Android的多图像缩放移动问题 [英] Android Multiple image move resizing issue

问题描述

我想移动旋转和调整在我的Andr​​oid应用程序的图像中，我发现从这个计算器code和它完美对我要求工作....但现在我需要移动两个图像所以这个code将复制第一个图像的动作时，我切换到第二图像..
1），我该怎么办？这就是
2）我尝试添加单独的触摸监听器这两个图像，但没有图像根本没有移动

  iv_choose_hats =（ImageView的）findViewById（R.id.iv_chooseHats）;
        iv_choose_hats.setScaleType（ScaleType.MATRIX）; //设置图像缩放类型为onTouch运动兼容
        iv_choose_hats.setOnTouchListener（本）;            selected_hatImage =（ImageView的）findViewById（R.id.iv_selectedHat）;
            selected_hatImage.setOnTouchListener（本）;
            selected_hatImage.setScaleType（ScaleType.MATRIX）;@覆盖
公共布尔onTouch（视图V，MotionEvent事件）{    ImageView的观点=（ImageView的）V;    //转储触摸事件日志
    dumpEvent（事件）;    //这里处理触摸事件...
    开关（event.getAction（）及MotionEvent.ACTION_MASK）{        案例MotionEvent.ACTION_DOWN：
             savedMatrix.set（矩阵）;
             start.set（event.getX（），event.getY（））;
             模式= DRAG;
             lastEvent = NULL;             打破;        案例MotionEvent.ACTION_POINTER_DOWN：
            oldDist =间距（事件）;
            savedMatrix.set（矩阵）;
            中点（中，事件）;
            模式= ZOOM;            lastEvent =新的浮动[4];
            lastEvent [0] = event.getX（0）;
            lastEvent [1] = event.getX（1）;
            lastEvent [2] = event.getY（0）;
            lastEvent [3] = event.getY（1）;
            D =旋转（事件）;            打破;        案例MotionEvent.ACTION_UP：
        案例MotionEvent.ACTION_POINTER_UP：
            模式=无;
            lastEvent = NULL;            打破;        案例MotionEvent.ACTION_MOVE：
         如果（==模式拖动）{
            matrix.set（savedMatrix）;
            matrix.postTranslate（event.getX（） -  start.x，event.getY（） -  start.y）;
         }
         否则，如果（==模式缩放和放大器;＆安培; event.getPointerCount（）== 2）{
            浮newDist =间距（事件）;            matrix.set（savedMatrix）;
            如果（newDist＆GT; 10F）{
               浮规模= newDist / oldDist;
               matrix.postScale（规模化，规模化，mid.x，mid.y）;
            }
            如果（lastEvent！= NULL）{
                newRot =旋转（事件）;                浮动R = newRot-D;
                matrix.postRotate（R，view.getMeasuredWidth（）/ 2，view.getMeasuredHeight（）/ 2）;
            }
         }
         打破;
  }      view.setImageMatrix（矩阵）;
      返回true; //表示事件已处理
}
 

解决方案

需要使用具有onTouch事件自定义类的ImageView的一个

  iv_choose_hats =（ImageView的）findViewById（R.id.iv_chooseHats）;
iv_choose_hats.setScaleType（ScaleType.MATRIX）;
iv_choose_hats.setOnTouchListener（新Image_OnTouch（））;公共类Image_OnTouch实现OnTouchListener {
   @覆盖
   公共布尔onTouch（视图V，MotionEvent事件）{   }
}
 

I want to move rotate and resize images in my android application, i've found this code from stackoverflow and its working perfectly for my requirement.... but now i need to move two images so this code will duplicate first image movements when i switched to the second image.. 1)how can i do thats... 2)i tried to add separate on touch listeners for these two images, but none of the images didn't move at all

        iv_choose_hats = (ImageView)findViewById(R.id.iv_chooseHats);
        iv_choose_hats.setScaleType(ScaleType.MATRIX); // set the image scale type for compatible for onTouch movements
        iv_choose_hats.setOnTouchListener(this);

            selected_hatImage = (ImageView)findViewById(R.id.iv_selectedHat);
            selected_hatImage.setOnTouchListener(this);
            selected_hatImage.setScaleType(ScaleType.MATRIX);

@Override
public boolean onTouch(View v, MotionEvent event) {

    ImageView view = (ImageView) v;

    // Dump touch event to log
    dumpEvent(event);

    // Handle touch events here...
    switch (event.getAction() & MotionEvent.ACTION_MASK) {

        case MotionEvent.ACTION_DOWN:
             savedMatrix.set(matrix);
             start.set(event.getX(), event.getY());
             mode = DRAG;
             lastEvent = null;

             break;

        case MotionEvent.ACTION_POINTER_DOWN:
            oldDist = spacing(event);         
            savedMatrix.set(matrix);
            midPoint(mid, event);
            mode = ZOOM;

            lastEvent = new float[4];
            lastEvent[0] = event.getX(0);
            lastEvent[1] = event.getX(1);
            lastEvent[2] = event.getY(0);
            lastEvent[3] = event.getY(1);
            d = rotation(event);

            break;

        case MotionEvent.ACTION_UP:
        case MotionEvent.ACTION_POINTER_UP:
            mode = NONE;
            lastEvent = null;

            break;

        case MotionEvent.ACTION_MOVE:
         if (mode == DRAG) {
            matrix.set(savedMatrix);
            matrix.postTranslate(event.getX() - start.x, event.getY() - start.y);
         }
         else if (mode == ZOOM && event.getPointerCount()==2) {
            float newDist = spacing(event);

            matrix.set(savedMatrix);
            if (newDist > 10f) {              
               float scale = newDist / oldDist;
               matrix.postScale(scale, scale, mid.x, mid.y);
            } 
            if (lastEvent!=null){
                newRot = rotation(event); 

                float r = newRot-d;
                matrix.postRotate(r, view.getMeasuredWidth()/2, view.getMeasuredHeight()/2);  
            }
         }
         break;
  }

      view.setImageMatrix(matrix);
      return true; // indicate event was handled
}

解决方案

Need to use a custom class with onTouch event for one of the imageview

iv_choose_hats = (ImageView)findViewById(R.id.iv_chooseHats);
iv_choose_hats.setScaleType(ScaleType.MATRIX);
iv_choose_hats.setOnTouchListener(new Image_OnTouch());

public class Image_OnTouch implements OnTouchListener { 
   @Override
   public boolean onTouch(View v, MotionEvent event) {

   }
}

这篇关于Android的多图像缩放移动问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！