侧滑删除进阶（二）
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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;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);final ListView listView = getListView();array = getData();adapter = new NewsListAdapter(this, array);listView.setAdapter(adapter);//创建popupwindowpop = 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() {@Overridepublic 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() {@Overridepublic 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popupaddDeleteButton(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() {@Overridepublic 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;}}NewsListAdapter
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; }}User
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>
item.xml
<?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" />
item2.xml
<?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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