添加进度条的WebView

本文介绍了添加进度条的WebView的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我一直在试图把一个后退按钮进度条在一个web视图并继续使用了Android默认的Web浏览器中我的应用程序的URL负载来代替。

如果我设法保持到浏览应用程序内，并保持后退按钮，进度条一直没有出现，如果我设法得到进度条显示了code在底部shouldoverideurl拿出从未读过和默认的浏览器启动，我尝试了所有的谷歌教程和解决方案，但他们没有工作。我目前正在使用谷歌..谁能帮助??

公共类livebrad延伸活动{ 的WebView mWebView; / **第一次创建活动时调用。 * / @覆盖 公共无效的onCreate（包savedInstanceState） {     super.onCreate（savedInstanceState）;     //添加Progrss栏支持     。this.getWindow（）requestFeature（Window.FEATURE_PROGRESS）;     的setContentView（R.layout.brows）;     //使进度条可见     。getWindow（）setFeatureInt（Window.FEATURE_PROGRESS，Window.PROGRESS_VISIBILITY_ON）;     //获取Web视图     mWebView =（web视图）findViewById（R.id.webView）; //这是你给的ID                                                          //在main.xml中的web视图     mWebView.getSettings（）setJavaScriptEnabled（真）。     。mWebView.getSettings（）setSupportZoom（真正的）; //缩放控制对网络（不需要这个                                                          //如果ROM支持多点触控     。mWebView.getSettings（）setBuiltInZoomControls（真正的）; //如果由ROM支持启用多点触摸     //装载网址     mWebView.loadUrl（www.bbc.co.uk）;     //设置浏览器客户端，并定义onProgressChanged     //这使得进度条进行更新。     最后活动MyActivity =这一点;     mWebView.setWebChromeClient（新WebChromeClient（）{     公共无效onProgressChanged（web视图来看，INT进度）     {         //使加载URL后杠消失，并改变字符串载入中...         MyActivity.setTitle（载入中...）;         MyActivity.setProgress（进度* 100）; //使酒吧后消失网址是装         完成加载后//返回应用程序名称         如果（进度== 100）             MyActivity.setTitle（R.string.app_name）;     }类HelloWebViewClient扩展WebViewClient {         @覆盖         公共布尔shouldOverrideUrlLoading（web视图查看，字符串URL）{             view.loadUrl（URL）;             返回true;         }     }     }）; } //方法的onCreate结束

}

解决方案

进口android.app.Activity; 进口android.app.ProgressDialog; 进口android.os.Bundle; 进口android.webkit.WebView; 进口android.webkit.WebViewClient; 公共类SandbarinFacebook延伸活动{ 的WebView mWebView;     保护无效的onCreate（包savedInstanceState）{         super.onCreate（savedInstanceState）;         的setContentView（R.layout.fb）;         最后ProgressDialog PD = ProgressDialog.show（这一点，，载入中...，                 真正）;         mWebView =（web视图）findViewById（R.id.webkitWebView1）;         mWebView.getSettings（）setJavaScriptEnabled（真）。         。mWebView.getSettings（）setSupportZoom（真正的）;         。mWebView.getSettings（）setBuiltInZoomControls（真正的）;         mWebView.setWebViewClient（新WebViewClient（）{             @覆盖             公共无效onPageFinished（web视图查看，字符串URL）{                 如果（pd.isShowing（）＆安培;＆安培;！概率pd =空）                 {                 pd.dismiss（）;                 }             }         }）;         mWebView.loadUrl（m.facebook/sandbarathens）;     } }

I have been trying to put a back button progress bar in a webview and keep the url loading within my app instead of using the android default web browser.

If I manage to keep to browsing within the app and keep the back button the progress bar never shows up if I manage to get the progress bar to show up the code at the bottom for shouldoverideurl come up never read and the default browser launches, I tried all the google tutorials and solution but none of them work. I am currently using google.. Can anyone help??

public class livebrad extends Activity { WebView mWebView; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Adds Progrss bar Support this.getWindow().requestFeature(Window.FEATURE_PROGRESS); setContentView(R.layout.brows); // Makes Progress bar Visible getWindow().setFeatureInt( Window.FEATURE_PROGRESS, Window.PROGRESS_VISIBILITY_ON); // Get Web view mWebView = (WebView) findViewById( R.id.webView ); //This is the id you gave //to the WebView in the main.xml mWebView.getSettings().setJavaScriptEnabled(true); mWebView.getSettings().setSupportZoom(true); //Zoom Control on web (You don't need this //if ROM supports Multi-Touch mWebView.getSettings().setBuiltInZoomControls(true); //Enable Multitouch if supported by ROM // Load URL mWebView.loadUrl("www.bbc.co.uk"); // Sets the Chrome Client, and defines the onProgressChanged // This makes the Progress bar be updated. final Activity MyActivity = this; mWebView.setWebChromeClient(new WebChromeClient() { public void onProgressChanged(WebView view, int progress) { //Make the bar disappear after URL is loaded, and changes string to Loading... MyActivity.setTitle("Loading..."); MyActivity.setProgress(progress * 100); //Make the bar disappear after URL is loaded // Return the app name after finish loading if(progress == 100) MyActivity.setTitle(R.string.app_name); }class HelloWebViewClient extends WebViewClient { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { view.loadUrl(url); return true; } } }); }//End of Method onCreate

}

解决方案

import android.app.Activity; import android.app.ProgressDialog; import android.os.Bundle; import android.webkit.WebView; import android.webkit.WebViewClient; public class SandbarinFacebook extends Activity { WebView mWebView; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.fb); final ProgressDialog pd = ProgressDialog.show(this, "", "Loading...", true); mWebView = (WebView) findViewById(R.id.webkitWebView1); mWebView.getSettings().setJavaScriptEnabled(true); mWebView.getSettings().setSupportZoom(true); mWebView.getSettings().setBuiltInZoomControls(true); mWebView.setWebViewClient(new WebViewClient() { @Override public void onPageFinished(WebView view, String url) { if(pd.isShowing() && pd!=null) { pd.dismiss(); } } }); mWebView.loadUrl("m.facebook/sandbarathens"); } }