How to separate android device with screen size

Question

How to separate android device as per the screen size. I have a apk which should run from Android version 3, but I want to run that application only on tablet not for normal devices. I am not sure how to do this stuff. I think

<supports-screens 
    android:smallScreens="false"
    android:normalScreens="false"
    android:largeScreens="true"
    android:xlargeScreens="true" />

This code will help to do my need. But is there any other way to restrict the device when install from google play.

Answer 1

Very simple on your splash page or first page check device screen size-

 DisplayMetrics metrics = new DisplayMetrics();
    Display mDisplay = MainActivity.this.getWindowManager()
      .getDefaultDisplay();
    getWindowManager().getDefaultDisplay().getMetrics(metrics);
    float screenDensity = metrics.density;
    float screenDensityDPI = metrics.densityDpi;
    int width = mDisplay.getWidth();
    int Height = mDisplay.getHeight();

    Log.e("Density:", String.valueOf(screenDensity + "---"
      + screenDensityDPI));

And if it is 1280*720 proceed else so a notification this app work only on Tablets..

Enjoy:)

Reference code-

Answer 2

You are developing native or phonegap application?If it is phonegap app, you can use media queries to restrict the screen sizes.

Answer 3

Yes it is possible You may do like this :

Designing an android tablet-only app

Hope it helps :)

Answer 4

Try using this

DisplayMetrics metrics = new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(metrics);

    int widthInPixels = metrics.widthPixels;
    int heightInPixels = metrics.heightPixels;

    if (widthInPixels > 600 || heightInPixels > 600) {
        // This is a tablet dont run
    }

OR

if(tabletSize() > 6)
        Log.d("Testing", "Is Tablet ");
    else
        Log.d("Testing", "Not a Tablet ");

public double tabletSize() {

    double size = 0;
    try {
        // Compute screen size
        DisplayMetrics dm = getApplicationContext().getResources().getDisplayMetrics();
        float screenWidth = dm.widthPixels / dm.xdpi;
        float screenHeight = dm.heightPixels / dm.ydpi;
        size = Math.sqrt(Math.pow(screenWidth, 2) +
        Math.pow(screenHeight, 2));
    } catch (Exception e) {
        Log.e("Testing", "Exception " + e);
    }
    return size;
}

This will give you the size of the device in inch's so you can restrict it to a particular screen size (Normally a table is > 6)