我用ADT新建了一个工程,默认的有一个叫MainActivity.java的文档:
package com.example.m_note0305;
import android.support.v7.app.ActionBarActivity;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
public class MainActivity extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
}
@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;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
}
}
然后我用网上COPY的代码又新建了一个文档SlNotepad.java:
package com.example.m_note0305;//把SlNotepad类纳入到m_note0305包内
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import javax.swing.event.*;
import java.util.*;
import java.awt.datatransfer.*;
class text implements Serializable{
/**/
private static final long serialVersionUID = -5303411698842652024L;//序列化版本对象控制
String keyword;//密码
String textmain;//文本部分
}
public class SlNotepad extends JFrame implements ActionListener,ListSelectionListener{//公共类名必须和文件名一致
/**/
private static final long serialVersionUID = -1229804758759177927L;
//extends表示继承
MenuBar bar;//菜单栏
Menu file,edit,format,help;
MenuItem open,dsave,save,newwork,quit,about,fontchoose,colorchoose,backchoose,timeadd,keyopen,keysave,zcancel,copy,paste,cut,delete,selectall,search,autoline;
MenuShortcut opencut,dsavecut,savecut,newworkcut,quitcut,aboutcut,fontchoosecut,colorchoosecut,backchoosecut,timeaddcut,keyopencut,keysavecut,zcancelcut,copycut,pastecut,cutcut,deletecut,selectallcut,searchcut,autolinecut;
Toolkit tool=this.getToolkit();
Clipboard clip;//剪贴版
Image image=tool.getImage("data/icon.jpg");//框架图标
JTextArea textarea;//文本区域
//此处省略一万字
public static void main(String[] args){
SlNotepad SlNotepad=new SlNotepad("亮亮记事本1.0正式版");
SlNotepad.setVisible(true);//show();
}
}
程序跑起来的效果是,就仿佛后面的文档不存在一样。
MainActivity.java里面没有main函数啊,它是怎样开始执行的?
我不知道怎样把自定义的那个记事本类型用起来,求大神指点~~