Sample file to demonstatrate simple paypal integration

SimplePayPalIntegration.java

package com.paypal;

import java.math.BigDecimal;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;

import com.paypal.android.MEP.PayPal;
import com.paypal.android.MEP.PayPalPayment;

public class Paypal extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        
       // Intent i = new Intent(this, PaypalExpressCheckout.class);
        //this.startActivity(i);
        invokeSimplePayment();
    }
    
    
    //===============================================================
    private void invokeSimplePayment(){
    	
    	try{
    		
    		PayPalPayment newPayment = new PayPalPayment();
    		newPayment.setSubtotal(BigDecimal.valueOf(10));
    		newPayment.setCurrencyType("USD");
    		//.setCurrency("USD");
    		newPayment.setRecipient("[email protected]");
    		newPayment.setMerchantName("My Company");
    		
    		PayPal pp = PayPal.getInstance();
    		if(pp==null)
    			pp = PayPal.initWithAppID(this, "APP-80W284485P519543T", PayPal.ENV_SANDBOX);
    		
    		Intent paypalIntent = pp.checkout(newPayment, this);
    		this.startActivityForResult(paypalIntent, 1);
    		
    	}catch(Exception e){e.printStackTrace();}
    }
    
}