public class MyApp extends Application{
public static int displayWidth, displayHeight;
public static int INCH_8_WIDTH = 1200;
public static int INCH_97_WIDTH = 825;
public static int INCH_68_WIDTH = 1080;
public static int INCH_68_HEIGHT = 1440;
@Override
public void onCreate() {
super.onCreate();
SingletonSharedPreference.init(this);
ReaderDeviceInfo.init(this);
WindowManager wm = (WindowManager)getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
displayWidth = display.getWidth();
displayHeight = display.getHeight();
}
static public boolean is8Inch() {
return displayWidth == INCH_8_WIDTH;
}
static public boolean is97Inch() {
return displayWidth == INCH_97_WIDTH;
}
static public boolean is68Inch() {
return displayWidth == INCH_68_WIDTH;
}
}
```
# using device model
```
String model = Build.MODEL;
model = model.toLowerCase();
```