Mindustry/android/src/io/anuke/mindustry/AndroidLauncher.java

package io.anuke.mindustry;

import java.text.NumberFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

import com.badlogic.gdx.backends.android.AndroidApplication;
import com.badlogic.gdx.backends.android.AndroidApplicationConfiguration;

import android.annotation.SuppressLint;
import android.content.Intent;
import android.os.Bundle;
import android.util.DisplayMetrics;
import io.anuke.mindustry.io.Formatter;
import io.anuke.ucore.scene.ui.layout.Unit;

public class AndroidLauncher extends AndroidApplication{
	boolean doubleScaleTablets = false;

	@SuppressLint("SimpleDateFormat")
	@Override
	protected void onCreate(Bundle savedInstanceState){
		super.onCreate(savedInstanceState);
		AndroidApplicationConfiguration config = new AndroidApplicationConfiguration();
		config.useImmersiveMode = true;

		Mindustry.formatter = new Formatter(){
			@SuppressLint("SimpleDateFormat")
			SimpleDateFormat format = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm");

			@Override
			public String format(Date date){
				return format.format(date);
			}

			@Override
			public String format(int number){
				return NumberFormat.getIntegerInstance().format(number);
			}
		};
		
		Mindustry.donationsCallable = this::showDonations;

		if(doubleScaleTablets){
			DisplayMetrics metrics = new DisplayMetrics();
			getWindowManager().getDefaultDisplay().getMetrics(metrics);

			float yInches = metrics.heightPixels / metrics.ydpi;
			float xInches = metrics.widthPixels / metrics.xdpi;
			double diagonalInches = Math.sqrt(xInches * xInches + yInches * yInches);
			if(diagonalInches >= 6.5){
				// 6.5inch device or bigger
				Unit.dp.multiplier = 2f;
			}else{
				// smaller device
				Unit.dp.multiplier = 1f;
			}
		}

		//Mindustry.args.add("-debug");
		
		config.hideStatusBar = true;
		
		initialize(new Mindustry(), config);
	}
	
	void showDonations(){
		Intent intent = new Intent(this, DonationsActivity.class);
		startActivity(intent);
	}
}