你必须开发简单的逻辑。假设你有连接,然后下载所有图像。现在你有两种方式在没有连接时访问这些图像-----
Store all images in data base as blob(But it not feasible to store huge amount
of data to database)
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第二..
Store all images in sdcard(by making a folder in it) and now store link of these
images in data base Table.Suppose you donot have connection then first fetch
image path from DB Table then fetch file from sdcard and display
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