android app crashing on startActivity()

Question

I have started an Intent and asked it to go to the main activity, when it attempts it the app crashes.

Here is the code that tries to go to the main activity.

Intent i = new Intent(
".MAIN_ACTIVITY");
startActivity(i);   

Here is the XML manifest for Main_Activity.

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

        <category android:name="android.intent.category.DEFAULT" />
    </intent-filter>
</activity>

I'm still pretty new to this so any help and/or advice is of great value.

Answer 1

Write like this :

Intent i = new Intent(MainActivity.this, NewActivity.class);
startActivity(i);

Also you need to declare both activity class in manifest file like this:

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

    <category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
    android:name=".NewActivity"
    android:label="@string/app_name" >
</activity>