package com.example.scrollview;

import android.support.v7.app.ActionBarActivity;

import android.util.Log;

import android.app.Activity;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.MotionEvent;

import android.view.View;

import android.view.View.OnTouchListener;

import android.widget.ScrollView;

import android.widget.TextView;

public class MainActivity extends Activity {

    private TextView tv;

    private ScrollView scroll;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

tv=(TextView) findViewById(R.id.textview);

scroll=(ScrollView) findViewById(R.id.scrollview);

tv.getResources().getString(R.id.textview);

scroll.setOnTouchListener(new OnTouchListener() {

@Override

public boolean onTouch(View v, MotionEvent event) {

// TODO Auto-generated method stub

switch (event.getAction()){

case MotionEvent.ACTION_MOVE:{

if(scroll.getScrollY()<=0){

Log.i("Main", "顶部");

}

if(scroll.getChildAt(0).getMeasuredHeight()<=scroll.getHeight()+scroll.getScrollY()){

Log.i("Main", "底部");

Log.i("Main", "scroll.getChildAt(0).getMeasuredHeight()="+scroll.getChildAt(0).getMeasuredHeight()+"scroll.getHeight()="+scroll.getHeight()+"scroll.getScrollY()="+scroll.getScrollY());

tv.append(tv.getResources().getString(R.id.textview));

}

break;

}

}

return false;

}

});

}

}