show progress dialog on webview
In my android application i am opening a webview.I want to hide url that is getting loaded,so the default window progress bar doesnot work for me.
Is there any way than that i can add progress dialogue on webview.
I am using the below code.
mWebView = (WebView) findViewById(R.id.webview);
mWebView.getSettings().setJavaScriptEnabled(true);
final Activity activity = this;
mWebView.setWebChromeClient(new WebChromeClient(){
public void onProgressChanged(WebView view, int progress) {
开发者_如何学运维 activity.setTitle("Loading...");
activity.setProgress(progress * 100);
if(progress == 100)
activity.setTitle("My title");
}
});
mWebView.loadUrl(Url);
mWebView.setWebViewClient(new HelloWebViewClient());
}
catch(Exception e)
{
e.printStackTrace();
}
}
private class HelloWebViewClient extends WebViewClient {
ProgressDialog MyDialog=new ProgressDialog(context);
public boolean shouldOverrideUrlLoading(WebView view, String url) {
MyDialog.show();
view.loadUrl(url);
return true;
}
Please share your valuable suggestions.
Thanks in advance :)
if you hide application title by "android:theme="@android:style/Theme.NoTitleBar"" from manifest then you won't see progress bar which is being displayed in title by this code:
this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.main);
// Makes Progress bar Visible
getWindow().setFeatureInt( Window.FEATURE_PROGRESS, Window.PROGRESS_VISIBILITY_ON);
So you can show progress bar with a Dialog box like this inside the onCreate():
final Activity activity = this;
final ProgressDialog progressDialog = new ProgressDialog(activity);
progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressDialog.setCancelable(false);
browser.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress) {
progressDialog.show();
progressDialog.setProgress(0);
activity.setProgress(progress * 1000);
progressDialog.incrementProgressBy(progress);
if(progress == 100 && progressDialog.isShowing())
progressDialog.dismiss();
}
});
Since ProgressDialog
is deprecated in API level 26 (Oreo), I will show how to use ProgressBar
with WebView
:
Step 1) Create a FrameLayout with WebView and ProgressBar like this:
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/fl"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ProgressBar
android:id="@+id/progress"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="8dp"
android:visibility="gone" />
<WebView
android:id="@+id/web_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="gone" />
</FrameLayout>
Step 2) Add the following code inside onCreate()
like this:
progressBar = findViewById(R.id.progress);
webView = findViewById(R.id.web_view);
webView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int newProgress) {
// Keep WebView hidden when the url is loading
webView.setVisibility(View.INVISIBLE);
// Make ProgressBar visible
progressBar.setVisibility(View.VISIBLE);
progressBar.setProgress(0);
progressBar.incrementProgressBy(newProgress);
if(newProgress == 100 && progressBar.getVisibility() == View.VISIBLE) {
// Make ProgressBar invisible and WebView visible
progressBar.setVisibility(View.INVISIBLE);
webView.setVisibility(View.VISIBLE);
}
}});
webView.loadUrl(URL);
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