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

Matrix.<init>介绍

暂无

代码示例

代码示例来源：origin: PhilJay/MPAndroidChart

/**
 * Sets the scale factor to the specified values. x and y is pivot.
 *
 * @param scaleX
 * @param scaleY
 * @param x
 * @param y
 * @return
 */
public Matrix setZoom(float scaleX, float scaleY, float x, float y) {
  Matrix save = new Matrix();
  save.set(mMatrixTouch);
  save.setScale(scaleX, scaleY, x, y);
  return save;
}

代码示例来源：origin: PhilJay/MPAndroidChart

/**
 * Post-scales by the specified scale factors.
 *
 * @param scaleX
 * @param scaleY
 * @return
 */
public Matrix zoom(float scaleX, float scaleY) {
  Matrix save = new Matrix();
  zoom(scaleX, scaleY, save);
  return save;
}

代码示例来源：origin: PhilJay/MPAndroidChart

/**
 * Zooms out by 0.7f, x and y are the coordinates (in pixels) of the zoom
 * center.
 */
public Matrix zoomOut(float x, float y) {
  Matrix save = new Matrix();
  zoomOut(x, y, save);
  return save;
}

代码示例来源：origin: PhilJay/MPAndroidChart

/**
 * Sets the scale factor to the specified values.
 *
 * @param scaleX
 * @param scaleY
 * @return
 */
public Matrix setZoom(float scaleX, float scaleY) {
  Matrix save = new Matrix();
  setZoom(scaleX, scaleY, save);
  return save;
}

代码示例来源：origin: PhilJay/MPAndroidChart

/**
 * Resets all zooming and dragging and makes the chart fit exactly it's
 * bounds.
 */
public Matrix fitScreen() {
  Matrix save = new Matrix();
  fitScreen(save);
  return save;
}

代码示例来源：origin: PhilJay/MPAndroidChart

/**
 * Post-translates to the specified points.  Less Performant.
 *
 * @param transformedPts
 * @return
 */
public Matrix translate(final float[] transformedPts) {
  Matrix save = new Matrix();
  translate(transformedPts, save);
  return save;
}

代码示例来源：origin: PhilJay/MPAndroidChart

/**
 * Zooms in by 1.4f, x and y are the coordinates (in pixels) of the zoom
 * center.
 *
 * @param x
 * @param y
 */
public Matrix zoomIn(float x, float y) {
  Matrix save = new Matrix();
  zoomIn(x, y, save);
  return save;
}

代码示例来源：origin: Curzibn/Luban

private Bitmap rotatingImage(Bitmap bitmap, int angle) {
 Matrix matrix = new Matrix();
 matrix.postRotate(angle);
 return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
}

代码示例来源：origin: PhilJay/MPAndroidChart

/**
 * Post-scales by the specified scale factors. x and y is pivot.
 *
 * @param scaleX
 * @param scaleY
 * @param x
 * @param y
 * @return
 */
public Matrix zoom(float scaleX, float scaleY, float x, float y) {
  Matrix save = new Matrix();
  zoom(scaleX, scaleY, x, y, save);
  return save;
}

代码示例来源：origin: bumptech/glide

FixedSizeDrawable(State state, Drawable wrapped) {
 this.state = Preconditions.checkNotNull(state);
 this.wrapped = Preconditions.checkNotNull(wrapped);
 // We will do our own scaling.
 wrapped.setBounds(0, 0, wrapped.getIntrinsicWidth(), wrapped.getIntrinsicHeight());
 matrix = new Matrix();
 wrappedRect = new RectF(0, 0, wrapped.getIntrinsicWidth(), wrapped.getIntrinsicHeight());
 bounds = new RectF();
}

代码示例来源：origin: nostra13/Android-Universal-Image-Loader

@Override
protected void onBoundsChange(Rect bounds) {
  super.onBoundsChange(bounds);
  mRect.set(0, 0, bounds.width(), bounds.height());
  radius = Math.min(bounds.width(), bounds.height()) / 2;
  strokeRadius = radius - strokeWidth / 2;
  // Resize the original bitmap to fit the new bound
  Matrix shaderMatrix = new Matrix();
  shaderMatrix.setRectToRect(mBitmapRect, mRect, Matrix.ScaleToFit.FILL);
  bitmapShader.setLocalMatrix(shaderMatrix);
}

代码示例来源：origin: nostra13/Android-Universal-Image-Loader

@Override
protected void onBoundsChange(Rect bounds) {
  super.onBoundsChange(bounds);
  mRect.set(margin, margin, bounds.width() - margin, bounds.height() - margin);
  
  // Resize the original bitmap to fit the new bound
  Matrix shaderMatrix = new Matrix();
  shaderMatrix.setRectToRect(mBitmapRect, mRect, Matrix.ScaleToFit.FILL);
  bitmapShader.setLocalMatrix(shaderMatrix);
  
