How to change the startup activity in android

Question

For the first time use of the application I will show the user with a login screen which i will defined in manifest file as "android.intent.action.MAIN". After a successful login, each time application starts I want the user to see the home screen. Please let me know how i can achieve this.

Also please let me know is there any way I can change the MAIN activity programmatically after a successful login, So that I can redirect to the home screen.

Thanks,

Vijay

After Successful login you can store your data in SharedPreferences and when again application start check the SharedPreferences. If there is value then start other activity else login setContentView. — kalpana c, Jul 10 '12 at 11:26
I think this link will help you.... [link](http://blog.donnfelker.com/2011/02/17/android-a-simple-eula-for-your-android-apps/) Thanks.... — user4232, Jul 10 '12 at 11:27
@casperOne I don't think that's the case here... Although, anyway, the question has been answered and in various ways, so that's not a problem. — Alexander Kulyakhtin, Jul 10 '12 at 15:25
I dont know whats wrong with the question. But anyways you guys have saved my time & thanks for all the answers. Thanks Alex for the solution. It worked!! — vijaykumarg, Jul 10 '12 at 15:43

score 1 · Accepted Answer · answered Jul 10 '12 at 11:27

1

What if you subclass Application class and call the activity you need from your Application's onCreate() ? And in the manifest you remove that intent.MAIN.

answered Jul 10 '12 at 11:27

Alexander Kulyakhtin

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Thanks for that. will implement it. – vijaykumarg Jul 10 '12 at 12:42
I have subclassed the Application & added it under the application tag in manifest. As suggested I removed the Intent-Filter for the Login Activity. Now the Manifest file does not contain Intent.Main anymore. Application is successfully installed, but it is not showing in the list. – vijaykumarg Jul 10 '12 at 23:42

score 1 · Answer 2 · answered Jul 10 '12 at 11:32

1

I don't think you can set the main activity programmatically, but you can set a boolean in your sharedPreferences. If this boolean is true, then you call your HomeActivity, and finish your LoginActivity.

Hope this helps

answered Jul 10 '12 at 11:32

AMerle

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score 0 · Answer 3 · answered Jul 10 '12 at 11:27

0

I would, from the login screen simply call the home screen. Or from the home screen, if the login details are not saved/ valid, then show the login screen.

Basically, it is not necessary or a good programming practice to do what you are asking.

answered Jul 10 '12 at 11:27

Will Richardson

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score 0 · Answer 4 · answered Jul 10 '12 at 11:28

When you have successfully logged in, call finish(); in the main activity which will remove it from the stack. Then in your HomeScreenActivity, override the back button to act as the home button:

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK) {
        moveTaskToBack(true);
        return true;
    }
    return super.onKeyDown(keyCode, event);
}

How to change the startup activity in android

4 Answers4