android tablayout重新排序以及拖动选择标签

package com.zqy.mygridview; import android.content.Context; import android.graphics.Bitmap; import android.graphics.PixelFormat; import android.os.Vibrator; import android.util.AttributeSet; import android.util.Log; import android.view.Gravity; import android.view.MotionEvent; import android.view.View; import android.view.ViewGroup; import android.view.WindowManager; import android.view.animation.Animation; import android.view.animation.Animation.AnimationListener; import android.view.animation.TranslateAnimation; import android.widget.AdapterView; import android.widget.GridView; import android.widget.ImageView; import android.widget.TextView; import com.zqy.myfloatview.R; public class DragGrid extends GridView { /** 点击时候的X位置 */ public int downX; /** 点击时候的Y位置 */ public int downY; /** 点击时候对应整个界面的X位置 */ public int windowX; /** 点击时候对应整个界面的Y位置 */ public int windowY; /** 屏幕上的X */ private int win_view_x; /** 屏幕上的Y*/ private int win_view_y; /** 拖动的里x的距离 */ int dragOffsetX; /** 拖动的里Y的距离 */ int dragOffsetY; /** 长按时候对应postion */ public int dragPosition; /** Up后对应的ITEM的Position */ private int dropPosition; /** 开始拖动的ITEM的Position*/ private int startPosition; /** item高 */ private int itemHeight; /** item宽 */ private int itemWidth; /** 拖动的时候对应ITEM的VIEW */ private View dragImageView = null; /** 长按的时候ITEM的VIEW*/ private ViewGroup dragItemView = null; /** WindowManager管理器 */ private WindowManager windowManager = null; /** */ private WindowManager.LayoutParams windowParams = null; /** item总量*/ private int itemTotalCount; /** 一行的ITEM数量*/ private int nColumns = 4; /** 行数 */ private int nRows; /** 剩余部分 */ private int Remainder; /** 是否在移动 */ private boolean isMoving = false; /** */ private int holdPosition; /** 拖动的时候放大的倍数 */ private double dragScale = 1.2D; /** 震动器 */ private Vibrator mVibrator; /** 每个ITEM之间的水平间距 */ private int mHorizontalSpacing = 15; /** 每个ITEM之间的竖直间距 */ private int mVerticalSpacing = 15; /* 移动时候最后个动画的ID */ private String LastAnimationID; private OnMyItemLongClickListener onMyItemLongClickListener; public OnMyItemLongClickListener getOnMyItemLongClickListener() { return onMyItemLongClickListener; } public void setOnMyItemLongClickListener(OnMyItemLongClickListener onMyItemLongClickListener) { this.onMyItemLongClickListener = onMyItemLongClickListener; } interface OnMyItemLongClickListener { void OnItemLongClick(AdapterView<?> parent, View view, int position, long id); } public DragGrid(Context context) { super(context); init(context); } public DragGrid(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); init(context); } public DragGrid(Context context, AttributeSet attrs) { super(context, attrs); init(context); } public void init(Context context){ mVibrator = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE); //将布局文件中设置的间距dip转为px mHorizontalSpacing = DataTools.dip2px(context, mHorizontalSpacing); } @Override public boolean onInterceptTouchEvent(MotionEvent ev) { // TODO Auto-generated method stub if (ev.getAction() == MotionEvent.ACTION_DOWN) { downX = (int) ev.getX(); downY = (int) ev.getY(); windowX = (int) ev.getX(); windowY = (int) ev.getY(); setOnItemClickListener(ev); } return super.onInterceptTouchEvent(ev); } @Override public boolean onTouchEvent(MotionEvent ev) { // TODO Auto-generated method stub boolean bool = true; if (dragImageView != null && dragPosition != AdapterView.INVALID_POSITION) { // 移动时候的对应x,y位置 bool = super.onTouchEvent(ev); int x = (int) ev.getX(); int y = (int) ev.getY(); switch (ev.getAction()) { case MotionEvent.ACTION_DOWN: downX = (int) ev.getX(); windowX = (int) ev.getX(); downY = (int) ev.getY(); windowY = (int) ev.getY(); break; case MotionEvent.ACTION_MOVE: onDrag(x, y ,(int) ev.getRawX() , (int) ev.getRawY()); if (!isMoving){ OnMove(x, y); } if (pointToPosition(x, y) != AdapterView.INVALID_POSITION){ break; } break; case MotionEvent.ACTION_UP: stopDrag(); onDrop(x, y); requestDisallowInterceptTouchEvent(false); break; default: break; } } return super.onTouchEvent(ev); } /** 在拖动的情况 */ private void onDrag(int x, int y , int rawx , int rawy) { if (dragImageView != null) { windowParams.alpha = 0.6f; // windowParams.x = rawx - itemWidth / 2; // windowParams.y = rawy - itemHeight / 2; windowParams.x = rawx - win_view_x; windowParams.y = rawy - win_view_y; windowManager.updateViewLayout(dragImageView, windowParams); } } /** 在松手下放的情况 */ private void onDrop(int x, int y) { // 根据拖动到的x,y坐标获取拖动位置下方的ITEM对应的POSTION int tempPostion = pointToPosition(x, y); // if (tempPostion != AdapterView.INVALID_POSITION) { dropPosition = tempPostion; DragAdapter mDragAdapter = (DragAdapter) getAdapter(); //显示刚拖动的ITEM mDragAdapter.setShowDropItem(true); //刷新适配器，让对应的ITEM显示 mDragAdapter.notifyDataSetChanged(); // } } /** * 长按点击监听 * @param ev */ public void setOnItemClickListener(final MotionEvent ev) { setOnItemLongClickListener(new OnItemLongClickListener() { @Override public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) { if(null!=onMyItemLongClickListener){ onMyItemLongClickListener.OnItemLongClick(parent,view,position,id); } int x = (int) ev.getX();// 长安事件的X位置 int y = (int) ev.getY();// 长安事件的y位置 startPosition = position;// 第一次点击的postion dragPosition = position; if (startPosition <= 0) {//第0个位置不能移动 return false; } ViewGroup dragViewGroup = (ViewGroup) getChildAt(dragPosition - getFirstVisiblePosition()); TextView dragTextView = (TextView)dragViewGroup.findViewById(R.id.text_item); dragTextView.setSelected(true); dragTextView.setEnabled(false); itemHeight = dragViewGroup.getHeight(); itemWidth = dragViewGroup.getWidth(); itemTotalCount = DragGrid.this.getCount(); int row = itemTotalCount / nColumns;// 算出行数 Remainder = (itemTotalCount % nColumns);// 算出最后一行多余的数量 if (Remainder != 0) { nRows = row + 1; } else { nRows = row; } // 如果特殊的这个不等于拖动的那个,并且不等于-1 if (dragPosition != AdapterView.INVALID_POSITION) { // 释放的资源使用的绘图缓存。如果你调用buildDrawingCache()手动没有调用setDrawingCacheEnabled(真正的),你应该清理缓存使用这种方法。 win_view_x = windowX - dragViewGroup.getLeft();//VIEW相对自己的X，半斤 win_view_y = windowY - dragViewGroup.getTop();//VIEW相对自己的y，半斤 dragOffsetX = (int) (ev.getRawX() - x);//手指在屏幕的上X位置-手指在控件中的位置就是距离最左边的距离 dragOffsetY = (int) (ev.getRawY() - y);//手指在屏幕的上y位置-手指在控件中的位置就是距离最上边的距离 dragItemView = dragViewGroup; dragViewGroup.destroyDrawingCache(); dragViewGroup.setDrawingCacheEnabled(true); Bitmap dragBitmap = Bit