//自定义listview
package com.ce.scrollview_listview;
import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.ListView;
public class MyListView extends ListView {
int mLastMotionY;
boolean bottomFlag;
public MyListView(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
public MyListView(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
}
public MyListView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// TODO Auto-generated constructor stub
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
// TODO Auto-generated method stub
// 闂冪粯顒涢悥鍓佽�閹凤附鍩呮禍瀣╂�
if (bottomFlag) {
getParent().requestDisallowInterceptTouchEvent(true);
}
return super.onInterceptTouchEvent(ev);
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
// TODO Auto-generated method stub
int y = (int) ev.getRawY();
switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN:
// 妫f牕鍘涢幏锔藉焻down娴滃�娆?,鐠佹澘缍峺閸ф劖鐖?
mLastMotionY = y;
break;
case MotionEvent.ACTION_MOVE:
// deltaY > 0 閺勵垰鎮滄稉瀣�箥閸旓拷,< 0閺勵垰鎮滄稉濠呯箥閸旓拷
int deltaY = y - mLastMotionY;
if (deltaY < 0) {
bottomFlag = true;
getParent().requestDisallowInterceptTouchEvent(true);
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
break;
}
return super.onTouchEvent(ev);
}
}
//MainActivity
package com.ce.scrollview_listview;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
import android.widget.ListView;
public class MainActivity extends Activity {
// 制造数据
String[] strs = { "item 1", "item 2", "item 3", "item 4", "item 5",
"item 6", "item 7", "item 8", "item 9", "item 10", "item 11",
"item 12", "item 13", "item 14", "item 15" };
private ListView listview;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listview = (ListView) findViewById(R.id.listView1);
listview.setAdapter(new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_list_item_1, strs));
setListViewHeightBasedOnChildren(listview);
}
@Override
public void onWindowFocusChanged(boolean hasFocus) {
// TODO Auto-generated method stub
super.onWindowFocusChanged(hasFocus);
}
private void setListViewHeightBasedOnChildren(ListView listView) {
ListAdapter listAdapter = listView.getAdapter();
if (listAdapter == null) {
return;
}
int totalHeight = 0;
for (int i = 0, len = listAdapter.getCount(); i < len; i++) {
// listAdapter.getCount()返回数据项的数目
View listItem = listAdapter.getView(i, null, listView);
// 计算子项View 的宽高
listItem.measure(0, 0);
// 统计所有子项的总高度
totalHeight += listItem.getMeasuredHeight();
}
ViewGroup.LayoutParams params = listView.getLayoutParams();
// params.height = totalHeight
// + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
params.height = 400;
// listView.getDividerHeight()获取子项间分隔符占用的高度
// params.height最后得到整个ListView完整显示需要的高度
listView.setLayoutParams(params);
}
}
//mian.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FFE1FF"
android:orientation="vertical" >
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<com.ce.scrollview_listview.MyListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fadingEdge="vertical"
android:fadingEdgeLength="5dp" />
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="button1111111111" />
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="button1111111111" />
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="button1111111111" />
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="button1111111111" />
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="button1111111111" />
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="button1111111111" />
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="button1111111111" />
</LinearLayout>
</ScrollView>
</LinearLayout>