Android gridview不会触发onItemClickListener

时间:2012-09-24 13:36:56

标签: android gridview ontouchlistener onitemclicklistener

我已经阅读了很多关于这个问题的帖子,通常是因为在gridview中包含了可点击的对象,但这不是我的情况。我有一个带有imageview和gridview的framelayout,我在gridview中使用ontouchlistener移动它并且它可以工作,但是onItemClickListener不会触发。我的xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout android:id="@+id/layoutJuego"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:baselineAligned="false"
android:orientation="vertical" 
xmlns:android="http://schemas.android.com/apk/res/android">
<paricio.toni.caththemole.MyFrameLayout
    android:id="@+id/frame"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerHorizontal="true"
    android:layout_centerVertical="true" >
    <ImageView
        android:id="@+id/fondo"
        android:layout_width="760dp"
        android:layout_height="760dp"
        android:layout_gravity="center"
        android:contentDescription="@android:string/untitled"
        android:scaleType="fitXY"
        android:src="@drawable/terrenoarena" />
    <GridView
        android:id="@+id/gridView1"
        android:layout_width="640dp"
        android:layout_height="640dp"
        android:layout_gravity="center"
        android:columnWidth="80dp"
        android:horizontalSpacing="0dp"
        android:numColumns="8"
        android:scrollbars="none"
        android:stretchMode="columnWidth"
        android:verticalSpacing="0dp" >
    </GridView>
</paricio.toni.caththemole.MyFrameLayout>

MyFrameLayout是一个简单的framelayout,扩展为大于屏幕。我的gridview只有imageviews(8x8结构中的64)。在我使用gridview.setOnTouchListener移动myFrameLayout之前它工作得很好但是我已经摇了所以我改变了移动imageview和gridview,结果? bye bye shake和bye bye onItemClickListener

    gridview = (GridView) findViewById(R.id.gridView1);
    adaptador = new ImageAdapter(this);
    gridview.setAdapter(adaptador);

    gridview.setOnTouchListener(new OnTouchListener() { 
        public boolean onTouch(View v, MotionEvent event) {
            int desplazamiento[]={0,0};
            fondo.getLocationOnScreen(desplazamiento);
            switch (event.getAction()) {
                case MotionEvent.ACTION_DOWN:
                    mx = event.getX();
                    my = event.getY();
                    return true;
                case MotionEvent.ACTION_MOVE:
                    curX = event.getX();
                    curY = event.getY();
                    fondo.scrollBy((int) (mx - curX), (int) (my - curY));
                    gridview.scrollBy((int) (mx - curX), (int) (my - curY));
                    mx = curX;
                    my = curY;
                    return true;
                case MotionEvent.ACTION_UP:
                    curX = event.getX();
                    curY = event.getY();
                    fondo.scrollBy((int) (mx - curX), (int) (my - curY));
                    gridview.scrollBy((int) (mx - curX), (int) (my - curY));
                    return true;
            }
            return false;
        }
    });

    gridview.setOnItemClickListener(new OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View v, int position, 
                long id) {
            Log.i("miTraza","OnItemClick"); // Don't trigger
                    ...
        }
    });

我认为我可以使用onTouchListener和事件ACTION_DOWN和ACTION_UP连续(没有ACTION_MOVE)手动获取gridview单元格计算的位置,但我想让它作为最后一个选项。

感谢您的帮助。

1 个答案:

答案 0 :(得分:2)

最后我不得不在OnTouch内部手动执行OnItemClick。这是我使用的代码,方法adaptador.getPosition(gridview,(int)x,(int)m)返回屏幕上点击的选定位置。我尝试过使用pointtoposition(int,int)但是返回错误的位置。

    gridview.setOnTouchListener(new OnTouchListener() { 
        public boolean onTouch(View v, MotionEvent event) {
            int desplazamiento[]={0,0};
            fondo.getLocationOnScreen(desplazamiento);
            switch (event.getAction()) {
                case MotionEvent.ACTION_DOWN:
                    click = true;
                    mx = event.getX();
                    my = event.getY();                     
                    return true;
                case MotionEvent.ACTION_MOVE:
                    curX = event.getX();
                    curY = event.getY();
                    if (click && Math.abs(mx-curX)<5 && Math.abs(my-curY)<5) {
                        Log.i("miTraza","movimiento pequeño");
                        click = true;
                        return true;
                    } else {
                        click = false;
                    }
                    fondo.scrollBy((int) (mx - curX), (int) (my - curY));
                    gridview.scrollBy((int) (mx - curX), (int) (my - curY));
                    mx = curX;
                    my = curY;
                    return true;
                case MotionEvent.ACTION_UP:
                    if (click) {
                        int position = adaptador.getPosition(gridview, (int)mx, (int)my);
                        if (position>=0 && position<=63) {
                            gridview.performItemClick(gridview, position, 0);
                        }
                        click = false;
                    } 
                    return true;
            }
            return false;
        }
    });