• SwipeListView 具体解释 实现微信,QQ等滑动删除效果


    转载请标明出处:http://blog.csdn.net/lmj623565791/article/details/28508769

    今天看别人项目,看到别人使用了SwipeListView,Google一把,果然github上的,也參考了csdn上的几篇文章,然后自己写了个样例,分享给大家。

    效果图:


    嗯,看一眼SwipeListView的參数的设置:

    If you decide to use SwipeListView as a view, you can define it in your xml layout like this:

        <com.fortysevendeg.swipelistview.SwipeListView
                xmlns:swipe="http://schemas.android.com/apk/res-auto"
                android:id="@+id/example_lv_list"
                android:listSelector="#00000000"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                swipe:swipeFrontView="@+id/front"
                swipe:swipeBackView="@+id/back"
                swipe:swipeActionLeft="[reveal | dismiss]"
                swipe:swipeActionRight="[reveal | dismiss]"
                swipe:swipeMode="[none | both | right | left]"
                swipe:swipeCloseAllItemsWhenMoveList="[true | false]"
                swipe:swipeOpenOnLongPress="[true | false]"
                swipe:swipeAnimationTime="[miliseconds]"
                swipe:swipeOffsetLeft="[dimension]"
                swipe:swipeOffsetRight="[dimension]"
                />
    
    • swipeFrontView - Required - front view id. 即ListView Item正常显示的控件Id,且必须与Item的布局文件里的控件id一样
    • swipeBackView - Required - back view id.  手指滑动时显示的,隐藏在FrontView后面,且必须与item的布局文件里控件Id一样
    • swipeActionLeft - Optional - left swipe action Default: 'reveal'  左滑的动作,默认reveal,即显示BackView,还有dismiss,choice会触发响应的方法。
    • swipeActionRight - Optional - right swipe action Default: 'reveal' 同上
    • swipeMode - Gestures to enable or 'none'. Default: 'both' 设置左滑、右滑、都支持
    • swipeCloseAllItemsWhenMoveList - Close revealed items on list motion. Default: 'true' 当滚动listview时,关闭全部展开的Item,最好不要设置为false,因为item的复用,false存在一些问题。
    • swipeOpenOnLongPress - Reveal on long press Default: 'true' 长按时触发显示
    • swipeAnimationTime - item drop animation time. Default: android configuration 动画时间长度
    • swipeOffsetLeft - left offset 左偏移量
    • swipeOffsetRight - right offset 右偏移量
    基本属性都介绍了,以下上样例:
    1、布局文件
    <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:background="@color/white"
        android:clickable="true"
        android:orientation="vertical" xmlns:swipe="http://schemas.android.com/apk/res/com.example.zhy_swipelistview02">
    
        <include
            layout="@layout/main_title"
            android:focusable="true" />
    
        <FrameLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent" >
    
            <com.fortysevendeg.swipelistview.SwipeListView
                android:id="@+id/id_swipelistview"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent"
                swipe:swipeActionLeft="reveal"
                swipe:swipeBackView="@+id/id_back"
                swipe:swipeCloseAllItemsWhenMoveList="true"
                swipe:swipeFrontView="@+id/id_front"
                swipe:swipeMode="left"
                swipe:swipeOffsetLeft="200dip"
                swipe:swipeOpenOnLongPress="false" />
    
            <TextView
                android:id="@+id/empty"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:drawableTop="@drawable/no_chat"
                android:text="木有联系人"
                android:textColor="#ffb7b7b7"
                android:textSize="14.0sp"
                android:visibility="gone" />
        </FrameLayout>
    
        <requestFocus />
    
    </LinearLayout>

    item的布局文件:
    <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="60dp" >
    
        <LinearLayout
            android:id="@+id/id_back"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#ffcccccc"
            android:gravity="center|right" >
    
            <Button
                android:id="@+id/id_remove"
                android:layout_width="60dp"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginRight="4dp"
                android:background="@drawable/red_button"
                android:text="Delete"
                android:textColor="#fff" >
            </Button>
        </LinearLayout>
    
