android系列学习：tab切换，fragment中嵌套listview，listview自定义item，优化以及onclick

最近做的项目实现的功能，tab切换，fragment中嵌套listview，listview自定义item，ViewHolder优化listview以及item中控件的onclick写法

1.先看效果图

这里的数据和图片我是写死的，可根据需要自己修改。下面的代码只给出电影模块，其他的类似。

2.movie_item.xml

3.movie_list_fragment

4.MovieAdapter(Movie需要final才能被内部类使用)

package com.movie;

import java.util.List;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.example.itingshuo.R;

public class MovieAdapter extends ArrayAdapter {
    private int resource;
	public MovieAdapter(Context context, int resource, List objects) {
		super(context, resource, objects);
		// TODO Auto-generated constructor stub
		this.resource = resource;//resource为listView的每个子项的布局id
		
	}
	//getView为listView的每个子项的布局设置内容
	//convertView用于将之前加载好的布局进行缓存
	//设置一个viewHolder对控件进行缓存
	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		// TODO Auto-generated method stub
		//return super.getView(position, convertView, parent);
		
//		Fruit fruit = getItem(position);//获得实例
//		View view;
//		if(convertView==null){
//		 view = LayoutInflater.from(getContext()).inflate(resource, null);
//		}else {
//			view = convertView;
//		}
//		ImageView fruitImage =  (ImageView) view.findViewById(R.id.fruit_image);
//		TextView fruitName = (TextView) view.findViewById(R.id.fruit_name);
//		fruitImage.setImageResource(fruit.getImageId());
//		fruitName.setText(fruit.getName());
//		return view;
		
		final Movie movie = getItem(position);//获得实例
		View view;
		ViewHolder viewHolder;
		if(convertView==null){
		 view = LayoutInflater.from(getContext()).inflate(resource, null);
		 viewHolder = new ViewHolder();
		 viewHolder.movieImage= (ImageView) view.findViewById(R.id.img_movie);
		 viewHolder.movieTitle =(TextView) view.findViewById(R.id.tv_title);
		 viewHolder.movieContent =(TextView) view.findViewById(R.id.tv_content);
		 viewHolder.movieTime = (TextView) view.findViewById(R.id.tv_time);
	     viewHolder.movieBeginStudy = (ImageView) view.findViewById(R.id.img_movie_beginStudy);
		 view.setTag(viewHolder);
		}else {
			view = convertView;
			viewHolder = (ViewHolder) view.getTag();
		}
		viewHolder.movieImage.setImageResource(movie.getImgSrc());
		viewHolder.movieTitle.setText(movie.getTitle());
		viewHolder.movieContent.setText(movie.getContent());
		viewHolder.movieTime.setText(movie.getTime());
	
		//进入学习监听器
				viewHolder.movieBeginStudy.setOnClickListener(new View.OnClickListener() {
					
					@Override
					public void onClick(View v) {
						// TODO Auto-generated method stub
						Toast.makeText(getContext(), movie.getTitle()+"begin study", Toast.LENGTH_SHORT).show();
					}
				});
		return view;
		
	}
class ViewHolder{
	TextView movieContent;
	ImageView movieImage;
	TextView movieTitle;
	TextView movieTime;
	ImageView movieBeginStudy;
}
}

5.MovieListFragment

package com.example.fragment;

import java.util.ArrayList;
import java.util.List;
import com.example.itingshuo.R;
import com.movie.Movie;
import com.movie.MovieAdapter;
import android.support.v4.app.Fragment;//不知为什么要加这个？
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;

public class MovieListFragment extends Fragment {
	  private MovieAdapter adapter = null;  
      private List movieList;
      private ListView movieListView;
	    @Override  
	    public void onCreate(Bundle savedInstanceState) {  
	        super.onCreate(savedInstanceState);  
	       
