52     private final TextureView mPreview;  field in TextureViewHelper
74         mPreview = preview;  in TextureViewHelper()
76         mPreview.addOnLayoutChangeListener(this);  in TextureViewHelper()
77         mPreview.setSurfaceTextureListener(this);  in TextureViewHelper()
98         int rotation = CameraUtil.getDisplayRotation(mPreview.getContext());  in onLayoutChange()
119         mPreview.setTransform(new Matrix());  in clearTransform()
186         mPreview.setTransform(matrix);  in updateTransformFullScreen()
213         mPreview.setTransform(matrix);
264         mPreview.setTransform(matrix);
276         mPreview.post(new Runnable() {
300         if (mPreview == null) {
305         mPreview.getTransform(matrix).mapRect(area);
313         Bitmap preview = mPreview.getBitmap(width, height);
314         return Bitmap.createBitmap(preview, 0, 0, width, height, mPreview.getTransform(null), true);