横向菜单+轮播简单案例

最新推荐文章于 2020-06-06 14:37:13 发布

原创最新推荐文章于 2020-06-06 14:37:13 发布 · 756 阅读

CC 4.0 BY-SA版权

//首页横向菜单+ViewPager

import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

import com.bwie.com.basefengzhang.fragment.Fragment01;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    private TabLayout tl;
    private ViewPager main_vp;
    private List<String> lists;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        tl = findViewById(R.id.tl);
        main_vp = findViewById(R.id.main_vp);

        initData();

        main_vp.setAdapter(new MyMainAdapter(getSupportFragmentManager()));
        tl.setupWithViewPager(main_vp);
    }

    private void initData() {
        lists = new ArrayList<>();
        lists.add("首页");
        lists.add("新闻");
        lists.add("国际");
        lists.add("国内");
        lists.add("科技");
        lists.add("娱乐");
        lists.add("趣图");

    }
    
 class MyMainAdapter extends FragmentPagerAdapter {


     public MyMainAdapter(FragmentManager fm) {
         super(fm);
     }

     @Override
     public CharSequence getPageTitle(int position) {
         return lists.get(position);
     }

     @Override
     public Fragment getItem(int position) {
         Fragment01 fragment01=new Fragment01();

         return fragment01;
     }

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

//首页的Fragment

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.view.ViewPager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import android.widget.ScrollView;


import com.bwie.com.basefengzhang.R;
import com.bwie.com.basefengzhang.adapter.MyAdapter;
import com.bwie.com.basefengzhang.adapter.MyLvAdapter;
import com.bwie.com.basefengzhang.bean.ResultData;
import com.bwie.com.basefengzhang.bean.ResultData01;
import com.bwie.com.basefengzhang.utiles.MyTask;
import com.bwie.com.basefengzhang.utiles.NetStateUtil;
import com.google.gson.Gson;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshScrollView;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by Administrator on 2018/1/12.
 */

public class Fragment01 extends Fragment {

    private Handler handler=new Handler(){
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            int position=vp.getCurrentItem();
            position++;
            vp.setCurrentItem(position);
            sendEmptyMessageDelayed(0,1000);
        }
    };
    private ListView lv;
    private ViewPager vp;
    int pageIndex=1;
    int oprType=0;
    private ArrayList<String> picUrls;
    private String url01="http://api.tianapi.com/mobile/?key=c38dde315c92ae9414672fea3690fd4e&num="+pageIndex;
    private MyLvAdapter myLvAdapter;
    private List<ResultData.NewslistBean> data = new ArrayList<>();
    private PullToRefreshScrollView ptrsv;


    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment01, container, false);
        vp = view.findViewById(R.id.vp);
        lv=view.findViewById(R.id.lv);
        ptrsv = view.findViewById(R.id.ptrsv);
        //判断网络状态
        if (NetStateUtil.isConn(getActivity())){

            initLunbotu();
            initpsv();
            requestNetData();
        }else{
            NetStateUtil.showNoNetWorkDlg(getActivity());
        }

        return view;
    }
    //判断适配是否为空
    public void setLvAdapter(){
        if (myLvAdapter==null){
            myLvAdapter = new MyLvAdapter(data,getActivity());
            lv.setAdapter(myLvAdapter);
        }else{
            myLvAdapter.notifyDataSetChanged();
        }
    }

    private void requestNetData(){
        MyTask myTask=new MyTask(new MyTask.ICallBacks() {
            @Override
            public void getJson(String json) {
                Gson gson=new Gson();
                ResultData data01 = gson.fromJson(json, ResultData.class);
                //图片数据源
                if (oprType==1){
                    data.clear();
                }
                //列表数据
                data.addAll(data01.getNewslist());
                Log.d("--", "getJson: "+data.size());
                //设置列表适配器
                setLvAdapter();

                ptrsv.onRefreshComplete();
            }
        });
        myTask.execute(url01);
    }
    private void initLunbotu(){
        picUrls= new ArrayList<String>();
        //图片路径
        picUrls.add("http://i04.pic.sogou.com/eb25215666d3f19b");
        picUrls.add("http://i04.pic.sogou.com/98d72d6b17e8ac75");
        picUrls.add("http://i04.pic.sogou.com/0b8e0d58ff5a2f5d");
        picUrls.add("http://i04.pic.sogou.com/c8f90f93ee078e26");
        picUrls.add("http://i04.pic.sogou.com/ac4c1cb4c7f90bbb");
        picUrls.add("http://i04.pic.sogou.com/2d780fc803961176");
        picUrls.add("http://i04.pic.sogou.com/f0572d832f43dd3a");
        picUrls.add("http://i04.pic.sogou.com/5c8dbe429d411297");

