Create a custom WebView
15,121
You should probably rewrite your "MyWebView" class. Your method "initView" generates a new MyWebView object everytime but it is never connected to your MainActivity. This could be why you don't see it.
Maybe try something like (untested)
public class MyWebView extends WebView {
public MyWebView(Context context) {
super(context);
initView(context);
}
public MyWebView(Context context, AttributeSet attrs) {
super(context, attrs);
initView(context);
}
private void initView(Context context){
// i am not sure with these inflater lines
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
// you should not use a new instance of MyWebView here
// MyWebView view = (MyWebView) inflater.inflate(R.layout.custom_webview, this);
this.getSettings().setJavaScriptEnabled(true) ;
this.getSettings().setUseWideViewPort(true);
this.getSettings().setLoadWithOverviewMode(true);
this.getSettings().setDomStorageEnabled(true);
}
}
And call it with
public class MainActivity extends AppCompatActivity {
MyWebView mWebView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mWebView = (MyWebView) findViewById(R.id.web_view);
}
@Override
protected void onResume() {
mWebView.loadUrl("https://www.google.com/");
}
}
Author by
Delphian
Updated on June 11, 2022Comments
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Delphian almost 2 years
I have a lot of WebView in different parts of the program, but these WebViews does not differ each other that is why I want to create a custom WebView with necessary settings. At the current moment, WebView doesn't show, but no errors. Am I doing something wrong?
public class MyWebView extends WebView { MyWebView mMyWebView; public MyWebView(Context context) { super(context); } public MyWebView(Context context, AttributeSet attrs) { super(context, attrs); } public MyWebView initView(Context context){ LayoutInflater inflater = (LayoutInflater) context .getSystemService(Context.LAYOUT_INFLATER_SERVICE); MyWebView view = (MyWebView) inflater.inflate(R.layout.custom_webview, this); view.getSettings().setJavaScriptEnabled(true) ; view.getSettings().setUseWideViewPort(true); view.getSettings().setLoadWithOverviewMode(true); view.getSettings().setDomStorageEnabled(true); return view; } }
custom_webview.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <WebView android:id="@+id/custom_webview" android:layout_width="match_parent" android:layout_height="match_parent"/> </LinearLayout>
MainActivity:
public class MainActivity extends AppCompatActivity { MyWebView mWebView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mWebView = new MyWebView(MainActivity.this); mWebView = mWebView.initView(MainActivity.this); mWebView = (MyWebView) findViewById(R.id.web_view); } @Override protected void onResume() { mWebView.loadUrl("https://www.google.com/"); } }
main_activity.xml:
<com.mypack.webview.MyWebView android:id="@+id/web_view" android:layout_below="@+id/start_URL" android:layout_width="match_parent" android:layout_height="match_parent"/>
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Delphian over 7 yearsThank you! It works when I use the line: mWebView = (MyWebView) findViewById(R.id.web_view), but with the line: mWebView = new MyWebView(MainActivity.this) doesn't work!
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Stefan Lindner over 7 yearsThank you for the acceptance, i will update the code again soon