}

代码示例来源：origin: nostra13/Android-Universal-Image-Loader

@Override
  protected void onBoundsChange(Rect bounds) {
    super.onBoundsChange(bounds);
    RadialGradient vignette = new RadialGradient(
        mRect.centerX(), mRect.centerY() * 1.0f / 0.7f, mRect.centerX() * 1.3f,
        new int[]{0, 0, 0x7f000000}, new float[]{0.0f, 0.7f, 1.0f},
        Shader.TileMode.CLAMP);
    Matrix oval = new Matrix();
    oval.setScale(1.0f, 0.7f);
    vignette.setLocalMatrix(oval);
    paint.setShader(new ComposeShader(bitmapShader, vignette, PorterDuff.Mode.SRC_OVER));
  }
}

代码示例来源：origin: robolectric/robolectric

@Test
public void visualize_shouldReturnDescription() throws Exception {
 Canvas canvas = new Canvas(targetBitmap);
 canvas.drawBitmap(imageBitmap, new Matrix(), new Paint());
 canvas.drawBitmap(imageBitmap, new Matrix(), new Paint());
 assertEquals("Bitmap for file:/an/image.jpg transformed by Matrix[pre=[], set={}, post=[]]\n" +
   "Bitmap for file:/an/image.jpg transformed by Matrix[pre=[], set={}, post=[]]", ShadowCanvas.visualize(canvas));
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testPostTranslate() {
 final Matrix matrix1 = new Matrix();
 matrix1.postTranslate(1.0f, 1.0f);
 assertPointsEqual(mapPoint(matrix1, 1.0f, 1.0f), new PointF(2.0f, 2.0f));
 matrix1.postTranslate(2.0f, 2.0f);
 assertPointsEqual(mapPoint(matrix1, 1.0f, 1.0f), new PointF(4.0f, 4.0f));
 final Matrix matrix2 = new Matrix();
 matrix2.setScale(2.0f, 2.0f);
 matrix2.postTranslate(-5.0f, 10.0f);
 assertPointsEqual(mapPoint(matrix2, 1.0f, 1.0f), new PointF(-3.0f, 12.0f));
}

代码示例来源：origin: robolectric/robolectric

@Test
public void shouldDescribeBitmapDrawing_WithMatrix() throws Exception {
 Canvas canvas = new Canvas(targetBitmap);
 canvas.drawBitmap(imageBitmap, new Matrix(), new Paint());
 canvas.drawBitmap(imageBitmap, new Matrix(), new Paint());
 assertEquals("Bitmap for file:/an/image.jpg transformed by Matrix[pre=[], set={}, post=[]]\n" +
   "Bitmap for file:/an/image.jpg transformed by Matrix[pre=[], set={}, post=[]]", shadowOf(canvas).getDescription());
 assertEquals("Bitmap for file:/an/image.jpg transformed by Matrix[pre=[], set={}, post=[]]\n" +
   "Bitmap for file:/an/image.jpg transformed by Matrix[pre=[], set={}, post=[]]", shadowOf(targetBitmap).getDescription());
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testSetScale() {
 final Matrix matrix = new Matrix();
 matrix.setScale(2.0f, 2.0f);
 assertPointsEqual(mapPoint(matrix, 1.0f, 1.0f), new PointF(2.0f, 2.0f));
 matrix.setScale(-2.0f, -3.0f);
 assertPointsEqual(mapPoint(matrix, 2.0f, 3.0f), new PointF(-4.0f, -9.0f));
 matrix.setScale(-2.0f, -3.0f, 1.0f, 1.0f);
 assertPointsEqual(mapPoint(matrix, 2.0f, 3.0f), new PointF(-1.0f, -5.0f));
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testSetTranslate() {
 final Matrix matrix = new Matrix();
 matrix.setTranslate(2.0f, 2.0f);
 assertPointsEqual(mapPoint(matrix, 1.0f, 1.0f), new PointF(3.0f, 3.0f));
 matrix.setTranslate(-2.0f, -2.0f);
 assertPointsEqual(mapPoint(matrix, 1.0f, 1.0f), new PointF(-1.0f, -1.0f));
}

代码示例来源：origin: robolectric/robolectric

@Test
public void preOperationsAreStacked() {
 Matrix m = new Matrix();
 m.preRotate(4, 8, 15);
 m.preTranslate(16, 23);
 m.preSkew(42, 108);
 assertThat(shadowOf(m).getPreOperations()).containsExactly(
   "skew 42.0 108.0",
   "translate 16.0 23.0",
   "rotate 4.0 8.0 15.0"
 );
}

代码示例来源：origin: robolectric/robolectric

@Test
public void setOperationsOverride() {
 Matrix m = new Matrix();
 m.setRotate(4);
 m.setRotate(8);
 m.setRotate(15);
 m.setRotate(16);
 m.setRotate(23);
 m.setRotate(42);
 m.setRotate(108);
 assertThat(shadowOf(m).getSetOperations()).containsEntry("rotate", "108.0");
}