Question

i want to choose between two xml files when the application starts i.e in onCreate().

For example say i am reading the battery status when the app opens, if its less then some level i should display a warning message or the start activity of the app. Is this feasible???? If there is any way, can i get some help????

my code

isSDCard = android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);
        super.onCreate(savedInstanceState);

        if(isSDCard)
        {
            Intent intent = new Intent(Activity.this,SDcard.class);
            startActivity(intent);
            finish();
            //setContentView(R.layout.missing_sd);
        }
        else{

            //Intent intent = new Intent(this,ImageSelection.class);    
            //startActivity(intent);
        //  finish();
            setContentView(R.layout.image_menu);
        }
  }

my SDcard.class

public class SDcard extends Activity {

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.missing_sd);
      //  Button inserted_card = (Button) findViewById(R.id.button_insert);
       // inserted_card.setOnClickListener(new OnClickListener() {

            //public void onClick(View v) {
            //  Toast.makeText(getApplicationContext(), "Card Inserted!!!", Toast.LENGTH_SHORT).show();

            //}
        //});

    }
}

i commented onclick part to make sure it is not working!!!

Answer 1

Yes, it is possible, for example:

//in onCreate
if (somecondition) {
    setContentView(R.layout.first);
}
else {
    setContentView(R.layout.second);
}

But if you provide different functionality in such cases, wouldn’t it be better to start different activities based on the condition?

For example:

//in onCreate
if (somecondition) {
    Intent i = new Intent(this, FirstActivity.class);
    startActivity(i);
}
else {
    Intent i = new Intent(this, SecondActivity.class);
    startActivity(i);
}