android ProgressDialog与webview

来源：互联网发布：怎么样让淘宝号升心快编辑：程序博客网时间：2024/05/18 03:02

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

webView = (WebView) findViewById(R.id.webview);

loadUrl(homepurl);
webView.setWebViewClient(new WebViewClientEmb());

}

public class WebViewClientEmb extends WebViewClient {
// 页面载入前调用
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
if (!progressBar.isShowing()) {
progressBar = ProgressDialog.show(MainActivity.this,null,"页面加载中，请稍后..");
}
}

@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return super.shouldOverrideUrlLoading(view, url);
}

public void onPageFinished(WebView view, String url) {
progressBar.dismiss();
}
}

public void loadUrl(String url) {
if (webView != null) {
webView.loadUrl(url);
progressBar = ProgressDialog.show(this,null,"页面加载中，请稍后..");
webView.reload();
}

}

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1：注意事件的构造函数

2：监听线程之间的通信

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