Android糾正滑動刪除只能點刪除不能點Item的修改

之前寫過一個類似IOS的左劃出現刪除，點擊刪除的博客，但是在後期的開發中，遇到了一些問題，光設計前端效果的話是沒有問題的，但是發現沒有Item的點擊，一個側滑的事件和點擊item的事件監聽衝突了。所以在此做出一定的修改，也找了很多資料來了解。最後實現了，既可以側滑刪除監聽，也可以Item點擊監聽。

這只是針對我的項目來寫出的東西，有些項目也許只需要側滑的刪除，所以沒有誰對誰錯。根據自己的需求來做吧。

實現後的效果圖：

那就開始上代碼了：

首先是封裝好的兩個類庫，一個是pulltorefresh的類庫，這個是下拉刷新的類庫，裏面封裝了下拉刷新的內容。

另一個就是swipemenulistview的類庫，這個就是側滑刪除的listview的類庫。

這倆類庫已經封裝好，大家可以直接複製代碼到制定的目錄。到時候寫的時候直接引用就可以了。

大家可以去資源下載地址下載這兩個類庫，方便大家的使用，下面這個連接進行下載：

點擊打開鏈接

關鍵的代碼還是我們自己的引用部分以及設計部分：

首先上我們的代碼，將兩個類庫結合使用，寫我們的PullToRefreshSwipeMenuListView.java：

import android.content.Context;
import android.os.AsyncTask;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.view.animation.DecelerateInterpolator;
import android.view.animation.Interpolator;
import android.widget.AbsListView;
import android.widget.AbsListView.OnScrollListener;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.Scroller;
import android.widget.TextView;

/**
 * Created by Administrator on 2016/2/27.
 */
public class PullToRefreshSwipeMenuListView extends ListView implements OnScrollListener {

    private static final int TOUCH_STATE_NONE = 0;
    private static final int TOUCH_STATE_X = 1;
    private static final int TOUCH_STATE_Y = 2;

    private int MAX_Y = 5;
    private int MAX_X = 3;
    private float mDownX;
    private float mDownY;
    private int mTouchState;
    private int mTouchPosition;
    private SwipeMenuLayout mTouchView;
    private OnSwipeListener mOnSwipeListener;

    private SwipeMenuCreator mMenuCreator;
    private OnMenuItemClickListener mOnMenuItemClickListener;
    private Interpolator mCloseInterpolator;
    private Interpolator mOpenInterpolator;

    private float mLastY = -1; // save event y
    private Scroller mScroller; // used for scroll back
    private OnScrollListener mScrollListener; // user's scroll listener

    // the interface to trigger refresh and load more.
    private IXListViewListener mListViewListener;

    // -- header view
    private PullToRefreshListHeader mHeaderView;
    // header view content, use it to calculate the Header's height. And hide it
    // when disable pull refresh.
    private RelativeLayout mHeaderViewContent;
    private TextView mHeaderTimeView;
    private int mHeaderViewHeight; // header view's height
    private boolean mEnablePullRefresh = true;
    private boolean mPullRefreshing = false; // is refreashing.

    // -- footer view
    private PullToRefreshListFooter mFooterView;
    private boolean mEnablePullLoad;
    private boolean mPullLoading;
    private boolean mIsFooterReady = false;
    private int mTotalItemCount;
    private int mScrollBack;
    private final static int SCROLLBACK_HEADER = 0;
    private final static int SCROLLBACK_FOOTER = 1;

    private final static int SCROLL_DURATION = 400;
    private final static int PULL_LOAD_MORE_DELTA = 50;
    private final static float OFFSET_RADIO = 1.8f;

    public PullToRefreshSwipeMenuListView(Context context) {
        super(context);
        init(context);
    }

    public PullToRefreshSwipeMenuListView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init(context);
    }

    public PullToRefreshSwipeMenuListView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init(context);
    }

    private void init(Context context) {
        mScroller = new Scroller(context, new DecelerateInterpolator());
        super.setOnScrollListener(this);
        // init header view
        mHeaderView = new PullToRefreshListHeader(context);
        mHeaderViewContent = (RelativeLayout) mHeaderView.findViewById(R.id.xlistview_header_content);
        mHeaderTimeView = (TextView) mHeaderView.findViewById(R.id.xlistview_header_time);
        addHeaderView(mHeaderView);

