Android 仿QQ首页ListView左滑置顶、删除等实现源码

来源：互联网发布：淘宝发布宝贝好麻烦编辑：程序博客网时间：2024/05/12 04:54

效果图

实现源码：http://download.csdn.net/detail/pcaxb/9117007

package com.duguang.baseanimation.ui.listivew.deletelistview;import android.content.Context;import android.util.AttributeSet;import android.util.Log;import android.util.TypedValue;import android.view.MotionEvent;import android.view.View;import android.widget.LinearLayout;import android.widget.RelativeLayout;import android.widget.Scroller;import android.widget.TextView;import com.kayak.deletelistview.R;public class SlideView extends LinearLayout {    private static final String TAG = "SlideView";    private Context mContext;    private LinearLayout mViewContent;    private RelativeLayout mHolder;    private Scroller mScroller;    private OnSlideListener mOnSlideListener;    private int mHolderWidth = 120;    private int mLastX = 0;    private int mLastY = 0;    private static final int TAN = 2;    public interface OnSlideListener {        public static final int SLIDE_STATUS_OFF = 0;        public static final int SLIDE_STATUS_START_SCROLL = 1;        public static final int SLIDE_STATUS_ON = 2;        /**         * @param view current SlideView         * @param status SLIDE_STATUS_ON or SLIDE_STATUS_OFF         */        public void onSlide(View view, int status);    }    public SlideView(Context context) {        super(context);        initView();    }    public SlideView(Context context, AttributeSet attrs) {        super(context, attrs);        initView();    }    private void initView() {        mContext = getContext();        mScroller = new Scroller(mContext);        setOrientation(LinearLayout.HORIZONTAL);        View.inflate(mContext, R.layout.activity_listview_delete_slide_view_merge, this);        mViewContent = (LinearLayout) findViewById(R.id.view_content);        mHolderWidth = Math.round(TypedValue.applyDimension(                TypedValue.COMPLEX_UNIT_DIP, mHolderWidth, getResources()                        .getDisplayMetrics()));    }    public void setButtonText(CharSequence text) {        ((TextView)findViewById(R.id.delete)).setText(text);    }    public void setContentView(View view) {        mViewContent.addView(view);    }    public void setOnSlideListener(OnSlideListener onSlideListener) {        mOnSlideListener = onSlideListener;    }    public void shrink() {        if (getScrollX() != 0) {            this.smoothScrollTo(0, 0);        }    }    public void onRequireTouchEvent(MotionEvent event) {        int x = (int) event.getX();        int y = (int) event.getY();        int scrollX = getScrollX();        Log.d(TAG, "x=" + x + "  y=" + y);        switch (event.getAction()) {        case MotionEvent.ACTION_DOWN: {            if (!mScroller.isFinished()) {                mScroller.abortAnimation();            }            if (mOnSlideListener != null) {                mOnSlideListener.onSlide(this,                        OnSlideListener.SLIDE_STATUS_START_SCROLL);            }            break;        }        case MotionEvent.ACTION_MOVE: {            int deltaX = x - mLastX;            int deltaY = y - mLastY;            if (Math.abs(deltaX) < Math.abs(deltaY) * TAN) {                break;            }            int newScrollX = scrollX - deltaX;            if (deltaX != 0) {                if (newScrollX < 0) {                    newScrollX = 0;                } else if (newScrollX > mHolderWidth) {                    newScrollX = mHolderWidth;                }                this.scrollTo(newScrollX, 0);            }            break;        }        case MotionEvent.ACTION_UP: {            int newScrollX = 0;            if (scrollX - mHolderWidth * 0.75 > 0) {                newScrollX = mHolderWidth;            }            this.smoothScrollTo(newScrollX, 0);            if (mOnSlideListener != null) {                mOnSlideListener.onSlide(this,                        newScrollX == 0 ? OnSlideListener.SLIDE_STATUS_OFF                                : OnSlideListener.SLIDE_STATUS_ON);            }            break;        }        default:            break;        }        mLastX = x;        mLastY = y;    }    private void smoothScrollTo(int destX, int destY) {        // 缓慢滚动到指定位置        int scrollX = getScrollX();        int delta = destX - scrollX;        mScroller.startScroll(scrollX, 0, delta, 0, Math.abs(delta) * 3);        invalidate();    }    @Override    public void computeScroll() {        if (mScroller.computeScrollOffset()) {            scrollTo(mScroller.getCurrX(), mScroller.getCurrY());            postInvalidate();        }    }}

