安卓在java中拖动多个按钮视图

Question

我有一个应用程序，我需要移动一堆按钮（就像将一堆卡片的一部分从一堆移动到另一堆）。我已经定义了xml布局中的所有按钮，并为所有按钮设置了触摸和拖动侦听器。 我可以在屏幕周围单独拖放任何按钮。但在某些情况下，我需要做的是将其他按钮拖动到我同时单击的原始按钮的顶部。 有没有一种方法可以“欺骗”或模拟按下另一个按钮（以便听者注册）？ 谢谢 ***2015年9月8日编辑 @凌驾 公共布尔onTouch（视图v，运动事件e）{ //托斯蒂（“麦克舔：+麦克舔”）； int startpos=0； 开关（如getAction（）&；运动事件。行动(行动){

    case MotionEvent.ACTION_DOWN:

        isWastePile=false;

        get_selected_deck(v); // determines which of 7 decks or layouts in the tablau you have
                                // clicked
        FromDeck = selecteddeck;
        FromDeckCard = deckcard;
        FromDeckButton = deckbutton;
        // if (!mClicking) {
        mClicking = true;
        //String piecetag = (String) v.getTag();

        // // IDEA!!!/ ///
        /*
         * I wrote a function that finds all the ImageButtons below where
         * the user clicked, and set them all to invisible. I then created a
         * new Linear Layout within the Linear Layout that the user clicked (during the ACTION_DOWN event),
         * and passed that into the Drag Shadow builder during the ACTION_MOVE event.
         * 
         * Once into the ACTION_DROP portion, I simply referenced global
         * variables to figure out if the user dropped in one or multiple
         * ImageButtons, and dealt with them accordingly.
         */

        //if (!isWastePile) {
        //draglayout.setClipChildren(false);
        lltemp = new LinearLayout(this);
        lltemp.setOrientation(LinearLayout.VERTICAL);
        LinearLayout.LayoutParams llparams = new LinearLayout.LayoutParams(
                LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

        llparams.setMargins(0, -52, 0, 0);
        lltemp.setLayoutParams(llparams);
        draglayout.addView(lltemp);


        for (int i = 0; i < deckstack_list[selecteddeck].size(); i++) {
            if (v == (draglayout.getChildAt(i))) {
                startpos = i;
                for (int o = i; o < deckstack_list[selecteddeck].size(); o++) {
                    // layout5.removeViewAt(o);
                    draglayout.getChildAt(o).setVisibility(View.GONE); // all
                                                                            // buttons
                                                                            // being
                    dragtempstack.push((Integer) deckstack_list[selecteddeck].get(o))   ;                                                   // dragged
                                                                            // to
                                                                            // invisible
                    // then recreate another linear layout within layout5
                    // and pass to dragshadow builder
                    // to do

                    // also set a GLOBAL variable with stack count (number
                    // of cards dragged)
                    lltemp.setClipChildren(false);
                    lltemp.addView(createtempButtons(o, startpos));


                }

            }
        }
        //} // end if wastepile check statement

        //tosty("dragtempstack size: "+dragtempstack.size());

        break;

    case MotionEvent.ACTION_MOVE:

        //tosty("Action MOVE");
        Log.i("ACTION Event: ", "ACTION MOVE");
        // v = layout5;


        v = lltemp;


        v.setVisibility(View.INVISIBLE);
        v.bringToFront();
        v.invalidate();
        v.setVisibility(View.VISIBLE);

        //DragShadowBuilder shadowBuilder = new View.DragShadowBuilder(v);
        DeckDragShadow shadowBuilder = new DeckDragShadow(v);
        v.startDrag(null, shadowBuilder, v, 0);


        correctDrag = false;

        break;

    private Button createtempButtons(final int i, final int startpos) {
    final Button b = new Button(this);

    b.setOnTouchListener(this);
    b.setOnDragListener(new DeckDragListener());

    b.setBackgroundResource(cardimagearray[dragdeckstack.get(i)]);

    float width = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
            45, getResources().getDisplayMetrics());
    float height = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
            61, getResources().getDisplayMetrics());

    LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
            (int) width, (int) height);
    float margTop = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
            -36, getResources().getDisplayMetrics());

    if (i > startpos) {
        params.setMargins(0, -57, 0, 0);
    }

    b.setLayoutParams(params);

    // b.bringToFront();
    // b.invalidate();
    b.setVisibility(View.VISIBLE);

    return b;

Answer 1

不要尝试为每个按钮复制侦听器，而是将按钮视为组。当你点击一组中的一个按钮时，它会分成两组：上面有按钮的按钮和你留下的东西。然后将该组拖放到其他组中

正如Templerschaf建议的那样，这些小组可以是线性布局：

• 单击线性布局
• 它记录了哪个项目
• 在正确的位置创建一个新的线性布局，其中包含该项目下方的项目
• 删除单击项目下方的项目并相应调整大小
• 然后可以继续拖动布局
• 然后，它可以被放到另一个LinearLayout上，这将把项目添加到它自己的列表中

这很像ListView动画。见：

https://www.youtube.com/watch?v=_BZIvjMgH-Q

https://www.youtube.com/watch?v=mwE61B56pVQ

https://github.com/bauerca/drag-sort-listview/blob/master/library/src/com/mobeta/android/dslv/DragSortListView.java