        // init footer view
        mFooterView = new PullToRefreshListFooter(context);

        // init header height
        mHeaderView.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                mHeaderViewHeight = mHeaderViewContent.getHeight();
                getViewTreeObserver().removeGlobalOnLayoutListener(this);
            }
        });
        MAX_X = dp2px(MAX_X);
        MAX_Y = dp2px(MAX_Y);
        mTouchState = TOUCH_STATE_NONE;
    }

    @Override
    public void setAdapter(ListAdapter adapter) {
        if (mIsFooterReady == false) {
            mIsFooterReady = true;
            addFooterView(mFooterView);
        }
        super.setAdapter(new SwipeMenuAdapter(getContext(), adapter) {
            @Override
            public void createMenu(SwipeMenu menu) {
                if (mMenuCreator != null) {
                    mMenuCreator.create(menu);
                }
            }

            @Override
            public void onItemClick(SwipeMenuView view, SwipeMenu menu, int index) {
                if (mOnMenuItemClickListener != null) {
                    mOnMenuItemClickListener.onMenuItemClick(view.getPosition(), menu, index);
                }
                if (mTouchView != null) {
                    mTouchView.smoothCloseMenu();
                }
            }
        });
    }

    public void setCloseInterpolator(Interpolator interpolator) {
        mCloseInterpolator = interpolator;
    }

    public void setOpenInterpolator(Interpolator interpolator) {
        mOpenInterpolator = interpolator;
    }

    public Interpolator getOpenInterpolator() {
        return mOpenInterpolator;
    }

    public Interpolator getCloseInterpolator() {
        return mCloseInterpolator;
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        return super.onInterceptTouchEvent(ev);
    }

    @Override
    public boolean onTouchEvent(MotionEvent ev) {
        if (mLastY == -1) {
            mLastY = ev.getRawY();
        }

        switch (ev.getAction()) {
            case MotionEvent.ACTION_DOWN:
                mLastY = ev.getRawY();

                int oldPos = mTouchPosition;
                mDownX = ev.getX();
                mDownY = ev.getY();
                mTouchState = TOUCH_STATE_NONE;

                mTouchPosition = pointToPosition((int) ev.getX(), (int) ev.getY());

                if (mTouchPosition == oldPos && mTouchView != null && mTouchView.isOpen()) {
                    mTouchState = TOUCH_STATE_X;
                    mTouchView.onSwipe(ev);
                    return true;
                }

                View view = getChildAt(mTouchPosition - getFirstVisiblePosition());

                if (mTouchView != null && mTouchView.isOpen()) {
                    mTouchView.smoothCloseMenu();
                    mTouchView = null;
                    return super.onTouchEvent(ev);
                }
                if (view instanceof SwipeMenuLayout) {
                    mTouchView = (SwipeMenuLayout) view;
                }
                if (mTouchView != null) {
                    mTouchView.onSwipe(ev);
                }

                break;
            case MotionEvent.ACTION_MOVE:
                final float deltaY = ev.getRawY() - mLastY;

                float dy = Math.abs((ev.getY() - mDownY));
                float dx = Math.abs((ev.getX() - mDownX));
                mLastY = ev.getRawY();

                if ((mTouchView == null || !mTouchView.isActive()) && Math.pow(dx, 2) / Math.pow(dy, 2) <= 3) {
                    if (getFirstVisiblePosition() == 0 && (mHeaderView.getVisiableHeight() > 0 || deltaY > 0)) {
                        // the first item is showing, header has shown or pull down.
                        updateHeaderHeight(deltaY / OFFSET_RADIO);
                        invokeOnScrolling();
                    } else if ((mFooterView.getBottomMargin() > 0 || deltaY < 0)) {
                        // last item, already pulled up or want to pull up.
                        updateFooterHeight(-deltaY / OFFSET_RADIO);
                    }
                }

                if (mTouchState == TOUCH_STATE_X) {
                    if (mTouchView != null) {
                        mTouchView.onSwipe(ev);
                    }
                    getSelector().setState(new int[] { 0 });
                    ev.setAction(MotionEvent.ACTION_CANCEL);
                    super.onTouchEvent(ev);
                    return true;
                } else if (mTouchState == TOUCH_STATE_NONE) {
                    if (Math.abs(dy) > MAX_Y) {
                        mTouchState = TOUCH_STATE_Y;
                    } else if (dx > MAX_X) {
                        mTouchState = TOUCH_STATE_X;
                        if (mOnSwipeListener != null) {
                            mOnSwipeListener.onSwipeStart(mTouchPosition);
                        }
                    }
                }
                break;
            case MotionEvent.ACTION_UP:
                mLastY = -1; // reset
                if (mEnablePullLoad && mFooterView.getHeight()>0 && mFooterView.getBottomMargin() > PULL_LOAD_MORE_DELTA) {
                    startLoadMore();
                    resetFooterHeight();
                    new ResetHeaderHeightTask().execute();
                } else if (getFirstVisiblePosition() == 0) {
                    // invoke refresh
                    if (mEnablePullRefresh && mHeaderView.getVisiableHeight() > mHeaderViewHeight) {
                        mPullRefreshing = true;
                        mHeaderView.setState(PullToRefreshListHeader.STATE_REFRESHING);
                        if (mListViewListener != null) {
                            mListViewListener.onRefresh();
                        }
                    }
                    resetHeaderHeight();
                }

                if (mTouchState == TOUCH_STATE_X) {
                    if (mTouchView != null) {
                        mTouchView.onSwipe(ev);
                        if (!mTouchView.isOpen()) {
                            mTouchPosition = -1;
                            mTouchView = null;
                        }
                    }
                    if (mOnSwipeListener != null) {
                        mOnSwipeListener.onSwipeEnd(mTouchPosition);
                    }
                    ev.setAction(MotionEvent.ACTION_CANCEL);
                    super.onTouchEvent(ev);
                    return true;
                }
                break;
        }
        return super.onTouchEvent(ev);
    }

    class ResetHeaderHeightTask extends AsyncTask<Void, Void, Void> {
        protected Void doInBackground(Void... params) {
            try {
                Thread.sleep(400);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            return null;
        }

        protected void onPostExecute(Void result) {
            mPullRefreshing = false;
            mHeaderView.setState(PullToRefreshListHeader.STATE_NORMAL);
            resetHeaderHeight();

        }
    }

    public void smoothOpenMenu(int position) {
        if (position >= getFirstVisiblePosition() && position <= getLastVisiblePosition()) {
            View view = getChildAt(position - getFirstVisiblePosition());
            if (view instanceof SwipeMenuLayout) {
                mTouchPosition = position;
                if (mTouchView != null && mTouchView.isOpen()) {
                    mTouchView.smoothCloseMenu();
                }
                mTouchView = (SwipeMenuLayout) view;
                mTouchView.smoothOpenMenu();
            }
        }
    }

    private int dp2px(int dp) {
        return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp,
                getContext().getResources().getDisplayMetrics());
    }

    public void setMenuCreator(SwipeMenuCreator menuCreator) {
        this.mMenuCreator = menuCreator;
    }

    public void setOnMenuItemClickListener(OnMenuItemClickListener onMenuItemClickListener) {
        this.mOnMenuItemClickListener = onMenuItemClickListener;
    }

