Eclipse，創建Android項目，不會導入javax.swing

Question

我通常使用eclipse或NetBeans創建android應用程序，但是當我嘗試在按鈕上按下時創建消息框時，Eclipse在此情況下不會導入javax.swing

activity_main.xml中：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    tools:context=".MainActivity" > 

    <Button 
     android:id="@+id/button1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignParentTop="true" 
     android:layout_centerHorizontal="true" 
     android:layout_marginTop="136dp" 
     android:text="Button" /> 

</RelativeLayout> 

MainActivity.java：

package com.example.understanding; 

import android.os.Bundle; 
import android.app.Activity; 
import javax.swing; 
import android.view.Menu; 
import android.view.View; 

public class MainActivity extends Activity { 



     private void button1_ButtonActionPerformed(View v) { 
      JOptionPane.showMessageDialog(null, "Enter Account Details"); 
     } 

    @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.main, menu); 
     return true; 
    } 

} 

Answer 1

javax.swing不會在Android和is not part of the Android SDK存在。