安卓:裁剪图像,以特定的大小图像、大小

2023-09-05 07:32:11 作者:但愿以后你会感动

我的目的是让用户从库中选择一个图像,然后有一个种植活动上来。但是,我需要定义裁剪掩模被锁定到一定尺寸,然后,用户只需重新定位它,以显示图像的一部分的矩形。

这是如何做到这一点做任何想法?

感谢

-T

解决方案

 意向意图=新的意图(Intent.ACTION_GET_CONTENT,空)
            .setType(图像/ *)
            .putExtra(裁剪,真)
            .putExtra(aspectX宽)
            .putExtra(aspectY,高度)
            .putExtra(outputX宽)
            .putExtra(outputY,高度)
            .putExtra(规模化,真)
            .putExtra(scaleUpIfNeeded,真)
            .putExtra(MediaStore.EXTRA_OUTPUT,Uri.fromFile(F))
            .putExtra(OUTPUTFORMAT,Bitmap.Com pressFormat.JPEG.toString());
 

如何用系统自带的画图裁剪一定大小的图片

My intention is to have the user pick an image from the gallery, then have a cropping activity come up. However, I need the rectangle that defines the cropping mask to be locked to a certain dimension and then the user simply repositions it to display a portion of an image.

Any ideas on how this would be done?

Thanks

-T

解决方案

Intent intent = new Intent(Intent.ACTION_GET_CONTENT, null)
            .setType("image/*")
            .putExtra("crop", "true")
            .putExtra("aspectX", width)
            .putExtra("aspectY", height)
            .putExtra("outputX", width)
            .putExtra("outputY", height)
            .putExtra("scale", true)
            .putExtra("scaleUpIfNeeded", true)
            .putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(f))
            .putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());