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POLaunching activity from android options menu
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  1. POLaunching activity from android options menu
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    copied!<p>I have looked through these forums to find a solution to this problem, and even though there appear to be solutions, none of them seem to be working for me. So here goes.</p> <p>I am a newbie to Android development. I have an app with an options menu. When I click on one to the options, I want it to launch a new activity - but I keep getting the error </p> <pre><code>Intent cannot be resolved to a type </code></pre> <p>in home.java on the line:</p> <pre><code>Intent intent = new Intent(this, about.class); </code></pre> <p>Below is all of my code that I believe is relevant. Please let me know if you need to see anything else. As I said, I have tried to follow other questions, but none of them seem to work for me (as-in the below code seems to work for everyone else). Any help would be awesome.</p> <p>I have my menu defined in res/menu/main_menu.xml by:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;menu xmlns:android="http://schemas.android.com/apk/res/android"&gt; &lt;item android:id="@+id/home" android:icon="@drawable/ic_menu_home" android:title="@string/home" /&gt; &lt;item android:id="@+id/about" android:icon="@drawable/ic_menu_about" android:title="@string/about" /&gt; &lt;/menu&gt; </code></pre> <p>I have two activities - home.java and about.java. Home.java is the activity that is launched when the app is launched and is shown below.</p> <pre><code>package ca.example.home; import android.app.Activity; import android.os.Bundle; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; public class home extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.main_menu, menu); return true; } public boolean onOptionsItemSelected(MenuItem item) { // Handle item selection switch (item.getItemId()) { case R.id.home: return true; case R.id.about: Intent intent = new Intent(this, about.class); startActivity(intent); return true; default: return super.onOptionsItemSelected(item); } } } </code></pre> <p>About.java is the new activity to be launched and is shown below:</p> <pre><code>package ca.brianmccain.nbla; import android.app.Activity; import android.os.Bundle; import android.view.Menu; import android.view.MenuInflater; public class about extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.about); } public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.main_menu, menu); return true; } } </code></pre> <p>I have changed the manifest to:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" package="ca.example.home" android:versionCode="1" android:versionName="1.0"&gt; &lt;uses-sdk android:minSdkVersion="8" /&gt; &lt;application android:icon="@drawable/icon" android:label="@string/app_name" android:debuggable="true"&gt; &lt;activity android:name=".home" android:label="@string/app_name"&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=".about"&gt; &lt;/activity&gt; &lt;/application&gt; &lt;/manifest&gt; </code></pre>
 

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