流式布局，仿照网易标签栏实现，可拖拽
<com.study.library.widget.TabMoveLayout
android:id="@+id/tab_move_layout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:clickable="true"
app:itemNum="4"
/>
app:itemNum:"the count of one line"-int
app:widthMargin:"the width between two tag"-int
app:heightMargin:"the height between two line"-int
app:itemWidth:"the tag's width"-int
app:itemHeight:"the tag's height"-int
app:textColor:"the tag's textcolor"-color
app:tabBac:"the tag's bac"-ref
app:textSize:"the tag's textsize"-dimen
you just need to bind the datasource and set the tag bac
tab_move_layout.setChildView(List<String> data, int bacID);