[問題]怎麼查app佔手機記憶體和cpu使用量?
買了一台新的 Android 手機，但是使用了很長一段時間後，
有天忽然覺得手機好像不是那麼順暢了，電池用得比以前兇，
甚至默默的快要把儲存空間吃完了~
通常都是安裝的某個 App 造成的，
因為 App 常駐佔用記憶體導致效能變慢，
因為 App 有大量同步或執行動作導致電力消耗，
或者是 App 本身下載快取太多資料導致佔用空間。
請問怎麼查app使用手機記憶體和cpu的使用量呢?
如果執行太多app怎麼刪除?
還是買記憶卡把app裝在裡面呢?
有app佔cpu太多排名嗎?
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