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recently I started creating an Android app with WebView. The app has grown and I changed the activity with WebView to tabbed activity using fragments and ViewPager. And there started my issue. After some headaches I finally managed how to display proper fragments for each tab. Then I simply copied the code for WebView to one of the fragment but the fragment isn't showing the web page I want. Any help will be appreciated!
Here's the code:
fragment with webView
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class WebViewFragment extends Fragment {
public WebView mWebView;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
mWebView = (WebView) mWebView.findViewById(R.id.webview);
mWebView.loadUrl("google.com");
// Enable Javascript
WebSettings webSettings = mWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
// Force links and redirects to open in the WebView instead of in a browser
mWebView.setWebViewClient(new WebViewClient());
return inflater.inflate(R.layout.fragment_bugtracker, container, false);
}
}
and xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Tabs$BugtrackerFragment">
<WebView
android:id="@+id/webview"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
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The traditional way of sharing the data between the two fragments is implementing the callback using an interface that is cumbersome and may throw exceptions. But the modern way of doing that is using shared ViewModel. So in this article, it’s been demonstrated how the shared ViewModel can be used to communicate between the fragments.
As example we want to create a simple application that is built by two fragments: another one that show the web page in a WebView. landscape. In the landscape mode we want something like the image below: The first step we have to do is creating our layout. As we said we need two different layout one for portrait and one for landscape.
Create two Fragments with their own layouts naming Fragment1.kt and Fragment2.kt. For each of the fragment’s layouts, it contains one EditText to get the data to send for fragment 2 and one button, when clicked it shares the data to another fragment. To implement the layout for Fragment 1, invoke the following code inside the fragment_1.xml file
As XML layout to inflate in the fragment we have: In this method we simply set our custom adapter and the set the listener when the user clicks on an item. We will cover this later (if you are curious see Inter fragment communication).
Things to do like
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v=inflater.inflate(R.layout.fragment_bugtracker, container, false);
mWebView = (WebView) v.findViewById(R.id.webview);
mWebView.loadUrl("https://google.com");
// Enable Javascript
WebSettings webSettings = mWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
// Force links and redirects to open in the WebView instead of in a browser
mWebView.setWebViewClient(new WebViewClient());
return v;
}
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