ImageUtil.java 文件源码

public static File getScaledImageFileWithMD5(File imageFile, String mimeType) {
    String filePath = imageFile.getPath();

    if (!isInvalidPictureFile(mimeType)) {
        return null;
    }

    String tempFilePath = getTempFilePath(FileUtil.getExtensionName(filePath));
    File tempImageFile = AttachmentStore.create(tempFilePath);
    if (tempImageFile == null) {
        return null;
    }

    CompressFormat compressFormat = CompressFormat.JPEG;
    // 压缩数值由第三方开发者自行决定
    int maxWidth = 720;
    int quality = 60;

    if (ImageUtil.scaleImage(imageFile, tempImageFile, maxWidth, compressFormat, quality)) {
        return tempImageFile;
    } else {
        return null;
    }
}