        <LinearLayout
            android:id="@+id/id_front"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#ffffffff" >
    
            <TextView
                android:id="@+id/id_text"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="10dp"
                android:gravity="center_vertical"
                android:minHeight="?android:attr/listPreferredItemHeight"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:textColor="#000"
                android:textSize="25sp" >
            </TextView>
        </LinearLayout>
    
    </FrameLayout>

    注意相应布局的id和swipeListView中的frontView和backView的Id一致。

    2、MainActivity
    package com.example.zhy_swipelistview02;
    
    import java.util.ArrayList;
    import java.util.List;
    
    import android.app.Activity;
    import android.os.Bundle;
    import android.util.Log;
    import android.view.Window;
    
    import com.fortysevendeg.swipelistview.BaseSwipeListViewListener;
    import com.fortysevendeg.swipelistview.SwipeListView;
    
    public class MainActivity extends Activity
    {
    
    	protected static final String TAG = "Activity";
    	private SwipeListView mSwipeListView;
    	private DataAdapter mAdapter;
    	private List<String> mDatas;
    
    	@Override
    	protected void onCreate(Bundle savedInstanceState)
    	{
    		super.onCreate(savedInstanceState);
    		requestWindowFeature(Window.FEATURE_NO_TITLE);
    		setContentView(R.layout.activity_main);
    
    		initDatas();
    		
    		mSwipeListView = (SwipeListView) findViewById(R.id.id_swipelistview);
    		mAdapter = new DataAdapter(this, mDatas , 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 initDatas()
    	{
    		mDatas = new ArrayList<String>();
    		for (int i = 'A'; i <= 'Z'; i++)
    			mDatas.add((char) i + "");
    	}
    
    }
    

    Adapter:
    package com.example.zhy_swipelistview02;
    
    import java.util.List;
    
    import com.fortysevendeg.swipelistview.SwipeListView;
    
    import android.content.Context;
    import android.util.Log;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.View.OnClickListener;
    import android.view.ViewGroup;
    import android.widget.BaseAdapter;
    import android.widget.Button;
    import android.widget.TextView;
    
    public class DataAdapter extends BaseAdapter
    {
    
    	private List<String> mDatas;
    	private LayoutInflater mInflater;
    	private SwipeListView mSwipeListView ;
    
    	public DataAdapter(Context context, List<String> datas , SwipeListView swipeListView)
    	{
    		this.mDatas = datas;
    		mInflater = LayoutInflater.from(context);
    		mSwipeListView = swipeListView;
    	}
    
    	@Override
    	public int getCount()
    	{
    		return mDatas.size();
    	}
    
    	@Override
    	public Object getItem(int position)
    	{
    		return mDatas.get(position);
    	}
    
    	@Override
    	public long getItemId(int position)
    	{
    		return position;
    	}
    
    	@Override
    	public View getView(final int position, View convertView, ViewGroup parent)
    	{
    		convertView = mInflater.inflate(R.layout.list_item, null);
    
    		TextView tv = (TextView) convertView.findViewById(R.id.id_text);
    		Button del = (Button) convertView.findViewById(R.id.id_remove);
    		tv.setText(mDatas.get(position));
    		del.setOnClickListener(new OnClickListener()
    		{
    			@Override
    			public void onClick(View v)
    			{
    				mDatas.remove(position);
    				notifyDataSetChanged();
    				 /**
    				  * 关闭SwipeListView
    				  * 不关闭的话,刚删除位置的item存在问题
    				  * 在监听事件中onListChange中关闭,会出现故障
    				  */
    				mSwipeListView.closeOpenedItems();
    			}
    		});
    		
    		return convertView;
    	}
    
    }
    

    代码相当简单,MainActivity里面设置了监听事件,能够使用Demo的时候,观察触发的事件的输出,假设有特殊需求能够做一些操作。





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  • 原文地址:https://www.cnblogs.com/mfrbuaa/p/3800610.html
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