title: How to start market search of my app
body: <p>I'm trying to launch the page of my app in android market from my activity. I am novice and maybe I'm making wrong coding this is what I wrote in the note.class </p>
  
  <pre><code> import android.app.Activity;
  import android.content.Intent;
  import android.net.Uri;
  import android.os.Bundle;
  import android.view.Menu;
  import android.view.MenuInflater;
  import android.view.MenuItem;
  import android.view.View;
  import android.webkit.WebView;
  import android.widget.Button;
  
  public class Note extends Activity{
      WebView mWebView;
      WebView tWebView;
      @Override
       protected void onCreate(Bundle savedInstanceState) {
                      // TODO Auto-generated method stub
              super.onCreate(savedInstanceState);
              setContentView(R.layout.note);
  
              mWebView = (WebView) findViewById(R.id.webview);    
  
                 String text = "&lt;html&gt;&lt;head&gt;&lt;meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\"&gt;&lt;/head&gt;&lt;body&gt;" + "&lt;p align=\"justify\"&gt;"                
                       + getString(R.string.fulldescription)+ "&lt;/p&gt; " + "&lt;/body&gt;&lt;/html&gt;";
  
                      mWebView.loadData(text, "text/html", "utf-8");
  
                      //seconda webview dove dormire-mangiare
  
                      tWebView = (WebView) findViewById(R.id.webview2);    
  
                         String text2 = "&lt;html&gt;&lt;head&gt;&lt;meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\"&gt;&lt;/head&gt;&lt;body&gt;" + "&lt;p align=\"justify\"&gt;" + getString(R.string.descriptionspart2) + "&lt;/p&gt; " 
                                       + "&lt;/body&gt;&lt;/html&gt;";       
  
                              tWebView.loadData(text2, "text/html", "utf-8");
  
              Button bnt = (Button)findViewById(R.id.back1);
  
              bnt.setOnClickListener(new View.OnClickListener() {
  
         public void onClick(View view) {
  
                      // avvia la prossima activity del primo video
  
             Intent i = new Intent(view.getContext(), Clipvideo1.class);
  
             view.getContext().startActivity(i);
  
                  }
  
              });
              Button app2 = (Button)findViewById(R.id.buy_app2);
              app2.setOnClickListener(new View.OnClickListener() {
  
                  public void onClick(View v) {
                      Intent intent = new Intent(Intent.ACTION_VIEW);
                      intent.setData(Uri.parse("market://details?id=com.wocmultimedia.Machu2a"));
                      startActivity(intent);
                      // TODO Auto-generated method stub
  
                  }
              });
  
          }
  
      @Override
      public boolean onCreateOptionsMenu(Menu menu) {
      MenuInflater inflater = getMenuInflater();
      inflater.inflate(R.menu.menu, menu);
      return true;
      }
      @Override
      public boolean onOptionsItemSelected(MenuItem item) {
      // Handle item selection
      switch (item.getItemId()) {
      case R.id.delfino:
          Intent g = new Intent(this, Main.class);
             startActivity(g);
        return true;
      case R.id.note:
          Intent l = new Intent(this, Note.class);
      startActivity(l);
          return true;
      case R.id.clipvideo:
          Intent k = new Intent(this, Clipvideo1.class);
             startActivity(k);
           return true;
      case R.id.map:
          Intent p = new Intent(this, Map.class);
             startActivity(p);
           return true;
      default:
          return super.onOptionsItemSelected(item);
      }
      }
  
  
      }
  </code></pre>
  
  <p>this is the note.xml layout</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="match_parent" android:orientation="vertical"
      android:layout_height="wrap_content"&gt;
  
  
      &lt;RelativeLayout android:id="@+id/relativeLayout3"
          android:layout_width="match_parent" android:layout_height="25dip"&gt;
          &lt;TextView android:textStyle="bold" android:textColor="#000000"
              android:text="@string/forewordtitle" android:background="#FFCC00"
              android:layout_width="match_parent" android:layout_height="fill_parent"
              android:paddingLeft="6dip" android:gravity="center" /&gt;
      &lt;/RelativeLayout&gt;
  
