android ListView+自定义标题栏

  1.简单的单行ListView。

代码很如下：

public class ListViewOne extends ListActivity{
	String [] str = new String [] {"C","Java","C++","PHP","Python","Perl","Rudy","JavaScript"};
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        ArrayAdapter adapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1,android.R.id.text1,str);
        this.setListAdapter(adapter);
    }
}

 

 2.复杂的双行ListView

代码如下：

public class ListViewTwo extends ListActivity{
	List> listdata;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        listdata = getData();
        SimpleAdapter adapter = new SimpleAdapter(this, listdata, android.R.layout.simple_list_item_2, new String[]{"name","address"}, new int[]{android.R.id.text1,android.R.id.text2});
        this.setListAdapter(adapter);
    }
    public List> getData(){
    	List> list = new ArrayList>();
    	Map map1 = new HashMap();
    	map1.put("name", "张三同学");
    	map1.put("address", "学生1");
    	
    	Map map2 = new HashMap();
    	map2.put("name", "李四同学");
    	map2.put("address", "学生2");
    	
    	Map map3 = new HashMap();
    	map3.put("name", "王五同学");
    	map3.put("address", "学生3");
    	
    	list.add(map1);
    	list.add(map2);
    	list.add(map3);
    	return list;
    }
}

 

3.下面是自定义布局的ListView，并加上了改变了标题栏的样式

 

代码是这样的：

1.布局文件：

2.ListView的布局：

3.Activity的代码：

public class MainActivity extends Activity {
	List> listdata;
	ListView listView;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        listView = (ListView) findViewById(R.id.mylistview);
        listView.setAdapter(new ImageAdapter(this));
        
        
        View view = this.findViewById(android.R.id.title);
        ((TextView)view).setTextColor(Color.YELLOW);              //设置标题栏的文字颜色
        
        
    }
    public List> getData(){
    	List> list = new ArrayList>();
    	Map map1 = new HashMap();
    	map1.put("name", "张三同学");
    	map1.put("address", "学生1");
    	
    	Map map2 = new HashMap();
    	map2.put("name", "李四同学");
    	map2.put("address", "学生2");
    	
    	Map map3 = new HashMap();
    	map3.put("name", "王五同学");
    	map3.put("address", "学生3");
    	
    	list.add(map1);
    	list.add(map2);
    	list.add(map3);
    	return list;
    }
    
    private class ImageAdapter extends BaseAdapter{
    	Context context;
    	
    	String [] str = new String[]{"第一张","第二张","第三张","第四张","第五张"};
    	String [] time = new String[]{"一分钟前","二分钟前","三分钟前","四分钟前","五分钟前"};
    	String [] content = new String[]{"心情愉快","心情郁闷","嘻嘻","哈哈","嘿嘿，你好啊，好看不啊"};
    	int [] imageid = new int[]{R.drawable.image1,R.drawable.image2,R.drawable.image3,R.drawable.image4,R.drawable.image5};
    	public ImageAdapter(Context context) {
    		this.context = context;
		}
    	
    	//返回图片的个数
		@Override
		public int getCount() {
			return str.length;
		}

		@Override
		public Object getItem(int position) {
			return str[position];
		}

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

		@Override
		public View getView(int position, View convertView, ViewGroup parent) {
			ViewHolder holder;
			if(convertView == null){
				//View的findViewById()方法也是比较耗时的，因此需要考虑中调用一次，之后用
				//View的getTag()来获取这个ViewHolder对象
				holder = new ViewHolder();
				convertView = View.inflate(context, R.layout.mylistview, null);
				holder.imageButton = (ImageButton) convertView.findViewById(R.id.myimagebutton);
				holder.username = (TextView) convertView.findViewById(R.id.username);
				holder.time = (TextView) convertView.findViewById(R.id.time);
				holder.content = (TextView) convertView.findViewById(R.id.content);
				
				convertView.setTag(holder);
			}else {
				holder = (ViewHolder) convertView.getTag();
			}
			holder.imageButton.setImageResource(imageid[position]);
			holder.username.setText(str[position]);
			holder.time.setText(time[position]);
			holder.content.setText(content[position]);
			
			return convertView;
		}
    }
    
    //增加这样一个静态类，缓存一下，这样不用每次都重新加载
    final class ViewHolder{
    	public ImageButton imageButton;
    	public TextView username;
    	public TextView time;
    	public TextView content;
    }
}

注意改变标题栏的样式的时候，要在你项目的styles.xml,加上：

并在AndroidManifest.xml文件里面加上你改变的标题栏的样式：

android:label="@string/title_activity_main"

ok，就这些了。

android:label="@string/title_activity_main"