I'm trying to create an app that uses Webview to connect to a raspberry pi web server I've created. It contains basically a few buttons that act as a garage door opener. For some reason, when I launch the app, it just displays a blank screen; but if I put in another website like Google in myWebView.loadUrl() , it loads just fine. I've added the
'<uses-permission android:name="android.permission.INTERNET" />'
inside the manifest
Here's the Activity:
public class MainActivity extends AppCompatActivity {
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WebView myWebView = (WebView) findViewById(R.id.webview);
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
myWebView.loadUrl("http://192.168.1.24:8000/garage.html");
}
}
Here is the xml in content_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="com.example.michael.garageopener.MainActivity"
tools:showIn="#layout/activity_main">
<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>
Am i doing anything wrong here?
Related
this is the xml file for the webview
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.testing.WebViewExample">
<WebView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/webView"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
and this code is for Webview.java
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WebView mywebview = (WebView) findViewById(R.id.webView);
mywebview.loadUrl("https://www.google.com/");
}
}
But the problem is I am not able to view the google and it show an error as webpage not available
the webpage at https://www.google.com/ could not be loaded because:
net::ERR_CACHE_MISS
You may need to add the INTERNET permission to your manifest file:
<uses-permission android:name="android.permission.INTERNET"/>
Another Reference: loadUrl() in Android Webview fails with net::ERR_CACHE_MISS
I created a new project in Android. We use the following code:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.web);
webView = (WebView) findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("http://t.co/YoHe3NKrJH");
He is opening Chrome.
I need to close it automatically after 10s.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<WebView
android:id="#+id/webView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
I am new to android development but after searching for a while i can not get a solution to maximise my webview in my android window (12080*800 in my current test). Same problem appear on the physical device (a samsung 10.1)
https://dl.dropbox.com/s/d57nmlhbs8pu6k7/2013-06-11%20at%2010.18.15.png
<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"
android:gravity="top"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<WebView
android:id="#+id/webView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentTop="true"
android:layout_margin="0dp"
android:padding="0dp"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" />
</RelativeLayout>
and my code:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Remove title bar
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
//Remove notification bar and set fullscreen
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_main);
// add the webview
WebView www = (WebView) findViewById(R.id.webView);
www.setWebViewClient(new WebViewClient());
www.getSettings().setJavaScriptEnabled(true);
www.getSettings().setDomStorageEnabled(true);
www.getSettings().setSavePassword(false);
www.getSettings().setSaveFormData(false);
www.getSettings().setUseWideViewPort(true);
// load html
www.loadUrl("http://192.168.1.8:3000/app/tgg4yme");
}
I have tried to fill the window through the editor too... no success
Thank you
How to open this link in webView. This is running on browser but it does not run in webView android. Please give solution.
Activity:
import android.app.Activity;
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.webView1);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("http://www.google.com");
}
}
And your 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"
/>
Check this out,
it has worked for me...but i dont know whether it got any side effects or not but works fine with me
super.onCreate(savedInstanceState);
WebView theWebPage = new WebView(this);
theWebPage.getSettings().setJavaScriptEnabled(true);
theWebPage.getSettings().setPluginState(PluginState.ON);
setContentView(theWebPage);
theWebPage.loadUrl("http://www.hkmytravel.com");
Source can be found in [http://www.androidpanna.com/functionality/webview-open-url-webpage-within-the-android-app-when-launch-android-development]
Test the following:
<?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"
/>
works for me
webView = (WebView) findViewById(R.id.webView1);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("https://www.google.com/");
XML
<WebView
android:id="#+id/webView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
add in manifest
<uses-permission android:name="android.permission.INTERNET"/>
Is it possible to create a magazine based on Android embedding flash in it?
As your question is very wilde and generic, I can only say "yes that's possible"!
Here is a link to embed your swf file into an Android application.
Load an SWF into a WebView
public class Test3Activity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
String url ="file:///android_asset/qualibus.swf";
WebView wv=(WebView) findViewById(R.id.webView1);
wv.getSettings().setPluginsEnabled(true);
wv.loadUrl(url);
}
}
main.xml:
<?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="match_parent"
android:layout_height="match_parent">
</WebView>
</LinearLayout>
Result: