Develop Reference

How to use webView in read mode kotlin?

I have an app and i want to open the URL with Reading Mode
Without ads or something the reader don't need to see
How can i do that haw can i enable the reading mode on in kotlin ?

Try it with WebView,
In .xml file add this code:
<?xml version="1.0" encoding="utf-8"?>
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/webView"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
And inside activity(or fragment)
import android.os.Bundle;
import android.webkit.WebView;
public class WebViewActivity extends Activity {
private WebView webView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.webview);
webView = (WebView) findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("http://www.google.com");
}
}

WebView example android

There is a error in mView, I need solution
package com.example.account;
import android.app.Activity;
import android.os.Bundle;
public class WebView extends Activity {
private WebView webView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
webView = (WebView) findViewById(R.id.webView1);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("http://www.google.com");
}
}
My xml
<?xml version="1.0" encoding="utf-8"?>
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/webView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
Cannot cast from view to webview
WebView mView = (WebView) findViewById(R.id.webView1)

Try this layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<WebView
android:id="#+id/webView1"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
give me feedback on this.
Update:
You should change your Activity name with Different one. or defined your WebView with different name like:
WebView mView2 = (WebView) findViewById(R.id.webView1)

You are using your activity name as WebView. This name is already used by SDK API. This is the reason it is giving you error.
To solve it, just rename your WebView.java file to some another name like MyWebView.java then your problem will surely solve.
To safely rename your .java file, Just go to packageexplorer , select WebView.java and press F2, and give new name.

Try this, it may help
1 . Using Eclipse, create a new Android project and name it as WebView.
2 . Add the following statements to the main.xml file:
<?xml​ version=”1.0” ​encoding=”utf-8”?>
<LinearLayout ​xmlns:android=”http://schemas.android.com/apk/res/android” ​​​​android:orientation=”vertical” ​​​​
android:layout_width=”fill_parent” ​
​​​android:layout_height=”fill_parent” ​​​​>
<WebView
android:id=”#+id/webview1” ​​
​​android:layout_width=”wrap_content” ​
​​​android:layout_height=”wrap_content” />
</LinearLayout>
3 . In the MainActivity.java file, add the following statements in bold:
package​ com.emergingandroidtech.WebView;
import​ android.app.Activity;
import ​android.os.Bundle;
import android.webkit.WebSettings;
import android.webkit.WebView;
public ​class ​MainActivity​ extends​ Activity
​{
​​​​
/**​Called​ when​ the ​activity ​is ​first ​created.​*/
​#Override ​​
​​public ​void ​onCreate(Bundle​savedInstanceState)​
{
​​​​​​​​super.onCreate(savedInstanceState);
​setContentView(R.layout.main);
​​​​​​​​
WebView wv = (WebView) findViewById(R.id.webview1);
​​​​​​​​WebSettings webSettings = wv.getSettings(); ​​
​​​​​​webSettings.setBuiltInZoomControls(true);
​​​​​​​​wv.loadUrl( ​​​​​​​​“www.google.com”);
​​​​}
}
4. Don't forget to give the internet permission in manifest file
Thank you

You should keep webview inside any parent view

Do not use reserved words as your variable, class and method name.
Here, WebView is reserved or already used by SDK. If you use that word again, Compiler will get confused.
activity_main.xml
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/webview"
android:layout_width="match_parent"
android:layout_height="match_parent" />
MainActivity.java
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.WebView;
public class MainActivity extends AppCompatActivity
{
private WebView webview;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webview=(WebView)findViewById(R.id.webview);
//loads androidride homepage to webview
webview.loadUrl("https://www.androidride.com");
}
}

My webview app doesn't open

I have made an webview app. but it doesn't work.
He is stuck when i test it on an android device
FullscreenActivity.java
package com.solidos.neshaniha;
import android.app.Activity;
import android.os.Bundle;
import android.webkit.WebView;
public class FullscreenActivity extends Activity {
private WebView webView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fullscreen);
webView.loadUrl("http://www.mywebsite.nl/");
}
}
activity_fullscreen.xml
<FrameLayout 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"
android:background="#0099cc"
tools:context=".FullscreenActivity" >
</FrameLayout>
Who can help me?
Thanx

You don't have a webview in there at all. Change your layout to:
<FrameLayout 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"
android:background="#0099cc"
tools:context=".FullscreenActivity" >
<WebView
android:id="#+id/webView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</FrameLayout>
Then in your Activity do:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fullscreen);
webView = (WebView) findViewById(R.id.webView);
webView.loadUrl("http://m.neshaniha.org/");
}
Also make sure this is in your manifest.xml
<uses-permission android:name="android.permission.INTERNET" />

You didn't initialize the webview.
Like this :
private WebView webView;
webview = (Webview)findViewById(R.id.webview1);
WebSettings settings = webview.getSettings();
settings.setJavaScriptEnabled(true);
webview.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);
webview.loadURL("nananan");

Add webView in xml as below:
<FrameLayout 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"
android:background="#0099cc"
tools:context=".FullscreenActivity" >
<WebView
android:id="#+id/webView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</FrameLayout>
Please initialize the WebView as below:
WebView webView = (WebView)findViewById(R.id.webView);
webView.setWebViewClient(new WebViewClient());
webView.loadUrl("http://m.neshaniha.org/");

First go like that:
WebView myWebView = (WebView) findViewById(R.id.webview);
You should define the #+id of your WebView, like that:
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>

In your java code, you declared your WebView as a member variable, but you are not initialising it to anything. Therefore when you try to open the URL in it, you are getting a NullPointerException. There are two issues with your code.
First, you need to add the WebView to your layout:
<FrameLayout ...>
<WebView android:id="#+id/webview" ... />
</FrameLayout>
Then in your java code you need to find this webview and assign it to your variable before loading the url:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fullscreen);
webView = (WebView)findViewById(R.id.webview);
webView.loadUrl("http://m.neshaniha.org/");
}

Changing the background of webview in android

I am developing an android game application,I have implemented all the screens.Now i want to change the webview background color,Can anybody guide me.Here is my xml file
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#drawable/background">
<WebView
android:id="#+id/webbrowser"
android:layout_width="fill_parent"
android:layout_height="345px"
android:layout_marginTop="46px"/>
<Button
android:id="#+id/Btn"
android:background="#drawable/back_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="109px"
android:layout_marginTop="37px">
</Button>
</LinearLayout>
And My Java file is
package com.tli.roadtripbingo;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
public class WebView1 extends Activity {
private Button Back;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.webview);
Back = (Button)findViewById(R.id.back);
WebView webView = (WebView) findViewById(R.id.webbrowser);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("http://www.vikingredning.no/skilt.aspx");
webView.setWebViewClient(new HelloWebViewClient());
}
class HelloWebViewClient extends WebViewClient
{
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url)
{
view.loadUrl(url);
return true;
}
};
}
Thanks in advance
Regards
Tushar

You can find answer here Change Background color and font color
WebView myWebView = (WebView) findViewById(R.id.myWebView);
myWebView.setBackgroundColor(Color.parseColor("#123456"));

You can make the WebView transparent like this:
WebView webView = (WebView) findViewById(R.id.webView);
webView.setBackgroundColor(Color.TRANSPARENT);

<LinearLayout
android:id="#+id/web_layout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#color/web_bg_color"
android:gravity="center" >
<WebView
android:id="#+id/webview"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
WebView mWebView = (WebView) findViewById(R.id.webview);
mWebView.setBackgroundColor(Color.TRANSPARENT);
mWebView.setLayerType(WebView.LAYER_TYPE_SOFTWARE, null);
It worked for me in lollipop also.
try it once!

You may also want to reload the page after changing colors by using the reload() method:
webView.reload();

Basic app with webview not working - FC on start

I am trying to create a simple webview and I am getting FC on each start.
Here is my MainActivity.java file:
package com.jerdog.apps;
import android.app.Activity;
import android.os.Bundle;
import android.webkit.WebView;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
WebView myWebView = (WebView) findViewById(R.layout.main);
myWebView.loadUrl("http://www.google.com");
}
}
and here is my res/layout/main.xml file
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/hello"
/>
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
</LinearLayout>
I am including my logcat from the moment I press Run in Eclipse at pastebin
http://pastebin.com/5trRw9Bd

This line:
WebView myWebView = (WebView) findViewById(R.layout.main);
is incorrect, and myWebView is null. Thus the following line throws the NullPointerException
Change the line to:
WebView myWebView = (WebView) findViewById(R.id.webview);
findViewById takes the id of the View you wish to find as an input, however you were passing in your layout. Changing this to the id of the WebView element from your main.xml file should fix the issue. There is a tutorial if you need a reference implementation.