事件分发

来源：互联网发布：mac面对面快传编辑：程序博客网时间：2024/06/09 04:56

1.MainActivity布局

<ScrollView 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"

    tools:context=".MainActivity" >
<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    >

    <com.bwei.adapter.MyListview
        android:id="@+id/lv_main_listview"
        android:layout_width="fill_parent"
        android:layout_height="300dp"
        ></com.bwei.adapter.MyListview>

    <TextView
        android:id="@+id/tname"
        android:layout_width="fill_parent"
        android:layout_height="500dp"

        android:text="心若冰清，天塌不惊" />
</LinearLayout>
</ScrollView>

2.子布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="fill_parent"
        android:layout_height="50dp"
        android:text="天天好心情" />

</LinearLayout>

3.MainActivity类

package com.bwei.main;

import com.bwei.adapter.MyAdapter;
import com.bwei.adapter.MyListview;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.ListView;

public class MainActivity extends Activity {

    private MyListview lv_main_listview;
   private MyAdapter adapter;

   @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        lv_main_listview = (MyListview)findViewById(R.id.lv_main_listview);
        adapter=new MyAdapter(this);
        lv_main_listview.setAdapter(adapter);

    }

}

4.MyAdapter类

package com.bwei.adapter;

import com.bwei.main.R;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;

public class MyAdapter extends BaseAdapter {

   Context context;
   public MyAdapter(Context context) {
       this.context=context;
   }

   @Override
   public int getCount() {
       // TODO Auto-generated method stub
       return 20;
   }

   @Override
   public Object getItem(int position) {
       // TODO Auto-generated method stub
       return null;
   }

   @Override
   public long getItemId(int position) {
       // TODO Auto-generated method stub
       return 0;
   }

   @Override
   public View getView(int position, View convertView, ViewGroup parent) {
       ViewHolder holder;
       if(convertView==null){
           holder=new ViewHolder();
           convertView=View.inflate(context, R.layout.lv_item, null);
           convertView.setTag(holder);
       }else{
           holder=(ViewHolder) convertView.getTag();
       }


       return convertView;
   }
class ViewHolder{

   }
}

5.MyListview类

package com.bwei.adapter;

import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.ListView;

public class MyListview extends ListView {

   public MyListview(Context context, AttributeSet attrs, int defStyle) {
       super(context, attrs, defStyle);
       // TODO Auto-generated constructor stub
   }

   public MyListview(Context context, AttributeSet attrs) {
       super(context, attrs);
       // TODO Auto-generated constructor stub
   }

   public MyListview(Context context) {
       super(context);
       // TODO Auto-generated constructor stub
   }

   @Override
   public boolean onTouchEvent(MotionEvent ev) {
       boolean b = super.onTouchEvent(ev);
       return b;
   }

   @Override
   public boolean onInterceptTouchEvent(MotionEvent ev) {
       // TODO Auto-generated method stub
       return false;
   }

   @Override
   public boolean dispatchTouchEvent(MotionEvent ev) {
       //
        getParent().requestDisallowInterceptTouchEvent(true);
        boolean b = super.dispatchTouchEvent(ev);
       return true;
   }

}

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