      &lt;ScrollView android:id="@+id/scrollView2"
          android:background="#E5E5C9" android:layout_width="fill_parent"
          android:layout_height="fill_parent"&gt;
          &lt;RelativeLayout android:layout_width="fill_parent"
              android:id="@+id/linearLayout2" android:layout_height="match_parent"&gt;
              &lt;ImageView android:id="@+id/foto1" android:layout_width="match_parent"
                  android:layout_height="200dip" android:adjustViewBounds="true"
                  android:layout_alignParentTop="false" android:background="#E5E5C9"
                  android:layout_marginTop="10dip" android:layout_marginBottom="8dip"
                  android:src="@drawable/foto1" /&gt;
              &lt;TextView android:textStyle="bold" android:textColor="#000000"
                  android:text="@string/informazioni" android:background="#E5E5C9"
                  android:layout_width="match_parent" android:layout_height="wrap_content"
                  android:paddingBottom="6dip" android:paddingLeft="6dip"
                  android:gravity="center" android:id="@+id/textinfo"
                  android:layout_below="@+id/foto1" /&gt;
              &lt;WebView android:layout_width="fill_parent"
                  android:paddingLeft="6dip" android:layout_height="wrap_content"
                  android:id="@+id/webview" android:layout_below="@+id/textinfo"
                  android:paddingRight="4dip" android:textColor="#000000"
                  android:textSize="18dip" android:gravity="fill_horizontal" /&gt;
  
              &lt;ImageView android:id="@+id/foto2" android:layout_width="fill_parent"
                  android:layout_height="200dip" android:adjustViewBounds="true"
                  android:layout_alignParentTop="false" android:layout_below="@+id/webview"
                  android:background="#E5E5C9" android:paddingTop="8dip"
                  android:layout_marginBottom="10dip" android:src="@drawable/foto2" /&gt;
              &lt;WebView android:layout_width="fill_parent"
                  android:paddingLeft="6dip" android:layout_height="wrap_content"
                  android:id="@+id/webview2" android:layout_below="@+id/foto2"
                  android:paddingRight="4dip" android:textColor="#000000"
                  android:textSize="18dip" android:gravity="fill_horizontal"
                  android:clickable="true" /&gt;
              &lt;TextView android:id="@+id/text_touroperator"
                  android:layout_width="fill_parent" android:layout_height="wrap_content"
                  android:layout_below="@+id/webview2" android:paddingRight="4dip"
                  android:textColor="#000000" android:textSize="18dip"
                  android:gravity="fill_horizontal" android:autoLink="web|email"
                  android:linksClickable="true" android:textColorLink="#669900"
                  android:text="@string/touroperator"
                  android:layout_marginBottom="6dip"
                  android:background="#E5E5C9" /&gt;
              &lt;TextView android:id="@+id/text_contact"
                  android:layout_width="fill_parent" android:layout_height="wrap_content"
                  android:layout_below="@id/text_touroperator" android:paddingRight="4dip"
                  android:textColor="#000000" android:textSize="18dip"
                  android:gravity="fill_horizontal" android:autoLink="web|email"
                  android:linksClickable="true" android:textColorLink="#669900"
                  android:background="@android:color/white" android:text="@string/contact" /&gt;
              &lt;ImageView android:layout_width="fill_parent"
                  android:layout_height="200dip" android:adjustViewBounds="true"
                  android:id="@+id/ImageView3" android:background="#E5E5C9"
                  android:layout_below="@+id/text_contact"
                  android:layout_alignParentLeft="true" android:src="@drawable/foto3"
                  android:paddingTop="10dip" android:layout_marginBottom="6dip"&gt;&lt;/ImageView&gt;
  
              &lt;LinearLayout android:id="@+id/linearLayout3"
                  android:layout_height="wrap_content" android:layout_width="fill_parent"
                  android:orientation="vertical" android:layout_below="@+id/ImageView3"&gt;
                  &lt;Button android:text="@string/playbutton" android:gravity="right"
                  android:layout_width="match_parent" android:id="@+id/back1"
                  android:textSize="8dip" android:layout_height="30dip"
                  &gt;&lt;/Button&gt;
                  &lt;Button android:id="@+id/buy_app2"
              android:layout_width="match_parent" 
              android:layout_height="30dip"
              android:textSize="8dip"
              android:text="@string/buyapp2"&gt;&lt;/Button&gt;
              &lt;/LinearLayout&gt;
          &lt;/RelativeLayout&gt;
      &lt;/ScrollView&gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>Thank you for helping cause when I run it works but if I click the second button to launch the market I get the error the application ...has stopped unexpectedly. Plaese, try again</p>
  