    public void setOnSwipeListener(OnSwipeListener onSwipeListener) {
        this.mOnSwipeListener = onSwipeListener;
    }

    public static interface OnMenuItemClickListener {
        void onMenuItemClick(int position, SwipeMenu menu, int index);
    }

    public static interface OnSwipeListener {
        void onSwipeStart(int position);

        void onSwipeEnd(int position);
    }

    public void setPullRefreshEnable(boolean enable) {
        mEnablePullRefresh = enable;
        if (!mEnablePullRefresh) { // disable, hide the content
            mHeaderViewContent.setVisibility(View.INVISIBLE);
        } else {
            mHeaderViewContent.setVisibility(View.VISIBLE);
        }
    }

    /**
     * enable or disable pull up load more feature.
     *
     * @param enable
     */
    public void setPullLoadEnable(boolean enable) {
        mEnablePullLoad = enable;
        if (!mEnablePullLoad) {
            mFooterView.hide();
            mFooterView.setOnClickListener(null);
        } else {
            mPullLoading = false;
            mFooterView.show();
            mFooterView.setState(PullToRefreshListFooter.STATE_NORMAL);
            // both "pull up" and "click" will invoke load more.
            mFooterView.setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View v) {
                    startLoadMore();
                }
            });
        }
    }

    /**
     * stop refresh, reset header view.
     */
    public void stopRefresh() {
        if (mPullRefreshing == true) {
            mPullRefreshing = false;
            resetHeaderHeight();
        }
    }

    /**
     * stop load more, reset footer view.
     */
    public void stopLoadMore() {
        if (mPullLoading == true) {
            mPullLoading = false;
            mFooterView.setState(PullToRefreshListFooter.STATE_NORMAL);
        }
    }

    /**
     * set last refresh time
     *
     * @param time
     */
    public void setRefreshTime(String time) {
        mHeaderTimeView.setText(time);
    }

    private void invokeOnScrolling() {
        if (mScrollListener instanceof OnXScrollListener) {
            OnXScrollListener l = (OnXScrollListener) mScrollListener;
            l.onXScrolling(this);
        }
    }

    private void updateHeaderHeight(float delta) {
        mHeaderView.setVisiableHeight((int) delta + mHeaderView.getVisiableHeight());
        if (mEnablePullRefresh && !mPullRefreshing) {
            if (mHeaderView.getVisiableHeight() > mHeaderViewHeight) {
                mHeaderView.setState(PullToRefreshListHeader.STATE_READY);
            } else {
                mHeaderView.setState(PullToRefreshListHeader.STATE_NORMAL);
            }
        }
        setSelection(0); // scroll to top each time
    }

    /**
     * reset header view's height.
     */
    private void resetHeaderHeight() {
        int height = mHeaderView.getVisiableHeight();
        if (height == 0) // not visible.
            return;
        // refreshing and header isn't shown fully. do nothing.
        if (mPullRefreshing && height <= mHeaderViewHeight) {
            return;
        }
        int finalHeight = 0; // default: scroll back to dismiss header.
        // is refreshing, just scroll back to show all the header.
        if (mPullRefreshing && height > mHeaderViewHeight) {
            finalHeight = mHeaderViewHeight;
        }
        mScrollBack = SCROLLBACK_HEADER;
        mScroller.startScroll(0, height, 0, finalHeight - height, SCROLL_DURATION);
        // trigger computeScroll
        invalidate();
    }

    private void updateFooterHeight(float delta) {
        int height = mFooterView.getBottomMargin() + (int) delta;
        if (mEnablePullLoad && !mPullLoading) {
            if (height > PULL_LOAD_MORE_DELTA) { // height enough to invoke load
                // more.
                mFooterView.setState(PullToRefreshListFooter.STATE_READY);
            } else {
                mFooterView.setState(PullToRefreshListFooter.STATE_NORMAL);
            }
        }
        mFooterView.setBottomMargin(height);

