Load Image from URL

Use the following code to display the picture in ImageView,
URL url = new URL("http://www.vijaynetwork.com/vijay_top_logo.jpg");
Bitmap bmp = BitmapFactory.decodeStream(url.openConnection().getInputStream());
imageView.setImageBitmap(bmp);

How to open a new layout after button click in android

Use the below code,

 Button next = (Button) findViewById(R.id.mybutton1);

next.setOnClickListener(new View.OnClickListener()
{
            public void onClick(View view)
          {
                Intent myIntent = new Intent(view.getContext(), my_activity.class);
                startActivityForResult(myIntent, 0);
            }

   });

How to write static HTML code in WebView control

Apply the below code,

webView = (WebView) findViewById(R.id.webView1);

webViewSettings = webView.getSettings();

webViewSettings.setJavaScriptCanOpenWindowsAutomatically(true);

webViewSettings.setJavaScriptEnabled(true);

webViewSettings.setBuiltInZoomControls(true);

webViewSettings.setPluginState(PluginState.ON);

webView.getSettings().setJavaScriptEnabled(true);

String data="<h1>welcome to Android example..Write your own HTML code here..</h1><br>";

webView.loadData(data, "text/html","utf-8");

How to enable Java Script in WebView

       myWebView = (WebView) findViewById(R.id.WebView1);
       WebSettings webSettings = myWebView.getSettings();
        webSettings.setJavaScriptEnabled(true);

How to Zoom out WebView content

        myWebView.setInitialScale(60);
        myWebView.getSettings().setLoadWithOverviewMode(true);
        myWebView.getSettings().setUseWideViewPort(true);

How to load a web page in webview control

WebView myWebView;      

myWebView = (WebView) findViewById(R.id.WebView1);
myWebView.loadUrl("http://www.google.com");

Playing Ringtone

MediaPlayer player = MediaPlayer.create(this, Settings.System.DEFAULT_RINGTONE_URI);
try
{
     player.prepare();
}
catch (IllegalStateException e)
{
      // TODO Auto-generated catch block
      e.printStackTrace();
} catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}
player.start();
//5 sec alaram
try
{
    Thread.sleep( 1000 );
}
catch (InterruptedException e)
{
    // TODO Auto-generated catch block
     e.printStackTrace();
}
player.stop();
Log.i("info","Alaram done");