Question

我的onTouchlistener功能之一出了问题。这是我的代码。

private float mPrevX;
private float mPrevY;
private static final String TAG = "moveAbleButton";
public MainActivity mainActivity;
public moveAbleButton(MainActivity mainActivity1)
{
    mainActivity=mainActivity1;
}

@Override
public boolean onTouch(View view, MotionEvent motionEvent) {

    float currX,currY;

    if (motionEvent.getActionMasked()==MotionEvent.ACTION_BUTTON_PRESS)
    {

        Log.d(TAG, "onTouch: ACTION_BUTTON_PRESS");
        Intent i = new Intent(mainActivity, newActivity.class);
        mainActivity.startActivity(i);
        return true;
    }

    else if(motionEvent.getActionMasked()==MotionEvent.ACTION_DOWN)
    {

        Log.d(TAG, "onTouch:ACTION_DOWN ");
        mPrevX = motionEvent.getX();
        mPrevY = motionEvent.getY();
        return true;
    }

    else if (motionEvent.getActionMasked()==MotionEvent.ACTION_MOVE)
    {

        Log.d(TAG, "onTouch: ACTION_MOVE");
        currX = motionEvent.getRawX();
        currY = motionEvent.getRawY();
        ViewGroup.MarginLayoutParams marginParams = new ViewGroup.MarginLayoutParams(view.getLayoutParams());
        marginParams.setMargins((int)(currX - mPrevX), (int)(currY - mPrevY),0, 0);
        android.support.design.widget.CoordinatorLayout.LayoutParams layoutParams = new android.support.design.widget.CoordinatorLayout.LayoutParams(marginParams);
        view.setLayoutParams(layoutParams);
        return true;
    }

    return false;
}

你可以看到我想在屏幕上的任何地方移动我的按钮（它工作正常）但我也想当我按下按钮我的新活动也叫。但是motionEvent.Action_Button_press 从不打电话。 我的活动中还有三栏的网格视图抱歉英语不好，并提前致谢。

和我的主要活动

 Button fab = (Button) findViewById(R.id.fab);
    moveAbleButton buttonMove = new moveAbleButton(this);

    fab.setOnTouchListener(buttonMove);

为什么我的MotionEvent.ACTION_BUTTON_PRESS没有调用

0 个答案: