本文整理了Java中android.graphics.Matrix.mapRect()方法的一些代码示例，展示了Matrix.mapRect()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。Matrix.mapRect()方法的具体详情如下：
包路径：android.graphics.Matrix
类名称：Matrix
方法名：mapRect

Matrix.mapRect介绍

暂无

代码示例

代码示例来源：origin: PhilJay/MPAndroidChart

/**
 * Transform a rectangle with all matrices with potential animation phases.
 *
 * @param r
 */
public void rectValueToPixelHorizontal(RectF r) {
  mMatrixValueToPx.mapRect(r);
  mViewPortHandler.getMatrixTouch().mapRect(r);
  mMatrixOffset.mapRect(r);
}

代码示例来源：origin: PhilJay/MPAndroidChart

/**
 * Transform a rectangle with all matrices.
 *
 * @param r
 */
public void rectValueToPixel(RectF r) {
  mMatrixValueToPx.mapRect(r);
  mViewPortHandler.getMatrixTouch().mapRect(r);
  mMatrixOffset.mapRect(r);
}

代码示例来源：origin: PhilJay/MPAndroidChart

public void rectToPixelPhaseHorizontal(RectF r, float phaseY) {
  // multiply the height of the rect with the phase
  r.left *= phaseY;
  r.right *= phaseY;
  mMatrixValueToPx.mapRect(r);
  mViewPortHandler.getMatrixTouch().mapRect(r);
  mMatrixOffset.mapRect(r);
}

代码示例来源：origin: PhilJay/MPAndroidChart

/**
 * Transform a rectangle with all matrices with potential animation phases.
 *
 * @param r
 * @param phaseY
 */
public void rectToPixelPhase(RectF r, float phaseY) {
  // multiply the height of the rect with the phase
  r.top *= phaseY;
  r.bottom *= phaseY;
  mMatrixValueToPx.mapRect(r);
  mViewPortHandler.getMatrixTouch().mapRect(r);
  mMatrixOffset.mapRect(r);
}

代码示例来源：origin: PhilJay/MPAndroidChart

/**
 * Transform a rectangle with all matrices with potential animation phases.
 *
 * @param r
 * @param phaseY
 */
public void rectValueToPixelHorizontal(RectF r, float phaseY) {
  // multiply the height of the rect with the phase
  r.left *= phaseY;
  r.right *= phaseY;
  mMatrixValueToPx.mapRect(r);
  mViewPortHandler.getMatrixTouch().mapRect(r);
  mMatrixOffset.mapRect(r);
}

代码示例来源：origin: PhilJay/MPAndroidChart

/**
 * transforms multiple rects with all matrices
 *
 * @param rects
 */
public void rectValuesToPixel(List<RectF> rects) {
  Matrix m = getValueToPixelMatrix();
  for (int i = 0; i < rects.size(); i++)
    m.mapRect(rects.get(i));
}

代码示例来源：origin: igreenwood/SimpleCropView

private RectF calcImageRect(RectF rect, Matrix matrix) {
 RectF applied = new RectF();
 matrix.mapRect(applied, rect);
 return applied;
}

代码示例来源：origin: chrisbanes/PhotoView

/**
 * Helper method that maps the supplied Matrix to the current Drawable
 *
 * @param matrix - Matrix to map Drawable against
 * @return RectF - Displayed Rectangle
 */
private RectF getDisplayRect(Matrix matrix) {
  Drawable d = mImageView.getDrawable();
  if (d != null) {
    mDisplayRect.set(0, 0, d.getIntrinsicWidth(),
      d.getIntrinsicHeight());
    matrix.mapRect(mDisplayRect);
    return mDisplayRect;
  }
  return null;
}

代码示例来源：origin: jdamcd/android-crop

private Rect computeLayout() {
  RectF r = new RectF(cropRect.left, cropRect.top,
            cropRect.right, cropRect.bottom);
  matrix.mapRect(r);
  return new Rect(Math.round(r.left), Math.round(r.top),
          Math.round(r.right), Math.round(r.bottom));
}

代码示例来源：origin: airbnb/lottie-android

@Override public void getBounds(RectF outBounds, Matrix parentMatrix, boolean applyParents) {
 super.getBounds(outBounds, parentMatrix, applyParents);
 rect.set(0, 0, layerModel.getSolidWidth(), layerModel.getSolidHeight());
 boundsMatrix.mapRect(rect);
 outBounds.set(rect);
}

代码示例来源：origin: sephiroth74/ImageViewZoom

protected RectF getBitmapRect(Matrix supportMatrix) {
  Matrix m = getImageViewMatrix(supportMatrix);
  m.mapRect(mBitmapRectTmp, mBitmapRect);
  return mBitmapRectTmp;
}

代码示例来源：origin: airbnb/lottie-android

@Override public void getBounds(RectF outBounds, Matrix parentMatrix, boolean applyParents) {
 super.getBounds(outBounds, parentMatrix, applyParents);
 Bitmap bitmap = getBitmap();
 if (bitmap != null) {
  outBounds.set(0, 0, bitmap.getWidth() * Utils.dpScale(), bitmap.getHeight() * Utils.dpScale());
  boundsMatrix.mapRect(outBounds);
 }
}

代码示例来源：origin: jeasonlzy/ImagePicker

/**
 * @return 获取当前图片显示的矩形区域
 */
private RectF getImageMatrixRect() {
  RectF rectF = new RectF();
  rectF.set(0, 0, getDrawable().getIntrinsicWidth(), getDrawable().getIntrinsicHeight());
  matrix.mapRect(rectF);
  return rectF;
}