  <p>Here's LOG CAT </p>
  
  <pre><code>08-30 08:20:00.887: DEBUG/AndroidRuntime(343): &gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt; AndroidRuntime START &lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;
  08-30 08:20:00.887: DEBUG/AndroidRuntime(343): CheckJNI is ON
  08-30 08:20:01.687: DEBUG/AndroidRuntime(343): --- registering native functions ---
  08-30 08:20:03.366: DEBUG/dalvikvm(275): GC_EXPLICIT freed 145 objects / 7736 bytes in 90ms
  08-30 08:20:11.926: DEBUG/PackageParser(59): Scanning package: /data/app/vmdl18326.tmp
  08-30 08:20:13.556: INFO/PackageManager(59): Removing non-system package:com.wocmultimedia.MachuNew1
  08-30 08:20:13.556: INFO/ActivityManager(59): Force stopping package com.wocmultimedia.MachuNew1 uid=10053
  08-30 08:20:13.897: DEBUG/dalvikvm(59): GC_FOR_MALLOC freed 14182 objects / 710320 bytes in 315ms
  08-30 08:20:14.337: DEBUG/PackageManager(59): Scanning package com.wocmultimedia.MachuNew1
  08-30 08:20:14.346: INFO/PackageManager(59): Package com.wocmultimedia.MachuNew1 codePath changed from /data/app/com.wocmultimedia.MachuNew1-2.apk to /data/app/com.wocmultimedia.MachuNew1-1.apk; Retaining data and using new
  08-30 08:20:14.357: INFO/PackageManager(59): /data/app/com.wocmultimedia.MachuNew1-1.apk changed; unpacking
  08-30 08:20:14.396: DEBUG/installd(35): DexInv: --- BEGIN '/data/app/com.wocmultimedia.MachuNew1-1.apk' ---
  08-30 08:20:15.527: DEBUG/dalvikvm(351): DexOpt: load 157ms, verify 752ms, opt 7ms
  08-30 08:20:15.596: DEBUG/installd(35): DexInv: --- END '/data/app/com.wocmultimedia.MachuNew1-1.apk' (success) ---
  08-30 08:20:15.627: INFO/ActivityManager(59): Force stopping package com.wocmultimedia.MachuNew1 uid=10053
  08-30 08:20:15.627: WARN/PackageManager(59): Code path for pkg : com.wocmultimedia.MachuNew1 changing from /data/app/com.wocmultimedia.MachuNew1-2.apk to /data/app/com.wocmultimedia.MachuNew1-1.apk
  08-30 08:20:15.636: WARN/PackageManager(59): Resource path for pkg : com.wocmultimedia.MachuNew1 changing from /data/app/com.wocmultimedia.MachuNew1-2.apk to /data/app/com.wocmultimedia.MachuNew1-1.apk
  08-30 08:20:15.646: DEBUG/PackageManager(59):   Activities: com.wocmultimedia.MachuNew1.Main com.wocmultimedia.MachuNew1.Note com.wocmultimedia.MachuNew1.Clipvideo1 com.wocmultimedia.MachuNew1.Map
  08-30 08:20:16.027: INFO/installd(35): move /data/dalvik-cache/data@app@com.wocmultimedia.MachuNew1-1.apk@classes.dex -&gt; /data/dalvik-cache/data@app@com.wocmultimedia.MachuNew1-1.apk@classes.dex
  08-30 08:20:16.027: DEBUG/PackageManager(59): New package installed in /data/app/com.wocmultimedia.MachuNew1-1.apk
  08-30 08:20:16.516: INFO/ActivityManager(59): Force stopping package com.wocmultimedia.MachuNew1 uid=10053
  08-30 08:20:16.747: DEBUG/dalvikvm(124): GC_EXPLICIT freed 106 objects / 3928 bytes in 180ms
  08-30 08:20:17.457: WARN/RecognitionManagerService(59): no available voice recognition services found
  08-30 08:20:17.657: DEBUG/dalvikvm(154): GC_EXPLICIT freed 2551 objects / 134376 bytes in 878ms
  08-30 08:20:18.997: WARN/dalvikvm(59): threadid=10: spin on suspend #1 threadid=8 (pcf=0)
  08-30 08:20:19.541: WARN/dalvikvm(59): threadid=10: spin on suspend resolved in 1600 msec
  08-30 08:20:19.856: DEBUG/dalvikvm(59): GC_EXPLICIT freed 8142 objects / 510720 bytes in 1914ms
  08-30 08:20:21.516: INFO/installd(35): unlink /data/dalvik-cache/data@app@com.wocmultimedia.MachuNew1-2.apk@classes.dex
  08-30 08:20:21.556: DEBUG/AndroidRuntime(343): Shutting down VM
  08-30 08:20:21.566: DEBUG/dalvikvm(343): Debugger has detached; object registry had 1 entries
  08-30 08:20:21.577: INFO/AndroidRuntime(343): NOTE: attach of thread 'Binder Thread #3' failed
  08-30 08:20:22.787: DEBUG/AndroidRuntime(357): &gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt; AndroidRuntime START &lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;
  08-30 08:20:22.787: DEBUG/AndroidRuntime(357): CheckJNI is ON
  08-30 08:20:23.906: DEBUG/AndroidRuntime(357): --- registering native functions ---
  08-30 08:20:26.496: DEBUG/dalvikvm(284): GC_EXPLICIT freed 812 objects / 57032 bytes in 189ms