        // setSelection(mTotalItemCount - 1); // scroll to bottom
    }

    private void resetFooterHeight() {
        int bottomMargin = mFooterView.getBottomMargin();
        if (bottomMargin > 0) {
            mScrollBack = SCROLLBACK_FOOTER;
            mScroller.startScroll(0, bottomMargin, 0, -bottomMargin, SCROLL_DURATION);
            invalidate();
        }
    }

    private void startLoadMore() {
        mPullLoading = true;
        mFooterView.setState(PullToRefreshListFooter.STATE_LOADING);
        if (mListViewListener != null) {
            mListViewListener.onLoadMore();
        }
    }

    @Override
    public void computeScroll() {
        if (mScroller.computeScrollOffset()) {
            if (mScrollBack == SCROLLBACK_HEADER) {
                mHeaderView.setVisiableHeight(mScroller.getCurrY());
            } else {
                mFooterView.setBottomMargin(mScroller.getCurrY());
            }
            postInvalidate();
            invokeOnScrolling();
        }
        super.computeScroll();
    }

    @Override
    public void setOnScrollListener(OnScrollListener l) {
        mScrollListener = l;
    }

    @Override
    public void onScrollStateChanged(AbsListView view, int scrollState) {
        if (mScrollListener != null) {
            mScrollListener.onScrollStateChanged(view, scrollState);
        }
    }

    @Override
    public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
        // send to user's listener
        mTotalItemCount = totalItemCount;
        if (mScrollListener != null) {
            mScrollListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
        }
    }

    public void setXListViewListener(IXListViewListener l) {
        mListViewListener = l;
    }

    /**
     * you can listen ListView.OnScrollListener or this one. it will invoke
     * onXScrolling when header/footer scroll back.
     */
    public interface OnXScrollListener extends OnScrollListener {
        public void onXScrolling(View view);
    }

    /**
     * implements this interface to get refresh/load more event.
     */
    public interface IXListViewListener {
        public void onRefresh();

        public void onLoadMore();
    }
}

這部分封裝好以後，就可以在我們的xml中進行引用了：

listview的佈局部分：

<com.view.PullToRefreshSwipeMenuListView
    android:id="@+id/list_address"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_below="@id/toolbar"
    android:layout_marginTop="10dp"
    android:divider="@null">

</com.view.PullToRefreshSwipeMenuListView>

引用成功後，需要的就是我們的Adapter進行適配：

import android.content.Context;
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 java.util.List;
import java.util.Map;

/**
 * Created by Administrator on 2016/8/5 0005.
 */
public class MyAddressAdapter extends BaseAdapter {

    private Context context;
    private List<Map<String, Object>> address;

    public MyAddressAdapter(Context context, List<Map<String, Object>> address) {
        this.context = context;
        this.address = address;
    }

    @Override
    public int getCount() {
        if (address == null) {
            return 0;
        } else {
            return address.size();
        }
    }

    @Override
    public Object getItem(int position) {
        if (address == null) {
            return 0;
        } else {
            return address.get(position);
        }
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View contentView, ViewGroup arg2) {
        ViewHolder holder = null;
        if (contentView == null) {
            holder = new ViewHolder();
            contentView = LayoutInflater.from(context).inflate(R.layout.list_address_item, null);
            holder.img_first = (ImageView) contentView.findViewById(R.id.img_first);
            holder.text_name = (TextView) contentView.findViewById(R.id.text_name);
            holder.text_phone = (TextView) contentView.findViewById(R.id.text_phone);
            holder.text_address = (TextView) contentView.findViewById(R.id.text_address);
            contentView.setTag(holder);
        } else {
            holder = (ViewHolder) contentView.getTag();
        }
        holder.text_name.setText((String) address.get(position).get("title"));
        return contentView;
    }

    class ViewHolder {
        public TextView text_phone;
        public TextView text_address;
        public TextView text_name;
        ImageView img_first;
    }
}