package com.duguang.baseanimation.ui.listivew.deletelistview;import android.content.Context;import android.util.AttributeSet;import android.util.Log;import android.view.MotionEvent;import android.view.View;import android.widget.ListView;import com.duguang.baseanimation.ui.listivew.deletelistview.DeleteListViewMainActivity.MessageItem;public class ListViewCompat extends ListView {    private static final String TAG = "ListViewCompat";    private SlideView mFocusedItemView;    public ListViewCompat(Context context) {        super(context);    }    public ListViewCompat(Context context, AttributeSet attrs) {        super(context, attrs);    }    public ListViewCompat(Context context, AttributeSet attrs, int defStyle) {        super(context, attrs, defStyle);    }    public void shrinkListItem(int position) {        View item = getChildAt(position);        if (item != null) {            try {                ((SlideView) item).shrink();            } catch (ClassCastException e) {                e.printStackTrace();            }        }    }    @Override    public boolean onTouchEvent(MotionEvent event) {        switch (event.getAction()) {        case MotionEvent.ACTION_DOWN: {            int x = (int) event.getX();            int y = (int) event.getY();            int position = pointToPosition(x, y);            Log.e(TAG, "postion=" + position);            if (position != INVALID_POSITION) {                MessageItem data = (MessageItem) getItemAtPosition(position);                mFocusedItemView = data.slideView;                Log.e(TAG, "FocusedItemView=" + mFocusedItemView);            }        }        default:            break;        }        if (mFocusedItemView != null) {            mFocusedItemView.onRequireTouchEvent(event);        }        return super.onTouchEvent(event);    }}

package com.duguang.baseanimation.ui.listivew.deletelistview;import java.util.ArrayList;import java.util.List;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.TextView;import android.widget.Toast;import com.duguang.baseanimation.ui.base.BaseActivity;import com.duguang.baseanimation.ui.listivew.deletelistview.SlideView.OnSlideListener;import com.kayak.deletelistview.R;public class DeleteListViewMainActivity extends BaseActivity implements OnItemClickListener, OnClickListener,        OnSlideListener {    private static final String TAG = "MainActivity";    private ListViewCompat mListView;    private List<MessageItem> mMessageItems = new ArrayList<DeleteListViewMainActivity.MessageItem>();    private SlideView mLastSlideViewWithStatusOn;        private SlideAdapter adapter;    @Overridepublic void setView() { setContentView(R.layout.activity_listview_delete_main);}@Overridepublic void initView() {  mListView = (ListViewCompat) findViewById(R.id.list);        for (int i = 0; i < 20; i++) {            MessageItem item = new MessageItem();            if (i % 3 == 0) {                item.iconRes = R.drawable.delete_default_qq_avatar;                item.title = "腾讯新闻";                item.msg = "青岛爆炸满月：大量鱼虾死亡";                item.time = "晚上18:18";            } else {                item.iconRes = R.drawable.delete_wechat_icon;                item.title = "微信团队";                item.msg = "欢迎你使用微信";                item.time = "12月18日";            }            mMessageItems.add(item);        }        adapter = new SlideAdapter();        mListView.setAdapter(adapter);        mListView.setOnItemClickListener(this);}@Overridepublic void setListener() {// TODO Auto-generated method stub}    private class SlideAdapter extends BaseAdapter {        private LayoutInflater mInflater;        SlideAdapter() {            super();            mInflater = getLayoutInflater();        }        @Override        public int getCount() {            return mMessageItems.size();        }        @Override        public Object getItem(int position) {            return mMessageItems.get(position);        }        @Override        public long getItemId(int position) {            return position;        }        @Override        public View getView(final int position, View convertView, ViewGroup parent) {            ViewHolder holder;            SlideView slideView = (SlideView) convertView;            if (slideView == null) {                View itemView = mInflater.inflate(R.layout.item_listview_delete, null);                slideView = new SlideView(DeleteListViewMainActivity.this);                slideView.setContentView(itemView);                holder = new ViewHolder(slideView);                slideView.setOnSlideListener(DeleteListViewMainActivity.this);                slideView.setTag(holder);            } else {                holder = (ViewHolder) slideView.getTag();            }            MessageItem item = mMessageItems.get(position);            item.slideView = slideView;            item.slideView.shrink();            holder.icon.setImageResource(item.iconRes);            holder.title.setText(item.title);            holder.msg.setText(item.msg);            holder.time.setText(item.time);            holder.deleteHolder.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {mMessageItems.remove(position);    adapter.notifyDataSetChanged();    Toast.makeText(DeleteListViewMainActivity.this, "删除第" + position+"个条目", 0).show();}});                        return slideView;        }    }    public class MessageItem {        public int iconRes;        public String title;        public String msg;        public String time;        public SlideView slideView;    }    private static class ViewHolder {        public ImageView icon;        public TextView title;        public TextView msg;        public TextView time;        public ViewGroup deleteHolder;        ViewHolder(View view) {            icon = (ImageView) view.findViewById(R.id.icon);            title = (TextView) view.findViewById(R.id.title);            msg = (TextView) view.findViewById(R.id.msg);            time = (TextView) view.findViewById(R.id.time);            deleteHolder = (ViewGroup)view.findViewById(R.id.holder);        }    }    @Override    public void onItemClick(AdapterView<?> parent, View view, int position,            long id) {        Toast.makeText(this, "onItemClick position=" + position, 0).show();        }    @Override    public void onSlide(View view, int status) {        if (mLastSlideViewWithStatusOn != null && mLastSlideViewWithStatusOn != view) {            mLastSlideViewWithStatusOn.shrink();        }        if (status == SLIDE_STATUS_ON) {            mLastSlideViewWithStatusOn = (SlideView) view;        }    }    @Override    public void onClick(View v) {       switch (v.getId()) {case R.id.holder:break;default:break;}    }}

源码下载地址：http://download.csdn.net/detail/pcaxb/9117007

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