Android 流式布局,支持单选,多选

流式布局 FlowLayout

Android流式布局,支持单选、多选等,适合用于产品标签等。
支持数组,集合,集合对象数据(Demo 中以集合对象示例)。

GitHub 地址:https://github.com/lyyRunning/MyFlowLayout

特色:

  • 以setAdapter形式注入数据
  • 直接设置selector为background即可完成标签选则的切换,类似CheckBox
  • 支持控制选择的Tag数量,比如:单选、多选
  • 支持setOnTagClickListener,当点击某个Tag回调
  • 支持setOnSelectListener,当选择某个Tag后回调
  • 支持adapter.notifyDataChanged
  • Activity重建(或者旋转)后,选择的状态自动保存

效果图:

image

简单用法:

dependencies {
    //FlowLayouty依赖
    compile 'com.hyman:flowlayout-lib:1.1.2'
    compile 'com.zhy:base-adapter:2.0.1'
}

布局声明:

 
    

支持属性:

  • max_select:-1为不限制选择数量,>=1的数字为控制选择tag的数量

  • 支持通过state=checked来控制选中和取消,也可以自己在Adapter 的onSelected和unSelected中分别处理显示。

设置数据

idFlowlayout.setAdapter(new TagAdapter(mVals)  {
       @Override
       public View getView(FlowLayout parent, int position, String s)
       {
           TextView tv = (TextView) mInflater.inflate(R.layout.tv,
                   mFlowLayout, false);
           tv.setText(s);
           return tv;
       }
   });

getView中回调,类似ListView等用法。

点击某个标签回调

 /**
    * 点击某个 Tag 返回
   */
idFlowlayout.setOnTagClickListener(new TagFlowLayout.OnTagClickListener() {
            @Override
            public boolean onTagClick(View view, int position, FlowLayout parent) {
                String tag = mVals[position];
                tvText1.setText(tag);
                Toast.makeText(SingleActivity.this, "Clicked====" + tag, Toast.LENGTH_SHORT).show();

                return true;
            }
        });

选择多个标签回调

idFlowlayout.setOnSelectListener(new TagFlowLayout.OnSelectListener() {
            @Override
            public void onSelected(Set selectPosSet) {

                tvText1.setText(String.valueOf(selectPosSet));
                Toast.makeText(MultipleSelectionActivity.this, "selectPosSet" + selectPosSet, Toast.LENGTH_SHORT).show();

            }
        });

预先设置Item选中

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

贴一个单选完整例子;

SingleActivity的活动


public class SingleActivity extends Activity {

    @BindView(R.id.id_flowlayout)
    TagFlowLayout idFlowlayout;
    @BindView(R.id.tv_text1)
    TextView tvText1;
    List list;
    TagAdapter mAdapter;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_single_choose);
        ButterKnife.bind(this);

        init();
    }

    private void init() {
        final LayoutInflater mInflater = LayoutInflater.from(this);
         list = new ArrayList<>();
        list.add(new User("Hello"));
        list.add(new User("Android"));
        list.add(new User("Weclome Hi "));
        list.add(new User("Button"));
        list.add(new User("TextView"));
        list.add(new User("Weclome Hello"));
        list.add(new User("Button Text"));
        list.add(new User("TextView"));
        list.add(new User("utton ImageView"));
        list.add(new User("Weclome"));
        list.add(new User("Hello"));
        list.add(new User("Weclome Hi "));
        list.add(new User("Button"));
        list.add(new User("TextView"));
        list.add(new User("Weclome Hello"));
        list.add(new User("Button Text"));
        list.add(new User("TextView"));
        list.add(new User("utton ImageView"));
        list.add(new User("Weclome"));
        list.add(new User("Hello"));
        list.add(new User("Weclome Hello"));

        /**
         * 点击某个 Tag 返回
         */
 idFlowlayout.setOnTagClickListener(new TagFlowLayout.OnTagClickListener() {
            @Override
   public boolean onTagClick(View view, int position, FlowLayout parent) {

                String tag = list.get(position).getName();
                tvText1.setText(tag);
Toast.makeText(SingleActivity.this, "Clicked====" + tag, Toast.LENGTH_SHORT).show();

                return true;
            }
        });

 idFlowlayout.setAdapter(mAdapter = new TagAdapter(list) {
            @Override
            public View getView(FlowLayout parent, int position, User user) {
                TextView tv = (TextView) mInflater.inflate(R.layout.tv,
                        idFlowlayout, false);
                tv.setText(user.getName());
                return tv;
            }

        });

        //设置选中的按钮
        mAdapter.setSelectedList(5);
    }

    public static void launch(Context context) {
        Intent intent = new Intent(context, SingleActivity.class);
        context.startActivity(intent);
    }
}

布局:



    

    
    


tv.xml:






User 对象:

public class User {

    public String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public User(String name) {
        this.name = name;
    }
}

tag_bg的drawable:



    

    
    


checked_bg的drawable:



    
    
    
    



normal_bg的drawable:



    
    
    


text_color的 drawable:




    
    


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