package com.baidu.jnitest;

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

import android.widget.TextView;

public class JNIActivity extends Activity {

    static{

        System.loadLibrary("JNITest");

    }

        public native String stringFromJNI();

        public native double add(double a, double b);

        public native double sub(double a, double b);

        public native double multi(double a, double b);

        public native double div(double a, double b);

    TextView textview1;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        textview1 = (TextView) this.findViewById(R.id.textview1);

        textview1.setText("加法结果"+stringFromJNI()+add(1.2,2.3));

    }

}