Question

I’m attempting to open my class Speak2 from my main activity with this snippet:

Intent i = new Intent("R.voice.Speak2");
startActivity(i);

This is the full code from the first activity:

public class recon extends Activity implements OnClickListener {

    ListView lv;
    static final int check = 2000;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.voice);
        lv = (ListView) findViewById(R.id.lvVoiceReturn);
        Button b = (Button) findViewById(R.id.bVoice);
        b.setOnClickListener(this);
    }

    public void onClick(View v) {
        Intent i = new Intent(recon.this, Speak2.class); 
        startActivity(i);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // TODO Auto-generated method stub
        super.onActivityResult(requestCode, resultCode, data);
    }

}

My program is simple. The button appears from voice.xml layout and when pressed launches the class activity Speak2. Why does the second activity never show?

Answer 1

Try this way and make sure your Activity Speak2 is also defined in your AndroidManifest.xml, otherwise you’re going to get an exception.

// MainActivity is your main activity
Intent i = new Intent(MainActivity.this, Speak2.class); 
startActivity(i);

Your <application> tag in AndroidManifest.xml should look like this:

<application android:icon="@drawable/ic_launcher" android:label="@string/app_name" >
    <activity android:label="@string/app_name" android:name="recon" >
        <intent-filter > 
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity android:name="Speak2" />
</application>