SplashScreenWithCompat.java

package com.downloader.videodownloader;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Toast;

public class SplashScreen extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (hasPermission()){
            startMainActivity();
        }else{
            getPermissions();
        }
    }

    private void getPermissions() {
        ActivityCompat.requestPermissions(this,new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},100);
    }

    private boolean hasPermission() {
        return ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)== PackageManager.PERMISSION_GRANTED;
    }
    private boolean isPermissionGranted = false;

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode==100){
            if (grantResults.length>0 && grantResults[0]==PackageManager.PERMISSION_GRANTED){
                isPermissionGranted=true;
            }else{
                Toast.makeText(this,"Requires storage permission to continue.",Toast.LENGTH_SHORT).show();
                System.exit(0);
            }
        }
    }

    @Override
    protected void onResume() {
        super.onResume();
        if (isPermissionGranted){
            startMainActivity();
        }
    }
    private void startMainActivity(){
        Intent intent=new Intent(this,MainActivity.class);
        startActivity(intent);
    }
}