	      
	    }  
	  
	    @Override  
	    public View onCreateView(LayoutInflater inflater, ViewGroup container,  
	            Bundle savedInstanceState) {  
	    	 Classinit();
	        View v = inflater.inflate(R.layout.movie_list_fragment,null);  
	        movieListView = (ListView) v.findViewById(R.id.lv_movie);
	        adapter = new MovieAdapter(getActivity(), R.layout.movie_item, movieList);  
	        movieListView.setAdapter(adapter);
	        return v;  
	    }  
	      
	    public void Classinit(){
	    	movieList= new ArrayList();
	    	Movie movie1 = new Movie();
	    	movie1.setTitle("movie1");
	    	movie1.setContent("movieContent1");
	    	movie1.setTime("07:30");
	    	movie1.setImgSrc(R.drawable.image_arrrow);
	    	movieList.add(movie1);
	    	Movie movie2 = new Movie();
	    	movie2.setTitle("movie2");
	    	movie2.setContent("movieContent2");
	    	movie2.setTime("07:30");
	    	movie2.setImgSrc(R.drawable.image_arrrow);
	    	movieList.add(movie2);
	    	Movie movie3 = new Movie();
	    	movie3.setTitle("movie3");
	    	movie3.setContent("movieContent3");
	    	movie3.setTime("07:30");
	    	movie3.setImgSrc(R.drawable.image_arrrow);
	    	movieList.add(movie3);
	    	Movie movie4 = new Movie();
	    	movie4.setTitle("movie4");
	    	movie4.setContent("movieContent4");
	    	movie4.setTime("07:30");
	    	movie4.setImgSrc(R.drawable.image_arrrow);
	    	movieList.add(movie4);
	    	Movie movie5 = new Movie();
	    	movie5.setTitle("movie5");
	    	movie5.setContent("movieContent5");
	    	movie5.setTime("07:30");
	    	movie5.setImgSrc(R.drawable.image_arrrow);
	    	movieList.add(movie5);
	    	Movie movie6 = new Movie();
	    	movie6.setTitle("movie6");
	    	movie6.setContent("movieContent6");
	    	movie6.setTime("07:30");
	    	movie6.setImgSrc(R.drawable.image_arrrow);
	    	movieList.add(movie6);
	    	Movie movie7 = new Movie();
	    	movie7.setTitle("movie7");
	    	movie7.setContent("movieContent7");
	    	movie7.setTime("07:30");
	    	movie7.setImgSrc(R.drawable.image_arrrow);
	    	movieList.add(movie7);
	    }
}

5.MainActivity(这里实现了tab+fragment的效果)

package com.example.itingshuo;

import java.util.ArrayList;

import android.app.ListFragment;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.KeyEvent;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.example.fragment.MovieEmotionFragment;
import com.example.fragment.MovieListFragment;
import com.example.fragment.SpeakClassFragment;
import com.example.fragment.ToneListFragment;
import com.nineoldandroids.view.ViewPropertyAnimator;

public class MainActivity extends FragmentActivity {

	private ArrayList fragments;

	private ViewPager viewPager;

	private ImageView tab_speak;

	private ImageView tab_movie;
	
	private ImageView tab_tone;

	private int line_width;

	private View line;

	

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		this.requestWindowFeature(Window.FEATURE_NO_TITLE);
		setContentView(R.layout.activity_main);

		tab_speak = (ImageView) findViewById(R.id.tab_speak);
		tab_movie = (ImageView) findViewById(R.id.tab_movie);
		tab_tone = (ImageView) findViewById(R.id.tab_tone);
		line = findViewById(R.id.line);
		
		changeState(0);
		// 初始化TextView动画
//		ViewPropertyAnimator.animate(tab_movie).scaleX(1.2f).setDuration(0);
//		ViewPropertyAnimator.animate(tab_movie).scaleY(1.2f).setDuration(0);
       
		fragments = new ArrayList();
		//fragments.add(new MovieFragment());//电影情感选择，不是列表
		fragments.add(new MovieListFragment());//电影列表选择
		fragments.add(new SpeakClassFragment());//语调选择
		fragments.add(new ToneListFragment());//文章选择
		line_width = getWindowManager().getDefaultDisplay().getWidth()
				/ fragments.size();
		line.getLayoutParams().width = line_width;
		line.requestLayout();

		viewPager = (ViewPager) findViewById(R.id.viewPager);
		viewPager.setAdapter(new FragmentStatePagerAdapter(
				getSupportFragmentManager()) {

