android.view.TextureView.setTransform()方法的使用及代码示例

x33g5p2x  于2022-01-29 转载在 其他  
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本文整理了Java中android.view.TextureView.setTransform()方法的一些代码示例，展示了TextureView.setTransform()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。TextureView.setTransform()方法的具体详情如下：
包路径：android.view.TextureView
类名称：TextureView
方法名：setTransform

TextureView.setTransform介绍

暂无

代码示例

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: vondear/RxTool

matrix.postRotate(180, getWidth() / 2, getHeight() / 2);
mTextureView.setTransform(matrix);

代码示例来源：origin: google/cameraview

matrix.postRotate(180, getWidth() / 2, getHeight() / 2);
mTextureView.setTransform(matrix);

代码示例来源：origin: koral--/android-gif-drawable

break;
super.setTransform(transform);

代码示例来源：origin: journeyapps/zxing-android-embedded

private void startPreviewIfReady() {
  if (currentSurfaceSize != null && previewSize != null && surfaceRect != null) {
    if (surfaceView != null && currentSurfaceSize.equals(new Size(surfaceRect.width(), surfaceRect.height()))) {
      startCameraPreview(new CameraSurface(surfaceView.getHolder()));
    } else if(textureView != null && textureView.getSurfaceTexture() != null) {
      if(previewSize != null) {
        Matrix transform = calculateTextureTransform(new Size(textureView.getWidth(), textureView.getHeight()), previewSize);
        textureView.setTransform(transform);
      }
      startCameraPreview(new CameraSurface(textureView.getSurfaceTexture()));
    } else {
      // Surface is not the correct size yet
    }
  }
}

代码示例来源：origin: vbier/habpanelviewer

@Override
public void setDeviceRotation(int deviceRotation) {
  if (mCamera != null) {
    mActivity.runOnUiThread(() -> mPreviewView.setTransform(new Matrix()));
    int result = (mCameraOrientation + deviceRotation * 90) % 360;
    result = (360 - result) % 360;
    Log.v(TAG, "setting camera display orientation " + result);
    mCamera.setDisplayOrientation(result);
    mDeviceOrientation = deviceRotation;
  }
}

代码示例来源：origin: QuickBlox/ChatMessagesAdapter-android

private void setCorrectRotation() {
  int viewWidth = textureView.getWidth();
  int viewHeight = textureView.getHeight();
  Matrix matrix = new Matrix();
  matrix.reset();
  int px = viewWidth / 2;
  int py = viewHeight / 2;
  matrix.postRotate(rotationDegree, px, py);
  float ratio = (float) viewHeight / viewWidth;
  matrix.postScale(1 / ratio, ratio, px, py);
  textureView.setTransform(matrix);
}

代码示例来源：origin: Manuiq/ZoomableTextureView

/**
 * 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: stackoverflow.com

TextureView textureView = (TextureView) findViewById( R.id.texture );
Matrix m = new Matrix();
// Do matrix creation here.
textureView.setTransform( m );

// When you need to get the Bitmap
Bitmap bitmap = textureView.getBitmap();
bitmap = Bitmap.createBitmap( bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), textureView.getTransform( null ), true );

代码示例来源：origin: square1-io/rich-text-android

public static void adjustAspectRatio(TextureView textureView, int videoWidth, int videoHeight) {
  int viewWidth = textureView.getWidth();
  int viewHeight = textureView.getHeight();
  double aspectRatio = (double) videoHeight / videoWidth;
  int newWidth, newHeight;
  if (viewHeight > (int) (viewWidth * aspectRatio)) {
    // limited by narrow width; restrict height
    newWidth = viewWidth;
    newHeight = (int) (viewWidth * aspectRatio);
  } else {
    // limited by short height; restrict width
    newWidth = (int) (viewHeight / aspectRatio);
    newHeight = viewHeight;
  }
  int xoff = (viewWidth - newWidth) / 2;
  int yoff = (viewHeight - newHeight) / 2;
  Matrix txform = new Matrix();
  textureView.getTransform(txform);
  txform.setScale((float) newWidth / viewWidth, (float) newHeight / viewHeight);
  txform.postTranslate(xoff, yoff);
  textureView.setTransform(txform);
}

