I'm trying to develop a custom browser
with WebView
using Android API level 10
(sdk 2.3.3), unfortunately I don't know how to intercept request from the webpage
to open URL in new browser window, like taps on links with target="_blank"
.
In conformity with the API Doc
I have overridden the onCreateWindow
of WebChromeClient
, but is not called when such a link is tapped. Could be a bug of this API level? I'm also overriding shouldOverrideUrlLoading
to avoid WebView
opening subsequent links in the built-in browser.
Here is my sample code that opens google.com
. To test it, tap "News" and then tap on any news title. The Android built-in browser normally opens it in a new browser window
.
package com.myexample;
import android.app.Activity;
import android.os.Bundle;
import android.os.Message;
import android.util.Log;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;
public class HelloAndroidActivity extends Activity {
private static String TAG = "WebViewTest";
private WebView mWebView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.i(TAG, "onCreate");
setContentView(R.layout.main);
mWebView = (WebView) findViewById(R.id.mywebview);
mWebView.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
mWebView.setWebChromeClient(new WebChromeClient() {
@Override
public boolean onCreateWindow(WebView view, boolean dialog, boolean userGesture, Message resultMsg) {
Toast.makeText(getApplicationContext(), "OnCreateWindow", Toast.LENGTH_LONG).show();
return true;
}
});
mWebView.loadUrl("http://www.google.com");
}
}
Make sure you set supportMultipeWindows to true. Without it the onCreateWindow of the WebChromeClient will never get called.
WebSettings settings = webView.getSettings();
settings.setSupportMultipleWindows(true);
Then register a WebChromeClient and override onCreateWindow
webView.setWebChromeClient(new WebChromeClient() {
@Override public boolean onCreateWindow(WebView view, boolean dialog, boolean userGesture, Message resultMsg)
{
WebView newWebView = new WebView(getContext());
addView(newWebView);
WebView.WebViewTransport transport = (WebView.WebViewTransport) resultMsg.obj;
transport.setWebView(newWebView);
resultMsg.sendToTarget();
return true;
}
});