我已经成功使用这里的答案将相机预览旋转到竖屏:http://code.google.com/p/zxing/issues/detail?id=178#c46
但是预览本身被拉伸/扭曲了 - 高度似乎在拉伸以填充框(但也有可能是宽度太大而被挤压以适应)
有没有办法“包裹”内容,而不是让它拉伸以适应SurfaceView?
编辑:我通过修改“CameraConfigurationManager”中的“findBestPreviewSizeValue”方法并反转X和Y点(感谢下面Sean Owen的指针!)解决了它,这是代码:
private static Point findBestPreviewSizeValue(CharSequence previewSizeValueString,
Point screenResolution) {
int bestX = 0;
int bestY = 0;
int diff = Integer.MAX_VALUE;
for (String previewSize : COMMA_PATTERN.split(previewSizeValueString)) {
previewSize = previewSize.trim();
int dimPosition = previewSize.indexOf('x');
if (dimPosition < 0) {
Log.w(TAG, "Bad preview-size: " + previewSize);
continue;
}
int newX;
int newY;
try {
newY = Integer.parseInt(previewSize.substring(0, dimPosition));
newX = Integer.parseInt(previewSize.substring(dimPosition + 1));
//original:
//newX = Integer.parseInt(previewSize.substring(0, dimPosition));
//newY = Integer.parseInt(previewSize.substring(dimPosition + 1));
} catch (NumberFormatException nfe) {
Log.w(TAG, "Bad preview-size: " + previewSize);
continue;
}
int newDiff = Math.abs(newX - screenResolution.x) + Math.abs(newY - screenResolution.y);
if (newDiff == 0) {
bestX = newY;
bestY = newX;
//original:
//bestX = newX;
//bestY = newY;
break;
} else if (newDiff < diff) {
bestX = newY;
bestY = newX;
//original:
//bestX = newX;
//bestY = newY;
diff = newDiff;
}
}
if (bestX > 0 && bestY > 0) {
return new Point(bestX, bestY);
}
return null;
}