在android中完成拖放操作后如何获取网格布局中文本的顺序

Question

我有一个带有文本的网格布局，我可以在其中执行拖放操作。一切正常，但我想在完成一些 拖放操作 后记录网格布局或文本的顺序。我尝试在执行拖动后获取文本，但它没有给我更新的位置。

这是我的代码，我在其中动态生成“n”个文本视图并将其添加到 GRID LAYOUT

    text = new TextView[sizeofgrid];
    for (int i = 0; i < sizeofgrid; i++) {
        text[i] = new TextView(MainActivity.this); // create the txt view
        first = new GridLayout.LayoutParams();
        first.width = pergrid;
        text[i].setLayoutParams(first);
        text[i].setGravity(Gravity.CENTER);
        first.height = LinearLayout.LayoutParams.MATCH_PARENT;
        text[i].setText(String.valueOf(finallist.get(i)));

        text[i].setTextSize(20);
        text[i].setBackgroundResource(R.drawable.back);
        text[i].setTextColor((Color.parseColor("#0B0B0B")));
        //  text[i].setPadding(5, 25, 10, 25);
        text[i].setPadding(5, 10, 0, 25);
         first.setMargins(0, 10, 5, 20);// margin can be set nly to layout and cant be set directly to textview
        text[i].setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View view, MotionEvent motionEvent) {
                final ClipData data = ClipData.newPlainText("", ""); 
                View.DragShadowBuilder shadowBuilder = new View.DragShadowBuilder(view); 
                view.startDrag(data, shadowBuilder, view, 0);
                view.setVisibility(View.VISIBLE); 
                Log.d(tag, "calleddd");
                return true;
            }
        });

这是执行拖动的代码

   class DragListener implements View.OnDragListener {
    @Override
    public boolean onDrag(View v, DragEvent event) { // the view which we are dragging and the events whcih gets triggred

       final View view = (View) event.getLocalState();
        switch (event.getAction()) {
            case DragEvent.ACTION_DRAG_LOCATION: // if the shadow of the view is within the bounds for a long amt of time , it will get triggred
                // do nothing if hovering above own position
                dragflag = true;
                if (view == v) return true; // can or cant be thr..makes no diff
                // get the new list index
                final int index = calculateNewIndex(event.getX(), event.getY()); // as soon as we start moving from current pos, it will start
                //calculating new value and will get relocated
                // remove the view from the old position
                gl.removeView(view); //remove the view from original pos
                // and push to the new
                gl.addView(view, index); // add the view to newly cal pos
                break;
            case DragEvent.ACTION_DROP:
                view.setVisibility(View.VISIBLE); 
                //tested by retrieving the text of textview after dropping but it hasn't got updated.

                for(int i = 0; i < sizeofgrid; i++)
                {
                    Log.d(tag,"thetexssis"+text[i].getText().toString());
                }
                break;
            case DragEvent.ACTION_DRAG_ENDED:
                if (!event.getResult()) {
                    view.setVisibility(View.VISIBLE); 

                }
                break;
        }
        return true;
    }
}

我通过检索文本视图的文本进行了测试，但它在执行拖放之前给了我相同的文本顺序。我不知道如何获取当前文本视图在网格布局中的顺序。

任何帮助都会很棒！谢谢

Answer 1

我已经通过以下代码解决了，

    for (int k = 0; k < sizeofgrid; k++) {
        View view = gl.getChildAt(k);
        Log.d(tag,"droppedis");
        // Do something with v.
        if (view instanceof TextView) {
            TextView editText = (TextView) view;
            arr.add(editText.getText().toString());
            Log.d(tag, "thelistis" + arr);
        }

    }

我正在从父级获取所有视图并检查它是否是 textview 的实例。如果是这样，那么我将从 textview 获取文本并存储在列表中。