        //设置轮播适配器
        vp.setAdapter(new MyAdapter(picUrls,getActivity()));
        vp.setCurrentItem(5*1000);
        handler.sendEmptyMessageDelayed(0,1000);
    }

    private void initpsv(){
       ptrsv.setMode(PullToRefreshBase.Mode.BOTH);
       ptrsv.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ScrollView>() {
           @Override
           public void onPullDownToRefresh(PullToRefreshBase<ScrollView> pullToRefreshBase) {
            pageIndex=1;
               url01="http://api.tianapi.com/mobile/?key=c38dde315c92ae9414672fea3690fd4e&num="+pageIndex;
               oprType=1;
                requestNetData();
           }

           @Override
           public void onPullUpToRefresh(PullToRefreshBase<ScrollView> pullToRefreshBase) {
              pageIndex++;
               url01="http://api.tianapi.com/mobile/?key=c38dde315c92ae9414672fea3690fd4e&num="+pageIndex;
               oprType=2;
               requestNetData();
           }
       });
    }

}
//重新设置listView的高，结局冲突问题
import android.content.Context;
import android.util.AttributeSet;
import android.widget.ListView;

/**
 * Created by Administrator on 2018/1/12.
 */

public class MyListView extends ListView {
    public MyListView(Context context) {
        super(context);
    }

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

    public MyListView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int newHeight=MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE>>2,MeasureSpec.AT_MOST);
        super.onMeasure(widthMeasureSpec,newHeight);
    }
}
//图片的适配器
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.support.v4.view.PagerAdapter;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;


import com.bwie.com.basefengzhang.Main2Activity;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.assist.ImageScaleType;

import java.util.ArrayList;

/**
 * Created by Administrator on 2018/1/11.
 */

public class MyAdapter extends PagerAdapter {
    private ArrayList<String> picUrls;
    private Context context;
    private DisplayImageOptions options;


    public MyAdapter(ArrayList<String> picUrls, Context context) {
        this.context=context;
        this.picUrls=picUrls;

        options=new DisplayImageOptions.Builder()
                .cacheInMemory(true)//使用内存缓存
                .cacheOnDisk(false)//使用磁盘缓存
                .bitmapConfig(Bitmap.Config.RGB_565)//设置图片色彩模式
                .imageScaleType(ImageScaleType.EXACTLY)//设置图片的缩放模式
                .build();
    }

    @Override
        public int getCount() {
            return Integer.MAX_VALUE;
        }

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

        @Override
        public Object instantiateItem(final ViewGroup container, int position) {
            ImageView imageView=new ImageView(context);
            //得到图片的url路径
            String s = picUrls.get(position % picUrls.size());
            //异步加载图片
            ImageLoader.getInstance().displayImage(s,imageView,options);
            //添加到容器中
            container.addView(imageView);
            imageView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    Intent intent=new Intent(context, Main2Activity.class);
                    context.startActivity(intent);
                }
            });

            return imageView;
        }

        @Override
        public void destroyItem(ViewGroup container, int position, Object object) {
            container.removeView((View) object);
        }
}
//集合的适配器
import android.content.Context;
import android.graphics.Bitmap;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.bwie.com.basefengzhang.R;
import com.bwie.com.basefengzhang.bean.ResultData;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.assist.ImageScaleType;

import java.util.List;

/**
 * Created by Administrator on 2018/1/11.
 */

public class MyLvAdapter extends BaseAdapter {
    private List<ResultData.NewslistBean> data;
    private Context context;
    private final DisplayImageOptions options;

    public MyLvAdapter(List<ResultData.NewslistBean> data, Context context) {
        this.context=context;
        this.data=data;

        options = new DisplayImageOptions.Builder()
                .cacheInMemory(true)
                .cacheOnDisk(true)
                .bitmapConfig(Bitmap.Config.RGB_565)
                .imageScaleType(ImageScaleType.EXACTLY)
                .build();
    }

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

    @Override
    public Object getItem(int i) {
        return data.get(i);
    }

    @Override
    public long getItemId(int i) {
        return i;
    }

    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {
        ViewHolder holder;
        if (view==null){
            holder=new ViewHolder();
            view=View.inflate(context,R.layout.list_item,null);
            holder.images=view.findViewById(R.id.img);
            holder.title=view.findViewById(R.id.name);
            holder.price=view.findViewById(R.id.plice);

            view.setTag(holder);
        }else{
            holder= (ViewHolder) view.getTag();
        }
        holder.title.setText(data.get(i).getTitle());
        holder.price.setText(data.get(i).getCtime());
        ImageLoader.getInstance().displayImage(data.get(i).getPicUrl(),holder.images,options);

        return view;
    }

    class ViewHolder{
        ImageView images;
        TextView title,price;
    }
}
//设置WebView
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;

public class Main2Activity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);
        WebView webView=findViewById(R.id.wv);

        //设置支持JS
        WebSettings settings = webView.getSettings();
        settings.setJavaScriptEnabled(true);
        settings.setJavaScriptCanOpenWindowsAutomatically(true);
        //设置在本应用中显示网页
        webView.setWebViewClient(new WebViewClient());
        webView.loadUrl("http://baidu.com");
    }
}
//常用方法略