AboutActivity.java

package com.wangbb.naruto.app.activity;

import android.os.Bundle;
import android.os.Message;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.webkit.DownloadListener;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;

import com.wangbb.naruto.R;
import com.wangbb.naruto.app.view.LoadingViewHelper;

/**
 * Created by wangbinbin on 15/5/9.
 */
public class AboutActivity extends BaseFragmentActivity {
    private WebView webView;
    private LoadingViewHelper loadingview;
    private Toolbar toolbar;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_about);

        initView();
        initWebview();
        initData();
    }

    private void initData() {
        toolbar.setTitle("����");
        toolbar.setNavigationIcon(R.drawable.arrow_left);
        setSupportActionBar(toolbar);
        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });

        loadingview.startLoading();
        webView.loadUrl("http://naruto-wbb.github.io");
    }

    private void initWebview() {
        webView.getSettings().setJavaScriptEnabled(true);
        webView.setWebViewClient(new WebViewClient() {
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                view.loadUrl(url);
                return true;
            }

            public void onPageFinished(WebView view, String url) {
                loadingview.loadingSuccess();
            }

            public void onFormResubmission(WebView view, Message dontResend, Message resend) {
                resend.sendToTarget();
            }
        });
        webView.setWebChromeClient(new WebChromeClient() {
        });
        webView.setDownloadListener(new DownloadListener() {
            @Override
            public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {

            }
        });
    }

    private void initView() {
        webView = (WebView) findViewById(R.id.webview);
        loadingview = new LoadingViewHelper(findViewById(R.id.loading_view));
        toolbar = (Toolbar) findViewById(R.id.toolbar);
    }

    private void back() {
        if (webView.canGoBack()) {
            webView.goBack();
        } else {
            finish();
        }
    }

    @Override
    public void onBackPressed() {
        back();
    }

    @Override
    public void onPause() {// �̳���Activity
        super.onPause();
        webView.onPause();
    }

    @Override
    public void onResume() {// �̳���Activity
        super.onResume();
        webView.onResume();
    }
}