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我知道这个话题已经出现了很多次,所以我不能得到任何解决方案的工作。我正在建立一个照相亭类型的应用程序,并且除了相机的实时取景失真(图像从上到下),所有东西都可以正常工作,这会影响最终结果,因为只有相机预览才能使叠加层失真。图像在正确的高宽比下也能很好地保存。贝娄是代码,如果需要,我可以发布更多。图像失真在相机预览
Parameters params = camera.getParameters();
List<Camera.Size> supportedPreviewSizes = params.getSupportedPreviewSizes();
Camera.Size camPreviewSize = getOptimalPreviewSize(supportedPreviewSizes, width , height);
Log.d(TAG+"--",height +" : " + width);//display height and width
Log.d(TAG+"--",camPreviewSize.height +" : " + camPreviewSize.width);
params.setPreviewSize(camPreviewSize.width ,camPreviewSize.height);
camera.setPreviewDisplay(surfaceHolder);
camera.startPreview();
Calcuate预览大小
private Camera.Size getOptimalPreviewSize(List<Camera.Size> sizes, int w, int h) {
final double ASPECT_TOLERANCE = 0.1;
double targetRatio=(double)h/w;
if (sizes == null) return null;
Camera.Size optimalSize = null;
double minDiff = Double.MAX_VALUE;
int targetHeight = h;
for (Camera.Size size : sizes) {
double ratio = (double) size.width/size.height;
if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE) continue;
if (Math.abs(size.height - targetHeight) < minDiff) {
optimalSize = size;
minDiff = Math.abs(size.height - targetHeight);
}
}
if (optimalSize == null) {
minDiff = Double.MAX_VALUE;
for (Camera.Size size : sizes) {
if (Math.abs(size.height - targetHeight) < minDiff) {
optimalSize = size;
minDiff = Math.abs(size.height - targetHeight);
}
}
}
return optimalSize;
}
改变的params.setPreviewSize()
值似乎没有任何效果