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QQ的滑动删除效果很不错,要实现这种效果,可以使用SwipeListView。

1. 下载com.fortysevendeg.swipelistview这个项目(以前GitHub上有,现在GitHub上没有了,百度了很多次才下载到的),导入Eclipse,右键单击,选择Properties->Android,选中Library下面的IsLibrary。


2. 新建一个项目MySwipeListView,加入SwipeListView这个库。


3. 在主窗体里面放入一个SwipeListView控件:

<LinearLayout 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"android:orientation="vertical"android:paddingBottom="@dimen/activity_vertical_margin"android:paddingLeft="@dimen/activity_horizontal_margin"android:paddingRight="@dimen/activity_horizontal_margin"android:paddingTop="@dimen/activity_vertical_margin"tools:context="com.hzhi.myswipelistview.MainActivity" ><com.fortysevendeg.swipelistview.SwipeListViewxmlns:swipe="http://schemas.android.com/apk/res-auto"android:id="@+id/exampleSwipeListView"android:listSelector="#00000000"android:layout_width="fill_parent"android:layout_height="wrap_content"swipe:swipeBackView="@+id/back"swipe:swipeCloseAllItemsWhenMoveList="true"swipe:swipeDrawableChecked="@drawable/choice_selected"swipe:swipeDrawableUnchecked="@drawable/choice_unselected"swipe:swipeFrontView="@+id/front"swipe:swipeMode="both" swipe:swipeActionLeft="reveal"swipe:swipeActionRight="dismiss"swipe:swipeOpenOnLongPress="true"/></LinearLayout>
其中两个重要的属性:
swipe:swipeFrontView:上面的View,即不滑动时显示的View。
swipe:swipeBackView:下面的View,即滑动后显示的View。
这两个View都定义在SwipeListView的行布局文件里面: 

<?xml version="1.0" encoding="utf-8"?><FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"><LinearLayoutandroid:id="@+id/back"android:layout_width="fill_parent"android:layout_height="wrap_content"android:background="#ffcccccc"android:gravity="right"android:tag="back" ><Buttonandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:id="@+id/btn_delete"android:text="删除"/><Buttonandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:id="@+id/btn_update"android:text="更新"/></LinearLayout><RelativeLayoutandroid:orientation="vertical"android:id="@+id/front"android:layout_width="fill_parent"android:layout_height="wrap_content"android:background="#ffffffff"><ImageViewandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:id="@+id/example_row_iv_image"/><TextViewandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:layout_toRightOf="@id/example_row_iv_image"android:id="@+id/example_row_tv_title"/><TextViewandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:layout_toRightOf="@id/example_row_iv_image"android:layout_below="@id/example_row_tv_title"android:id="@+id/example_row_tv_description"/></RelativeLayout></FrameLayout>
SwipeListView的行布局文件使用FrameLayout布局,FrameLayout里面所有的所有子元素都堆叠在FrameLayout的左上角。 

4. SwipeListView和其他ListView一样,也需要Adapter,使用方法也是一样的。这里就不详细讲了。 

5. 在主窗体Java文件中实现SwipeListView的功能,代码如下:

package com.hzhi.myswipelistview;import android.support.v7.app.ActionBarActivity;import android.util.Log;import java.util.ArrayList;import com.fortysevendeg.swipelistview.BaseSwipeListViewListener;import com.fortysevendeg.swipelistview.SwipeListView;import android.os.Bundle;@SuppressWarnings("deprecation")public class MainActivity extends ActionBarActivity {protected static final String TAG = "MySwipeListView"; private ArrayList<String> mList;private MyAdapter mAdapter;private SwipeListView mSwipeListView;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);initData();mSwipeListView = (SwipeListView) findViewById(R.id.exampleSwipeListView);mAdapter = new MyAdapter(this, mList, mSwipeListView); mSwipeListView.setAdapter(mAdapter);mSwipeListView.setSwipeListViewListener(new BaseSwipeListViewListener(){@Override public void onChoiceChanged(int position, boolean selected) { Log.d(TAG, "onChoiceChanged:" + position + ", " + selected); }@Override public void onChoiceEnded() { Log.d(TAG, "onChoiceEnded"); }@Override public void onChoiceStarted() { Log.d(TAG, "onChoiceStarted"); }@Override public void onClickBackView(int position) { Log.d(TAG, "onClickBackView:" + position); }@Override public void onClickFrontView(int position) { Log.d(TAG, "onClickFrontView:" + position); }@Override public void onClosed(int position, boolean fromRight) { Log.d(TAG, "onClosed:" + position + "," + fromRight); }@Override public void onDismiss(int[] reverseSortedPositions) { Log.d(TAG, "onDismiss"); }@Override public void onFirstListItem() { Log.d(TAG, "onFirstListItem"); }@Override public void onLastListItem() { Log.d(TAG, "onLastListItem"); }@Override public void onListChanged() { Log.d(TAG, "onListChanged"); mSwipeListView.closeOpenedItems();}@Override public void onMove(int position, float x) { Log.d(TAG, "onMove:" + position + "," + x); }@Override public void onOpened(int position, boolean toRight) { Log.d(TAG, "onOpened:" + position + "," + toRight); }@Override public void onStartClose(int position, boolean right) { Log.d(TAG, "onStartClose:" + position + "," + right); }@Override public void onStartOpen(int position, int action, boolean right) { Log.d(TAG, "onStartOpen:" + position + "," + action + "," + right); } });}private void initData(){mList = new ArrayList<String>(); for (int i = 0; i <= 10; i++) mList.add("这是第" + i +"条数据!"); }}
最主要的代码即mSwipeListView.setSwipeListViewListener(new BaseSwipeListViewListener(){}),通过这行代码,为SwipeListView控件设置了Listener,可以根据自己的需要重载BaseSwipeListViewListener的各种方法。 

运行结果:


以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。