Adapter中的涉及到的佈局是我們的list_item的佈局，然後對要進行修改的控件進行聲明並且獲取資源等。關於list_item中的佈局就不再給出了。每個人的item是不一樣的。adapter根據自己的需求來弄。完事都已經具備了，就等我們在自己需要的Activity中進行使用了。如下：

private List<Map<String, Object>> address;
private PullToRefreshSwipeMenuListView mListView;
private MyAddressAdapter addressAdapter;

聲明我們需要的參數，然後在我們的onCreate中：

/**
 * 對listview的處理適配
 * */
mListView = (PullToRefreshSwipeMenuListView) findViewById(R.id.list_address);
afterPost();

然後就是我們的afterPost()了：

private void afterPost() {
    address = getMessage();
    addressAdapter = new MyAddressAdapter(this, address);
    mListView.setAdapter(addressAdapter);
    mListView.setPullRefreshEnable(true);
    mListView.setPullLoadEnable(true);
    mListView.setXListViewListener(this);
    // step 1. 創建刪除按鈕
    SwipeMenuCreator creator = new SwipeMenuCreator() {
        @Override
        public void create(SwipeMenu menu) {
            // create "delete" item
            SwipeMenuItem deleteItem = new SwipeMenuItem(getApplicationContext());
            // set item background
            deleteItem.setBackground(new ColorDrawable(Color.rgb(222, 102, 84)));
            // set item width
            deleteItem.setWidth(dp2px(60));
            deleteItem.setTitle("刪除");
            deleteItem.setTitleColor(Color.rgb(255, 255, 255));
            deleteItem.setTitleSize(16);
            // add to menu
            menu.addMenuItem(deleteItem);
        }
    };
    // set creator
    mListView.setMenuCreator(creator);
    // step 2. 刪除
    mListView.setOnMenuItemClickListener(new PullToRefreshSwipeMenuListView.OnMenuItemClickListener() {
        @Override
        public void onMenuItemClick(int position, SwipeMenu menu, int index) {
            switch (index) {
                case 0:
                    Toast.makeText(getApplicationContext(), "點擊刪除", Toast.LENGTH_SHORT).show();
                    break;
            }
        }
    });
    // set SwipeListener
    mListView.setOnSwipeListener(new PullToRefreshSwipeMenuListView.OnSwipeListener() {
        @Override
        public void onSwipeStart(int position) {
            // swipe start
        }

        @Override
        public void onSwipeEnd(int position) {
            // swipe end
        }
    });
    // test item click
    mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            //position 如果有headview  position =0 的第一個爲headview
            //id：如果有headview或者footview  則這兩個view的id爲-1
            if (id != -1) {
                Toast.makeText(getApplicationContext(), "點擊的第" + position + "個Item", Toast.LENGTH_SHORT).show();
            } else {
                Toast.makeText(getApplicationContext(), "有headView", Toast.LENGTH_SHORT).show();
            }
        }
    });
}

/**
 * 初始化item信息
 */
private List<Map<String, Object>> getMessage() {
    List<Map<String, Object>> listItems = new ArrayList<Map<String, Object>>();
    for (int i = 0; i < 5; i++) {
        Map<String, Object> map = new HashMap<String, Object>();
          map.put("", "");
          map.put("image", imgeIDs[i]);               //圖片資源
        map.put("title", "恆聖" + i);              //title
          map.put("info", goodsNames[i]);     //物品名稱
          map.put("detail", goodsDetails[i]); //物品詳情
        listItems.add(map);
    }
    return listItems;
}


private int dp2px(int dp) {
    return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, getResources().getDisplayMetrics());
}

這樣就實現了我們的側滑刪除並且點擊Item的效果了。

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https://yachay.unat.edu.pe/blog/index.php?comment_area=format_blog&comment_component=blog&comment_co

linux以太網驅動總結