Android(安卓)Listview不同item不同内容

实现的界面如下：三种类型

MainActivity.java:

public class MainActivity extends Activity {private final int TYPE_SWITCH = 0;private final int TYPE_SEEKBAR = 1;private final int TYPE_BUTTON = 2;private static final String[] led_opt={"江苏","广州","新疆","台湾"};private static final String[] led_optContext={"华东地区","位于东南沿海","一个遥远的地方","隔海相望"};List<Map<String, Object>> mData = new ArrayList<Map<String, Object>>();MyAdapter listAdapter ;@Overrideprotected void onCreate(Bundle savedInstanceState) {//setTheme(16974123); super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);{ListView lv = (ListView) this.findViewById(R.id.listview_home); Map<String, Object> map;/** 电源开关*/ map = new HashMap<String, Object>();map.put("img",R.drawable.power_ico_50dp);map.put("title",led_opt[0]);map.put("info",led_optContext[0]); mData.add(map); map = new HashMap<String, Object>();map.put("img",R.drawable.white_ico_50dp);map.put("title",led_opt[1]);map.put("info",led_optContext[1]); mData.add(map);map = new HashMap<String, Object>();map.put("img",R.drawable.rgb_ico_50dp);map.put("title",led_opt[2]);map.put("info",led_optContext[2]); mData.add(map);map = new HashMap<String, Object>();map.put("img",R.drawable.dream_ico_50dp);map.put("title",led_opt[3]);map.put("info",led_optContext[3]); mData.add(map);listAdapter = new MyAdapter(this); lv.setAdapter(listAdapter);} }

MyAdapter.java

/**     * 自定义一个Adapter(实现了ListAdapter接口)     *      * @author Administrator     *      */       class MyAdapter extends BaseAdapter{         LayoutInflater inflater = null;         public MyAdapter(Context context) {             this.inflater = LayoutInflater.from(context);            //inflater =(LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);        }          @Override         public int getCount() {         // TODO Auto-generated method stub             return mData.size();}          //每个convert view都会调用此方法，获得当前所需要的view样式         @Override         public int getItemViewType(int position) {             // TODO Auto-generated method stub                          int p = position%4;             if(p == 0)                 return TYPE_SWITCH;             else if(p == 1)                 return TYPE_SEEKBAR;             else if(p == 2)                 return TYPE_SEEKBAR;             else if(p == 3)                 return TYPE_BUTTON;             else                  return 0;         }          @Override         public int getViewTypeCount() {             // TODO Auto-generated method stub             return 3;         }          @Override         public Object getItem(int position) {             // TODO Auto-generated method stub             //return mData.get(arg0);             return position;         }          @Override         public long getItemId(int position) {             // TODO Auto-generated method stub             return position;         }          @Override         public View getView(int position, View convertView, ViewGroup parent) {             // TODO Auto-generated method stub                                 viewHolder_switch holder_switch = null;             viewHolder_seekbar holder_seekbar = null;             viewHolder_button holder_button = null;                           int type = getItemViewType(position);                           if (convertView == null)             {                Log.e("convertView = ", " NULL");               switch(type)              {              case TYPE_SWITCH:                                                        holder_switch = new viewHolder_switch();                  convertView = inflater.inflate(R.layout.listview_switch_row, parent, false);                 // convertView = inflater.inflate(R.layout.listview_switch_row,null);                  //                  holder_switch.img = (ImageView)convertView.findViewById(R.id.img_sw);                  holder_switch.title = (TextView)convertView.findViewById(R.id.title_sw);                  holder_switch.info = (TextView)convertView.findViewById(R.id.info_sw);                  Log.e("convertView = ", "NULL TYPE_SWITCH");                                       convertView.setTag(holder_switch);                                                                         break;              case TYPE_SEEKBAR:                                                                    convertView = inflater.inflate(R.layout.listview_seekbar_row, parent, false);                                    holder_seekbar = new viewHolder_seekbar();                  holder_seekbar.img = (ImageView)convertView.findViewById(R.id.img_sb);                  holder_seekbar.title = (TextView)convertView.findViewById(R.id.title_sb);                  holder_seekbar.info = (TextView)convertView.findViewById(R.id.info_sb);                  Log.e("convertView = ", "NULL TYPE_SEEKBAR");                                                       convertView.setTag(holder_seekbar);                  break;                                case TYPE_BUTTON:                                     convertView = inflater.inflate(R.layout.listview_button_row, parent, false);                  holder_button = new viewHolder_button();                  holder_button.img = (ImageView)convertView.findViewById(R.id.img_btn);                  holder_button.title = (TextView)convertView.findViewById(R.id.title_btn);                  holder_button.info = (TextView)convertView.findViewById(R.id.info_btn);                  Log.e("convertView = ", "NULL TYPE_BUTTON");                                                           convertView.setTag(holder_button);                break;              }             }else{                //有convertView，按样式，取得不用的布局                switch(type)                {                case TYPE_SWITCH:                    holder_switch = (viewHolder_switch) convertView.getTag();                    Log.e("convertView !!!!!!= ", "NULL TYPE_SWITCH");                    break;                case TYPE_SEEKBAR:                    holder_seekbar = (viewHolder_seekbar) convertView.getTag();                    Log.e("convertView !!!!!!= ", "NULL TYPE_SEEKBAR");                    break;                case TYPE_BUTTON:                    holder_button = (viewHolder_button) convertView.getTag();                    Log.e("convertView !!!!!!= ", "NULL TYPE_BUTTON");                    break;                }             }              //设置资源             switch(type)             {                case TYPE_SWITCH:                      holder_switch.img.setBackgroundResource((Integer)mData.get(position).get("img"));                      holder_switch.title.setText((String)mData.get(position).get("title"));                      holder_switch.info.setText((String)mData.get(position).get("info"));                      //holder_switch.Switch.setChecked(true);                  break;             case TYPE_SEEKBAR:                                      holder_seekbar.img.setBackgroundResource((Integer)mData.get(position).get("img"));                    holder_seekbar.title.setText((String)mData.get(position).get("title"));                    holder_seekbar.info.setText((String)mData.get(position).get("info"));                                      break;              case TYPE_BUTTON:                  holder_button.img.setBackgroundResource((Integer)mData.get(position).get("img"));                  holder_button.title.setText((String)mData.get(position).get("title"));                  holder_button.info.setText((String)mData.get(position).get("info"));                break;              }                          return convertView;           }       }         //各个布局的控件资源        class viewHolder_switch{                       /** 布局ID */            public int layoutID;             /** 图片ID */            public ImageView img;             /** 标题 */            public TextView title;             /** 内容 */            public TextView info;            /* switch*/            public Switch Switch;                                        }         class viewHolder_seekbar{            /** 布局ID */            public int layoutID;             /** 图片ID */            public ImageView img;             /** 标题 */            public TextView title;             /** 内容 */            public TextView info;             public SeekBar sb;             }         class viewHolder_button        {             private int layoutID;             private ImageView img;             /** 标题 */            private TextView title;             /** 内容 */            private TextView info;             /** 按钮名称 */            private Button button;                                 }        }

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