android -------- 流式布局，支持单选多选等

Posted 2022-07-13 zhangqie

最近开发中有流式标签这个功能，网上学了下，来分享一下

android 流式布局，支持单选、多选等，适合用于产品标签等。

效果图：

 

 

用法：

dependencies 
 compile ‘com.hyman:flowlayout-lib:1.1.2‘

 

布局：

   <!--max_select：-1为不限制选择数量，>=1的数字为控制选择tag的数量-->
    <com.zhy.view.flowlayout.TagFlowLayout
        android:id="@+id/id_flowlayout"
        zhy:max_select="-1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="20dp">
    </com.zhy.view.flowlayout.TagFlowLayout>

代码：

 

public class FlowlayoutActivity extends AppCompatActivity 

    TagFlowLayout tagFlowLayout;
    private List<String> list;
    private LayoutInflater layoutInflater;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) 
        super.onCreate(savedInstanceState);
        setContentView(R.layout.flowlayout_activity);

        list= new ArrayList<>();
        list.add("新闻");
        list.add("美食");
        list.add("体育");
        list.add("生活号");
        list.add("预留");
        list.add("娱乐");
        list.add("杭州市");
        list.add("太行");
        list.add("舞蹈");
        list.add("直播");
        list.add("新闻");
        list.add("美食");
        list.add("体育");
        list.add("生活号");
        list.add("预留");
        list.add("娱乐");
        list.add("杭州市");
        list.add("太行");
        list.add("舞蹈");
        list.add("直播");
        initView();
    


    private void initView()
        layoutInflater = LayoutInflater.from(this);
        tagFlowLayout = findViewById(R.id.id_flowlayout);

        tagFlowLayout.setAdapter(new TagAdapter<String>(list)
        
            @Override
            public View getView(FlowLayout parent, int position, String s)
            
                TextView tv = (TextView) layoutInflater.inflate(R.layout.flowlayout_item_tv,
                        tagFlowLayout, false);
                tv.setText(s);
                return tv;
            
        );

        tagFlowLayout.setOnTagClickListener(new TagFlowLayout.OnTagClickListener()
        
            @Override
            public boolean onTagClick(View view, int position, FlowLayout parent)
            
                //得到点击的值
                Toast.makeText(getApplicationContext(), list.get(position), Toast.LENGTH_SHORT).show();
                return true;
            
        );

        tagFlowLayout.setOnSelectListener(new TagFlowLayout.OnSelectListener() 
            @Override
            public void onSelected(Set<Integer> selectPosSet) 
                Log.i("得到下标的集合",selectPosSet.toString());
                //得到下标的集合
                //Toast.makeText(getApplicationContext(),  selectPosSet.toString()+"s", Toast.LENGTH_SHORT).show();
            
        );


        /*//预先设置选中
        mAdapter.setSelectedList(1,3,5,7,8,9);
        //获得所有选中的pos集合
        flowLayout.getSelectedList();*/
    

 

上图日志：

 

代码文档：https://github.com/hongyangAndroid/FlowLayout