bubbleView.setTextSize(15);
    bubbleView.setTextColor(Color.BLACK);
    bubbleView.setText(item.text);
    bubble = Utils.viewToBitmap(this, bubbleView);
    bubble.incrementRefCount();
    this.mapView.getLayerManager().getLayers().add(new Marker(item.location, bubble, 0, -bubble.getHeight() / 2));
  }
}

代码示例来源：origin: org.mapsforge/mapsforge-map

private float computeVerticalOffset(byte zoomLevel) {
  float verticalOffset = this.dyScaled.get(zoomLevel);
  if (Position.ABOVE == this.position
      || Position.ABOVE_LEFT == this.position
      || Position.ABOVE_RIGHT == this.position) {
    verticalOffset -= this.bitmap.getHeight() / 2f + this.gap;
  } else if (Position.BELOW == this.position
      || Position.BELOW_LEFT == this.position
      || Position.BELOW_RIGHT == this.position) {
    verticalOffset += this.bitmap.getHeight() / 2f + this.gap;
  }
  return verticalOffset;
}

代码示例来源：origin: mapsforge/mapsforge

/**
 * Calculates the required length and value of the scalebar
 *
 * @param unitAdapter the DistanceUnitAdapter to calculate for
 * @return a {@link ScaleBarLengthAndValue} object containing the required scaleBarLength and scaleBarValue
 */
protected ScaleBarLengthAndValue calculateScaleBarLengthAndValue(DistanceUnitAdapter unitAdapter) {
  this.prevMapPosition = this.mapViewPosition.getMapPosition();
  double groundResolution = MercatorProjection.calculateGroundResolution(this.prevMapPosition.latLong.latitude,
      MercatorProjection.getMapSize(this.prevMapPosition.zoomLevel, this.displayModel.getTileSize()));
  groundResolution = groundResolution / unitAdapter.getMeterRatio();
  int[] scaleBarValues = unitAdapter.getScaleBarValues();
  int scaleBarLength = 0;
  int mapScaleValue = 0;
  for (int scaleBarValue : scaleBarValues) {
    mapScaleValue = scaleBarValue;
    scaleBarLength = (int) (mapScaleValue / groundResolution);
    if (scaleBarLength < (this.mapScaleBitmap.getWidth() - 10)) {
      break;
    }
  }
  return new ScaleBarLengthAndValue(scaleBarLength, mapScaleValue);
}

代码示例来源：origin: mapsforge/mapsforge

public static Bitmap getBitmapFromTitle(String title, Paint paint) {
  if (!captionViews.containsKey(title)) {
    TextView bubbleView = new TextView(context);
    Utils.setBackground(bubbleView, context.getResources().getDrawable(R.drawable.caption_background));
    bubbleView.setGravity(Gravity.CENTER);
    bubbleView.setMaxEms(20);
    bubbleView.setTextSize(10);
    bubbleView.setPadding(5, -2, 5, -2);
    bubbleView.setTextColor(android.graphics.Color.BLACK);
    bubbleView.setText(title);
    //Measure the view at the exact dimensions (otherwise the text won't center correctly)
    int widthSpec = View.MeasureSpec.makeMeasureSpec(paint.getTextWidth(title), View.MeasureSpec.EXACTLY);
    int heightSpec = View.MeasureSpec.makeMeasureSpec(paint.getTextHeight(title), View.MeasureSpec.EXACTLY);
    bubbleView.measure(widthSpec, heightSpec);
    //Layout the view at the width and height
    bubbleView.layout(0, 0, paint.getTextWidth(title), paint.getTextHeight(title));
    captionViews.put(title, Utils.viewToBitmap(context, bubbleView));
    captionViews.get(title).incrementRefCount(); // FIXME: is never reduced!
  }
  return captionViews.get(title);
}

代码示例来源：origin: mapsforge/mapsforge

/**
 * @return the bitmap of the second frame to draw on (may be null).
 */
public synchronized Bitmap getDrawingBitmap() {
  if (this.lmBitmap != null) {
    this.lmBitmap.setBackgroundColor(this.displayModel.getBackgroundColor());
  }
  return this.lmBitmap;
}

代码示例来源：origin: mapsforge/mapsforge

public synchronized boolean contains(Point center, Point point) {
  // Touch min 20x20 px at baseline mdpi (160dpi)
  double width = Math.max(20 * this.displayModel.getScaleFactor(), this.bitmap.getWidth());
  double height = Math.max(20 * this.displayModel.getScaleFactor(), this.bitmap.getHeight());
  Rectangle r = new Rectangle(
      center.x - width / 2 + this.horizontalOffset,
      center.y - height / 2 + this.verticalOffset,
      center.x + width / 2 + this.horizontalOffset,
      center.y + height / 2 + this.verticalOffset);
  return r.contains(point);
}

代码示例来源：origin: mapsforge/mapsforge

@Override
public void draw(BoundingBox boundingBox, byte zoomLevel, Canvas canvas, Point topLeftPoint) {
  if (this.getLatLong() == null || this.getBitmap() == null || this.getBitmap().isDestroyed()) {
    return;
  double pixelY = MercatorProjection.latitudeToPixelY(this.getLatLong().latitude, mapSize);
  int halfBitmapWidth = this.getBitmap().getWidth() / 2;
  int halfBitmapHeight = this.getBitmap().getHeight() / 2;
  int top = (int) Math.round(radius * Math.sin(theta)) + topGroup + this.getVerticalOffset();
  int right = left + this.getBitmap().getWidth();
  int bottom = top + this.getBitmap().getHeight();

代码示例来源：origin: org.mapsforge/mapsforge-core

public SymbolContainer(Point point, Display display, int priority, Bitmap symbol, float theta, boolean alignCenter) {
  super(point, display, priority);
  this.symbol = symbol;
  this.theta = theta;
  this.alignCenter = alignCenter;
  if (alignCenter) {
    double halfWidth = this.symbol.getWidth() / 2d;
    double halfHeight = this.symbol.getHeight() / 2d;
    this.boundary = new Rectangle(-halfWidth, -halfHeight, halfWidth, halfHeight);
  } else {
    this.boundary = new Rectangle(0, 0, this.symbol.getWidth(), this.symbol.getHeight());
  }
  this.symbol.incrementRefCount();
}

代码示例来源：origin: sytolk/TaxiAndroidOpen

@UiThread
void showCarPosition(Cars cars) {
  if (TaxiApplication.isMapVisible() && cars != null) {
    //final List<Layer> overlayItems = carsOverlay.getOverlayItems();
    //overlayItems.clear();
    TextView bubbleView = new TextView(this);
    Utils.setBackground(bubbleView, getResources().getDrawable(R.drawable.balloon_overlay_unfocused));
    bubbleView.setGravity(Gravity.CENTER);
    bubbleView.setMaxEms(20);
    bubbleView.setTextSize(15);
    bubbleView.setTextColor(Color.BLACK);
    bubbleView.setText(cars.getNumber());
    bubble = Utils.viewToBitmap(this, bubbleView);
    bubble.incrementRefCount();
    if (cars.getCurrPosNorth() != null && cars.getCurrPosEast() != null) {
      Marker marker = new Marker(new LatLong(cars.getCurrPosNorth(), cars.getCurrPosEast()), bubble, 0, -bubble.getHeight() / 2);
      //marker.setDisplayModel(this.mapViews.get(0).getModel().displayModel);
      carsOverlay.add(marker);
      mapView.getLayerManager().getLayers().add(marker);
      //Log.i(TAG, "Car:" + cars.getNumber());
    }
    //carsOverlay.requestRedraw();
  }
}