  08-30 08:20:28.156: INFO/ActivityManager(59): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.wocmultimedia.MachuNew1/.Main }
  08-30 08:20:28.986: DEBUG/AndroidRuntime(357): Shutting down VM
  08-30 08:20:29.008: DEBUG/dalvikvm(357): Debugger has detached; object registry had 1 entries
  08-30 08:20:29.057: INFO/AndroidRuntime(357): NOTE: attach of thread 'Binder Thread #3' failed
  08-30 08:20:29.107: INFO/ActivityManager(59): Start proc com.wocmultimedia.MachuNew1 for activity com.wocmultimedia.MachuNew1/.Main: pid=364 uid=10053 gids={}
  08-30 08:20:31.336: INFO/ActivityManager(59): Displayed activity com.wocmultimedia.MachuNew1/.Main: 2372 ms (total 2372 ms)
  08-30 08:20:34.767: INFO/ActivityManager(59): Starting activity: Intent { cmp=com.wocmultimedia.MachuNew1/.Note }
  08-30 08:20:37.817: DEBUG/dalvikvm(364): GC_FOR_MALLOC freed 1537 objects / 290864 bytes in 349ms
  08-30 08:20:38.717: INFO/ActivityManager(59): Displayed activity com.wocmultimedia.MachuNew1/.Note: 3825 ms (total 3825 ms)
  08-30 08:20:38.956: WARN/ActivityManager(59): Launch timeout has expired, giving up wake lock!
  08-30 08:20:41.256: WARN/KeyCharacterMap(364): No keyboard for id 0
  08-30 08:20:41.256: WARN/KeyCharacterMap(364): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
  08-30 08:20:46.457: DEBUG/dalvikvm(290): GC_EXPLICIT freed 2057 objects / 145632 bytes in 947ms
  08-30 08:20:49.556: DEBUG/dalvikvm(275): GC_EXPLICIT freed 177 objects / 12728 bytes in 118ms
  08-30 08:20:50.718: INFO/ActivityManager(59): Starting activity: Intent { act=android.intent.action.VIEW dat=market://details?id=com.wocmultimedia.Machu2a }
  08-30 08:20:51.066: DEBUG/AndroidRuntime(364): Shutting down VM
  08-30 08:20:51.066: WARN/dalvikvm(364): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
  08-30 08:20:51.566: DEBUG/dalvikvm(364): GC_FOR_MALLOC freed 1927 objects / 362728 bytes in 136ms
  08-30 08:20:51.576: ERROR/AndroidRuntime(364): FATAL EXCEPTION: main
  08-30 08:20:51.576: ERROR/AndroidRuntime(364): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.VIEW dat=market://details?id=com.wocmultimedia.Machu2a }
  08-30 08:20:51.576: ERROR/AndroidRuntime(364):     at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1408)
  08-30 08:20:51.576: ERROR/AndroidRuntime(364):     at android.app.Instrumentation.execStartActivity(Instrumentation.java:1378)
  08-30 08:20:51.576: ERROR/AndroidRuntime(364):     at android.app.Activity.startActivityForResult(Activity.java:2817)
  08-30 08:20:51.576: ERROR/AndroidRuntime(364):     at android.app.Activity.startActivity(Activity.java:2923)
  08-30 08:20:51.576: ERROR/AndroidRuntime(364):     at com.wocmultimedia.MachuNew1.Note$2.onClick(Note.java:62)
  08-30 08:20:51.576: ERROR/AndroidRuntime(364):     at android.view.View.performClick(View.java:2408)
  08-30 08:20:51.576: ERROR/AndroidRuntime(364):     at android.view.View$PerformClick.run(View.java:8816)
  08-30 08:20:51.576: ERROR/AndroidRuntime(364):     at android.os.Handler.handleCallback(Handler.java:587)
  08-30 08:20:51.576: ERROR/AndroidRuntime(364):     at android.os.Handler.dispatchMessage(Handler.java:92)
  08-30 08:20:51.576: ERROR/AndroidRuntime(364):     at android.os.Looper.loop(Looper.java:123)
  08-30 08:20:51.576: ERROR/AndroidRuntime(364):     at android.app.ActivityThread.main(ActivityThread.java:4627)
  08-30 08:20:51.576: ERROR/AndroidRuntime(364):     at java.lang.reflect.Method.invokeNative(Native Method)
  08-30 08:20:51.576: ERROR/AndroidRuntime(364):     at java.lang.reflect.Method.invoke(Method.java:521)
  08-30 08:20:51.576: ERROR/AndroidRuntime(364):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
  08-30 08:20:51.576: ERROR/AndroidRuntime(364):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
  08-30 08:20:51.576: ERROR/AndroidRuntime(364):     at dalvik.system.NativeStart.main(Native Method)
  08-30 08:20:51.606: WARN/ActivityManager(59):   Force finishing activity com.wocmultimedia.MachuNew1/.Note
  08-30 08:20:52.406: WARN/ActivityManager(59): Activity pause timeout for HistoryRecord{45006238 com.wocmultimedia.MachuNew1/.Note}
  08-30 08:21:03.998: WARN/ActivityManager(59): Activity destroy timeout for HistoryRecord{45006238 com.wocmultimedia.MachuNew1/.Note}
  </code></pre>
  
