The Listview is displaying some rows instead of all items (sometimes, it's displaying nothing), I couldn't understand why this is happenning. It occurs at first run. After that, it works well, with all items from database filled on the screen. I put vertical orientation in my linear layout xml files and wrap_content height. But the problem is not solved. The Listview is displaying some rows instead of
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Android：首次运行时只显示一些行
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