点击图标预览报空指针

[hardlove]

java.lang.NullPointerException: Attempt to invoke virtual method 'int android.graphics.drawable.Drawable.getIntrinsicHeight()' on a null object reference
at com.lzy.ninegrid.preview.ImagePreviewActivity.computeImageWidthAndHeight(ImagePreviewActivity.java:144)
at com.lzy.ninegrid.preview.ImagePreviewActivity.onPreDraw(ImagePreviewActivity.java:82)

原因: 必须添加

.placeholder(R.drawable.ic_default_image)

NineGridView.setImageLoader(new NineGridView.ImageLoader() {
            @Override
            public void onDisplayImage(Context context, ImageView imageView, String url) {
                Glide.with(context).load(url).placeholder(R.drawable.ic_default_image).error(R.drawable.ic_default_image).into(imageView);

            }

            @Override
            public Bitmap getCacheImage(String url) {
                return null;
            }
        });