  <p>THIS IS THE Manifest file</p>
  
  <pre><code>&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
        android:versionName="1.0" android:versionCode="1" package="com.wocmultimedia.MachuNew1"&gt;
      &lt;uses-sdk android:minSdkVersion="8" /&gt;
      &lt;supports-screens android:resizeable="true" android:largeScreens="true" android:normalScreens="true" android:smallScreens="true" android:anyDensity="true"&gt;&lt;/supports-screens&gt;
  
      &lt;application android:icon="@drawable/icon" android:label="@string/app_name"&gt;
          &lt;activity android:name="Main"&gt;
              &lt;intent-filter&gt;
                  &lt;action android:name="android.intent.action.MAIN" /&gt;
                  &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
              &lt;/intent-filter&gt;
          &lt;/activity&gt;
          &lt;activity android:name="Note" android:launchMode="standard" android:label="ECOS - Non solo natura"&gt;
              &lt;intent-filter&gt;
              &lt;action android:name="android.intent.action.VIEW" /&gt;
              &lt;category android:name="android.intent.category.LAUNCHER" /&gt;  &lt;/intent-filter&gt;
          &lt;/activity&gt;
          &lt;activity android:name="Clipvideo1" 
          android:launchMode="standard" 
          android:screenOrientation="landscape"&gt;&lt;/activity&gt;
          &lt;activity android:name=".Map"&gt;&lt;/activity&gt;
      &lt;/application&gt;
  &lt;/manifest&gt;
  </code></pre>
  
  <p>Here's a screen shot of the project
  <img src="https://i.stack.imgur.com/MB0NF.jpg" alt="enter image description here"></p>