NDK例子之 斐波那契算法

package com.linc.Fibonacci; import com.linc.Lib.FibLib; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; public class Fibonacci extends Activity implements OnClickListener { TextView textResult; Button buttonGo; EditText editInput; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // Find UI views editInput = (EditText) findViewById(R.id.input); textResult = (TextView) findViewById(R.id.Result); buttonGo = (Button) findViewById(R.id.compute); buttonGo.setOnClickListener(this); } @Override public void onClick(View view) { // TODO Auto-generated method stub int input = Integer.parseInt(editInput.getText().toString()); //注释一 long start, stop; long result; String out = ""; // Dalvik - Recursive // start = System.currentTimeMillis(); //注释二 // result = FibLib.fibJ(input); //注释三 // stop = System.currentTimeMillis(); //注释四 // out += String.format("Dalvik recur sive: %d (%d msec)", result, // stop - start); // Dalvik – Iterative start = System.currentTimeMillis(); result = FibLib.fibJI(input); //注释五 stop = System.currentTimeMillis(); out += String.format("\nDalvik iterative: %d (%d msec)", result, stop - start); // // Native - Recursive // start = System.currentTimeMillis(); // result = FibLib.fibN(input); //注释六 // stop = System.currentTimeMillis(); // out += String.format("\nNative recursive: %d (%d msec)", result, // stop - start); // Native - Iterative start = System.currentTimeMillis(); result = FibLib.fibNI(input); //注释七 stop = System.currentTimeMillis(); out += String.format("\nNative iterative: %d (%d msec)", result, stop - start); textResult.setText("Result: "+out); //注释八 } }