简单调用支付宝付款功能

//扫一扫
alipayqr://platformapi/startapp?saId=10000007
//付款
alipayqr://platformapi/startapp?saId=20000056
//转账 
alipays://platformapi/startapp?appId=20000221
//转账
alipayqr://platformapi/startapp?saId=20000116
//收款 
alipays://platformapi/startapp?appId=20000123



解析收款二维码得到
payUrl = "HTTPS://QR.ALIPAY.COM/FKX08699IHC7N1YQRPBR5D"

public class MainActivity extends AppCompatActivity   {
  TextView alipay;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

    alipay.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

    try {
                Intent intent = new Intent();
                intent.setAction("android.intent.action.VIEW");
                //实现payUrl
                String payUrl = "HTTPS://QR.ALIPAY.COM/FKX08699IHC7N1YQRPBR5D";
                intent.setData(Uri.parse("alipayqr://platformapi/startapp?saId=10000007&clientVersion=3.7.0.0718&qrcode=" + payUrl));
                startActivity(intent)  
            }
                  catch (Exception e) {
                
                    }   
            }
        });
  }
}