ScrollView中嵌套listview，scrollviewlistview

ScrollView中嵌套listview，scrollviewlistview

儘管網上有很多實現方式，但是還是想分享下，已做備忘，實現方式時，通過linearlayout來代替listview

廢話少說，上代碼：

ExpandListView.java：

public class ExpandListView extends LinearLayout implements OnClickListener {private ListAdapter adapter = null;private OnItemClickListener listener = null;private Drawable dividerDrawable = null;private int dividerHeight = 0;public ExpandListView(Context context) {super(context);// TODO Auto-generated constructor stubinitView(null);}public ExpandListView(Context context, AttributeSet attrs) {super(context, attrs);// TODO Auto-generated constructor stubinitView(attrs);}public void initView(AttributeSet attrs) {setOrientation(VERTICAL); if(attrs != null) {TypedArray array = getContext().obtainStyledAttributes(attrs, R.styleable.ExpandListView);dividerDrawable = array.getDrawable(R.styleable.ExpandListView_divider_view);dividerHeight = array.getDimensionPixelSize(R.styleable.ExpandListView_divider_height, 0);array.recycle();}}/** * 綁定資料 */public void bindData() {if(adapter == null) {Logger.e("adapter is null");return ;}View convertView = null;LayoutParams params = null;for(int i = 0; i < adapter.getCount(); i++) {//如果這兒不傳this(parent)傳null的話，adapter在inflate時，parent為null，這樣convertView的LayoutParams為空白（需要父控制項進行測量）convertView = adapter.getView(i, null, this);if(convertView.getLayoutParams() == null) {params = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);} else {params = (LayoutParams) convertView.getLayoutParams();}convertView.setLayoutParams(params);convertView.setId(i);addDivider(i);if(listener != null) {convertView.setOnClickListener(this);} addView(convertView);}}@SuppressWarnings("deprecation")public void addDivider(int position) {if((dividerDrawable != null || dividerHeight != 0) && position != 0) {//添加dividerImageView iv = new ImageView(getContext());LayoutParams params = null;if(dividerHeight != 0) {params = new LayoutParams(LayoutParams.MATCH_PARENT, dividerHeight);} else {params = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);}iv.setLayoutParams(params);iv.setBackgroundDrawable(dividerDrawable);addView(iv);} }/** * 設定adapter * @param adapter */public void setAdapter(ListAdapter adapter) {this.adapter = adapter;if(getChildCount() != 0) {removeAllViews();}bindData();}@Overridepublic void onClick(View v) {// TODO Auto-generated method stublistener.onItemClick(v, v.getId(), adapter);}public void setOnItemClickListener(OnItemClickListener listener) {this.listener = listener;}public interface OnItemClickListener {public void onItemClick(View convertView, int position, ListAdapter adapter);}}

attrs.xml

<?xml version="1.0" encoding="utf-8"?><resources>    <declare-styleable name="ExpandListView">        <attr name="divider_view" format="reference" />        <attr name="divider_height" format="dimension" />    </declare-styleable></resources>

簡單使用：

 <com.ydk.mikeadmin.view.ExpandListView        android:id="@+id/part_one_list"        android:layout_width="match_parent"        android:layout_height="wrap_content"        mike:divider_height="2dip" />

然後就直接在代碼中，用ExpandListView.setAdapter設定下adapter就行了

額，就這麼多...只是這裡的convertView沒有複用起來，暫時還沒有想到什麼方法去複用

對於android ，ScrollView嵌套listview的問題

擷取listItem的方法，只能用來顯示靜態資料，也就是說資料是寫死的。
如果要用來顯示動態，那就必須自訂一個ListView，寫一個類去繼承Linearlayout
 
安卓ScrollView中嵌套Listview，Listview資料量很大

本身設計就有問題，android不能夠雙滑動的。其次載入時間長是不是因為你載入的資料有圖片？？如果有，可以非同步載入。最通用的方法就是分頁載入，每次只載入前20資料。