标签：setondismisslistener pointtoposition setanimationlistener popupwindow getchildat
MainActivity
package com.example.ss;
import java.util.ArrayList;
import android.app.ListActivity;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.animation.Animation;
import android.view.animation.Animation.AnimationListener;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.ListView;
import android.widget.PopupWindow;
import android.widget.PopupWindow.OnDismissListener;
import android.widget.Toast;
import com.example.ss.adapters.NewsListAdapter;
import com.example.ss.adapters.NewsListAdapter.ViewHolder;
import com.example.ss.adapters.User;
public class MainActivity extends ListActivity {
private ArrayList<User> array;
private NewsListAdapter adapter;
private PopupWindow pop;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final ListView listView = getListView();
array = getData();
adapter = new NewsListAdapter(this, array);
listView.setAdapter(adapter);
//创建popupwindow
pop = new PopupWindow();
pop.setTouchable(true);
pop.setWidth(LayoutParams.WRAP_CONTENT);
pop.setHeight(LayoutParams.WRAP_CONTENT);
pop.setFocusable(true);
ColorDrawable dw = new ColorDrawable(0x00000000);
pop.setBackgroundDrawable(dw);
//这个方法是：左滑出现删除按钮时候，点击其他位置，删除按钮消失，回归正常状态
pop.setOnDismissListener(new OnDismissListener() {
@Override
public void onDismiss() {
unDelete(CurrentView, -2);
}
});
/**
* 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) {
View v = ((ListView) view).getChildAt(position1);
if ((x - upx) > 0) {
/**
* 手指向左滑动，弹出删除按钮，Item出现动画效果
*/
prepareDelete(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) {
if (CurrentView != null) {
unDelete(CurrentView, positon);
}
}
});
}
protected void unDelete(final View rowView, final int positon) {
if (rowView==null) {
return;
}
if ("half_delete".equals(((ViewHolder) rowView.getTag()).status)) {
final Animation animation = (Animation) AnimationUtils
.loadAnimation(rowView.getContext(), R.anim.item2);
animation.setFillAfter(true);
((ViewHolder) rowView.getTag()).status = "normal";
CurrentView = null;
animation.setAnimationListener(new AnimationListener() {
public void onAnimationStart(Animation animation) {
}
public void onAnimationRepeat(Animation animation) {
}
public void onAnimationEnd(Animation animation) {
rowView.clearAnimation();
}
});
rowView.startAnimation(animation);
}
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
private View CurrentView;
protected void prepareDelete(final View rowView, final int positon) {
//如果不是处于删除状态
if (!"half_delete".equals(((ViewHolder) rowView.getTag()).status)) {
final Animation animation = (Animation) AnimationUtils
.loadAnimation(rowView.getContext(), R.anim.item);
animation.setFillAfter(true);
((ViewHolder) rowView.getTag()).status = "half_delete";
//赋值给成员变量
CurrentView = rowView;
//添加删除按钮popup
addDeleteButton(rowView, positon);
rowView.startAnimation(animation);
}
}
private void addDeleteButton(final View view, final int position) {
Button button = new Button(MainActivity.this);
button.setText("删除");
button.setVisibility(View.VISIBLE);
pop.setContentView(button);
pop.showAsDropDown(view, 560, -130);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//点击删除按钮，进行删除操作
doDelete(view, position);
pop.dismiss();
CurrentView = null;
}
});
}
protected void doDelete(final View rowView, final int positon) {
if (rowView == null) {
return;
}
if ("half_delete".equals(((ViewHolder) rowView.getTag()).status)) {
final Animation animation = (Animation) AnimationUtils
.loadAnimation(rowView.getContext(), R.anim.item2);
animation.setDuration(0);
animation.setFillAfter(true);
((ViewHolder) rowView.getTag()).status = "normal";
CurrentView = null;
animation.setAnimationListener(new AnimationListener() {
public void onAnimationStart(Animation animation) {
}
public void onAnimationRepeat(Animation animation) {
}
public void onAnimationEnd(Animation animation) {
rowView.clearAnimation();
array.remove(positon);
adapter.notifyDataSetChanged();
}
});
rowView.startAnimation(animation);
}
}
private ArrayList<User> getData() {
ArrayList<User> users = new ArrayList<User>();
User user = new User();
user.logo = "http://t10.baidu.com/it/u=3485469777,1638135480&fm=56";
user.name = "1111";
user.time = "11:11";
user.sign = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
users.add(user);
user = new User();
user.name = "222222";
users.add(user);
user = new User();
user.name = "3333";
users.add(user);
user = new User();
user.name = "44444";
users.add(user);
user = new User();
user.name = "5555";
users.add(user);
user = new User();
user.name = "6666";
users.add(user);
user = new User();
user.name = "77777";
users.add(user);
user = new User();
user.name = "88888";
users.add(user);
user = new User();
user.name = "99999";
users.add(user);
user = new User();
user.name = "aaaaa";
users.add(user);
return users;
}
}package com.example.ss.adapters;
import java.util.List;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.example.ss.R;
/**
* Created by xch on 2014/6/14.
*/
public class NewsListAdapter extends BaseAdapter {
private Context mContext;
private List<User> mUsers;
Drawable defaultDrawable;
public NewsListAdapter(Context context, List<User> users) {
this.mContext = context;
this.mUsers = users;
defaultDrawable = mContext.getResources().getDrawable(R.drawable.ic_launcher);
}
@Override
public int getCount() {
return mUsers.size();
}
@Override
public Object getItem(int position) {
return mUsers.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = null;
final ViewHolder holder;
if (convertView == null) {
view = LayoutInflater.from(mContext).inflate(
R.layout.item_new, null);
holder = new ViewHolder();
holder.headImage = (ImageView) view.findViewById(R.id.new_it_iv_head);
holder.nameText = (TextView) view.findViewById(R.id.new_it_tv_name);
holder.signText = (TextView) view.findViewById(R.id.new_it_tv_sign);
holder.timeText = (TextView) view.findViewById(R.id.new_it_tv_time);
view.setTag(holder);
} else {
view = convertView;
holder = (ViewHolder) view.getTag();
}
User user = mUsers.get(position);
holder.headImage.setImageDrawable(defaultDrawable);
holder.nameText.setText(user.name);
holder.signText.setText(user.sign);
holder.timeText.setText(user.time);
return view;
}
public class ViewHolder {
ImageView headImage;
TextView nameText;
TextView signText;
TextView timeText;
public String status;
}
}
package com.example.ss.adapters;
public class User {
public long uid;
public String name;
public String logo;
public String time;
public String sign;
}
item_new.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="60dp" >
<RelativeLayout
android:id="@+id/new_it_rl"
android:layout_width="match_parent"
android:layout_height="60dp" >
<ImageView
android:id="@+id/new_it_iv_head"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_margin="5dp"
android:src="@drawable/ic_launcher" />
<TextView
android:id="@+id/new_it_tv_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginTop="10dp"
android:layout_toRightOf="@+id/new_it_iv_head"
android:text="New Text"
android:textSize="16sp" />
<TextView
android:id="@+id/new_it_tv_sign"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/new_it_iv_head"
android:layout_marginBottom="5dp"
android:layout_toRightOf="@+id/new_it_iv_head"
android:text="New Text" />
<TextView
android:id="@+id/new_it_tv_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_alignTop="@+id/new_it_tv_name"
android:layout_marginRight="130dp"
android:text="New Text" />
</RelativeLayout>
</FrameLayout><?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="300"
android:fromXDelta="0%"
android:fromYDelta="0"
android:toXDelta="-30%p"
android:toYDelta="0" /><?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="300"
android:fromXDelta="-30%p"
android:fromYDelta="0"
android:toXDelta="0"
android:toYDelta="0" />
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标签：setondismisslistener pointtoposition setanimationlistener popupwindow getchildat
原文地址：http://blog.csdn.net/u013210620/article/details/47446933
