? ? ? 在項目開發(fā)的時候，相信大家可能會遇到一個ListView中出現(xiàn)多個不同的布局，遇到這個問題我的大致思路就是創(chuàng)建多個viewholder，在getViewType的時候設(shè)置不同位置的item用不同的viewholder，好了不廢話那么多直接上代碼：

package?com.sunny.youdao;import?java.util.ArrayList; import?java.util.List;import?android.content.Context; 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.ImageView; import?android.widget.LinearLayout; import?android.widget.TextView;public?class?MyAdapter?extends?BaseAdapter?{private?Context?mContext;private?LinearLayout?linearLayout?=?null;private?LayoutInflater?inflater;private?List<String>?list?=?new?ArrayList<String>();private?TextView?tex;private?final?int?VIEW_TYPE?=?3;private?final?int?TYPE_1?=?0;private?final?int?TYPE_2?=?1;private?final?int?TYPE_3?=?2;public?MyAdapter(Context?context,?List<String>?list)?{//?TODO?Auto-generated?constructor?stubthis.mContext?=?context;this.list?=?list;inflater?=?LayoutInflater.from(mContext);}@Overridepublic?int?getCount()?{//?TODO?自動生成的方法存根return?list.size();}@Overridepublic?Object?getItem(int?position)?{//?TODO?自動生成的方法存根return?list.get(position);}@Overridepublic?long?getItemId(int?position)?{//?TODO?自動生成的方法存根return?position;}//每個convert?view都會調(diào)用此方法，獲得當前所需要的view樣式@Overridepublic?int?getItemViewType(int?position)?{//?TODO?Auto-generated?method?stubint?viewtype?=?position%6;if(viewtype?==?0)return?TYPE_1;else?if(viewtype?<?3)return?TYPE_2;else?if(viewtype?<?6)return?TYPE_3;elsereturn?TYPE_1;}//返回樣式的數(shù)量@Overridepublic?int?getViewTypeCount()?{//?TODO?Auto-generated?method?stubreturn?3;}@Overridepublic?View?getView(int?position,?View?convertView,?ViewGroup?parent)?{viewHolder1?holder1?=?null;viewHolder2?holder2?=?null;viewHolder3?holder3?=?null;int?type?=?getItemViewType(position);//?無convertView，需要new出各個控件if?(convertView?==?null)?{Log.e("convertView?=?",?"###convertView為空###");//?按當前所需的樣式，確定new的布局switch?(type)?{case?TYPE_1:convertView?=?inflater.inflate(R.layout.listitem1,?parent,false);holder1?=?new?viewHolder1();holder1.textView?=?(TextView)?convertView.findViewById(R.id.textview1);holder1.checkBox?=?(CheckBox)?convertView.findViewById(R.id.checkbox);Log.e("convertView?=?",?"布局樣式一");convertView.setTag(holder1);break;case?TYPE_2:convertView?=?inflater.inflate(R.layout.listitem2,?parent,false);holder2?=?new?viewHolder2();holder2.textView?=?(TextView)?convertView.findViewById(R.id.textview2);Log.e("convertView?=?",?"布局樣式二");convertView.setTag(holder2);break;case?TYPE_3:convertView?=?inflater.inflate(R.layout.listitem3,?parent,false);holder3?=?new?viewHolder3();holder3.textView?=?(TextView)?convertView.findViewById(R.id.textview3);holder3.p_w_picpathView?=?(ImageView)?convertView.findViewById(R.id.p_w_picpathview);Log.e("convertView?=?",?"布局樣式三");convertView.setTag(holder3);break;}}?else?{//?有convertView，按樣式，取得不用的布局switch?(type)?{case?TYPE_1:holder1?=?(viewHolder1)?convertView.getTag();Log.e("convertView=?",?"布局樣式一");break;case?TYPE_2:holder2?=?(viewHolder2)?convertView.getTag();Log.e("convertView=?",?"布局樣式二");break;case?TYPE_3:holder3?=?(viewHolder3)?convertView.getTag();Log.e("convertView=?",?"布局樣式三");break;}}//?設(shè)置資源switch?(type)?{case?TYPE_1:holder1.textView.setText(Integer.toString(position));holder1.checkBox.setChecked(true);break;case?TYPE_2:holder2.textView.setText(Integer.toString(position));break;case?TYPE_3:holder3.textView.setText(Integer.toString(position));holder3.p_w_picpathView.setBackgroundResource(R.drawable.icon);break;}return?convertView;}//?各個布局的控件資源class?viewHolder1?{CheckBox?checkBox;TextView?textView;}class?viewHolder2?{TextView?textView;}class?viewHolder3?{ImageView?p_w_picpathView;TextView?textView;}}

? ? 代碼比較直觀明了，注釋也比較詳細，就不在詳細說明了，歡迎大家一塊學(xué)習(xí)交流~

轉(zhuǎn)載于:https://blog.51cto.com/sunnygeek/1671245

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