package com.yangfuhai.animation1;
import java.util.ArrayList;
import android.app.ListActivity;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.animation.Animation;
import android.view.animation.Animation.AnimationListener;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
/**
* @title 模仿android 4.0 通知栏动画
* @description listview 滑动删除item
* @company 探索者网络工作室(www.tsz.net)
* @author michael Young (www.YangFuhai.com)
* @version 1.0
* @created 2012-9-29
*/
public class MainActivity extends ListActivity {
private ArrayList<String> array;
private ArrayAdapter<String> adapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ListView listView = getListView();
array = new ArrayList<String>();
String aa[] = { "items1", "item2", "items3", "item4", "items5",
"item6", "items7", "item8", "items9", "item10", "items11",
"item12" };
for (int i = 0; i < aa.length; i++) {
array.add(aa[i]);
}
adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, array);
listView.setAdapter(adapter);
/**
* 添加listview滑动接听
*/
listView.setOnTouchListener(new OnTouchListener() {
float x, y, upx, upy;
public boolean onTouch(View view, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
x = event.getX();
y = event.getY();
}
if (event.getAction() == MotionEvent.ACTION_UP) {
upx = event.getX();
upy = event.getY();
int position1 = ((ListView) view).pointToPosition((int) x, (int) y);
int position2 = ((ListView) view).pointToPosition((int) upx,(int) upy);
if (position1 == position2 && Math.abs(x - upx) > 10) {
View v = ((ListView) view).getChildAt(position1);
removeListItem(v,position1);
}
}
return false;
}
});
/**
* listview 的item 点击事件
*/
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View rowView,int positon, long id) {
Toast.makeText(rowView.getContext(), "你点击了第" + positon +"位置的item",Toast.LENGTH_SHORT).show();
// removeListItem(rowView, positon);
}
});
}
/**
* 删除item，并播放动画
* @param rowView 播放动画的view
* @param positon 要删除的item位置
*/
protected void removeListItem(View rowView, final int positon) {
final Animation animation = (Animation) AnimationUtils.loadAnimation(rowView.getContext(), R.anim.item_anim);
animation.setAnimationListener(new AnimationListener() {
public void onAnimationStart(Animation animation) {}
public void onAnimationRepeat(Animation animation) {}
public void onAnimationEnd(Animation animation) {
array.remove(positon);
adapter.notifyDataSetChanged();
animation.cancel();
}
});
rowView.startAnimation(animation);
}
}
动画文件 item_anim.xml ：
<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="800"
android:fromXDelta="0"
android:fromYDelta="0"
android:toXDelta="800"
android:toYDelta="0" />
后记
这个只是一个demo，可能离商用还有一定的距离，我只是给了各位朋友的一些思路，希望通过这个思路能举一反三
