Returns the helper item held at the adapter position @param position the index of the helper item to return @return Object at that index, may be a Pa

获取ConnectivityManager

Callback when scan could not be started. @param scanState Error code (one of SCAN_FAILED_ ) for scan failure.

将字节数组转换为十六进制字符串 @param data byte[] @return 十六进制String

@param index Index into the color array of the color to display in the progress spinner.

Getter method for the list of children associated with this parent object @return list of all children associated with this specific parent object

@return The amount the progress spinner is currently rotated, between [0..1].

stop to scan bluetooth

@param show Set to true to show the arrow head on the progress spinner.

start to scan bluetooth

Collapses a specified parent item. Calls through to the {@link ExpandableRecyclerAdapter.ExpandCollapseListener} and adds children of the specified pa

Calls through to the {@link ParentViewHolder} to collapse views for each {@link RecyclerView} a specified parent is a child of. These calls to the {@c

Expands a specified parent item. Calls through to the {@link ExpandableRecyclerAdapter.ExpandCollapseListener} and adds children of the specified pare

Calls through to the {@link ParentViewHolder} to expand views for each {@link RecyclerView} a specified parent is a child of. These calls to the {@cod

格式化时间值 @param lDate @return

Method to get the number of expanded children before the specified position. @param position @return number of expanded children before the specified

Gets the {@link ParentWrapper} for a specified {@link ParentListItem} from the list of parents. @param parentObject A {@code ParentObject} in the lis

Gets the index of a {@link ParentWrapper} within the helper item list based on the index of the {@code ParentWrapper}. @param parentIndex The index o

是 endtime - starttime + 1min @param startTime @param endTime @return

检测网络是否为可用状态

判断网络连接是否有效（此时可传输数据）。 @param context @return boolean 不管wifi，还是mobile net，只有当前在连接状态（可有效传输数据）才返回true,反之false。

判断GPS是否开启，GPS或者AGPS开启一个就认为是开启的 @param context @return true 表示开启

Callback reporting an LE device found during a device scan initiated by the BluetoothAdapter#startLeScan function. @param device Identifies the remot

Reset the progress spinner to default rotation, start and end angles.

Set the colors the progress spinner alternates between. @param colors Array of integers describing the colors. Must be non-<code>null</code>.