首先我用java编写了small然后导出到.jar文件这里是Java代码
package de.vogella.eclipse.ide.first;
public class MyFirstClass {
/**
* @param args
*/
public static void main(String[] args) {
System.out.println("Hello Eclipse!");
}
}
然后转换为“myfile.jar”它的工作正常（“Hello Eclipse！”）我在 android 应用程序中调用“myfile.jar”文件但无法在 android 应用程序中获取“MyFirstClass”，Android 代码 main.java
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import de.vogella.eclipse.ide.first.*; // Here I imported jar file
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}