自定义流式布局（搜索历史纪录 删除历史纪录）

1.外层布局

2.条目布局：

3.自定义view

public class FlowLayout extends LinearLayout {
    private LinearLayout layout_v;
    private Context context;
    private Button deleteAll;
    public FlowLayout(Context context) {
        super(context);
        initView(context);
    }
        public FlowLayout(Context context, AttributeSet attrs) {
        super(context, attrs);
        initView(context);
    }
       private void initView(Context context) {
        this.context = context;
        View view = LayoutInflater.from(context).inflate(R.layout.activity_main, null, false);
        addView(view);
        layout_v = view.findViewById(R.id.layout_liu);
        deleteAll = view.findViewById(R.id.deleteAll);         //清空历史记录按钮
            deleteAll.setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View v) {
                    //清空布局内所有view
                     layout_v.removeAllViews();

                }
            });
    }
    //等待调用，给集合即可
    public void setList(List list) {
        int len = 0;
        for (int i = 0; i < list.size(); i++) {
            //根据集合长度创建textview
            View view = View.inflate(context, R.layout.liuitem, null);
                   TextView text = view.findViewById(R.id.liu_item);
                   //修改当前TextView
           text.setText(list.get(i) + "");
           Log.i("xxx", "setList: " + list.toString());
           //添加给视图
               layout_v.addView(view);
            // 参数控制每一个TextView
            LinearLayout.LayoutParams layoutParams = (LinearLayout.LayoutParams) view.getLayoutParams();
            layoutParams.rightMargin = 10;
            layoutParams.leftMargin = 10;
            layoutParams.topMargin = 10;
            layoutParams.weight = 1;
            view.setLayoutParams(layoutParams);
        }
    }

}