CODEWITHSUNDEEP
javaandroid
Derek Slauson
Derek Slauson

Reputation: 11

How do I setContentView in a class that extends View? (Android, Java)

So I am making an android app where when you open the app, you start off in the main activity. Once you hit the play button, I made an onclick listener that sets the content view to another class that extends View. The game goes on in this class by drawing to a canvas. Once the user loses the game, I want it to reset the content view to my main activity. Is there any way to do this? Sorry if this is confusing, I am fairly new to java. Any help would be greatly appreciated. Thanks!

Upvotes: 1

Views: 439

Answers (2)

Francisco Romero
Francisco Romero

Reputation: 13199

If you want to send information to another class from MainActivity and after returns it initialized, you can use startActivityForResult(), like this:

startActivityForResult(new Intent("Example"), 1);

where you have to declare your intent "Example" in your Manifest file:

<activity
    android:name=".ExecuteExample" //Here the name of the Class in which you send the information
    android:label="Example" > 

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

So, when the user loses the game, you retrieve the new information again to the MainActivity with setResult function (from ExecuteExample):

setResult(RESULT_OK, example);

where example it's the name of the intent that you send now to MainActivity. How to set the information to this new Intent? Easy, just with .putExtra() function. Something like this:

example.putExtra("Score",0);
example.putExtra("Name","");

supossing that the values that you want to initialize are the Score and the Name of the user that played before.

Finally, you have to retrieve this information initialized from the MainActivity class creating a new method onActivityResult():

public void onActivityResult(int requestCode, int resultCode, Intent data)
{
   if (requestCode == 1)
   {
      if(resultCode == RESULT_OK) 
      {

         int score = data.getIntExtra("Score");
         String name = datos.getStringExtra("Name");
      }
   }
}

I expect it will helps to you!

Upvotes: 1

ASP
ASP

Reputation: 447

Are you trying to load activity? You can try with the code below: 

Intent intent = new Intent(this, MainActivity.class);

Upvotes: 0

Related Questions