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

  1. /** Applies a texture rotation to a {@link TextureView}. */
  2. private static void applyTextureViewRotation(TextureView textureView, int textureViewRotation) {
  3.  float textureViewWidth = textureView.getWidth();
  4.  float textureViewHeight = textureView.getHeight();
  5.  if (textureViewWidth == 0 || textureViewHeight == 0 || textureViewRotation == 0) {
  6.   textureView.setTransform(null);
  7.  } else {
  8.   Matrix transformMatrix = new Matrix();
  9.   float pivotX = textureViewWidth / 2;
  10.   float pivotY = textureViewHeight / 2;
  11.   transformMatrix.postRotate(textureViewRotation, pivotX, pivotY);
  12.   // After rotation, scale the rotated texture to fit the TextureView size.
  13.   RectF originalTextureRect = new RectF(0, 0, textureViewWidth, textureViewHeight);
  14.   RectF rotatedTextureRect = new RectF();
  15.   transformMatrix.mapRect(rotatedTextureRect, originalTextureRect);
  16.   transformMatrix.postScale(
  17.     textureViewWidth / rotatedTextureRect.width(),
  18.     textureViewHeight / rotatedTextureRect.height(),
  19.     pivotX,
  20.     pivotY);
  21.   textureView.setTransform(transformMatrix);
  22.  }
  23. }

代码示例来源：origin: vondear/RxTool

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

代码示例来源：origin: google/cameraview

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

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

  1. break;
  2. super.setTransform(transform);

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

  1. private void startPreviewIfReady() {
  2.   if (currentSurfaceSize != null && previewSize != null && surfaceRect != null) {
  3.     if (surfaceView != null && currentSurfaceSize.equals(new Size(surfaceRect.width(), surfaceRect.height()))) {
  4.       startCameraPreview(new CameraSurface(surfaceView.getHolder()));
  5.     } else if(textureView != null && textureView.getSurfaceTexture() != null) {
  6.       if(previewSize != null) {
  7.         Matrix transform = calculateTextureTransform(new Size(textureView.getWidth(), textureView.getHeight()), previewSize);
  8.         textureView.setTransform(transform);
  9.       }
  10.       startCameraPreview(new CameraSurface(textureView.getSurfaceTexture()));
  11.     } else {
  12.       // Surface is not the correct size yet
  13.     }
  14.   }
  15. }

代码示例来源：origin: vbier/habpanelviewer

  1. @Override
  2. public void setDeviceRotation(int deviceRotation) {
  3.   if (mCamera != null) {
  4.     mActivity.runOnUiThread(() -> mPreviewView.setTransform(new Matrix()));
  5.     int result = (mCameraOrientation + deviceRotation * 90) % 360;
  6.     result = (360 - result) % 360;
  7.     Log.v(TAG, "setting camera display orientation " + result);
  8.     mCamera.setDisplayOrientation(result);
  9.     mDeviceOrientation = deviceRotation;
  10.   }
  11. }

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

  1. private void setCorrectRotation() {
  2.   int viewWidth = textureView.getWidth();
  3.   int viewHeight = textureView.getHeight();
  4.   Matrix matrix = new Matrix();
  5.   matrix.reset();
  6.   int px = viewWidth / 2;
  7.   int py = viewHeight / 2;
  8.   matrix.postRotate(rotationDegree, px, py);
  9.   float ratio = (float) viewHeight / viewWidth;
  10.   matrix.postScale(1 / ratio, ratio, px, py);
  11.   textureView.setTransform(matrix);
  12. }

代码示例来源：origin: Manuiq/ZoomableTextureView

  1. /**
  2.  * Applies a texture rotation to a {@link TextureView}.
  3.  */
  4. private static void applyTextureViewRotation(TextureView textureView, int textureViewRotation) {
  5.   float textureViewWidth = textureView.getWidth();
  6.   float textureViewHeight = textureView.getHeight();
  7.   if (textureViewWidth == 0 || textureViewHeight == 0 || textureViewRotation == 0) {
  8.     textureView.setTransform(null);
  9.   } else {
  10.     Matrix transformMatrix = new Matrix();
  11.     float pivotX = textureViewWidth / 2;
  12.     float pivotY = textureViewHeight / 2;
  13.     transformMatrix.postRotate(textureViewRotation, pivotX, pivotY);
  14.     // After rotation, scale the rotated texture to fit the TextureView size.
  15.     RectF originalTextureRect = new RectF(0, 0, textureViewWidth, textureViewHeight);
  16.     RectF rotatedTextureRect = new RectF();
  17.     transformMatrix.mapRect(rotatedTextureRect, originalTextureRect);
  18.     transformMatrix.postScale(
  19.         textureViewWidth / rotatedTextureRect.width(),
  20.         textureViewHeight / rotatedTextureRect.height(),
  21.         pivotX,
  22.         pivotY);
  23.     textureView.setTransform(transformMatrix);
  24.   }
  25. }

代码示例来源：origin: stackoverflow.com

  1. TextureView textureView = (TextureView) findViewById( R.id.texture );
  2. Matrix m = new Matrix();
  3. // Do matrix creation here.
  4. textureView.setTransform( m );
  6. // When you need to get the Bitmap
  7. Bitmap bitmap = textureView.getBitmap();
  8. 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

