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I want to change my app's background randomly. It's supposed to have a random image from its own folder as background. It works perfectly with some devices but with some of them doesn't. I wonder what could cause this inconsistency. Here is my random background generator class:

public class arkaplanGenerator {
public static int arkaplan(){
    int sonucArkaplan = 0;
    Random r = new Random();
    int sayi = r.nextInt(11);
    switch (sayi){
        case 0:
            sonucArkaplan = R.drawable.bavaria;
            break;
        case 1:
            sonucArkaplan = R.drawable.gorges;
            break;
        case 2:
            sonucArkaplan = R.drawable.more;
            break;
        case 3:
            sonucArkaplan = R.drawable.mountains;
            break;
        case 4:
            sonucArkaplan = R.drawable.pisa;
            break;
        case 5:
            sonucArkaplan = R.drawable.sea;
            break;
        case 6:
            sonucArkaplan = R.drawable.sunset;
            break;
        case 7:
            sonucArkaplan = R.drawable.sunset2;
            break;
        case 8:
            sonucArkaplan = R.drawable.wai;
            break;
        case 9:
            sonucArkaplan = R.drawable.water;
            break;
        case 10:
            sonucArkaplan = R.drawable.waterfall;
            break;
    }
    return sonucArkaplan;
}

And here is how i use it in my main activity:

 LinearLayout linearLayout = (LinearLayout)findViewById(R.id.activity_main);
 linearLayout.setBackground(getResources().getDrawable(arkaplanGenerator.arkaplan()));

Those images are in drawable folder.Thanks in advance.

Erayzer
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    It's almost impossible to help you without information on which devices you have problem and which exactly problems you have (stack trace?). – Divers Feb 01 '17 at 13:48

1 Answers1

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The method getDrawable from the Resources class has been deprecated. You should use the one from ContextCompat:

linearLayout.setBackground(ContextCompat.getDrawable(getApplicationContext(),arkaplanGenerator.arkaplan()));
Erayzer
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Rosário Pereira Fernandes
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