代码示例来源：origin: bm-x/PhotoView

private void executeTranslate() {
  mSynthesisMatrix.set(mBaseMatrix);
  mSynthesisMatrix.postConcat(mAnimaMatrix);
  setImageMatrix(mSynthesisMatrix);
  mAnimaMatrix.mapRect(mImgRect, mBaseRect);
  imgLargeWidth = mImgRect.width() > mWidgetRect.width();
  imgLargeHeight = mImgRect.height() > mWidgetRect.height();
}

代码示例来源：origin: Hitomis/transferee

private void executeTranslate() {
  mSynthesisMatrix.set(mBaseMatrix);
  mSynthesisMatrix.postConcat(mAnimaMatrix);
  setImageMatrix(mSynthesisMatrix);
  mAnimaMatrix.mapRect(mImgRect, mBaseRect);
  imgLargeWidth = mImgRect.width() > mWidgetRect.width();
  imgLargeHeight = mImgRect.height() > mWidgetRect.height();
}

代码示例来源：origin: steelkiwi/cropiwa

private void updateImageBounds() {
  realImageBounds.set(0, 0, getRealImageWidth(), getRealImageHeight());
  imageBounds.set(realImageBounds);
  imageMatrix.mapRect(imageBounds);
}

代码示例来源：origin: airbnb/lottie-android

@Override void drawLayer(Canvas canvas, Matrix parentMatrix, int parentAlpha) {
 L.beginSection("CompositionLayer#draw");
 canvas.save();
 newClipRect.set(0, 0, layerModel.getPreCompWidth(), layerModel.getPreCompHeight());
 parentMatrix.mapRect(newClipRect);
 for (int i = layers.size() - 1; i >= 0 ; i--) {
  boolean nonEmptyClip = true;
  if (!newClipRect.isEmpty()) {
   nonEmptyClip = canvas.clipRect(newClipRect);
  }
  if (nonEmptyClip) {
   BaseLayer layer = layers.get(i);
   layer.draw(canvas, parentMatrix, parentAlpha);
  }
 }
 canvas.restore();
 L.endSection("CompositionLayer#draw");
}

代码示例来源：origin: google/ExoPlayer

/** Applies a texture rotation to a {@link TextureView}. */
private static void applyTextureViewRotation(TextureView textureView, int textureViewRotation) {
 float textureViewWidth = textureView.getWidth();
 float textureViewHeight = textureView.getHeight();
 if (textureViewWidth == 0 || textureViewHeight == 0 || textureViewRotation == 0) {
  textureView.setTransform(null);
 } else {
  Matrix transformMatrix = new Matrix();
  float pivotX = textureViewWidth / 2;
  float pivotY = textureViewHeight / 2;
  transformMatrix.postRotate(textureViewRotation, pivotX, pivotY);
  // After rotation, scale the rotated texture to fit the TextureView size.
  RectF originalTextureRect = new RectF(0, 0, textureViewWidth, textureViewHeight);
  RectF rotatedTextureRect = new RectF();
  transformMatrix.mapRect(rotatedTextureRect, originalTextureRect);
  transformMatrix.postScale(
    textureViewWidth / rotatedTextureRect.width(),
    textureViewHeight / rotatedTextureRect.height(),
    pivotX,
    pivotY);
  textureView.setTransform(transformMatrix);
 }
}

代码示例来源：origin: bumptech/glide

/**
 * Rotate and/or flip the image to match the given exif orientation.
 *
 * @param pool            A pool that may or may not contain an image of the necessary
 *                        dimensions.
 * @param inBitmap        The bitmap to rotate/flip.
 * @param exifOrientation the exif orientation [1-8].
 * @return The rotated and/or flipped image or toOrient if no rotation or flip was necessary.
 */
public static Bitmap rotateImageExif(@NonNull BitmapPool pool, @NonNull Bitmap inBitmap,
  int exifOrientation) {
 if (!isExifOrientationRequired(exifOrientation)) {
  return inBitmap;
 }
 final Matrix matrix = new Matrix();
 initializeMatrixForRotation(exifOrientation, matrix);
 // From Bitmap.createBitmap.
 final RectF newRect = new RectF(0, 0, inBitmap.getWidth(), inBitmap.getHeight());
 matrix.mapRect(newRect);
 final int newWidth = Math.round(newRect.width());
 final int newHeight = Math.round(newRect.height());
 Bitmap.Config config = getNonNullConfig(inBitmap);
 Bitmap result = pool.get(newWidth, newHeight, config);
 matrix.postTranslate(-newRect.left, -newRect.top);
 result.setHasAlpha(inBitmap.hasAlpha());
 applyMatrix(inBitmap, result, matrix);
 return result;
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testMapRect() {
 final Matrix matrix = new Matrix();
 matrix.postScale(2.0f, 3.0f);
 final RectF input = new RectF(1.0f, 1.0f, 2.0f, 2.0f);
 final RectF output1 = new RectF();
 matrix.mapRect(output1, input);
 assertThat(output1)
   .isEqualTo(new RectF(2.0f, 3.0f, 4.0f, 6.0f));
 matrix.postScale(-1.0f, -1.0f);
 final RectF output2 = new RectF();
 matrix.mapRect(output2, input);
 assertThat(output2)
   .isEqualTo(new RectF(-4.0f, -6.0f, -2.0f, -3.0f));
}