使用android快速開發框架afinal 開發android應用程序

首先介紹下afinal開發框架：

1、afinal是android中一個設計小巧的android應用開發框架

2、裏面包含了一個orm框架，無需配置任何文件可以對android的sqlite進行增刪改查操作。

3、裏面包含了一個ioc框架，自動綁定android佈局文件和代碼的控件，同時支持對事件的綁定功能

4、裏面包含了一個輕量級的http框架，對http請求只要一行代碼就可以完成。

afinal源碼地址 http://code.google.com/p/afinal/

這邊文章主要介紹了afinal的ioc和orm功能：

我們要實現的功能很簡單，我們可以添加數據到數據庫sqlite，然後從數據庫中查詢所有的數據到listview上顯示，可以再listview修改和刪除數據。完成基本的增刪改查功能。

廢話少說，我們首先來建立一個mode類，很簡單，就三個屬性，代碼如下：

package com.yangfuhai.afinal;

import net.tsz.afinal.annotation.sqlite.Id;

public class User {

    @Id(column="myId")
    private int userId;

    private String name;
    private String email;


    //getter setter ...


}

package com.yangfuhai.afinal;

import net.tsz.afinal.annotation.sqlite.Id;

public class User {

	@Id(column="myId")
	private int userId;
	
	private String name;
	private String email;
	
	
	//getter setter ...
	
	
}

注意：當你的對象中有id 或者 _id 這個屬性，可以不用配置@Id(column="myId");

接下來，我們看一下activity的代碼：

package com.yangfuhai.afinal;

import java.util.ArrayList;
import java.util.List;

import net.tsz.afinal.FinaActivity;
import net.tsz.afinal.FinalDb;
import net.tsz.afinal.annotation.view.ViewInject;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

/**
 * @title 這是 afinal demo
 * @description 描述
 * @company 探索者網絡工作室(www.tsz.net)
 * @author michael Young (www.YangFuhai.com)
 * @version 1.0
 * @created 2012-10-17
 */
public class AfinalDemoActivity extends FinaActivity {

    @ViewInject(id=R.id.btn_add,click="btnClick") Button BtnAdd;
    @ViewInject(id=R.id.btn_refresh,click="btnClick") Button BtnRefresh;

    @ViewInject(id=R.id.listView,itemClick="itemClick") ListView listView;

    @ViewInject(id=R.id.edit_name) EditText edit_name;
    @ViewInject(id=R.id.edit_email) EditText edit_email;

    List<User> mListViewData = new ArrayList<User>();

    FinalDb db;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        db = FinalDb.creat(this);
        listView.setAdapter(mListAdapter);
    }

    public void btnClick(View v){
        if(v == BtnAdd){
            String name = edit_name.getText().toString();
            String email = edit_email.getText().toString();

            if(!TextUtils.isEmpty(name) && !TextUtils.isEmpty(email)){
                User user = new User();
                user.setEmail(email);
                user.setName(name);

                if(v.getTag()!=null){
                    int id = Integer.valueOf(v.getTag().toString());
                    user.setUserId(id);
                    db.update(user);
                    showToast("更新成功");

                }else{
                    db.save(user);
                    showToast("添加成功");
                }

                edit_name.setText("");
                edit_email.setText("");
                BtnAdd.setTag(null);
                BtnAdd.setText("添加數據");

            }
        }else if(v == BtnRefresh){
            mListViewData.clear();
            mListViewData.addAll(db.findAll(User.class));
            mListAdapter.notifyDataSetChanged();
        }
    }


    private View.OnClickListener itemButtonClick = new View.OnClickListener() {
        public void onClick(View v) {
            Object obj = v.getTag();
            if(obj instanceof Integer){
                int positon = Integer.valueOf(obj.toString());
                User user = mListViewData.get(positon);
                if(v.getId() == R.id.item_btn_del){ //listview的刪除按鈕

//                  db.deleteById(User.class, user.getUserId());//也可以用這種方式刪除
                    db.deleteById(user);

                    showToast("刪除成功");
                    BtnRefresh.performClick();//刷新列表

                }else if(v.getId() == R.id.item_btn_update){//listview的更新按鈕
                    edit_email.setText(user.getEmail());
                    edit_name.setText(user.getName());

                    BtnAdd.setText("更新數據");
                    BtnAdd.setTag(user.getUserId());
                }
            }
        }
    };

    private void showToast(String strMsg){
        Toast.makeText(this, strMsg, 0).show();
    }



    private BaseAdapter mListAdapter = new BaseAdapter() {

        public View getView(int position, View convertView, ViewGroup parent) {
            View item = View.inflate(AfinalDemoActivity.this, R.layout.listitem, null);

            TextView tv_id = (TextView) item.findViewById(R.id.item_id);
            TextView tv_name = (TextView) item.findViewById(R.id.item_name);
            TextView tv_email = (TextView) item.findViewById(R.id.item_email);

            Button btn_del = (Button) item.findViewById(R.id.item_btn_del);
            Button btn_update = (Button) item.findViewById(R.id.item_btn_update);

