assistant-android/app/src/main/java/com/gh/gamecenter/WebActivity.java

package com.gh.gamecenter;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.KeyEvent;
import android.view.View;
import android.webkit.DownloadListener;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ProgressBar;
import android.widget.RelativeLayout;
import android.widget.TextView;

import com.gh.base.BaseActivity;
import com.gh.common.util.DisplayUtils;
import com.gh.gamecenter.entity.CommentnumEntity;
import com.gh.gamecenter.retrofit.RetrofitManager;

import java.util.List;

import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.OnClick;
import rx.android.schedulers.AndroidSchedulers;
import rx.schedulers.Schedulers;

/**
 * Created by khy on 2016/10/18.
 */
public class WebActivity extends BaseActivity {

    @BindView(R.id.news_webview) WebView webView;
    @BindView(R.id.web_progressbar) ProgressBar progressBar;
    @BindView(R.id.web_comment) TextView webComment;
    @BindView(R.id.news_bottom) RelativeLayout newsBottom;
    @BindView(R.id.actionbar_tv_title) TextView newsTitle;

    private String newsId;
    private int commentNum;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        String webUrl;
        String webTitle;
        if (getIntent().getBundleExtra("data") != null) {
            Bundle data = getIntent().getBundleExtra("data");
            webUrl = data.getString("url");
            webTitle = "";
        } else {
            webUrl = getIntent().getStringExtra("url");
            webTitle = getIntent().getStringExtra("gameName");
            newsId = getIntent().getStringExtra("newsId");
        }
//        webUrl = "http://tieba.baidu.com/f?kw=%E7%BD%91%E6%98%93%E9%98%B4%E9%98%B3%E5%B8%88&red_tag=3194925450";

        View contentView = View.inflate(this, R.layout.activity_web, null);
        init(contentView, webTitle);

        ButterKnife.bind(this);

        webView.loadUrl(webUrl);

        WebSettings settings = webView.getSettings();
        settings.setJavaScriptEnabled(true);
        settings.setSupportZoom(true);

        //用webview打开url
        webView.setWebViewClient(new WebViewClient(){
//            @Override
//            public boolean shouldOverrideUrlLoading(WebView view, String url) {
//                view.loadUrl(url);
//                return true;
//            }

//            @Override
//            public WebResourceResponse shouldInterceptRequest(WebView view, String url) {
//                广告拦截操作
//                if (!url.contains(xxxx)) {
//                    return new WebResourceResponse(null, null, null);
//                }
//                return null;
//            }
        });

        // 页面里的下载跳转到自带浏览器
        webView.setDownloadListener(new DownloadListener() {
            @Override
            public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
                Uri uri = Uri.parse(url);
                Intent intent = new Intent(Intent.ACTION_VIEW, uri);
                startActivity(intent);
            }
        });

        //设置加载进度条
        webView.setWebChromeClient(new WebChromeClient(){

            @Override
            public void onReceivedTitle(WebView view, String title) {
                super.onReceivedTitle(view, title);
                if (TextUtils.isEmpty(newsId)) {
                    newsTitle.setEllipsize(TextUtils.TruncateAt.END);
                    newsTitle.setPadding(DisplayUtils.dip2px(getApplication(), 30), 0,DisplayUtils.dip2px(getApplication(), 30), 0);
                    newsTitle.setSingleLine();
                    newsTitle.setText(title);

                }
            }

            @Override
            public void onProgressChanged(WebView view, int newProgress) {
                progressBar.setProgress(newProgress);
                if (newProgress == 100 && newsId != null){
                    progressBar.setVisibility(View.GONE);
                    if (newsBottom.getVisibility() == View.GONE) {
                        newsBottom.setVisibility(View.VISIBLE);
                    }
                } else {
                    if (progressBar.getVisibility() == View.GONE) {
                        progressBar.setVisibility(View.VISIBLE);
                    }
                }
            }
        });

        if (newsId != null) {
            getNewsCommentNum();
        }
    }

    @OnClick(R.id.web_comment)
    public void OnCommentClickListener() {
        Intent intent = new Intent(this, MessageDetailActivity.class);
        intent.putExtra("newsId", newsId);
        intent.putExtra("commentNum", commentNum);
        startActivityForResult(intent, 1001);
    }

    public void getNewsCommentNum() {
        RetrofitManager.getComment()
                .getNewsCommentnum(newsId)
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new com.gh.gamecenter.retrofit.Response<List<CommentnumEntity>>(){

                    @Override
                    public void onNext(List<CommentnumEntity> response) {
                        super.onNext(response);
                        if (response.size() > 0 && response.get(0).getNum() > 0) {
                            commentNum = response.get(0).getNum();
                            webComment.setText("查看评论 （" + response.get(0).getNum() + "）");
                        }
                    }
                });
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (keyCode == KeyEvent.KEYCODE_BACK && webView.canGoBack()) {
            webView.goBack();// 返回前一个页面
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        // 刷新评论数
        if (resultCode == 1001 && progressBar.getVisibility() == View.VISIBLE && newsId != null) {
            webComment.setText("查看评论 （" + data.getExtras().getInt("commentNum") + "）");
        }
    }

}