适配器模式

直接上代码：对象适配器和类适配器

package com.jk.st.adapter;

import com.jk.st.base.Bird;

public class BirdAdapter_ob extends Bird implements ISay {

	String name;
	
	public BirdAdapter_ob(String name) {
		super(name);
		this.name = name;
	}

	@Override
	public void Say() {
		if(name.toString().equals("Chicken")){
			System.out.println("Chicken voice is jiji");
		}else if(name.toString().equals("Eagle")){
			System.out.println("Eagle voice is hoo");
		}else{
			System.out.println("Other Bird voice");
		}
	}

}


package com.jk.st.adapter;

import com.jk.st.base.Bird;

public class BirdAdapter implements ISay {

	Bird bird;
	
	public BirdAdapter(Bird _bird){
		bird = _bird;
	}
	
	@Override
	public void Say() {
		if(bird.toString().equals("Chicken")){
			System.out.println("Chicken voice is jiji");
		}else if(bird.toString().equals("Eagle")){
			System.out.println("Eagle voice is hoo");
		}else{
			System.out.println("Other Bird voice");
		}
	}
	
}


package com.jk.st.adapter;

public interface ISay {
	void Say();
}

package com.jk.st.base;

public abstract class Bird {
	private String name;
	
	public Bird(String name){
		this.name = name;
	}
	void Sleep(){
		System.out.println("Bird need sleep!");
	}
	
	public String toString(){
		
		return name;
	}
}

package com.jk.st.base;

public class Chicken extends Bird {
	
	
	public Chicken(String name){
		super(name);
	}
}

package com.jk.st.base;

public class Eagle extends Bird {

	public Eagle(String name) {
		super(name);
		// TODO Auto-generated constructor stub
	}

}

package com.jk.st;

import com.jk.st.adapter.BirdAdapter;
import com.jk.st.adapter.BirdAdapter_ob;
import com.jk.st.base.Bird;
import com.jk.st.base.Chicken;
import com.jk.st.base.Eagle;

public class Client {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		//对象适配器
		Bird b = new Chicken("Chicken");
		//System.out.println(b.toString());
		BirdAdapter ba = new BirdAdapter(b);
		ba.Say();
		Bird b2 = new Eagle("Eagle");
		ba = new BirdAdapter(b2);
		ba.Say();
		
		//类适配器
		BirdAdapter_ob bb = new BirdAdapter_ob("Chicken");
		bb.Say();
		bb = new BirdAdapter_ob("Eagle");
		bb.Say();
	}

}

下面代码时对ArrayAdapter的测试

package com.example.adaptertest01;

import java.util.ArrayList;

import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.widget.ListView;
import android.widget.TextView;

public class MainActivity extends Activity {

	private static final String TAG = "MainActivity";
	ListView lv;
	TextView atv;
	String[] arr={"AAA","BBB","CCC","DDD"};
	ArrayList<String> al = new ArrayList<String>();
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		lv = (ListView) findViewById(R.id.lv);
		atv = new TextView(this);
		atv.setText("Java");
		for(String str : arr){
			al.add(str);
		}
		al.add(atv.getText().toString());
		MyArrayAdapter mad = new MyArrayAdapter(this, android.R.layout.simple_list_item_1, al);
		Log.i(TAG,atv.getText().toString());
		//mad.clear();
		lv.setAdapter(mad);
		
	}


}


package com.example.adaptertest01;

import java.util.List;

import android.content.Context;
import android.widget.ArrayAdapter;
import android.widget.TextView;

public class MyArrayAdapter extends ArrayAdapter<String> {

	
	public MyArrayAdapter(Context context, int textViewResourceId) {
		super(context, textViewResourceId);
		// TODO Auto-generated constructor stub
		
	}

	public MyArrayAdapter(Context context, int resource,
			int textViewResourceId, List<String> objects) {
		super(context, resource, textViewResourceId, objects);
		// TODO Auto-generated constructor stub
	}

	public MyArrayAdapter(Context context, int resource,
			int textViewResourceId, String[] objects) {
		super(context, resource, textViewResourceId, objects);
		// TODO Auto-generated constructor stub
	}

	public MyArrayAdapter(Context context, int resource, int textViewResourceId) {
		super(context, resource, textViewResourceId);
		// TODO Auto-generated constructor stub
	}

	public MyArrayAdapter(Context context, int textViewResourceId,
			List<String> objects) {
		super(context, textViewResourceId, objects);
		// TODO Auto-generated constructor stub
	}

	public MyArrayAdapter(Context context, int textViewResourceId,
			String[] objects) {
		super(context, textViewResourceId, objects);
		// TODO Auto-generated constructor stub
	}

	@Override
	public String toString() {
		// TODO Auto-generated method stub
		return super.toString();
	}


	
}

<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" >


    <ListView
        android:id= "@+id/lv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:text="@string/hello_world" 
        android:textSize="30sp"/>
</RelativeLayout>