<application android:icon="@drawable/hunqin" android:label="@string/app_name" android:theme="@android:style/Theme.Light" >
主题 android:theme------->必须不能使Theme.Light.NoTitleBar
否则不起作用
requestWindowFeature(Window.FEATURE_PROGRESS); setContentView(R.layout.progressbar); setProgressBarVisibility(true);
<application android:icon="@drawable/hunqin" android:label="@string/app_name" android:theme="@android:style/Theme.Light.NoTitleBar" >
public class ProgressTest extends Activity{ final Activity context = this; @Override public void onCreate(Bundle b) { super.onCreate(b); requestWindowFeature(Window.FEATURE_PROGRESS);//让进度条显示在标题栏上 setContentView(R.layout.main); WebView webview = (WebView)findViewById(R.id.webview); webview.setWebChromeClient(new WebChromeClient() { public void onProgressChanged(WebView view, int progress) { //Activity和Webview根据加载程度决定进度条的进度大小 //当加载到100%的时候 进度条自动消失 context.setProgress(progress * 100); } }); webview.loadUrl(url); }
http://www.cnblogs.com/over140/archive/2013/03/07/2947721.html
前言
如果不使用系统自带的TitleBar（即Activity被设置@android:style/Theme.NoTitleBar），那就需要自己来写进度条了，这里封装了一个自定义控件和加载网页的公共Activity，方便使用。
声明
欢迎转载，但请保留文章原始出处:)
博客园：http://www.cnblogs.com
农民伯伯： http://over140.cnblogs.com
正文
一、截图
二、自定义控件
/**
* 带进度条的WebView
* @author 农民伯伯
* @see http://www.cnblogs.com/over140/archive/2013/03/07/2947721.html
*
*/
@SuppressWarnings("deprecation")
public class ProgressWebView extends WebView {
private ProgressBar progressbar;
public ProgressWebView(Context context, AttributeSet attrs) {
super(context, attrs);
progressbar = new ProgressBar(context, null, android.R.attr.progressBarStyleHorizontal);
progressbar.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, 3, 0, 0));
addView(progressbar);
// setWebViewClient(new WebViewClient(){});
setWebChromeClient(new WebChromeClient());
}
public class WebChromeClient extends android.webkit.WebChromeClient {
@Override
public void onProgressChanged(WebView view, int newProgress) {
if (newProgress == 100) {
progressbar.setVisibility(GONE);
} else {
if (progressbar.getVisibility() == GONE)
progressbar.setVisibility(VISIBLE);
progressbar.setProgress(newProgress);
}
super.onProgressChanged(view, newProgress);
}
}
@Override
protected void onScrollChanged(int l, int t, int oldl, int oldt) {
LayoutParams lp = (LayoutParams) progressbar.getLayoutParams();
lp.x = l;
lp.y = t;
progressbar.setLayoutParams(lp);
super.onScrollChanged(l, t, oldl, oldt);
}
}
* 带进度条的WebView
* @author 农民伯伯
* @see http://www.cnblogs.com/over140/archive/2013/03/07/2947721.html
*
*/
@SuppressWarnings("deprecation")
public class ProgressWebView extends WebView {
private ProgressBar progressbar;
public ProgressWebView(Context context, AttributeSet attrs) {
super(context, attrs);
progressbar = new ProgressBar(context, null, android.R.attr.progressBarStyleHorizontal);
progressbar.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, 3, 0, 0));
addView(progressbar);
// setWebViewClient(new WebViewClient(){});
setWebChromeClient(new WebChromeClient());
}
public class WebChromeClient extends android.webkit.WebChromeClient {
@Override
public void onProgressChanged(WebView view, int newProgress) {
if (newProgress == 100) {
progressbar.setVisibility(GONE);
} else {
if (progressbar.getVisibility() == GONE)
progressbar.setVisibility(VISIBLE);
progressbar.setProgress(newProgress);
}
super.onProgressChanged(view, newProgress);
}
}
@Override
protected void onScrollChanged(int l, int t, int oldl, int oldt) {
LayoutParams lp = (LayoutParams) progressbar.getLayoutParams();
lp.x = l;
lp.y = t;
progressbar.setLayoutParams(lp);
super.onScrollChanged(l, t, oldl, oldt);
}
}
三、加载网页的公共Activity
/**
* 加载网页的Activity
*
* @author 农民伯伯
* @see http://www.cnblogs.com/over140/archive/2013/03/07/2947721.html
*
*/
public class WebActivity extends BaseActivity {
private ProgressWebView webview;
private String url;
private String name;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.commom_web);
// ~~~ 获取参数
url = getIntent().getStringExtra("url");
name = getIntent().getStringExtra("name");
// ~~~ 绑定控件
webview = (ProgressWebView) findViewById(R.id.webview);
// ~~~ 设置数据
titleText.setText(name);
webview.getSettings().setJavaScriptEnabled(true);
webview.setDownloadListener(new DownloadListener() {
@Override
public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
if (url != null && url.startsWith("http://"))
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
}
});
webview.loadUrl(url);
}
}
* 加载网页的Activity
*
* @author 农民伯伯
* @see http://www.cnblogs.com/over140/archive/2013/03/07/2947721.html
*
*/
public class WebActivity extends BaseActivity {
private ProgressWebView webview;
private String url;
private String name;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.commom_web);
// ~~~ 获取参数
url = getIntent().getStringExtra("url");
name = getIntent().getStringExtra("name");
// ~~~ 绑定控件
webview = (ProgressWebView) findViewById(R.id.webview);
// ~~~ 设置数据
titleText.setText(name);
webview.getSettings().setJavaScriptEnabled(true);
webview.setDownloadListener(new DownloadListener() {
@Override
public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
if (url != null && url.startsWith("http://"))
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
}
});
webview.loadUrl(url);
}
}
commom_web.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<include layout="@layout/include_title" />
<com.nmbb.ui.widget.ProgressWebView
android:id="@+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<include layout="@layout/include_title" />
<com.nmbb.ui.widget.ProgressWebView
android:id="@+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</LinearLayout>
四、补充说明
1、还可以再优化一下，在标题栏加一个刷新按钮。
2、如果加载的页面有需要下载文件，需要设置setDownloadListener方法，根据项目实际需求定制。
3、自定义控件是在转载的，忘记出处，感谢~~
结束
没啥高深技术，实用就行！