android > ListView > 加载不同控件

先是主 布局文件 main.xml

 

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <ListView 
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:id="@+id/list_view"
        ></ListView>

</LinearLayout>

 

然后是3个不同控件的布局文件，先是 TextView

 

 

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="horizontal" 
    android:padding="8dip"
    >
    <TextView   
       android:id="@+id/monitor_list_left"  
       android:layout_width="wrap_content"  
       android:layout_height="wrap_content"  
       android:layout_alignParentLeft="true"  
       android:layout_centerVertical="true"
       >     
   </TextView>      
   <TextView   
       android:id="@+id/monitor_list_right"  
       android:layout_width="wrap_content"  
       android:layout_height="wrap_content"  
       android:layout_alignParentRight="true"
       android:layout_centerVertical="true"  
       >     
   </TextView>  

</RelativeLayout>

 

 

然后是 Checkbox

 

 

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="horizontal" 
    android:padding="8dip"
    >
    <TextView   
       android:id="@+id/monitor_list_left"  
       android:layout_width="wrap_content"  
       android:layout_height="wrap_content"  
       android:layout_alignParentLeft="true"  
       android:layout_centerVertical="true"
       >     
   </TextView>      
   <CheckBox   
       android:id="@+id/monitor_list_right"  
       android:layout_width="wrap_content"  
       android:layout_height="wrap_content"  
       android:layout_alignParentRight="true"  
       android:layout_centerVertical="true"
       >     
   </CheckBox>  

</RelativeLayout>

 

 

然后是 Turn On / Turn Off  == ToggleButton 控件

 

 

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="horizontal" 
    android:padding="8dip"
    >
    <TextView   
       android:id="@+id/monitor_list_left"  
       android:layout_width="wrap_content"  
       android:layout_height="wrap_content"  
       android:layout_alignParentLeft="true"  
       android:layout_centerVertical="true"
       >     
   </TextView>      
   
   <ToggleButton
       android:id="@+id/monitor_list_right"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:layout_alignParentRight="true"  
       android:layout_centerVertical="true"  />

</RelativeLayout>

 

 

然后是 ListItem.java  里面继承了 BaseAdapter 并在里面做了 position判断调用不同 布局 的

 

 

package t1.com;

import java.util.HashMap;
import java.util.List;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.TextView;
import android.widget.ToggleButton;

public class ListItem extends BaseAdapter {
	private List<HashMap<String,String>> list;
	private Context context;
	 
	
	//构造函数
	public ListItem (Context context,List<HashMap<String,String>> list){
		this.context = context;
		this.list = list;
	}
	
	public int getCount() {
		// TODO Auto-generated method stub
		return list.size();
	}
	public Object getItem(int arg0) {
		// TODO Auto-generated method stub
		return list.get(arg0);
	}
	public long getItemId(int position) {
		// TODO Auto-generated method stub
		return position;
	}
	public View getView(int position, View convertView, ViewGroup parent) {
		// TODO Auto-generated method stub
		LayoutInflater mInflater = LayoutInflater.from(context);
		View view = null;
		switch (position) {
		case 0:
			view = mInflater.inflate(R.layout.list_textview, null);
			TextView title = (TextView)view.findViewById(R.id.monitor_list_left);
			title.setText("编号");
			
			TextView value = (TextView)view.findViewById(R.id.monitor_list_right);
			value.setText(list.get(position).get("data"));
			break;
		case 1:
			view = mInflater.inflate(R.layout.list_turn, null);	
			TextView title2 = (TextView)view.findViewById(R.id.monitor_list_left);
			title2.setText("是否开启");
			
			ToggleButton value2 = (ToggleButton)view.findViewById(R.id.monitor_list_right);
			if(list.get(position).get("data").equals("1")){
				value2.setChecked(true);
			}else{
				value2.setChecked(false);
			}
			break;	
			
		case 2:
			view = mInflater.inflate(R.layout.list_checkbox, null);
			TextView title3 = (TextView)view.findViewById(R.id.monitor_list_left);
			title3.setText("是否结婚");
			
			CheckBox value3 = (CheckBox)view.findViewById(R.id.monitor_list_right);
			if(list.get(position).get("data").equals("1")){
				value3.setChecked(true);
			}else{
				value3.setChecked(false);
			}
			break;	

		default:
			break;
		}
				
		
		
		return view;
	}
	
}

 

 

最后是 主Activity文件 T1Activity.java 

 

 

 

package t1.com;

import java.util.ArrayList;
import java.util.HashMap;

import android.app.Activity;
import android.os.Bundle;
import android.widget.ListView;

public class T1Activity extends Activity {
    /** Called when the activity is first created. */
	private ListView listVIew;
	ArrayList<HashMap<String, String>> listItem = new ArrayList<HashMap<String, String>>();
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        listVIew = (ListView)findViewById(R.id.list_view);
        
        
        String data[] = {"33","1","结婚设置","0"};
        
        for(int i = 0;i<data.length;i++){
        	HashMap<String, String> map = new HashMap<String, String>();
        	map.put("data", data[i]);
        	listItem.add(map);
        }
        
        ListItem listItemAdapter = new ListItem(T1Activity.this, listItem);
        listVIew.setAdapter(listItemAdapter);
    
    }
}

 

 

 

 

 

 

分割 布局

 

 

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="horizontal" 
    android:paddingLeft="8dip"
    android:paddingRight="8dip"
    android:paddingTop="4dip"
    android:paddingBottom="4dip"
    android:background="#E3E3E3"
    >
    <TextView   
       android:id="@+id/monitor_list_left"  
       android:layout_width="fill_parent"  
       android:layout_height="wrap_content"
       android:textSize="10dp"  
       >     
   </TextView>      

</RelativeLayout>

 

 

** 如果空间是EditText 时不能获取焦点的问题

 

    先设置litView 属性  android:scrollbars="none" 

 

    然后给 listVIew 的 父 层级 添加一个  LinearLayout , 再在外面添加一个 ScrollView ,  遇到 listview 无法显示完全的办法是 给他的 layout_height 写死

 

 

 

** 得到 ListView 中 各个控件中的值

 

			/*
			for (int i = 0; i < listVIew.getChildCount(); i++) {
			     LinearLayout ll = (LinearLayout)listVIew.getChildAt(i);// 获得子级
			     CheckBox chkone = (CheckBox) ll.findViewById(R.id.chkone);// 从子级中获得控件
			     
			     System.out.println("chkone.isChecked()：----------->"+chkone.isChecked());
			}
			*/	
			RelativeLayout ll = (RelativeLayout)listVIew.getChildAt(0);// 获得子级
			CheckBox chkone = (CheckBox) ll.findViewById(R.id.monitor_list_right);// 从子级中获得控件
			if(chkone.isChecked()){
				System.out.println("点击了");
			}else{
				System.out.println("没点击");
			}

 

 

注意  RelativeLayout ll = (RelativeLayout)listVIew.getChildAt(0); 需要根据 子 布局的 不同 布局方式 定义 RelativeLayout  或  LinearLayout 

 

 

 ** 关于处理 刷新 listView 置顶问题 使用 notifyDatasetchanged() 在之前先 将 listItemAdapter 里面的构造函数中的变量 重新赋值

		
		if(!doFir){
			listItemAdapter = new LoginIndexList(LoginIndex.this, listItem,1+Integer.parseInt(localDeviceArray[99]));  
			listVIew.setAdapter(listItemAdapter);
		}else{
			
			listItemAdapter.list = listItem;
			listItemAdapter.cut = 1+Integer.parseInt(localDeviceArray[99]);  
			listItemAdapter.notifyDataSetChanged();

		}
		
		doFir = true;