Question

我有一个名为AnimatedView.java的类，从ImageView延伸，在此我有onTouchEvent方法，其中我有一个int类型的值，命名为count.my要求我希望通过这个每次执行事件时都会为MainActivity赋值。请帮助我，这里我的代码是

主要活动是：

    Context context;
    int score=0;
    EditText text;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main); 
        Intent intent=new Intent();
        int i=intent.getIntExtra("score",score);
        EditText editText=(EditText) findViewById(R.id.editText1);
        editText.setText(i);
    }

在animatedview.java中：

public boolean onTouchEvent(MotionEvent event) {
    Log.d("bharat", "ontouch called");
    int touchType = event.getAction();

    switch (touchType) {
        case MotionEvent.ACTION_MOVE:
            a = event.getX();
            b = event.getY();
            touching = true;
            if (dm_touched) {
                x = (int) a - bm_offsetx;
                y = (int) b - bm_offsety;
            }
            break;

        case MotionEvent.ACTION_DOWN:
            //x and y give you your touch coordinates
            a = event.getX();
            b = event.getY();
            touching = true;
            Log.d("bharat", "action_down called");
            if ((a > x) && (a < bm_w + x) && (b > y) && (b < bm_h + y)) {
                bm_offsetx = (int) x - x;
                bm_offsety = (int) y - y;
                count++;
                Log.i("bharat", "" + count);
                Intent intent1 = new Intent();
                intent1.putExtra("score", count);
            }
            dm_touched = true;

        case MotionEvent.ACTION_UP:
        default:
            dm_touched = false;
            touching = false;
    }

    return true;
}

Answer 1

您创建一个名为TouchCountListener的接口，如下所示：

TouchCountListener.java

public interface TouchCountListener {

    public void setTouchCount();
}

在活动中：

    public class yourActivity extends Activity implements TouchCountListener { 

        int animatedViewTouchCount=0;
         //..

        @Override
        protected void onCreate(Bundle savedInstanceState) {

        View  animatedView =  findViewById(R.id.ID_OFYOURANIMATEDVIEW);
        animatedView.setTouchCountListener(this);


           ///....
         }

   }

在animatedview.java中：

    TouchCountListener mTouchCountListener;
     int animatedViewTouchCount=0;

   public void setTouchCountListener(TouchCountListener t){

       mTouchCountListener=t;
    }

public boolean onTouchEvent(MotionEvent event) {

       mTouchCountListener.setTouchCount(++animatedViewTouchCount);

     //...

}

如何将值从动画视图传递给mainactivity

1 个答案: