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finish the edit wish function, supporting drag listview item
1 parent 96982e7 commit 439cd8f

20 files changed

Lines changed: 683 additions & 38 deletions

‎baseworld/res/drawable-hdpi/app_drag.png‎

636 Bytes
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‎baseworld/res/layout/drag_list_item.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<!-- 强调一点，使用相对布局 -->
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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_width="fill_parent"
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android:layout_height="wrap_content">
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<TextView
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android:id="@+id/drag_list_item_text"
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android:layout_width="wrap_content"
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android:layout_height="@dimen/drag_item_normal_height"
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android:paddingLeft="5dip"
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android:layout_alignParentLeft="true"
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android:layout_centerVertical="true"
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android:gravity="center_vertical"/>
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<ImageView android:id="@+id/drag_list_item_image"
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android:src="@drawable/app_drag"
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android:layout_alignParentRight="true"
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android:layout_centerVertical="true"
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android:layout_width="wrap_content"
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android:layout_height="@dimen/drag_item_normal_height"/>
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</RelativeLayout>

‎baseworld/res/values/dimens.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<resources>
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<dimen name="drag_item_normal_height">48dip</dimen>
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</resources>

‎baseworld/src/com/tianxia/lib/baseworld/widget/DragListAdapter.java‎

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package com.tianxia.lib.baseworld.widget;
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import android.content.Context;
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import android.widget.ArrayAdapter;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.LayoutInflater;
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import android.widget.TextView;
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import java.util.List;
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import com.tianxia.lib.baseworld.R;
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public class DragListAdapter<T extends DragListAdapter.IDragable> extends ArrayAdapter<T> {
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public DragListAdapter(Context context, List<T> objects) {
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super(context, 0, objects);
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}
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@Override
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public View getView(int position, View convertView, ViewGroup parent) {
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View view = convertView;
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if ( view == null) {
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//加载列表项模板
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view = LayoutInflater.from(getContext()).inflate(R.layout.drag_list_item, null);
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}
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TextView textView = (TextView)view.findViewById(R.id.drag_list_item_text);
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textView.setText(getItem(position).getDisplay());
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return view;
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}
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public interface IDragable {
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String getDisplay();
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}
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}

‎baseworld/src/com/tianxia/lib/baseworld/widget/DragListView.java‎

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package com.tianxia.lib.baseworld.widget;
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import android.content.Context;
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import android.graphics.Bitmap;
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import android.graphics.PixelFormat;
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import android.util.AttributeSet;
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import android.view.Gravity;
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import android.view.LayoutInflater;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.ViewConfiguration;
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import android.view.ViewGroup;
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import android.view.WindowManager;
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import android.widget.Adapter;
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import android.widget.AdapterView;
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import android.widget.ArrayAdapter;
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import android.widget.ImageView;
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import android.widget.ListView;
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import android.widget.SimpleAdapter;
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import android.widget.TextView;
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import com.tianxia.lib.baseworld.R;
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import java.util.List;
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/**
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* 拖拽ListView
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*/
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public class DragListView extends ListView {
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private int mScaledTouchSlop;//判断滑动的一个距离,scroll的时候会用到
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private ImageView mDragImageView;//被拖拽项的影像，其实就是一个ImageView
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private int mDragSrcPosition;//手指拖动项原始在列表中的位置
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private int mDragPosition;//手指拖动的时候，当前拖动项在列表中的位置
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private int mDragPoint;//在当前数据项中的位置
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private int mDragOffset;//当前视图和屏幕的距离(这里只使用了y方向上)
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private WindowManager mWindowManager;//windows窗口控制类
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private WindowManager.LayoutParams mWindowParams;//用于控制拖拽项的显示的参数
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private int mUpScrollBounce;//拖动的时候，开始向上滚动的边界
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private int mDownScrollBounce;//拖动的时候，开始向下滚动的边界
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public DragListView(Context context, AttributeSet attrs) {
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super(context, attrs);
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mScaledTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();
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}
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@Override
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public boolean onInterceptTouchEvent(MotionEvent ev) {
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//捕获down事件
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if (ev.getAction() == MotionEvent.ACTION_DOWN) {
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int x = (int)ev.getX();
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int y = (int)ev.getY();
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//选中的数据项位置，使用ListView自带的pointToPosition(x, y)方法
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mDragSrcPosition = mDragPosition = pointToPosition(x, y);
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//如果是无效位置(超出边界，分割线等位置)，返回
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if (mDragPosition == AdapterView.INVALID_POSITION) {
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return super.onInterceptTouchEvent(ev);
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}
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//获取选中项View
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//getChildAt(int position)显示display在界面的position位置的View
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//getFirstVisiblePosition()返回第一个display在界面的view在adapter的位置position，可能是0，也可能是4
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ViewGroup itemView = (ViewGroup) getChildAt(mDragPosition-getFirstVisiblePosition());
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//mDragPoint点击位置在点击View内的相对位置
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//mDragOffset屏幕位置和当前ListView位置的偏移量，这里只用到y坐标上的值
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//这两个参数用于后面拖动的开始位置和移动位置的计算
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mDragPoint = y - itemView.getTop();
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mDragOffset = (int) (ev.getRawY() - y);
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//获取右边的拖动图标，这个对后面分组拖拽有妙用
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View dragger = itemView.findViewById(R.id.drag_list_item_image);
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//如果在右边位置（拖拽图片左边的20px的右边区域）
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if (dragger != null && x > dragger.getLeft()-20) {
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//准备拖动
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//初始化拖动时滚动变量
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//scaledTouchSlop定义了拖动的偏差位(一般+-10)
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//mUpScrollBounce当在屏幕的上部(上面1/3区域)或者更上的区域，执行拖动的边界，mDownScrollBounce同理定义
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mUpScrollBounce = Math.min(y - mScaledTouchSlop, getHeight()/3);
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mDownScrollBounce = Math.max(y + mScaledTouchSlop, getHeight()*2/3);
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//设置Drawingcache为true，获得选中项的影像bm，就是后面我们拖动的哪个头像
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itemView.setDrawingCacheEnabled(true);
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Bitmap bm = Bitmap.createBitmap(itemView.getDrawingCache());
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//准备拖动影像(把影像加入到当前窗口，并没有拖动，拖动操作我们放在onTouchEvent()的move中执行)
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startDrag(bm, y);
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}
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return false;
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}
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return super.onInterceptTouchEvent(ev);
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}
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/*
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* 触摸事件
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* */
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@Override
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public boolean onTouchEvent(MotionEvent ev) {
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//如果dragmageView为空，说明拦截事件中已经判定仅仅是点击，不是拖动，返回
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//如果点击的是无效位置，返回，需要重新判断
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if (mDragImageView != null && mDragPosition != INVALID_POSITION) {
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int action = ev.getAction();
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switch(action){
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case MotionEvent.ACTION_UP:
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int upY = (int)ev.getY();
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//释放拖动影像
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stopDrag();
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//放下后，判断位置，实现相应的位置删除和插入
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onDrop(upY);
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break;
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case MotionEvent.ACTION_MOVE:
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int moveY = (int)ev.getY();
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//拖动影像
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onDrag(moveY);
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break;
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default:break;
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}
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return true;
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}
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//这个返回值能够实现selected的选中效果，如果返回true则无选中效果
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return super.onTouchEvent(ev);
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}
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/**
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* * 准备拖动，初始化拖动项的图像
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* * @param bm
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* * @param y
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* */
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public void startDrag(Bitmap bm ,int y){
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//释放影像，在准备影像的时候，防止影像没释放，每次都执行一下
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stopDrag();
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mWindowParams = new WindowManager.LayoutParams();
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//从上到下计算y方向上的相对位置，
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mWindowParams.gravity = Gravity.TOP;
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mWindowParams.x = 0;
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mWindowParams.y = y - mDragPoint + mDragOffset;
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mWindowParams.width = WindowManager.LayoutParams.WRAP_CONTENT;
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mWindowParams.height = WindowManager.LayoutParams.WRAP_CONTENT;
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//下面这些参数能够帮助准确定位到选中项点击位置，照抄即可
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mWindowParams.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
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| WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE
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| WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
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| WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;
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mWindowParams.format = PixelFormat.TRANSLUCENT;
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mWindowParams.windowAnimations = 0;
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//把影像ImagView添加到当前视图中
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ImageView imageView = new ImageView(getContext());
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imageView.setImageBitmap(bm);
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mWindowManager = (WindowManager)getContext().getSystemService("window");
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mWindowManager.addView(imageView, mWindowParams);
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//把影像ImageView引用到变量drawImageView，用于后续操作(拖动，释放等等)
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mDragImageView = imageView;
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}
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/**
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* * 停止拖动，去除拖动项的头像
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* */
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public void stopDrag(){
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if (mDragImageView != null) {
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mWindowManager.removeView(mDragImageView);
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mDragImageView = null;
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}
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}
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/**
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* * 拖动执行，在Move方法中执行
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* * @param y
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* */
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public void onDrag(int y){
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if (mDragImageView != null) {
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mWindowParams.alpha = 0.8f;
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mWindowParams.y = y - mDragPoint + mDragOffset;
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mWindowManager.updateViewLayout(mDragImageView, mWindowParams);
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}
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//为了避免滑动到分割线的时候，返回-1的问题
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int tempPosition = pointToPosition(0, y);
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if (tempPosition != INVALID_POSITION) {
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mDragPosition = tempPosition;
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}
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//滚动
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int scrollHeight = 0;
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if (y < mUpScrollBounce) {
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scrollHeight = 8;//定义向上滚动8个像素，如果可以向上滚动的话
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} else if (y > mDownScrollBounce){
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scrollHeight = -8;//定义向下滚动8个像素，，如果可以向上滚动的话
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}
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if (scrollHeight != 0) {
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//真正滚动的方法setSelectionFromTop()
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setSelectionFromTop(mDragPosition, getChildAt(mDragPosition-getFirstVisiblePosition()).getTop()+scrollHeight);
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}
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}
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/*
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* 拖动放下的时候
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* @param y
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* */
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public void onDrop(int y){
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//获取放下位置在数据集合中position
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//定义临时位置变量为了避免滑动到分割线的时候，返回-1的问题，如果为-1，则不修改mDragPosition的值，急需执行，达到跳过无效位置的效果
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int tempPosition = pointToPosition(0, y);
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if (tempPosition != INVALID_POSITION) {
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mDragPosition = tempPosition;
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}
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//超出边界处理
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if (y < getChildAt(0).getTop()) {
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//超出上边界，设为最小值位置0
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mDragPosition = 0;
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} else if (y > getChildAt(getChildCount()-1).getBottom()) {
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//超出下边界，设为最大值位置，注意哦，如果大于可视界面中最大的View的底部则是越下界，所以判断中用getChildCount()方法
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//但是最后一项在数据集合中的position是getAdapter().getCount()-1，这点要区分清除
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mDragPosition = getAdapter().getCount() - 1;
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}
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//数据更新
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if (mDragPosition >= 0 && mDragPosition < getAdapter().getCount()) {
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if (mDropListener != null) {
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mDropListener.onDrop(mDragSrcPosition, mDragPosition);
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}
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}
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}
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//set the drop listener
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public interface OnDropListener {
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void onDrop(int srcPosition, int destPosition);
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}
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private OnDropListener mDropListener = null;
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public void setDropListener (OnDropListener listener) {
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mDropListener = listener;
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}
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}

‎baseworld/src/com/tianxia/lib/baseworld/widget/TagCloudInfo.java‎

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public class TagCloudInfo {
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public long _id;
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public String title;
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public int sort;
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public Rect rect;
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public int textSize;
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public int color;

‎baseworld/src/com/tianxia/lib/baseworld/widget/TagCloudView.java‎

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mPaint.setAntiAlias(true);
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mRandom = new Random();
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setTagList();
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}
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public void setTagList() {
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String[] result = {"坚持跑步!",
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"多喝水!",
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"早点睡觉，不熬夜!",
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"吃早餐!",
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"眼睛多转一转!",
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"戒烟戒酒！",
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"勤洗脸洗头洗澡！",
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"少坐着",
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"少坐着，多走走，常舒展运动一下",
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"开心就好",
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"给自己加油",
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"就是爱音乐",
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"拒绝懒惰的借口",
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"每天都是新的一天，微笑！",
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"保持居住环境清洁"};
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mTagClouds = new ArrayList<TagCloudInfo>();
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TagCloudInfo tagCloudInfo = null;
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for (String str : result) {
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tagCloudInfo = new TagCloudInfo();
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tagCloudInfo.title = str;
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mTagClouds.add(tagCloudInfo);
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}
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public void setTagList(List<TagCloudInfo> dataSource) {
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mTagClouds = dataSource;
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}
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public List<TagCloudInfo> getTagList() {
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return mTagClouds;
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}
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@Override
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@Override
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public void onDraw(Canvas canvas) {
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if (mTagClouds == null) {
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return;
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}
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mWidth = getWidth();
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mHeight = getHeight();
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}
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}
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}
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public void refresh() {
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mFirstDraw = true;
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}
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}

‎healthworld/AndroidManifest.xml‎

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<!--以下属性为分发渠道ID,编码表参见本文档末附表-->
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<meta-data android:name="WAPS_PID" android:value="WAPS" />
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<activity android:name="com.tianxia.lib.baseworld.main.MainTabFrame"
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android:windowSoftInputMode="adjustPan"
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android:screenOrientation="portrait">
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<intent-filter >
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<action android:name="android.intent.action.MAIN" />
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<activity android:name=".favorite.FavoriteTabActivity"
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android:screenOrientation="portrait">
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</activity>
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<activity android:name=".favorite.FavoriteEditActivity"
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android:screenOrientation="portrait">
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</activity>
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<activity android:name=".setting.SettingTabActivity"
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android:screenOrientation="portrait">
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</activity>

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