Android activity added but never triggering onCreate()

Question

I've added a new Activity, but the Toast message doesn't ever appear. It's not Toast specific though, it doesn't reach this class in general.

public class SecondActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // This should appear
        Toast(..., "Inside of SecondActivity onCreate", ...).show();

    }
    ...

My AndroidManifest looks like this,

<application
    ...
    <activity
        android:name=".MainActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity android:name=".SecondActivity" ></activity>
</application>

Not enough information. Did you start SecondActivity from MainActivity? — Michael Yaworski, Feb 23 '14 at 23:04

score 0 · Accepted Answer · answered Feb 23 '14 at 23:01

you never call show() on your Toast
the launcher activity is MainActivity, but the Toast is inside SecondActivity. Did you add the logic to launch SecondActivity?

Edit:

From your Manifest I can read

<activity
        android:name=".MainActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>

So, when you execute your Application, the first activity launched will be MainActivity. Inside it you need to launch SecondActivity. For instance inside MainActivity's onCreate you could have something like:

Intent intent = new Intent(this, SecondActivity.class);
startActivity(intent);

Sorry, I didn't fully write out Toast but assume that part works. It might be #2 though, can you elaborate? — user3255893, Feb 23 '14 at 23:02

Android activity added but never triggering onCreate()

1 Answers1