  1. public static void adjustAspectRatio(TextureView textureView, int videoWidth, int videoHeight) {
  2.   int viewWidth = textureView.getWidth();
  3.   int viewHeight = textureView.getHeight();
  4.   double aspectRatio = (double) videoHeight / videoWidth;
  5.   int newWidth, newHeight;
  6.   if (viewHeight > (int) (viewWidth * aspectRatio)) {
  7.     // limited by narrow width; restrict height
  8.     newWidth = viewWidth;
  9.     newHeight = (int) (viewWidth * aspectRatio);
  10.   } else {
  11.     // limited by short height; restrict width
  12.     newWidth = (int) (viewHeight / aspectRatio);
  13.     newHeight = viewHeight;
  14.   }
  15.   int xoff = (viewWidth - newWidth) / 2;
  16.   int yoff = (viewHeight - newHeight) / 2;
  17.   Matrix txform = new Matrix();
  18.   textureView.getTransform(txform);
  19.   txform.setScale((float) newWidth / viewWidth, (float) newHeight / viewHeight);
  20.   txform.postTranslate(xoff, yoff);
  21.   textureView.setTransform(txform);
  22. }

代码示例来源：origin: vbier/habpanelviewer

  1. private void configureTransform(Point previewSize, int rotation) {
  2.   if (null == mPreviewView || null == mActivity) {
  3.     return;
  4.   }
  5.   Matrix matrix = new Matrix();
  6.   RectF viewRect = new RectF(0, 0, mPreviewView.getWidth(), mPreviewView.getHeight());
  7.   RectF bufferRect = new RectF(0, 0, previewSize.y, previewSize.x);
  8.   float centerX = viewRect.centerX();
  9.   float centerY = viewRect.centerY();
  10.   if (Surface.ROTATION_90 == rotation || Surface.ROTATION_270 == rotation) {
  11.     bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());
  12.     matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);
  13.     float scale = Math.max(
  14.         (float) mPreviewView.getHeight() / previewSize.y,
  15.         (float) mPreviewView.getWidth() / previewSize.x);
  16.     matrix.postScale(scale, scale, centerX, centerY);
  17.   }
  18.   matrix.postRotate(-90 * rotation, centerX, centerY);
  19.   mPreviewView.setTransform(matrix);
  20. }

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

  1. private void configureTransform(int viewWidth, int viewHeight) {
  2.   if (null == textureView || null == previewSize || null == context) {
  3.     return;
  4.   }
  5.   int rotation = orientation;
  6.   Matrix matrix = new Matrix();
  7.   RectF viewRect = new RectF(0, 0, viewWidth, viewHeight);
  8.   RectF bufferRect = new RectF(0, 0, previewSize.getHeight(), previewSize.getWidth());
  9.   float centerX = viewRect.centerX();
  10.   float centerY = viewRect.centerY();
  11.   if (Surface.ROTATION_90 == rotation || Surface.ROTATION_270 == rotation) {
  12.     bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());
  13.     matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);
  14.     float scale = Math.max(
  15.         (float) viewHeight / previewSize.getHeight(),
  16.         (float) viewWidth / previewSize.getWidth());
  17.     matrix.postScale(scale, scale, centerX, centerY);
  18.     matrix.postRotate(90 * (rotation - 2), centerX, centerY);
  19.   } else if (Surface.ROTATION_180 == rotation) {
  20.     matrix.postRotate(180, centerX, centerY);
  21.   }
  22.   textureView.setTransform(matrix);
  23. }

代码示例来源：origin: yixia/VitamioBundleStudio

  1. /**
  2.  * Sets the TextureView transform to preserve the aspect ratio of the video.
  3.  */
  4. private void adjustAspectRatio(int videoWidth, int videoHeight) {
  5.  int viewWidth = mTextureView.getWidth();
  6.  int viewHeight = mTextureView.getHeight();
  7.  double aspectRatio = (double) videoHeight / videoWidth;
  8.  int newWidth, newHeight;
  9.  if (viewHeight > (int) (viewWidth * aspectRatio)) {
  10.   // limited by narrow width; restrict height
  11.   newWidth = viewWidth;
  12.   newHeight = (int) (viewWidth * aspectRatio);
  13.  } else {
  14.   // limited by short height; restrict width
  15.   newWidth = (int) (viewHeight / aspectRatio);
  16.   newHeight = viewHeight;
  17.  }
  18.  int xoff = (viewWidth - newWidth) / 2;
  19.  int yoff = (viewHeight - newHeight) / 2;
  20.  Log.v(TAG, "video=" + videoWidth + "x" + videoHeight + " view=" + viewWidth + "x" + viewHeight
  21.    + " newView=" + newWidth + "x" + newHeight + " off=" + xoff + "," + yoff);
  22.  Matrix txform = new Matrix();
  23.  mTextureView.getTransform(txform);
  24.  txform.setScale((float) newWidth / viewWidth, (float) newHeight / viewHeight);
  25.  //txform.postRotate(10);          // just for fun
  26.  txform.postTranslate(xoff, yoff);
  27.  mTextureView.setTransform(txform);
  28. }

代码示例来源：origin: chengzichen/KrGallery

  1. textureView.setTransform(txform);

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

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

代码示例来源：origin: mengzhidaren/RecyclerViewVideoDemo

  1. textureView.setTransform(txform);

代码示例来源：origin: googlecreativelab/shadercam

  1. mTextureView.setTransform(matrix);

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

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

代码示例来源：origin: Tastenkunst/brfv4_android_examples

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

代码示例来源：origin: stackoverflow.com

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

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