平滑

来源：互联网发布：淘宝免费代理加盟编辑：程序博客网时间：2024/06/02 22:05

public class MyViewpagerDic extends HorizontalScrollView implements OnClickListener {
   private LinearLayout linearLayout;
   private String[] titles;
   private List<View> listView = new ArrayList<View>();
   private ViewPager viewPager;

   // 重写方法
   public MyViewpagerDic(Context context, AttributeSet attrs, int defStyle) {
       super(context, attrs, defStyle);
       initView();
   }

   public MyViewpagerDic(Context context, AttributeSet attrs) {
       super(context, attrs);
       initView();
   }

   public MyViewpagerDic(Context context) {
       super(context);
       initView();
   }

   // 创建方法使viewpager和平滑能够一起滑动
   public void getPager(ViewPager viewPager) {
       this.viewPager = viewPager;
       viewPager.setOnPageChangeListener(new OnPageChangeListener() {

           @Override
           public void onPageSelected(int arg0) {
               setcurron(arg0);
           }

           @Override
           public void onPageScrolled(int arg0, float arg1, int arg2) {
               // TODO Auto-generated method stub

           }

           @Override
           public void onPageScrollStateChanged(int arg0) {
               // TODO Auto-generated method stub

           }
       });
   }

   // 创建线性布局
   private void initView() {
       linearLayout = new LinearLayout(getContext());
       this.addView(linearLayout);
   }

   // 展示标题
   public void setTitles(String[] titles) {
       this.titles = titles;
       listView.clear();
       for (int i = 0; i < titles.length; i++) {
           // 获得布局
           View view = View.inflate(getContext(), R.layout.menu_main, null);
           // 把布局添加到listview中
           listView.add(view);
           // 查找控件
           TextView tab = (TextView) view.findViewById(R.id.tv_tab);
           TextView line = (TextView) view.findViewById(R.id.tv_line);
           tab.setText(titles[i]);
           // 进行判断使滑动或者点击时能够改变字体颜色
           if (i == 0) {
               tab.setTextColor(Color.RED);
               line.setVisibility(VISIBLE);
           } else {
               tab.setTextColor(Color.BLACK);
               line.setVisibility(GONE);
           }
           // 给veiw id
           view.setId(i);
           // 给view设置监听
           view.setOnClickListener(this);
           LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT,
                   LayoutParams.WRAP_CONTENT);
           linearLayout.addView(view, params);
       }

   }

   @Override
   public void onClick(View v) {
       setcurron(v.getId());

   }

   // 监听的方法
   private void setcurron(int position) {
       // 获取宽度进行计算能够展示更多的标题数据
       int width = linearLayout.getChildAt(position).getWidth();
       this.scrollTo(width * position, 0);
       for (int i = 0; i < titles.length; i++) {
           View view = listView.get(i);
           // 查找控件
           TextView tab = (TextView) view.findViewById(R.id.tv_tab);
           TextView line = (TextView) view.findViewById(R.id.tv_line);
           // 进行判断使滑动或者点击时能够改变字体颜色
           if (position == i) {
               // 设置传过来的viewpager的当前页
               viewPager.setCurrentItem(i);
               tab.setTextColor(Color.RED);
               line.setVisibility(VISIBLE);
           } else {
               tab.setTextColor(Color.BLACK);
               line.setVisibility(GONE);
           }
       }

   }
}

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