跟踪<textview> </textview>上的Touch Count

时间:2012-05-10 20:56:29

标签: android android-widget

Thanx花时间看问题。我正在尝试一些Android编程,我已经碰壁了;不知道如何解决它。我正在尝试仅在触摸计数为奇数时激活特定实体的动画。那是touchCount%2 != 0

public boolean onTouch(View v, MotionEvent event){

    ArrayList<TextView> textToDance = new ArrayList<TextView>();
    textToDance.add((TextView)findViewById(R.id.CAD5));
    textToDance.add((TextView)findViewById(R.id.CAD10));
    textToDance.add((TextView)findViewById(R.id.CAD20));
    textToDance.add((TextView)findViewById(R.id.CAD50));
    textToDance.add((TextView)findViewById(R.id.CAD100));

    switch (event.getAction()){
        case MotionEvent.ACTION_DOWN:
            for(TextView txtAnimate: textToDance){

                if(event.getRawX()<= txtAnimate.getX()+txtAnimate.getMeasuredWidth() && event.getRawX()>=txtAnimate.getX()){
                    if(event.getRawY()<= txtAnimate.getY()+105+txtAnimate.getMeasuredHeight() && event.getRawY()>=txtAnimate.getY()+105){
                        helpAnimate(txtAnimate, 0);
                    }
                }

            }

        break;

        case MotionEvent.ACTION_MOVE:
            Log.d("MOVE","MOVE");
        break;

        case MotionEvent.ACTION_UP:
            Log.d("UP","UP");
        break;

        default:
            break;
    }
    return true;
}

我尝试实现一个HashMap,但该地图重置了所有onTouch被调用。有什么建议吗?

1 个答案:

答案 0 :(得分:0)

首先,您希望在onTouch方法之外初始化数组。

ArrayList<TextView> textToDance = new ArrayList<TextView>();
textToDance.add((TextView)findViewById(R.id.CAD5));
textToDance.add((TextView)findViewById(R.id.CAD10));
textToDance.add((TextView)findViewById(R.id.CAD20));
textToDance.add((TextView)findViewById(R.id.CAD50));
textToDance.add((TextView)findViewById(R.id.CAD100));

然后你可以创建一个地图并用零计数值初始化它并注册一个onTouchListener(让我们假设它是你的Activity

HashMap<TextView,Integer> myMap = new HashMap<TextView,Integer>();
for (TextView tv : textToDance){
    tv.setOnTouchListener(this);
    myMap.put(tv,0);

} 

然后在onTouch中你会有类似......

public boolean onTouch(View v, MotionEvent event){
    switch (event.getAction()){
       case MotionEvent.ACTION_DOWN:
          if (myMap.contains(v)){
              myMap.put(v, myMap.get(v) + 1;
          }
       break;

这可能不是最理想的方式,但它应该足以让你开始实现你想要做的事情。