            User user= mListViewData.get(position);
            tv_id.setText("id:"+user.getUserId()+"");
            tv_name.setText("名字："+user.getName());
            tv_email.setText("郵箱:"+user.getEmail());

            btn_del.setTag(position);
            btn_update.setTag(position);
            btn_del.setOnClickListener(itemButtonClick);
            btn_update.setOnClickListener(itemButtonClick);

            return item;
        }

        public long getItemId(int position) {
            return position;
        }

        public Object getItem(int position) {
            return mListViewData.get(position);
        }

        public int getCount() {
            return mListViewData.size();
        }
    };



}

package com.yangfuhai.afinal;

import java.util.ArrayList;
import java.util.List;

import net.tsz.afinal.FinaActivity;
import net.tsz.afinal.FinalDb;
import net.tsz.afinal.annotation.view.ViewInject;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

/**
 * @title 這是 afinal demo
 * @description 描述
 * @company 探索者網絡工作室(www.tsz.net)
 * @author michael Young (www.YangFuhai.com)
 * @version 1.0
 * @created 2012-10-17
 */
public class AfinalDemoActivity extends FinaActivity {
	
	@ViewInject(id=R.id.btn_add,click="btnClick") Button BtnAdd;
	@ViewInject(id=R.id.btn_refresh,click="btnClick") Button BtnRefresh;
	
	@ViewInject(id=R.id.listView,itemClick="itemClick") ListView listView;
	
	@ViewInject(id=R.id.edit_name) EditText edit_name;
	@ViewInject(id=R.id.edit_email) EditText edit_email;
	
	List<User> mListViewData = new ArrayList<User>();
	
	FinalDb db;
	
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        db = FinalDb.creat(this);
        listView.setAdapter(mListAdapter);
    }
    
    public void btnClick(View v){
    	if(v == BtnAdd){
	    	String name = edit_name.getText().toString();
	    	String email = edit_email.getText().toString();
	    	
	    	if(!TextUtils.isEmpty(name) && !TextUtils.isEmpty(email)){
	    		User user = new User();
	    		user.setEmail(email);
	    		user.setName(name);
	    		
	    		if(v.getTag()!=null){
	    			int id = Integer.valueOf(v.getTag().toString());
	    			user.setUserId(id);
	    			db.update(user);
	    			showToast("更新成功");
	    			
	    		}else{
	    			db.save(user);
		    		showToast("添加成功");
	    		}
	    		
	    		edit_name.setText("");
	    		edit_email.setText("");
	    		BtnAdd.setTag(null);
	    		BtnAdd.setText("添加數據");
	    		
	    	}
    	}else if(v == BtnRefresh){
    		mListViewData.clear();
    		mListViewData.addAll(db.findAll(User.class));
    		mListAdapter.notifyDataSetChanged();
    	}
    }
    
    
    private View.OnClickListener itemButtonClick = new View.OnClickListener() {
		public void onClick(View v) {
			Object obj = v.getTag();
			if(obj instanceof Integer){
				int positon = Integer.valueOf(obj.toString());
				User user = mListViewData.get(positon);
				if(v.getId() == R.id.item_btn_del){ //listview的刪除按鈕
					
//					db.deleteById(User.class, user.getUserId());//也可以用這種方式刪除
					db.deleteById(user);
					
					showToast("刪除成功");
					BtnRefresh.performClick();//刷新列表
					
				}else if(v.getId() == R.id.item_btn_update){//listview的更新按鈕
					edit_email.setText(user.getEmail());
					edit_name.setText(user.getName());
					
					BtnAdd.setText("更新數據");
					BtnAdd.setTag(user.getUserId());
				}
			}
		}
	};
    
	private void showToast(String strMsg){
		Toast.makeText(this, strMsg, 0).show();
	}
	
	
    
    private BaseAdapter mListAdapter = new BaseAdapter() {
		
		public View getView(int position, View convertView, ViewGroup parent) {
			View item = View.inflate(AfinalDemoActivity.this, R.layout.listitem, null);
			
			TextView tv_id = (TextView) item.findViewById(R.id.item_id);
			TextView tv_name = (TextView) item.findViewById(R.id.item_name);
			TextView tv_email = (TextView) item.findViewById(R.id.item_email);
			
			Button btn_del = (Button) item.findViewById(R.id.item_btn_del);
			Button btn_update = (Button) item.findViewById(R.id.item_btn_update);
			
			User user= mListViewData.get(position);
			tv_id.setText("id:"+user.getUserId()+"");
			tv_name.setText("名字："+user.getName());
			tv_email.setText("郵箱:"+user.getEmail());
			
			btn_del.setTag(position);
			btn_update.setTag(position);
			btn_del.setOnClickListener(itemButtonClick);
			btn_update.setOnClickListener(itemButtonClick);
			
			return item;
		}
		
		public long getItemId(int position) {
			return position;
		}
		
		public Object getItem(int position) {
			return mListViewData.get(position);
		}
		
		public int getCount() {
			return mListViewData.size();
		}
	};
    
    
    
}

在上面的列子中，我們不用findviewByid，也不需要對view進行setOnClickListener操作，完全註解配置。使得代碼更加簡潔。

在數據庫操作中，我們只需要實例化FinalDb對象，通過FinalDB可以對user進行增加、刪除、修改等操作。

有圖有真相：

開發包下載：
http://download.csdn.net/detail/qq331710168/5175452

轉載請註明出處。