android framelayout 拖动时,界面压缩变形问题

      界面有一个布局,需要实现可以拖动的功能,布局里面有四个部分,分别还要可以点击,所以一开始参考了这个链接:http://blog.csdn.net/wangjia55/article/details/7458620,的确是可以实现,但我突然发现当这个拖动的布局拖动到界面的中间十字线的位置,都会出现压缩的原因,也百度谷歌了很久,发现没有人遇到类似的问题,使用view.layout界面又是刷新,布局会重新回到原点,这个方法也不可取,最后只能折中一下,使用view.setLayoutParams()的形式,对中间线的位置进行判断,当拖动到十字线的位置,立即改变位置,如下代码:

/** *  * @Title: fourChartTouchLister * @Description://4个左上角悬浮组件监听 * @param  * @return void * @throws   */private void fourChartTouchLister() {firstSupspendLine.setOnTouchListener(this);//同时添加点击事件,才能在return true时,响应拖动事件firstSupspendLine.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {}});firstSupspendLine__buyprice.setOnTouchListener(new OnTouchListener() {@Overridepublic boolean onTouch(View arg0, MotionEvent event) {return touchEventMethod(event, firstSupspendLine);}});secondSupspendLine.setOnTouchListener(this);//同时添加点击事件,才能在return true时,响应拖动事件secondSupspendLine.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {}});secondSupspendLine__buyprice.setOnTouchListener(new OnTouchListener() {@Overridepublic boolean onTouch(View arg0, MotionEvent event) {return touchEventMethod(event, secondSupspendLine);}});thirdSupspendLine.setOnTouchListener(this);//同时添加点击事件,才能在return true时,响应拖动事件thirdSupspendLine.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {}});thirdSupspendLine__buyprice.setOnTouchListener(new OnTouchListener() {@Overridepublic boolean onTouch(View arg0, MotionEvent event) {return touchEventMethod(event, thirdSupspendLine);}});fourSupspendLine.setOnTouchListener(this);//同时添加点击事件,才能在return true时,响应拖动事件fourSupspendLine.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {}});fourSupspendLine__buyprice.setOnTouchListener(new OnTouchListener() {@Overridepublic boolean onTouch(View arg0, MotionEvent event) {return touchEventMethod(event, fourSupspendLine);}});}/** * 监听左上方悬浮的控件 */@Overridepublic boolean onTouch(View v, MotionEvent event) {return touchEventMethod(event, v);}/** * 父布局和子控件的touch事件需要特别处理 *  * @param event * @param v * @return * @author qiulinhe * @createTime 2016年7月6日 上午9:54:32 */private boolean touchEventMethod(MotionEvent event, View v) {System.out.println("移动之后的高宽度" + webviewHeight + "===" + webviewWidth);int action = event.getAction();switch (action) {case MotionEvent.ACTION_DOWN:firstX = (int) event.getX();//按下的时候开始的x的位置lastX = (int) event.getRawX();lastY = (int) event.getRawY();isclick = false;//当按下的时候设置isclick为false，这时候可以响应点击事件startTime = System.currentTimeMillis();break;case MotionEvent.ACTION_UP:endTime = System.currentTimeMillis();//当从点击到弹起小于半秒的时候,则判断为点击,如果超过则不响应点击事件if ((endTime - startTime) > 0.2 * 1000L) {isclick = true;} else {isclick = false;}break;case MotionEvent.ACTION_POINTER_DOWN:break;case MotionEvent.ACTION_POINTER_UP:break;case MotionEvent.ACTION_MOVE:isclick = true;//当按钮被移动的时候设置isclick为trueint dx = (int) event.getRawX() - lastX;int dy = (int) event.getRawY() - lastY;int left = v.getLeft() + dx;int top = v.getTop() + dy;int right = v.getRight() + dx;int bottom = v.getBottom() + dy;if (left < 0) {left = 0;right = left + v.getWidth();}if (right > webviewWidth) {right = webviewWidth;left = right - v.getWidth();}//当竖向的中线,需要将位置移动,跳过中线的位置,防止布局压缩,//从右往左if ((left == webviewWidth / 2 + 20)|| (left > webviewWidth / 2 && (left < webviewWidth / 2 + 20) && right > webviewWidth / 2)) {right = (webviewWidth / 2) - 40;left = (webviewWidth / 2) - 40 - v.getWidth();} else if ((right == webviewWidth / 2 + 20)//从左往右拖动|| (right < webviewWidth / 2 && (right > webviewWidth / 2 - 20) && left < webviewWidth / 2)) {left = (webviewWidth / 2) + 20;right = (webviewWidth / 2) + 20 + v.getWidth();}//当竖向的中线,需要将位置移动if (left == webviewWidth / 2 && right > (webviewWidth / 2)) {right = (webviewWidth / 2);left = (webviewWidth / 2) - v.getWidth();} else if (right == webviewWidth / 2 && left < (webviewWidth / 2)) {left = (webviewWidth / 2);right = (webviewWidth / 2) + v.getWidth();}if (top < 0) {top = 0;bottom = top + firstSupspendLine.getHeight();}//当横向的中线,需要将位置移动,跳过中线的位置,防止布局压缩,//从下往上拖动if ((top == webviewHeight / 2 + 20)|| (top > webviewHeight / 2 && (top < webviewHeight / 2 + 20) && bottom > webviewHeight / 2)) {bottom = (webviewHeight / 2) - 40;top = (webviewHeight / 2) - 40 - v.getHeight();} else if ((bottom == webviewHeight / 2 + 20)//从上往下拖动|| (bottom < webviewHeight / 2 && (bottom > webviewHeight / 2 - 20) && top < webviewHeight / 2)) {top = (webviewHeight / 2) + 20;bottom = (webviewHeight / 2) + 20 + v.getHeight();}if (bottom > webviewHeight) {bottom = webviewHeight;top = bottom - v.getHeight();}RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams) v.getLayoutParams();layoutParams.leftMargin = left;//StaticContext.IFFULLSCREEN ? left : 0;//全屏时是否支持横向拖动layoutParams.topMargin = top;layoutParams.rightMargin = right;// StaticContext.IFFULLSCREEN ? right : 0;//全屏时是否支持横向拖动layoutParams.bottomMargin = bottom;v.setLayoutParams(layoutParams);//DocCaptain.getInstance().setSuspendLeft(left);//DocCaptain.getInstance().setSuspendTop(top);//DocCaptain.getInstance().setSuspendRight(right);//DocCaptain.getInstance().setSuspendBottom(bottom);//v.layout(left, top, right, bottom);lastX = (int) event.getRawX();lastY = (int) event.getRawY();break;}// v.invalidate();return isclick;}

     说的很笼统,如果有人遇到同样的问题,你就可以和我交流一下.上面的问题,还遇到父布局需要拖动,有父布局里面的子控件textview也需要监听点击事件和拖动事件的解决.