在 web 视图中添加进度对话框 [英] Adding a Progress Dialog in a webview
本文介绍了在 web 视图中添加进度对话框的处理方法,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
当页面在 web 视图中加载时,我一直在尝试将进度对话框合并到我的应用程序中,因此不只是一个空白的白屏.我知道这个问题随处可见,但我似乎无法弄清楚任何对我有用的东西.我是编程和使用 android 的新手,因此任何信息都会有所帮助.下面是我现在拥有的代码.使用 onPageStarted 我收到 Bitmap 的编译错误,我不确定问题是什么.谢谢.
I have been trying to incorporate a progress dialog into my app when pages are loading in the webview so there isn't just a blank white screen. I know this question is posted everywhere but I can't seem to figure out anything that works for me. I am new to programming and working with android so any information would be helpful. Below is the code that I currently have now. With the onPageStarted I am getting a compile error for Bitmap and I'm not sure what the problem is. Thanks.
public class Grades extends Activity{
@Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
//requesting system settings
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().requestFeature( Window.FEATURE_PROGRESS);
WebView webview = new WebView(this);
//web settings
WebSettings webSettings = webview.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setDisplayZoomControls(true);
webSettings.setBuiltInZoomControls(true);
setContentView(webview);
//loads webpages in webview instead of launching browser
webview.setWebViewClient(new WebViewClient() {
ProgressDialog prDialog;
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
prDialog = ProgressDialog.show(Grades.this, null, "loading, please wait...");
super.onPageStarted(view, url, favicon);
}
@Override
public void onPageFinished(WebView view, String url) {
prDialog.dismiss();
super.onPageFinished(view, url);
}
});
//loading webpage
webview.loadUrl("page__link");
}
推荐答案
检查这段代码,
final ProgressDialog pd = ProgressDialog.show(OnlinePaymentActivity.this, "", "Please wait, your transaction is being processed...", true);
WebView mWebview = (WebView)findViewById(R.id.webView1);
mWebview.getSettings().setJavaScriptEnabled(true); // enable javascript
mWebview.getSettings().setLoadWithOverviewMode(true);
mWebview.getSettings().setUseWideViewPort(true);
mWebview.getSettings().setBuiltInZoomControls(true);
mWebview.setWebViewClient(new WebViewClient() {
@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Toast.makeText(activity, description, Toast.LENGTH_SHORT).show();
}
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
pd.show();
}
@Override
public void onPageFinished(WebView view, String url) {
pd.dismiss();
String webUrl = mWebview.getUrl();
}
});
mWebview .loadUrl("www.google.com");
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