Android 下实现带有图标和Checkbox的 ListView Item（2）

布局文件

XML code

    
    
    
    

     
     
     
      
     
     
     
     <?
     
     
     
     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
     
     
     
     ="wrap_content"
     
     
     
      android:orientation
     
     
     
     ="horizontal"
     
     
     
      
     
     
     
     >
     
     
     
      
     
     
     
     <
     
     
     
     RelativeLayout 
     
     
     
     android:id
     
     
     
     ="@+id/RelativeLayout01"
     
     
     
      android:layout_width
     
     
     
     ="fill_parent"
     
     
     
      android:layout_height
     
     
     
     ="wrap_content"
     
     
     
      android:gravity
     
     
     
     ="center_horizontal"
     
     
     
      
     
     
     
     >
     
     
     
      
     
     
     
     <
     
     
     
     ImageView 
     
     
     
     android:id
     
     
     
     ="@+id/ImageView01_checklayout"
     
     
     
      android:layout_width
     
     
     
     ="wrap_content"
     
     
     
      android:layout_height
     
     
     
     ="wrap_content"
     
     
     
      android:layout_alignParentLeft
     
     
     
     ="true"
     
     
     
      
     
     
     
     >
     
     
     
      
     
     
     
     </
     
     
     
     ImageView
     
     
     
     >
     
     
     
      
     
     
     
     <
     
     
     
     TextView 
     
     
     
     android:id
     
     
     
     ="@+id/TextView01_checklayout"
     
     
     
      android:layout_width
     
     
     
     ="wrap_content"
     
     
     
      android:layout_height
     
     
     
     ="wrap_content"
     
     
     
      android:layout_marginTop
     
     
     
     ="20px"
     
     
     
      android:layout_marginLeft
     
     
     
     ="70px"
     
     
     
      android:textSize
     
     
     
     ="20px"
     
     
     
      android:gravity
     
     
     
     ="center"
     
     
     
      
     
     
     
     >
     
     
     
      
     
     
     
     </
     
     
     
     TextView
     
     
     
     >
     
     
     
      
     
     
     
     <
     
     
     
     CheckBox 
     
     
     
     android:id
     
     
     
     ="@+id/CheckBox01_checklayout"
     
     
     
      android:layout_width
     
     
     
     ="wrap_content"
     
     
     
      android:layout_height
     
     
     
     ="wrap_content"
     
     
     
      android:layout_alignParentRight
     
     
     
     ="true"
     
     
     
      android:layout_marginTop
     
     
     
     ="14px"
     
     
     
      
     
     
     
     ></
     
     
     
     CheckBox
     
     
     
     >
     
     
     
      
     
     
     
     </
     
     
     
     RelativeLayout
     
     
     
     >
     
     
     
      
     
     
     
     </
     
     
     
     LinearLayout
     
     
     
     >
     
     
     
      
    
    
    
    

     
     
     
     

       Java code 
     
     
     
     
     
 
      
       
       
       
       

        
        
        
         
        
        
        
        package
        
        
        
         com.jingoal.mobile.android.jingoal.adapter; 
        
        
        
        import
        
        
        
         java.util.ArrayList; 
        
        
        
        import
        
        
        
         java.util.List; 
        
        
        
        import
        
        
        
         com.jingoal.mobile.android.jingoal.R; 
        
        
        
        import
        
        
        
         com.jingoal.mobile.android.jingoal.holder.CheckBoxViewHolder; 
        
        
        
        import
        
        
        
         android.content.Context; 
        
        
        
        import
        
        
        
         android.graphics.Bitmap; 
        
        
        
        import
        
        
        
         android.graphics.BitmapFactory; 
        
        
        
        import
        
        
        
         android.util.Log; 
        
        
        
        import
        
        
        
         android.view.LayoutInflater; 
        
        
        
        import
        
        
        
         android.view.View; 
        
        
        
        import
        
        
        
         android.view.ViewGroup; 
        
        
        
        import
        
        
        
         android.widget.BaseAdapter; 
        
        
        
        import
        
        
        
         android.widget.CheckBox; 
        
        
        
        import
        
        
        
         android.widget.CompoundButton; 
        
        
        
        import
        
        
        
         android.widget.ImageView; 
        
        
        
        import
        
        
        
         android.widget.TextView; 
        
        
        
        import
        
        
        
         android.widget.CompoundButton.OnCheckedChangeListener; 
        
        
        
        /**
        
        
        
        * * 带复选框的listView的适配器 * 
        
        
        
        @author
        
        
        
         Administrator * 
        
        
        
        */
        
        
        
         
        
        
        
        public
        
        
        
         
        
        
        
        class
        
        
        
         MyCheckBoxAdapter 
        
        
        
        extends
        
        
        
         BaseAdapter { 
        
        
        
        //
        
        
        
         用来将布局文件变成列表中的文件
        
        
        
         
        
        
        
         
        
        
        
        private
        
        
        
         LayoutInflater mInflater 
        
        
        
        =
        
        
        
         
        
        
        
        null
        
        
        
        ; 
        
        
        
        private
        
        
        
         Bitmap mIcon 
        
        
        
        =
        
        
        
         
        
        
        
        null
        
        
        
        ; 
        
        
        
        private
        
        
        
         Context myContext 
        
        
        
        =
        
        
        
         
        
        
        
        null
        
        
        
        ; 
        
        
        
        private
        
        
        
         List
        
        
        
        <
        
        
        
        People
        
        
        
        >
        
        
        
         data 
        
        
        
        =
        
        
        
         
        
        
        
        null
        
        
        
        ; 
        
        
        
        private
        
        
        
         ArrayList
        
        
        
        <
        
        
        
        People
        
        
        
        >
        
        
        
         checkeddata 
        
        
        
        =
        
        
        
         
        
        
        
        new
        
        
        
         ArrayList
        
        
        
        <
        
        
        
        People
        
        
        
        >
        
        
        
        (); 
        
        
        
        private
        
        
        
         ArrayList
        
        
        
        <
        
        
        
        CheckBox
        
        
        
        >
        
        
        
         allCheck 
        
        
        
        =
        
        
        
         
        
        
        
        new
        
        
        
         ArrayList
        
        
        
        <
        
        
        
        CheckBox
        
        
        
        >
        
        
        
        (); 
        
        
        
        //
        
        
        
         是否全选
        
        
        
         
        
        
        
         
        
        
        
        private
        
        
        
         
        
        
        
        boolean
        
        
        
         isSelectAll 
        
        
        
        =
        
        
        
         
        
        
        
        false
        
        
        
        ; 
        
        
        
        public
        
        
        
         MyCheckBoxAdapter(Context context, List
        
        
        
        <
        
        
        
        People
        
        
        
        >
        
        
        
         data) { 
        
        
        
        this
        
        
        
        .myContext 
        
        
        
        =
        
        
        
         context; 
        
        
        
        this
        
        
        
        .mInflater 
        
        
        
        =
        
        
        
         LayoutInflater.from(
        
        
        
        this
        
        
        
        .myContext); 
        
        
        
        this
        
        
        
        .mIcon 
        
        
        
        =
        
        
        
         BitmapFactory.decodeResource( 
        
        
        
        this
        
        
        
        .myContext.getResources(), R.drawable.icon1); 
        
        
        
        this
        
        
        
        .data 
        
        
        
        =
        
        
        
         data; } @Override 
        
        
        
        public
        
        
        
         
        
        
        
        int
        
        
        
         getCount() { 
        
        
        
        return
        
        
        
         data.size(); } @Override 
        
        
        
        public
        
        
        
         Object getItem(
        
        
        
        int
        
        
        
         position) { 
        
        
        
        //
        
        
        
         TODO Auto-generated method stub
        
        
        
         
        
        
        
         
        
        
        
        return
        
        
        
         data.get(position); } @Override 
        
        
        
        public
        
        
        
         
        
        
        
        long
        
        
        
         getItemId(
        
        
        
        int
        
        
        
         position) { 
        
        
        
        //
        
        
        
