如何更改视图的线性布局的位置？ [英] How do I change the position of a view in a Linear Layout.?

问题描述

所以我有一个线性布局已经填充了孩子。有没有办法来改变其在一个孩子所在的位置？

我想交换到它们之间的意见，如果这是任何帮助。

 最后的LinearLayout parrent =（的LinearLayout）findViewById（R.id.llWidgetScreen）;
    最终的LinearLayout Delailah =新的LinearLayout（本）;
    Delailah.setLayoutParams（新android.widget.LinearLayout.LayoutParams（android.view.ViewGroup.LayoutParams.FILL_PARENT，android.view.ViewGroup.LayoutParams.WRAP_CONTENT））;
    AppWidgetHostView wedgy = attachWidget（mAppWidgetHost.createView（这一点，appWidgetId，appWidgetInfo））;
    Delailah.addView（wedgy）;
    最终按钮BTN =新按钮（本）;
    btn.setLayoutParams（新android.widget.LinearLayout.LayoutParams（（INT）（20 *规模+ 0.5F），android.view.ViewGroup.LayoutParams.FILL_PARENT，0F））;
    btn.setOnLongClickListener（新OnLongClickListener（）{        @覆盖
        公共布尔onLongClick（视图v）{
            parrent.removeView（Delailah）;
            返回false;
        }
    }）;
    btn.setBackgroundColor（mainColor）;
    btn.setText（parrent.getChildCount（）+ 1+）;
    btn.setTextColor（文字颜色）;
    btn.setOnClickListener（新OnClickListener（）{
        @覆盖
        公共无效的onClick（视图v）{
            如果（ReadyForDrag == 0）
            {
                btn.setBackgroundColor（actiColor）;
                ReadyForDrag ++;
                DragPosition1 =的Integer.parseInt（btn.getText（）的toString（））;
            }
            否则如果（ReadyForDrag == 1）
            {
                btn.setBackgroundColor（actiColor）;
                ReadyForDrag = 0;
                V1的LinearLayout =（的LinearLayout）parrent.getChildAt（DragPosition1）;
                V2的LinearLayout =（的LinearLayout）parrent.getChildAt（的Integer.parseInt（btn.getText（）的toString（）））;
                //移动视图2比1位
                //移动视点1到2位
            }
        }
    }）;
    Delailah.addView（BTN）;
    parrent.addView（Delailah）;
 

解决方案

您可以使用 ViewGroup.removeView（视图）和<一个href=\"http://developer.android.com/reference/android/view/ViewGroup.html#addView%28android.view.View,%20int,%20android.view.ViewGroup.LayoutParams%29\"><$c$c>ViewGroup.addView(View孩子，INT指数，ViewGroup.LayoutParams PARAMS） 这一点。

So I have a Linear Layout already populated with children. Is there a way to change the position at which one of the children is located?

I'm trying to swap to views between them if that's of any help.

final LinearLayout parrent = (LinearLayout)findViewById(R.id.llWidgetScreen);
    final LinearLayout Delailah = new LinearLayout(this);
    Delailah.setLayoutParams(new android.widget.LinearLayout.LayoutParams(android.view.ViewGroup.LayoutParams.FILL_PARENT, android.view.ViewGroup.LayoutParams.WRAP_CONTENT));
    AppWidgetHostView wedgy = attachWidget(mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo));
    Delailah.addView(wedgy);
    final Button btn = new Button(this);
    btn.setLayoutParams(new android.widget.LinearLayout.LayoutParams((int)(20*scale +0.5f), android.view.ViewGroup.LayoutParams.FILL_PARENT, 0f));
    btn.setOnLongClickListener(new OnLongClickListener() {

        @Override
        public boolean onLongClick(View v) {
            parrent.removeView(Delailah);
            return false;
        }
    });
    btn.setBackgroundColor(mainColor);
    btn.setText(parrent.getChildCount()+1+"");
    btn.setTextColor(textColor);
    btn.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            if(ReadyForDrag==0)
            {
                btn.setBackgroundColor(actiColor);
                ReadyForDrag++;
                DragPosition1=Integer.parseInt(btn.getText().toString());
            }
            else if(ReadyForDrag==1)
            {
                btn.setBackgroundColor(actiColor);
                ReadyForDrag=0;
                LinearLayout v1 = (LinearLayout)parrent.getChildAt(DragPosition1);
                LinearLayout v2 = (LinearLayout)parrent.getChildAt(Integer.parseInt(btn.getText().toString()));
                //move view 2 to position 1
                //move view 1 to position 2
            }               
        }
    });
    Delailah.addView(btn);
    parrent.addView(Delailah);

解决方案

You can use ViewGroup.removeView(View) and ViewGroup.addView(View child, int index, ViewGroup.LayoutParams params) for this.

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