			@Override
			public int getCount() {
				return fragments.size();
			}

			@Override
			public Fragment getItem(int arg0) {
				return fragments.get(arg0);
			}
		});

		viewPager.setOnPageChangeListener(new OnPageChangeListener() {

			@Override
			public void onPageSelected(int arg0) {
				changeState(arg0);
			}

			@Override
			public void onPageScrolled(int arg0, float arg1, int arg2) {
				float tagerX = arg0 * line_width + arg2 / fragments.size();
				ViewPropertyAnimator.animate(line).translationX(tagerX)
						.setDuration(0);
			}

			@Override
			public void onPageScrollStateChanged(int arg0) {

			}
		});

		tab_speak.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View arg0) {
				viewPager.setCurrentItem(1);
				
			}
		});
		tab_tone.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View arg0) {
				viewPager.setCurrentItem(2);
				
			}
		});

		tab_movie.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View arg0) {
				viewPager.setCurrentItem(0);
			}
		});
	}

	/* 根据传入的值来改变状态 */
	private void changeState(int arg0) {
		if (arg0 == 0) {
			tab_movie.setImageDrawable(getResources().getDrawable(R.drawable.tab_movie_click));
			tab_speak.setImageDrawable(getResources().getDrawable(R.drawable.tab_speak));
			tab_tone.setImageDrawable(getResources().getDrawable(R.drawable.tab_tone));
			ViewPropertyAnimator.animate(tab_movie).scaleX(1.2f).setDuration(200);
			ViewPropertyAnimator.animate(tab_movie).scaleY(1.2f).setDuration(200);
			ViewPropertyAnimator.animate(tab_speak).scaleX(1.0f).setDuration(200);
			ViewPropertyAnimator.animate(tab_speak).scaleY(1.0f).setDuration(200);
			ViewPropertyAnimator.animate(tab_tone).scaleX(1.0f).setDuration(200);
	        ViewPropertyAnimator.animate(tab_tone).scaleY(1.0f).setDuration(200);

		} else if(arg0 == 1){
			tab_speak.setImageDrawable(getResources().getDrawable(R.drawable.tab_speak_click));
			tab_movie.setImageDrawable(getResources().getDrawable(R.drawable.tab_movie));
			tab_tone.setImageDrawable(getResources().getDrawable(R.drawable.tab_tone));
			ViewPropertyAnimator.animate(tab_tone).scaleX(1.0f).setDuration(200);
			ViewPropertyAnimator.animate(tab_tone).scaleY(1.0f).setDuration(200);
			ViewPropertyAnimator.animate(tab_movie).scaleX(1.0f).setDuration(200);
	        ViewPropertyAnimator.animate(tab_movie).scaleY(1.0f).setDuration(200);
			ViewPropertyAnimator.animate(tab_speak).scaleX(1.2f).setDuration(200);
			ViewPropertyAnimator.animate(tab_speak).scaleY(1.2f).setDuration(200);
		}else{
			tab_tone.setImageResource(R.drawable.tab_tone_click);
			tab_movie.setImageResource(R.drawable.tab_movie);
			tab_speak.setImageResource(R.drawable.tab_speak);
			ViewPropertyAnimator.animate(tab_movie).scaleX(1.0f).setDuration(200);
			ViewPropertyAnimator.animate(tab_movie).scaleY(1.0f).setDuration(200);
			ViewPropertyAnimator.animate(tab_speak).scaleX(1.0f).setDuration(200);
			ViewPropertyAnimator.animate(tab_speak).scaleY(1.0f).setDuration(200);
			ViewPropertyAnimator.animate(tab_tone).scaleX(1.2f).setDuration(200);
			ViewPropertyAnimator.animate(tab_tone).scaleY(1.2f).setDuration(200);
		}
	}

	
}

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