         TODO Auto-generated method stub
        
        
        
         
        
        
        
         
        
        
        
        return
        
        
        
         position; } @Override 
        
        
        
        public
        
        
        
         View getView(
        
        
        
        final
        
        
        
         
        
        
        
        int
        
        
        
         position, View view, ViewGroup parent) { 
        
        
        
        final
        
        
        
         CheckBoxViewHolder holder;
        
        
        
        //
        
        
        
         布局的结构类
        
        
        
         
        
        
        
         
        
        
        
        if
        
        
        
         (view 
        
        
        
        ==
        
        
        
         
        
        
        
        null
        
        
        
        )
        
        
        
        //
        
        
        
         如果现在没有视图
        
        
        
         
        
        
        
         { 
        
        
        
        //
        
        
        
         初始化布局文件和布局的组建结构
        
        
        
         
        
        
        
         view 
        
        
        
        =
        
        
        
         
        
        
        
        this
        
        
        
        .mInflater.inflate(R.layout.check_layout, 
        
        
        
        null
        
        
        
        ); holder 
        
        
        
        =
        
        
        
         
        
        
        
        new
        
        
        
         CheckBoxViewHolder(); holder.mImageView 
        
        
        
        =
        
        
        
         (ImageView) view.findViewById(R.id.ImageView01_checklayout); holder.mTextView 
        
        
        
        =
        
        
        
         (TextView) view.findViewById(R.id.TextView01_checklayout); holder.mCheckBox 
        
        
        
        =
        
        
        
         (CheckBox) view.findViewById(R.id.CheckBox01_checklayout); 
        
        
        
        //
        
        
        
         设置是否被全选
        
        
        
         
        
        
        
         
        
        
        
        if
        
        
        
         (
        
        
        
        this
        
        
        
        .isSelectAll 
        
        
        
        ==
        
        
        
         
        
        
        
        true
        
        
        
        ) { holder.mCheckBox.setChecked(
        
        
        
        true
        
        
        
        ); } 
        
        
        
        else
        
        
        
         { holder.mCheckBox.setChecked(
        
        
        
        false
        
        
        
        ); } view.setTag(holder);
        
        
        
        //
        
        
        
         将布局指向一个模式
        
        
        
         
        
        
        
         } 
        
        
        
        else
        
        
        
         { holder 
        
        
        
        =
        
        
        
         (CheckBoxViewHolder) view.getTag(); } 
        
        
        
        //
        
        
        
         设置布局里的组建元素
        
        
        
         
        
        
        
         holder.mTextView.setText(data.get(position).toString()); holder.mImageView.setImageBitmap(mIcon); 
        
        
        
        if
        
        
        
         (holder.mCheckBox.isChecked()) { 
        
        
        
        if
        
        
        
         (
        
        
        
        this
        
        
        
        .checkeddata.size() 
        
        
        
        <
        
        
        
         
        
        
        
        0
        
        
        
        ) { 
        
        
        
        this
        
        
        
        .checkeddata.add(
        
        
        
        this
        
        
        
        .data.get(position)); } 
        
        
        
        else
        
        
        
         { 
        
        
        
        if
        
        
        
         (
        
        
        
        this
        
        
        
        .checkeddata.indexOf(
        
        
        
        this
        
        
        
        .data.get(position)) 
        
        
        
        <
        
        
        
         
        
        
        
        0
        
        
        
        ) { 
        
        
        
        this
        
        
        
        .checkeddata.add(
        
        
        
        this
        
        
        
        .data.get(position)); } } } holder.mCheckBox .setOnCheckedChangeListener(
        
        
        
        new
        
        
        
         OnCheckedChangeListener() { @Override 
        
        
        
        public
        
        
        
         
        
        
        
        void
        
        
        
         onCheckedChanged(CompoundButton button, 
        
        
        
        boolean
        
        
        
         isSelected) { ArrayList
        
        
        
        <
        
        
        
        People
        
        
        
        >
        
        
        
         list 
        
        
        
        =
        
        
        
         MyCheckBoxAdapter.
        