代码示例来源：origin: vbier/habpanelviewer

private void configureTransform(Point previewSize, int rotation) {
  if (null == mPreviewView || null == mActivity) {
    return;
  }
  Matrix matrix = new Matrix();
  RectF viewRect = new RectF(0, 0, mPreviewView.getWidth(), mPreviewView.getHeight());
  RectF bufferRect = new RectF(0, 0, previewSize.y, previewSize.x);
  float centerX = viewRect.centerX();
  float centerY = viewRect.centerY();
  if (Surface.ROTATION_90 == rotation || Surface.ROTATION_270 == rotation) {
    bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());
    matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);
    float scale = Math.max(
        (float) mPreviewView.getHeight() / previewSize.y,
        (float) mPreviewView.getWidth() / previewSize.x);
    matrix.postScale(scale, scale, centerX, centerY);
  }
  matrix.postRotate(-90 * rotation, centerX, centerY);
  mPreviewView.setTransform(matrix);
}

代码示例来源：origin: fanbaoying/FBYIDCardRecognition-Android

private void configureTransform(int viewWidth, int viewHeight) {
  if (null == textureView || null == previewSize || null == context) {
    return;
  }
  int rotation = orientation;
  Matrix matrix = new Matrix();
  RectF viewRect = new RectF(0, 0, viewWidth, viewHeight);
  RectF bufferRect = new RectF(0, 0, previewSize.getHeight(), previewSize.getWidth());
  float centerX = viewRect.centerX();
  float centerY = viewRect.centerY();
  if (Surface.ROTATION_90 == rotation || Surface.ROTATION_270 == rotation) {
    bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());
    matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);
    float scale = Math.max(
        (float) viewHeight / previewSize.getHeight(),
        (float) viewWidth / previewSize.getWidth());
    matrix.postScale(scale, scale, centerX, centerY);
    matrix.postRotate(90 * (rotation - 2), centerX, centerY);
  } else if (Surface.ROTATION_180 == rotation) {
    matrix.postRotate(180, centerX, centerY);
  }
  textureView.setTransform(matrix);
}

代码示例来源：origin: yixia/VitamioBundleStudio

/**
 * Sets the TextureView transform to preserve the aspect ratio of the video.
 */
private void adjustAspectRatio(int videoWidth, int videoHeight) {
 int viewWidth = mTextureView.getWidth();
 int viewHeight = mTextureView.getHeight();
 double aspectRatio = (double) videoHeight / videoWidth;
 int newWidth, newHeight;
 if (viewHeight > (int) (viewWidth * aspectRatio)) {
  // limited by narrow width; restrict height
  newWidth = viewWidth;
  newHeight = (int) (viewWidth * aspectRatio);
 } else {
  // limited by short height; restrict width
  newWidth = (int) (viewHeight / aspectRatio);
  newHeight = viewHeight;
 }
 int xoff = (viewWidth - newWidth) / 2;
 int yoff = (viewHeight - newHeight) / 2;
 Log.v(TAG, "video=" + videoWidth + "x" + videoHeight + " view=" + viewWidth + "x" + viewHeight
   + " newView=" + newWidth + "x" + newHeight + " off=" + xoff + "," + yoff);
 Matrix txform = new Matrix();
 mTextureView.getTransform(txform);
 txform.setScale((float) newWidth / viewWidth, (float) newHeight / viewHeight);
 //txform.postRotate(10);          // just for fun
 txform.postTranslate(xoff, yoff);
 mTextureView.setTransform(txform);
}

代码示例来源：origin: chengzichen/KrGallery

textureView.setTransform(txform);

代码示例来源：origin: org.boofcv/boofcv-android

matrix.postRotate(90 * (rotation - 2), centerX, centerY);
mTextureView.setTransform(matrix);

代码示例来源：origin: mengzhidaren/RecyclerViewVideoDemo

textureView.setTransform(txform);

代码示例来源：origin: googlecreativelab/shadercam

mTextureView.setTransform(matrix);

代码示例来源：origin: RameshBhupathi/ImagePicker-OLX

matrix.postRotate(180, getWidth() / 2, getHeight() / 2);
mTextureView.setTransform(matrix);

代码示例来源：origin: Tastenkunst/brfv4_android_examples

RectF surfaceRect = new RectF(0, 0, width, height);
mMatrix.setRectToRect(surfaceRect, viewRect, Matrix.ScaleToFit.CENTER);
mTextureView.setTransform(mMatrix);

代码示例来源：origin: stackoverflow.com

mTextureView.setTransform(transform);
Log.i("onSurfaceTextureAvailable", "Transform: " + transform.toString());

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