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if (data.getCount() > 0) {
//构造所有图片的集合
ImageFolder allImagesFolder = new ImageFolder();
allImagesFolder.name = activity.getResources().getString(R.string.ip_all_images);
allImagesFolder.path = "/";
allImagesFolder.cover = allImages.get(0);
allImagesFolder.images = allImages;
imageFolders.add(0, allImagesFolder); //确保第一条是所有图片
}
如代码所示应该判断allImages集合是否为null
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