        
        
        this
        
        
        
        .checkeddata; 
        
        
        
        if
        
        
        
         (isSelected 
        
        
        
        ==
        
        
        
         
        
        
        
        true
        
        
        
        ) { 
        
        
        
        if
        
        
        
         (list.size() 
        
        
        
        >
        
        
        
         
        
        
        
        0
        
        
        
        ) { People people 
        
        
        
        =
        
        
        
         MyCheckBoxAdapter.
        
        
        
        this
        
        
        
        .data .get(position); 
        
        
        
        if
        
        
        
         (list.indexOf(people) 
        
        
        
        <
        
        
        
         
        
        
        
        0
        
        
        
        ) { list.add(people); } } 
        
        
        
        else
        
        
        
         { list.add(MyCheckBoxAdapter.
        
        
        
        this
        
        
        
        .data .get(position)); } } 
        
        
        
        else
        
        
        
         { 
        
        
        
        if
        
        
        
         (list.size() 
        
        
        
        >
        
        
        
         
        
        
        
        0
        
        
        
        ) { People people 
        
        
        
        =
        
        
        
         MyCheckBoxAdapter.
        
        
        
        this
        
        
        
        .data .get(position); 
        
        
        
        for
        
        
        
         (
        
        
        
        int
        
        
        
         i 
        
        
        
        =
        
        
        
         
        
        
        
        0
        
        
        
        ; i 
        
        
        
        <
        
        
        
         list.size(); i
        
        
        
        ++
        
        
        
        ) { 
        
        
        
        if
        
        
        
         (people 
        
        
        
        ==
        
        
        
         list.get(i)) { list.remove(i); } } } } } }); 
        
        
        
        return
        
        
        
         view; } 
        
        
        
        /**
        
        
        
         * 得到已选择的条数 * 
        
        
        
        @return
        
        
        
         
        
        
        
        */
        
        
        
         
        
        
        
        public
        
        
        
         
        
        
        
        int
        
        
        
         getCheckedSize() { 
        
        
        
        return
        
        
        
         
        
        
        
        this
        
        
        
        .checkeddata.size(); } 
        
        
        
        /**
        
        
        
         * 获得选择的数据列表 * 
        
        
        
        @return
        
        
        
         
        
        
        
        */
        
        
        
         
        
        
        
        public
        
        
        
         ArrayList
        
        
        
        <
        
        
        
        People
        
        
        
        >
        
        
        
         getChecked() { 
        
        
        
        return
        
        
        
         
        
        
        
        this
        
        
        
        .checkeddata; } 
        
        
        
        /**
        
        
        
         * 是否全选 * 
        
        
        
        @return
        
        
        
         
        
        
        
        */
        
        
        
         
        
        
        
        public
        
        
        
         
        
        
        
        boolean
        
        
        
         isSelectAll() { 
        
        
        
        return
        
        
        
         isSelectAll; } 
        
        
        
        /**
        
        
        
         * 清除所有的选项 
        
        
        
        */
        
        
        
         
        
        
        
        public
        
        
        
         
        
        
        
        void
        
        
        
         removeAllChecked() { 
        
        
        
        int
        
        
        
         size 
        
        
        
        =
        
        
        
         getCheckedSize(); 
        
        
        
        for
        
        
        
        (
        
        
        
        int
        
        
        
         i 
        
        
        
        =
        
        
        
         
        
        
        
        0
        
        
        
         ; i 
        
        
        
        <
        
        
        
         size ; i
        
        
        
        ++
        
        
        
        ) { 
        
        
        
        this
        
        
        
        .checkeddata.removeAll(checkeddata); } } 
        
        
        
        /**
        
        
        
         * 设置全选 * 
        
        
        
        @param
        
        
        
         isSelectAll 
        
        
        
        */
        
        
        
         
        
        
        
        public
        
        
        
         
        
        
        
        void
        
        
        
         setSelectAll(
        
        
        
        boolean
        
        
        
         isSelectAll) { 
        
        
        
        this
        
        
        
        .isSelectAll 
        
        
        
        =
        
        
        
         isSelectAll; } }