listviewitemListView具有多种item布局

怎么获得listview每个item'的位置

每个item的高度需要从适配器里面设置，iew.setAdapter(adapter参数)，这里面设置的适配器需要你自己定义，如果需要设置item高度，最好可以重写BaseAdapter 自定义Adapter,然后调用iew.setadapter（）方法，设置自定义的adapter,这样自定义的adapter适配器如何显示完全就可以自己控制了。

item项的高度跟item布局有关 首先你需要自定义adapter，继承BaseAdapter就行了 然后在你自定义的adapter里getView方法里载入你自己的写的item布局，并以此返回 convertView = mInflater.inflate(R.layout.xxx, null); return convertView; 这样

android 取得listview中item的值

Loc= (TextView) arg1.findViewById(android.R.id.text1); 应该是这样吧，主要看text1和text2是什么控件，相应改变TextView就行

ListView具有多种item布局

1）重写 getViewTypeCount() – 该方法返回多少个不同的布局 2）重写 getItemViewType(int) – 根据position返回相应的Item [java] view plain copy print? /** * 比原来的多了getItemViewType和getViewTypeCount这两个方法， * * */ public class ChatAdapter extends BaseAdapter { public static final String KEY = "key"; public static final String VALUE = "value"; public static final int VALUE_TIME_TIP = 0;// 7种不同的布局 public static final int VALUE_LEFT_TEXT = 1; public static final int VALUE_LEFT_IMAGE = 2; public static final int VALUE_LEFT_AUDIO = 3; public static final int VALUE_RIGHT_TEXT = 4; public static final int VALUE_RIGHT_IMAGE = 5; public static final int VALUE_RIGHT_AUDIO = 6; private LayoutInflater mInflater; private List myList; public ChatAdapter(Context context, List myList) { this.myList = myList; mInflater = (LayoutInflater) context .getSystemService(Context.LAYOUT_INFLATER_SERVICE); } @Override public int getCount() { return myList.size(); } @Override public Object getItem(int arg0) { return myList.get(arg0); } @Override public long getItemId(int arg0) { return arg0; } @Override public View getView(int position, View convertView, ViewGroup arg2) { Message msg = myList.get(position); int type = getItemViewType(position); ViewHolderTime holderTime = null; ViewHolderRightText holderRightText = null; ViewHolderRightImg holderRightImg = null; ViewHolderRightAudio holderRightAudio = null; ViewHolderLeftText holderLeftText = null; ViewHolderLeftImg holderLeftImg = null; ViewHolderLeftAudio holderLeftAudio = null; if (convertView == null) { switch (type) { case VALUE_TIME_TIP: holderTime = new ViewHolderTime(); convertView = mInflater.inflate(R.layout.list_item_time_tip, null); TimeTip = (TextView) convertView .findViewById(_time_tip); TimeTip.setText(msg.getValue()); convertView.setTag(holderTime); break; // 左边 case VALUE_LEFT_TEXT: holderLeftText = new ViewHolderLeftText(); convertView = mInflater.inflate(R.layout.list_item_left_text, null); holderLeftText.ivLeftIcon = (ImageView) convertView .findViewById(R.id.iv_icon); holderLeftText.btnLeftText = (Button) convertView .findViewById(R.id.btn_left_text); holderLeftText.btnLeftText.setText(msg.getValue()); convertView.setTag(holderLeftText); break; case VALUE_LEFT_IMAGE: holderLeftImg = new ViewHolderLeftImg(); convertView = mInflater.inflate(R.layout.list_item_left_iamge, null); holderLeftImg.ivLeftIcon = (ImageView) convertView .findViewById(R.id.iv_icon); holderLeftImg.ivLeftImage = (ImageView) convertView .findViewById(R.id.iv_left_image); holderLeftImg.ivLeftImage.setImageResource(R.drawable.test); convertView.setTag(holderLeftImg); break; case VALUE_LEFT_AUDIO: holderLeftAudio = new ViewHolderLeftAudio(); convertView = mInflater.inflate(R.layout.list_item_left_audio, null); holderLeftAudio.ivLeftIcon = (ImageView) convertView .findViewById(R.id.iv_icon); holderLeftAudio.btnLeftAudio = (Button) convertView .findViewById(R.id.btn_left_audio); LeftAudioTime = (TextView) convertView .findViewById(_left_audio_time); LeftAudioTime.setText(msg.getValue()); convertView.setTag(holderLeftAudio); break; // 右边 case VALUE_RIGHT_TEXT: holderRightText= new ViewHolderRightText(); convertView = mInflater.inflate(R.layout.list_item_right_text, null); holderRightText.ivRightIcon = (ImageView) convertView .findViewById(R.id.iv_icon); holderRightText.btnRightText = (Button) convertView .findViewById(R.id.btn_right_text); holderRightText.btnRightText.setText(msg.getValue()); convertView.setTag(holderRightText); break; case VALUE_RIGHT_IMAGE: holderRightImg= new ViewHolderRightImg(); convertView = mInflater.inflate(R.layout.list_item_right_iamge, null); holderRightImg.ivRightIcon = (ImageView) convertView .findViewById(R.id.iv_icon); holderRightImg.ivRightImage = (ImageView) convertView .findViewById(R.id.iv_right_image); holderRightImg.ivRightImage.setImageResource(R.drawable.test); convertView.setTag(holderRightImg); break; case VALUE_RIGHT_AUDIO: holderRightAudio=new ViewHolderRightAudio(); convertView = mInflater.inflate(R.layout.list_item_right_audio, null); holderRightAudio.ivRightIcon = (ImageView) convertView .findViewById(R.id.iv_icon); holderRightAudio.btnRightAudio = (Button) convertView .findViewById(R.id.btn_right_audio); RightAudioTime = (TextView) convertView .findViewById(_right_audio_time); RightAudioTime.setText(msg.getValue()); convertView.setTag(holderRightAudio); break; default: break; } } else { Log.d("baseAdapter", "Adapter_:"+(convertView == null) ); switch (type) { case VALUE_TIME_TIP: holderTime=(ViewHolderTime)convertView.getTag(); TimeTip.setText(msg.getValue()); break; case VALUE_LEFT_TEXT: holderLeftText=(ViewHolderLeftText)convertView.getTag(); holderLeftText.btnLeftText.setText(msg.getValue()); break; case VALUE_LEFT_IMAGE: holderLeftImg=(ViewHolderLeftImg)convertView.getTag(); holderLeftImg.ivLeftImage.setImageResource(R.drawable.test); break; case VALUE_LEFT_AUDIO: holderLeftAudio=(ViewHolderLeftAudio)convertView.getTag(); LeftAudioTime.setText(msg.getValue()); break; case VALUE_RIGHT_TEXT: holderRightText=(ViewHolderRightText)convertView.getTag(); holderRightText.btnRightText.setText(msg.getValue()); break; case VALUE_RIGHT_IMAGE: holderRightImg=(ViewHolderRightImg)convertView.getTag(); holderRightImg.ivRightImage.setImageResource(R.drawable.test); break; case VALUE_RIGHT_AUDIO: holderRightAudio=(ViewHolderRightAudio)convertView.getTag(); RightAudioTime.setText(msg.getValue()); break; default: break; } //holder = (ViewHolder) convertView.getTag(); } return convertView; } /** * 根据数据源的position返回需要显示的的layout的type * * type的值必须从0开始 * * */ @Override public int getItemViewType(int position) { Message msg = myList.get(position); int type = msg.getType(); Log.e("TYPE:", "" + type); return type; } /** * 返回所有的layout的数量 * * */ @Override public int getViewTypeCount() { return 7; } class ViewHolderTime { private TimeTip;// 时间 } class ViewHolderRightText { private ImageView ivRightIcon;// 右边的头像 private Button btnRightText;// 右边的文本 } class ViewHolderRightImg { private ImageView ivRightIcon;// 右边的头像 private ImageView ivRightImage;// 右边的图像 } class ViewHolderRightAudio { private ImageView ivRightIcon;// 右边的头像 private Button btnRightAudio;// 右边的声音 private RightAudioTime;// 右边的声音时间 } class ViewHolderLeftText { private ImageView ivLeftIcon;// 左边的头像 private Button btnLeftText;// 左边的文本 } class ViewHolderLeftImg { private ImageView ivLeftIcon;// 左边的头像 private ImageView ivLeftImage;// 左边的图像 } class ViewHolderLeftAudio { private ImageView ivLeftIcon;// 左边的头像 private Button btnLeftAudio;// 左边的声音 private LeftAudioTime;// 左边的声音时间 } }