流式佈局+SQLite存儲，歷史記錄的存儲和刪除

1.先解決流式佈局的FrameLayout，以方便拉入佈局界面 public class FlowLayout extends FrameLayout { private final static int H_DISTANCE=20;//水平間距20 private final static int V_DISTANCE=20;//豎直間距20 public FlowLayout(@NonNull

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