仿微博导航栏

仿微博导航栏

实现多个导航条与ViewPager结合

我自己的成果图

    

实现步骤：

1.添加依赖：

compile 'com.xu.viewpagerflextitle:viewpagerflextitle:1.0.3'

2.布局activity_main

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:ViewPagerTitle="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="android.news.com.MainActivity">
<xu.viewpagerflextitle.ViewPagerTitle
    android:id="@+id/pager_title"
    ViewPagerTitle:background_content_color="@android:color/white"
    ViewPagerTitle:line_start_color="@android:color/holo_red_dark"
    ViewPagerTitle:line_end_color="@android:color/white"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"/>
    <android.support.v4.view.ViewPager
        android:id="@+id/view_pager"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1">
    </android.support.v4.view.ViewPager>
</LinearLayout>

3.其他布局

4.MainActivity代码

import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import java.util.ArrayList;

import xu.viewpagerflextitle.ViewPagerTitle;

public class MainActivity extends AppCompatActivity {
    MyPagerAdapter adapter;
    private ArrayList<View> views;
    private View view1;
    private View view2;
    private View view3;
    private View view4;
    private View view5;
    private View view6;
    private View view7;
    private View view8;
    ViewPagerTitle pagerTitle;
    ViewPager viewPager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        init();
    }
    private void init(){
        pagerTitle=(ViewPagerTitle)findViewById(R.id.pager_title);
        viewPager=(ViewPager)findViewById(R.id.view_pager);
        views = new ArrayList<>();
        pagerTitle.initData(new String[]{"时事", "旅游",  "农业","科技", "体育", "段子", "国内", "国外"}, viewPager, 0);
        LayoutInflater inflater = getLayoutInflater();
        view1 = inflater.inflate(R.layout.layout1, null);
        view2 = inflater.inflate(R.layout.layout2, null);
        view3 = inflater.inflate(R.layout.layout3, null);
        view4 = inflater.inflate(R.layout.layout4, null);
        view5 = inflater.inflate(R.layout.layout5, null);
        view6 = inflater.inflate(R.layout.layout6, null);
        view7 = inflater.inflate(R.layout.layout7, null);
        view8 = inflater.inflate(R.layout.layout8, null);

        views = new ArrayList<>();
        views.add(view1);
        views.add(view2);
        views.add(view3);
        views.add(view4);
        views.add(view5);
        views.add(view6);
        views.add(view7);
        views.add(view8);
        adapter=new MyPagerAdapter(views);
        viewPager.setAdapter(adapter);
    }
    public class MyPagerAdapter extends PagerAdapter {


        private final ArrayList<View> views;

        public MyPagerAdapter(ArrayList<View> views) {
            this.views = views;
        }

        @Override
        public int getCount() {
            return views.size();
        }

        @Override
        public boolean isViewFromObject(View view, Object object) {
            return view == object;
        }

        @Override
        public void destroyItem(ViewGroup container, int position,
                                Object object) {
            container.removeView(views.get(position));
        }

        @Override
        public Object instantiateItem(ViewGroup container, int position) {
            container.addView(views.get(position));
            return views.get(position);
        }
    }

}

 ok 完成!