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Android - OnTouchListener無法正常工作

[英]Android - OnTouchListener not working

您好我已經構建了一個具有root relativelayout視圖的應用程序。 當用戶觸摸屏幕時我試圖設置一個觸摸式監聽器返回,但它似乎沒有觸發,我無法弄清楚我哪里出錯了。 我搜索過並在線查看,但從我看到的每個人似乎都使用與我相同的方法 - 我只是不起作用。
誰能明白為什么?

  RelativeLayout relativeLayout;

  relativeLayout = (RelativeLayout) findViewById(R.id.relativeLayout);

 //relative layout on touch listener
    relativeLayout.setOnTouchListener(new View.OnTouchListener(){

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

            //down - finger on screen
            if (event.getAction()== MotionEvent.ACTION_DOWN) {

                //store center of screen lat lon
                centerOfScreenLatLng = getScreenCenterLatLon();

                toastMsg = "down";
                toastShort();

                return true;
            }

            //up - finger off screen
            else if (event.getAction() == MotionEvent.ACTION_UP) {

                toastMsg = "up";
                toastShort();

                //get center of screen lat lon
                LatLng centerPoint = getScreenCenterLatLon();

                //if not equal then screen has been moved
                if (centerPoint != centerOfScreenLatLng){

                    //check which markers are currently in view
                    checkMarkersInView();
                }

                return true;
            }

            return false;
        }

    });


<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/relativeLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/grey_1"
    tools:context=".MainActivity"
    android:clickable="true"
    android:focusable="true" />

把它放在xml文件中的relativelayout的每個子節點:

android:clickable="false"
android:focusable="false"

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