Android Image捕获功能不再适用于其他时间
作者:互联网
我创建了一个应用程序,每隔一分钟捕获一次图像并将其上传到服务器.
该应用程序在手机上运行良好,但当我在平板电脑上运行相同的应用程序时,它会捕获图像并上传一次;下次它显示黑屏.
我现在应该怎么做?
解决方法:
我找到了解决方法.我的相机无法在预览时设置参数.
所以我找到了一个很好的功能来设置平板电脑的相机参数.
private Size getOptimalPreviewSize(List<Size> sizes, int w, int h) {
// TODO Auto-generated method stub
final double ASPECT_TOLERANCE = 0.05;
double targetRatio = (double) w / h;
if (sizes == null) return null;
Size optimalSize = null;
double minDiff = Double.MAX_VALUE;
int targetHeight = h;
// Try to find an size match aspect ratio and size
for (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);
}
}
// Cannot find the one match the aspect ratio, ignore the requirement
if (optimalSize == null) {
minDiff = Double.MAX_VALUE;
for (Size size : sizes) {
if (Math.abs(size.height - targetHeight) < minDiff) {
optimalSize = size;
minDiff = Math.abs(size.height - targetHeight);
}
}
}
return optimalSize;
}
标签:image-uploading,android,android-camera 来源: https://codeday.me/bug/20190902/1793114.html