Android 根据URI获取图片（从相册选择图片后返回）

ImportSUC

于 2016-02-29 12:13:06 发布

阅读量2k

点赞数

文章标签： android 图片

本文链接：https://blog.youkuaiyun.com/yiranhaiziqi/article/details/50764552

版权

private Bitmap getBitmapFromUri(Uri uri) {
        Bitmap bitmap = null;
        try {
            BitmapFactory.Options options = new BitmapFactory.Options();
            int picWidth = options.outWidth;
            int picHeight = options.outHeight;
            WindowManager windowManager = getWindowManager();
            Display display = windowManager.getDefaultDisplay();
            int screenWidth = display.getWidth();
            int screenHeight = display.getHeight();
            options.inSampleSize = 1;
            if (picWidth > picHeight) {
                if (picWidth > screenWidth)
                    options.inSampleSize = picWidth / screenWidth;
            } else {
                if (picHeight > screenHeight)
                    options.inSampleSize = picHeight / screenHeight;
            }
            options.inJustDecodeBounds = false;
            bitmap = BitmapFactory.decodeStream(getContentResolver()
                    .openInputStream(uri), null, options);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
        return bitmap;
    }