Java tutorial
//package com.java2s; import android.content.Context; import android.support.annotation.NonNull; import android.util.DisplayMetrics; import android.view.Display; import android.view.WindowManager; public class Main { public static int getScreenWidth(@NonNull Context context) { Display display = ((WindowManager) context.getSystemService("window")).getDefaultDisplay(); DisplayMetrics metrics = new DisplayMetrics(); display.getMetrics(metrics); return metrics.widthPixels; } }