import Android.content.Intent;

import android.content.pm.PackageManager;

import android.net.Uri;

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

public class MainActivity extends AppCompatActivity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        findViewById(R.id.taobao).setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                openTaobao();

            }

        });

        findViewById(R.id.jd).setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                openJD();

            }

        });

        findViewById(R.id.webjd).setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                //跳转浏览器，打开详情页

                Uri uri = Uri.parse("https://item.jd.com/231023.html");

                Intent intent = new Intent("android.intent.action.VIEW",uri);

                startActivity(intent);

            }

        });

    }

    /**

     * 跳转淘宝详情页

     */

    public void openTaobao() {

        if (checkPackage("com.taobao.taobao")) {

            //url:淘宝商品详情

            String url = "https://item.taobao.com/item.htm?id=539789035577&ali_refid=a3_430406_1007:1124066525:N:485184283370953001_0_100:d45485b3013535b0cc4164b7cd5b7523&ali_trackid=1_d45485b3013535b0cc4164b7cd5b7523&spm=a21bo.50862.201874-sales.8.UYm99R";

            Intent intent = new Intent();

            intent.setAction("android.intent.action.VIEW");

            Uri uri = Uri.parse(url);

            intent.setData(uri);

            intent.setClassName("com.taobao.taobao", "com.taobao.tao.detail.activity.DetailActivity");

            startActivity(intent);

        }

    }

    /**

     * 跳转京东详情页

     */

    public void openJD() {

        if (checkPackage("com.jingdong.app.mall")) {

//            String url = "https://item.jd.com/231023.html";//这是京东商品详情页

            String id = "231023";//需要提取商品id，添加到下面url，不能单独将商品详情页作为url传入

            String url = "openapp.jdmobile://virtual?params=%7B%22sourceValue%22:%220_productDetail_97%22,%22des%22:%22productDetail%22,%22skuId%22:%22"+id+"%22,%22category%22:%22jump%22,%22sourceType%22:%22PCUBE_CHANNEL%22%7D";

            Intent intent = new Intent();

            intent.setAction("android.intent.action.VIEW");

            Uri uri = Uri.parse(url);

            intent.setData(uri);

//            intent.setClassName("com.jingdong.app.mall","com.jd.lib.productdetail.ProductDetailActivity");//不需要

            startActivity(intent);

        }

    }

    /**

     * 检测该包名所对应的应用是否存在

     ** @param packageName

     * @return

     */

    public boolean checkPackage(String packageName) {

        if (packageName == null || "".equals(packageName)) return false;

        try {

            //手机已安装，返回true

            getPackageManager().getApplicationInfo(packageName, PackageManager.GET_UNINSTALLED_PACKAGES);

            return true;

        } catch (PackageManager.NameNotFoundException e) {

            //手机未安装，跳转到应用商店下载，并返回false

            Uri uri = Uri.parse("market://details?id="+packageName);

            Intent it = new Intent(Intent.ACTION_VIEW, uri);

            startActivity(it);

            return false;

        }

    }

}