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ActionMode的重载方法onCreateOptionsMenu在activity的整个周期中只被调用一次,之后都不会变化,所以无法动态更新选中项的数量。之后改换onClicksMenu这个方法来获取,这个方法每次点击菜单都会被调用,所以我的实现中,只能点击一下Actionmode栏才会更新数量。
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ActionMode的重载方法onCreateOptionsMenu在activity的整个周期中只被调用一次,之后都不会变化,所以无法动态更新选中项的数量。之后改换onClicksMenu这个方法来获取,这个方法每次点击菜单都会被调用,所以我的实现中,只能点击一下Actionmode栏才会更新数量。
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