MainContentFragment.java

package com.andbase.main;

import android.app.Activity;
import android.app.LoaderManager;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.JsPromptResult;
import android.webkit.JsResult;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ProgressBar;
import android.widget.SearchView.OnQueryTextListener;

import com.andbase.R;
import com.andbase.global.Constant;
import com.andbase.global.MyApplication;

public class MainContentFragment extends Fragment{

	private MyApplication application;
	private Activity mActivity = null;
	// 主界面
	private WebView mWebView = null;
	private ProgressBar mProgressBar = null;

	public View onCreateView(LayoutInflater inflater, ViewGroup container,
			Bundle savedInstanceState) {

		mActivity = this.getActivity();
		application = (MyApplication) mActivity.getApplication();

		View view = inflater.inflate(R.layout.web, null);
		mWebView = (WebView) view.findViewById(R.id.webView);
		mProgressBar = (ProgressBar) view.findViewById(R.id.progress_bar);
		// 设置支持JavaScript脚本
		WebSettings webSettings = mWebView.getSettings();
		webSettings.setJavaScriptEnabled(true);
		// 设置可以访问文件
		webSettings.setAllowFileAccess(true);
		// 设置可以支持缩放
		webSettings.setSupportZoom(true);
		// 设置默认缩放方式尺寸是far
		webSettings.setDefaultZoom(WebSettings.ZoomDensity.MEDIUM);
		// 设置出现缩放工具
		webSettings.setBuiltInZoomControls(false);
		webSettings.setDefaultFontSize(20);

		// 访问assets目录下的文件
		String url = Constant.BASEURL+"m";
		mWebView.loadUrl(url);

		// 设置WebViewClient
		mWebView.setWebViewClient(new WebViewClient() {
			// url拦截
			@Override
			public boolean shouldOverrideUrlLoading(WebView view, String url) {
				// 使用自己的WebView组件来响应Url加载事件，而不是使用默认浏览器器加载页面
				view.loadUrl(url);
				// 相应完成返回true
				return true;
				// return super.shouldOverrideUrlLoading(view, url);
			}

			// 页面开始加载
			@Override
			public void onPageStarted(WebView view, String url, Bitmap favicon) {
				mProgressBar.setVisibility(View.VISIBLE);
				super.onPageStarted(view, url, favicon);
			}

			// 页面加载完成
			@Override
			public void onPageFinished(WebView view, String url) {
				mProgressBar.setVisibility(View.GONE);
				super.onPageFinished(view, url);
			}

			// WebView加载的所有资源url
			@Override
			public void onLoadResource(WebView view, String url) {
				super.onLoadResource(view, url);
			}

			@Override
			public void onReceivedError(WebView view, int errorCode,
					String description, String failingUrl) {
				super.onReceivedError(view, errorCode, description, failingUrl);
			}

		});

		// 设置WebChromeClient
		mWebView.setWebChromeClient(new WebChromeClient() {
			@Override
			// 处理javascript中的alert
			public boolean onJsAlert(WebView view, String url, String message,
					final JsResult result) {
				return super.onJsAlert(view, url, message, result);
			};

			@Override
			// 处理javascript中的confirm
			public boolean onJsConfirm(WebView view, String url,
					String message, final JsResult result) {
				return super.onJsConfirm(view, url, message, result);
			};

			@Override
			// 处理javascript中的prompt
			public boolean onJsPrompt(WebView view, String url, String message,
					String defaultValue, final JsPromptResult result) {
				return super.onJsPrompt(view, url, message, defaultValue,
						result);
			};

			// 设置网页加载的进度条
			@Override
			public void onProgressChanged(WebView view, int newProgress) {
				mProgressBar.setProgress(newProgress);
				super.onProgressChanged(view, newProgress);
			}

			// 设置程序的Title
			@Override
			public void onReceivedTitle(WebView view, String title) {
				super.onReceivedTitle(view, title);
			}
		});
		
		

		return view;
	}
	
	/**
	 * 
	 * 描述：能退出吗
	 * @return
	 * @throws 
	 * @date：2013-12-13 上午11:06:58
	 * @version v1.0
	 */
	public boolean canBack(){
		if(mWebView.canGoBack()){
			mWebView.goBack();
			return false;
		}
		return true;
	}

}